bump version

Merge branch 'TheFuzzStone-master'
renamed directory to match locale
2025-09-03 08:23:04 +02:00 · 2020-06-01 20:14:03 +02:00 · 2020-06-01 20:09:51 +02:00 · 2020-06-01 20:08:22 +02:00 · 2020-06-01 20:04:55 +02:00 · 2020-06-01 19:57:33 +02:00
111 changed files with 2890 additions and 2512 deletions
--- a/app/CMakeLists.txt
+++ b/app/CMakeLists.txt
@@ -155,6 +155,18 @@ add_library(net STATIC IMPORTED)
 set_target_properties(net PROPERTIES IMPORTED_LOCATION
        ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libnet.a)

+add_library(hardforks STATIC IMPORTED)
+set_target_properties(hardforks PROPERTIES IMPORTED_LOCATION
+        ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libhardforks.a)
+
+add_library(randomx STATIC IMPORTED)
+set_target_properties(randomx PROPERTIES IMPORTED_LOCATION
+        ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/librandomx.a)
+
+add_library(rpc_base STATIC IMPORTED)
+set_target_properties(rpc_base PROPERTIES IMPORTED_LOCATION
+        ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/librpc_base.a)
+
 #############
 # System
 #############
@@ -188,6 +200,9 @@ target_link_libraries(  monerujo
                        device_trezor
                        multisig
                        version
+                        randomx
+                        hardforks
+                        rpc_base

                        boost_chrono
                        boost_date_time
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,8 +7,8 @@ android {
        applicationId "com.m2049r.xmrwallet"
        minSdkVersion 21
        targetSdkVersion 28
-        versionCode 179
-        versionName "1.11.9 'Chernushka'"
+        versionCode 301
+        versionName "1.13.1 'ReStart'"

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        externalNativeBuild {
--- a/app/src/main/cpp/monerujo.cpp
+++ b/app/src/main/cpp/monerujo.cpp
@@ -785,7 +785,7 @@ Java_com_m2049r_xmrwallet_model_Wallet_getDaemonBlockChainTargetHeight(JNIEnv *e
 }

 JNIEXPORT jboolean JNICALL
-Java_com_m2049r_xmrwallet_model_Wallet_isSynchronized(JNIEnv *env, jobject instance) {
+Java_com_m2049r_xmrwallet_model_Wallet_isSynchronizedJ(JNIEnv *env, jobject instance) {
    Bitmonero::Wallet *wallet = getHandle<Bitmonero::Wallet>(env, instance);
    return static_cast<jboolean>(wallet->synchronized());
 }
@@ -909,6 +909,16 @@ Java_com_m2049r_xmrwallet_model_Wallet_refreshAsync(JNIEnv *env, jobject instanc
    wallet->refreshAsync();
 }

+//TODO virtual bool rescanBlockchain() = 0;
+
+//virtual void rescanBlockchainAsync() = 0;
+JNIEXPORT void JNICALL
+Java_com_m2049r_xmrwallet_model_Wallet_rescanBlockchainAsync(JNIEnv *env, jobject instance) {
+    Bitmonero::Wallet *wallet = getHandle<Bitmonero::Wallet>(env, instance);
+    wallet->rescanBlockchainAsync();
+}
+
+
 //TODO virtual void setAutoRefreshInterval(int millis) = 0;
 //TODO virtual int autoRefreshInterval() const = 0;

@@ -1310,7 +1320,6 @@ Java_com_m2049r_xmrwallet_model_PendingTransaction_getFirstTxIdJ(JNIEnv *env, jo
        return nullptr;
 }

-
 JNIEXPORT jlong JNICALL
 Java_com_m2049r_xmrwallet_model_PendingTransaction_getTxCount(JNIEnv *env, jobject instance) {
    Bitmonero::PendingTransaction *tx = getHandle<Bitmonero::PendingTransaction>(env, instance);
@@ -1396,6 +1405,11 @@ Java_com_m2049r_xmrwallet_model_WalletManager_setLogLevel(JNIEnv *env, jclass cl
    Bitmonero::WalletManagerFactory::setLogLevel(level);
 }

+JNIEXPORT jstring JNICALL
+Java_com_m2049r_xmrwallet_model_WalletManager_moneroVersion(JNIEnv *env, jclass clazz) {
+    return env->NewStringUTF(MONERO_VERSION);
+}
+
 //
 // Ledger Stuff
 //
--- a/app/src/main/cpp/monerujo.h
+++ b/app/src/main/cpp/monerujo.h
@@ -54,6 +54,8 @@ extern "C"
 {
 #endif

+extern const char* const MONERO_VERSION; // the actual monero core version
+
 // from monero-core crypto/hash-ops.h - avoid #including monero code here
 enum {
    HASH_SIZE = 32,
--- a/app/src/main/java/com/btchip/comm/android/BTChipTransportAndroidHID.java
+++ b/app/src/main/java/com/btchip/comm/android/BTChipTransportAndroidHID.java
@@ -46,8 +46,12 @@ public class BTChipTransportAndroidHID implements BTChipTransport {
        HashMap<String, UsbDevice> deviceList = manager.getDeviceList();
        for (UsbDevice device : deviceList.values()) {
            Timber.d("%04X:%04X %s, %s", device.getVendorId(), device.getProductId(), device.getManufacturerName(), device.getProductName());
-            if ((device.getVendorId() == VID) && (device.getProductId() == PID_HID)) {
-                return device;
+            if (device.getVendorId() == VID) {
+                final int deviceProductId = device.getProductId();
+                for (int pid : PID_HIDS) {
+                    if (deviceProductId == pid)
+                        return device;
+                }
            }
        }
        return null;
@@ -74,7 +78,7 @@ public class BTChipTransportAndroidHID implements BTChipTransport {
    }

    private static final int VID = 0x2C97;
-    private static final int PID_HID = 0x0001;
+    private static final int[] PID_HIDS = {0x0001, 0x0004};

    private UsbDeviceConnection connection;
    private UsbInterface dongleInterface;
--- a/app/src/main/java/com/m2049r/xmrwallet/GenerateFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/GenerateFragment.java
@@ -79,6 +79,23 @@ public class GenerateFragment extends Fragment {

    private String type = null;

+    private void clearErrorOnTextEntry(final TextInputLayout textInputLayout) {
+        textInputLayout.getEditText().addTextChangedListener(new TextWatcher() {
+            @Override
+            public void afterTextChanged(Editable editable) {
+                textInputLayout.setError(null);
+            }
+
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+            }
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+            }
+        });
+    }
+
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
@@ -110,6 +127,23 @@ public class GenerateFragment extends Fragment {
                }
            }
        });
+        clearErrorOnTextEntry(etWalletName);
+
+        etWalletPassword.getEditText().addTextChangedListener(new TextWatcher() {
+            @Override
+            public void afterTextChanged(Editable editable) {
+                checkPassword();
+            }
+
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+            }
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+            }
+        });
+
        etWalletMnemonic.getEditText().setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
@@ -118,6 +152,8 @@ public class GenerateFragment extends Fragment {
                }
            }
        });
+        clearErrorOnTextEntry(etWalletMnemonic);
+
        etWalletAddress.getEditText().setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
@@ -126,6 +162,8 @@ public class GenerateFragment extends Fragment {
                }
            }
        });
+        clearErrorOnTextEntry(etWalletAddress);
+
        etWalletViewKey.getEditText().setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
@@ -134,6 +172,8 @@ public class GenerateFragment extends Fragment {
                }
            }
        });
+        clearErrorOnTextEntry(etWalletViewKey);
+
        etWalletSpendKey.getEditText().setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
@@ -142,6 +182,7 @@ public class GenerateFragment extends Fragment {
                }
            }
        });
+        clearErrorOnTextEntry(etWalletSpendKey);

        Helper.showKeyboard(getActivity());

@@ -310,21 +351,6 @@ public class GenerateFragment extends Fragment {
            }
        });

-        etWalletPassword.getEditText().addTextChangedListener(new TextWatcher() {
-            @Override
-            public void afterTextChanged(Editable editable) {
-                checkPassword();
-            }
-
-            @Override
-            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
-            }
-
-            @Override
-            public void onTextChanged(CharSequence s, int start, int before, int count) {
-            }
-        });
-
        etWalletName.requestFocus();
        initZxcvbn();

@@ -412,7 +438,7 @@ public class GenerateFragment extends Fragment {
            height = RestoreHeight.getInstance().getHeight(parser.parse(restoreHeight));
        } catch (ParseException ex) {
        }
-        if (height <= 0)
+        if ((height <= 0) && (restoreHeight.length() == 8))
            try {
                // is it a date without dashes?
                SimpleDateFormat parser = new SimpleDateFormat("yyyyMMdd");
@@ -682,8 +708,7 @@ public class GenerateFragment extends Fragment {
            }
        });

-        // set FLAG_SECURE to prevent screenshots in Release Mode
-        if (!(BuildConfig.DEBUG && BuildConfig.FLAVOR_type.equals("alpha"))) {
+        if (Helper.preventScreenshot()) {
            ledgerDialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);
        }

--- a/app/src/main/java/com/m2049r/xmrwallet/GenerateReviewFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/GenerateReviewFragment.java
@@ -55,6 +55,8 @@ import com.m2049r.xmrwallet.util.KeyStoreHelper;
 import com.m2049r.xmrwallet.util.MoneroThreadPoolExecutor;
 import com.m2049r.xmrwallet.widget.Toolbar;

+import java.text.NumberFormat;
+
 import timber.log.Timber;

 public class GenerateReviewFragment extends Fragment {
@@ -72,6 +74,7 @@ public class GenerateReviewFragment extends Fragment {
    private TextView tvWalletPassword;
    private TextView tvWalletAddress;
    private TextView tvWalletMnemonic;
+    private TextView tvWalletHeight;
    private TextView tvWalletViewKey;
    private TextView tvWalletSpendKey;
    private ImageButton bCopyAddress;
@@ -99,6 +102,7 @@ public class GenerateReviewFragment extends Fragment {
        tvWalletViewKey = view.findViewById(R.id.tvWalletViewKey);
        tvWalletSpendKey = view.findViewById(R.id.tvWalletSpendKey);
        tvWalletMnemonic = view.findViewById(R.id.tvWalletMnemonic);
+        tvWalletHeight = view.findViewById(R.id.tvWalletHeight);
        bCopyAddress = view.findViewById(R.id.bCopyAddress);
        bAdvancedInfo = view.findViewById(R.id.bAdvancedInfo);
        llAdvancedInfo = view.findViewById(R.id.llAdvancedInfo);
@@ -188,6 +192,7 @@ public class GenerateReviewFragment extends Fragment {
    private class AsyncShow extends AsyncTask<String, Void, Boolean> {
        String name;
        String address;
+        long height;
        String seed;
        String viewKey;
        String spendKey;
@@ -232,6 +237,7 @@ public class GenerateReviewFragment extends Fragment {
            }

            address = wallet.getAddress();
+            height = wallet.getRestoreHeight();
            seed = wallet.getSeed();
            switch (wallet.getDeviceType()) {
                case Device_Ledger:
@@ -264,6 +270,7 @@ public class GenerateReviewFragment extends Fragment {
                llPassword.setVisibility(View.VISIBLE);
                tvWalletPassword.setText(getPassword());
                tvWalletAddress.setText(address);
+                tvWalletHeight.setText(NumberFormat.getInstance().format(height));
                if (!seed.isEmpty()) {
                    llMnemonic.setVisibility(View.VISIBLE);
                    tvWalletMnemonic.setText(seed);
@@ -288,6 +295,7 @@ public class GenerateReviewFragment extends Fragment {
            } else {
                // TODO show proper error message and/or end the fragment?
                tvWalletAddress.setText(walletStatus.toString());
+                tvWalletHeight.setText(walletStatus.toString());
                tvWalletMnemonic.setText(walletStatus.toString());
                tvWalletViewKey.setText(walletStatus.toString());
                tvWalletSpendKey.setText(walletStatus.toString());
@@ -622,8 +630,8 @@ public class GenerateReviewFragment extends Fragment {
                return false;
            }
        });
-        // set FLAG_SECURE to prevent screenshots in Release Mode
-        if (!(BuildConfig.DEBUG && BuildConfig.FLAVOR_type.equals("alpha"))) {
+
+        if (Helper.preventScreenshot()) {
            openDialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);
        }

--- a/app/src/main/java/com/m2049r/xmrwallet/LoginActivity.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/LoginActivity.java
@@ -940,8 +940,9 @@ public class LoginActivity extends BaseActivity
                    @Override
                    public boolean createWallet(File aFile, String password) {
                        NodeInfo currentNode = getNode();
+                        // get it from the connected node if we have one, and go back ca. 4 days
                        final long restoreHeight =
-                                (currentNode != null) ? currentNode.getHeight() - 20 : -1;
+                                (currentNode != null) ? currentNode.getHeight() - 2000 : -1;
                        Wallet newWallet = WalletManager.getInstance()
                                .createWallet(aFile, password, MNEMONIC_LANGUAGE, restoreHeight);
                        return checkAndCloseWallet(newWallet);
@@ -1359,17 +1360,30 @@ public class LoginActivity extends BaseActivity
        if (Ledger.ENABLED)
            try {
                Ledger.connect(usbManager, usbDevice);
-                registerDetachReceiver();
-                onLedgerAction();
-                runOnUiThread(new Runnable() {
-                    @Override
-                    public void run() {
-                        Toast.makeText(LoginActivity.this,
-                                getString(R.string.toast_ledger_attached, usbDevice.getProductName()),
-                                Toast.LENGTH_SHORT)
-                                .show();
-                    }
-                });
+                if (!Ledger.check()) {
+                    Ledger.disconnect();
+                    runOnUiThread(new Runnable() {
+                        @Override
+                        public void run() {
+                            Toast.makeText(LoginActivity.this,
+                                    getString(R.string.toast_ledger_start_app, usbDevice.getProductName()),
+                                    Toast.LENGTH_SHORT)
+                                    .show();
+                        }
+                    });
+                } else {
+                    registerDetachReceiver();
+                    onLedgerAction();
+                    runOnUiThread(new Runnable() {
+                        @Override
+                        public void run() {
+                            Toast.makeText(LoginActivity.this,
+                                    getString(R.string.toast_ledger_attached, usbDevice.getProductName()),
+                                    Toast.LENGTH_SHORT)
+                                    .show();
+                        }
+                    });
+                }
            } catch (IOException ex) {
                runOnUiThread(new Runnable() {
                    @Override
--- a/app/src/main/java/com/m2049r/xmrwallet/LoginFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/LoginFragment.java
@@ -439,10 +439,13 @@ public class LoginFragment extends Fragment implements WalletInfoAdapter.OnInter
            }
            Collections.sort(nodesToTest, NodeInfo.BestNodeComparator);
            NodeInfo bestNode = nodesToTest.get(0);
-            if (bestNode.isValid())
+            if (bestNode.isValid()) {
+                activityCallback.setNode(bestNode);
                return bestNode;
-            else
+            } else {
+                activityCallback.setNode(null);
                return null;
+            }
        }

        @Override
@@ -450,7 +453,6 @@ public class LoginFragment extends Fragment implements WalletInfoAdapter.OnInter
            if (!isAdded()) return;
            pbNode.setVisibility(View.INVISIBLE);
            llNode.setVisibility(View.VISIBLE);
-            activityCallback.setNode(result);
            if (result != null) {
                Timber.d("found a good node %s", result.toString());
                showNode(result);
--- a/app/src/main/java/com/m2049r/xmrwallet/NodeFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/NodeFragment.java
@@ -266,6 +266,7 @@ public class NodeFragment extends Fragment
                seedList.add(new NodeInfo(new InetSocketAddress("198.74.231.92", 18080)));
                seedList.add(new NodeInfo(new InetSocketAddress("195.154.123.123", 18080)));
                seedList.add(new NodeInfo(new InetSocketAddress("212.83.172.165", 18080)));
+                seedList.add(new NodeInfo(new InetSocketAddress("192.110.160.146", 18080)));
                d.seedPeers(seedList);
                d.awaitTermination(NODES_TO_FIND);
            }
@@ -506,8 +507,8 @@ public class NodeFragment extends Fragment
                    });
                }
            });
-            // set FLAG_SECURE to prevent screenshots in Release Mode
-            if (!(BuildConfig.DEBUG && BuildConfig.FLAVOR_type.equals("alpha"))) {
+
+            if (Helper.preventScreenshot()) {
                editDialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);
            }

--- a/app/src/main/java/com/m2049r/xmrwallet/SecureActivity.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/SecureActivity.java
@@ -21,6 +21,7 @@ import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v7.app.AppCompatActivity;

+import com.m2049r.xmrwallet.util.Helper;
 import com.m2049r.xmrwallet.util.LocaleHelper;

 import static android.view.WindowManager.LayoutParams;
@@ -30,8 +31,7 @@ public abstract class SecureActivity extends AppCompatActivity {
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

-        // set FLAG_SECURE to prevent screenshots in Release Mode
-        if (!(BuildConfig.DEBUG && BuildConfig.FLAVOR_type.equals("alpha"))) {
+        if (Helper.preventScreenshot()) {
            getWindow().setFlags(LayoutParams.FLAG_SECURE, LayoutParams.FLAG_SECURE);
        }
    }
--- a/app/src/main/java/com/m2049r/xmrwallet/WalletActivity.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/WalletActivity.java
@@ -217,6 +217,20 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
        releaseWakeLock();
    }

+    private void onWalletRescan() {
+        try {
+            final WalletFragment walletFragment = (WalletFragment)
+                    getSupportFragmentManager().findFragmentByTag(WalletFragment.class.getName());
+            getWallet().rescanBlockchainAsync();
+            synced = false;
+            walletFragment.unsync();
+            invalidateOptionsMenu();
+        } catch (ClassCastException ex) {
+            Timber.d(ex.getLocalizedMessage());
+            // keep calm and carry on
+        }
+    }
+
    @Override
    protected void onStop() {
        Timber.d("onStop()");
@@ -243,7 +257,7 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
    public boolean onPrepareOptionsMenu(Menu menu) {
        MenuItem renameItem = menu.findItem(R.id.action_rename);
        if (renameItem != null)
-            renameItem.setVisible(hasWallet() && getWallet().isSynchronized());
+            renameItem.setEnabled(hasWallet() && getWallet().isSynchronized());
        MenuItem streetmodeItem = menu.findItem(R.id.action_streetmode);
        if (streetmodeItem != null)
            if (isStreetMode()) {
@@ -251,12 +265,18 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
            } else {
                streetmodeItem.setIcon(R.drawable.gunther_24dp);
            }
+        final MenuItem rescanItem = menu.findItem(R.id.action_rescan);
+        if (rescanItem != null)
+            rescanItem.setEnabled(isSynced());
        return super.onPrepareOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
+            case R.id.action_rescan:
+                onWalletRescan();
+                return true;
            case R.id.action_info:
                onWalletDetails();
                return true;
--- a/app/src/main/java/com/m2049r/xmrwallet/WalletFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/WalletFragment.java
@@ -50,9 +50,8 @@ import com.m2049r.xmrwallet.widget.Toolbar;

 import java.text.NumberFormat;
 import java.util.ArrayList;
-import java.util.Date;
+import java.util.Arrays;
 import java.util.List;
-import java.util.stream.Collectors;

 import timber.log.Timber;

@@ -114,9 +113,12 @@ public class WalletFragment extends Fragment
        ivSynced = view.findViewById(R.id.ivSynced);

        sCurrency = view.findViewById(R.id.sCurrency);
-        ArrayAdapter currencyAdapter = ArrayAdapter.createFromResource(getContext(), R.array.currency, R.layout.item_spinner_balance);
-        currencyAdapter.setDropDownViewResource(R.layout.item_spinner_dropdown_item);
-        sCurrency.setAdapter(currencyAdapter);
+        List<String> currencies = new ArrayList<>();
+        currencies.add(Helper.BASE_CRYPTO);
+        currencies.addAll(Arrays.asList(getResources().getStringArray(R.array.currency)));
+        ArrayAdapter<String> spinnerAdapter = new ArrayAdapter<>(getContext(), R.layout.item_spinner_balance, currencies);
+        spinnerAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
+        sCurrency.setAdapter(spinnerAdapter);

        bSend = view.findViewById(R.id.bSend);
        bReceive = view.findViewById(R.id.bReceive);
@@ -220,7 +222,7 @@ public class WalletFragment extends Fragment
        // at this point selection is XMR in case of error
        String displayB;
        double amountA = Helper.getDecimalAmount(unlockedBalance).doubleValue();
-        if (!Helper.CRYPTO.equals(balanceCurrency)) { // not XMR
+        if (!Helper.BASE_CRYPTO.equals(balanceCurrency)) { // not XMR
            double amountB = amountA * balanceRate;
            displayB = Helper.getFormattedAmount(amountB, false);
        } else { // XMR
@@ -229,7 +231,7 @@ public class WalletFragment extends Fragment
        showBalance(displayB);
    }

-    String balanceCurrency = Helper.CRYPTO;
+    String balanceCurrency = Helper.BASE_CRYPTO;
    double balanceRate = 1.0;

    private final ExchangeApi exchangeApi = Helper.getExchangeApi();
@@ -245,7 +247,7 @@ public class WalletFragment extends Fragment
            Timber.d(currency);
            if (!currency.equals(balanceCurrency) || (balanceRate <= 0)) {
                showExchanging();
-                exchangeApi.queryExchangeRate(Helper.CRYPTO, currency,
+                exchangeApi.queryExchangeRate(Helper.BASE_CRYPTO, currency,
                        new ExchangeCallback() {
                            @Override
                            public void onSuccess(final ExchangeRate exchangeRate) {
@@ -301,10 +303,10 @@ public class WalletFragment extends Fragment

    public void exchange(final ExchangeRate exchangeRate) {
        hideExchanging();
-        if (!Helper.CRYPTO.equals(exchangeRate.getBaseCurrency())) {
+        if (!Helper.BASE_CRYPTO.equals(exchangeRate.getBaseCurrency())) {
            Timber.e("Not XMR");
            sCurrency.setSelection(0, true);
-            balanceCurrency = Helper.CRYPTO;
+            balanceCurrency = Helper.BASE_CRYPTO;
            balanceRate = 1.0;
        } else {
            int spinnerPosition = ((ArrayAdapter) sCurrency.getAdapter()).getPosition(exchangeRate.getQuoteCurrency());
@@ -354,6 +356,15 @@ public class WalletFragment extends Fragment
        if (isVisible()) enableAccountsList(true); //otherwise it is enabled in onResume()
    }

+    public void unsync() {
+        if (!activityCallback.isWatchOnly()) {
+            bSend.setVisibility(View.INVISIBLE);
+            bSend.setEnabled(false);
+        }
+        if (isVisible()) enableAccountsList(false); //otherwise it is enabled in onResume()
+        firstBlock = 0;
+    }
+
    boolean walletLoaded = false;

    public void onLoaded() {
--- a/app/src/main/java/com/m2049r/xmrwallet/data/BarcodeData.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/data/BarcodeData.java
@@ -59,42 +59,36 @@ public class BarcodeData {
    final public Asset asset;
    final public String address;
    final public String addressName;
-    final public String paymentId;
    final public String amount;
    final public String description;
    final public Security security;
    final public String bip70;

    public BarcodeData(Asset asset, String address) {
-        this(asset, address, null, null, null, null, Security.NORMAL);
+        this(asset, address, null, null, null, Security.NORMAL);
    }

    public BarcodeData(Asset asset, String address, String amount) {
-        this(asset, address, null, null, null, amount, Security.NORMAL);
+        this(asset, address, null, null, amount, Security.NORMAL);
    }

    public BarcodeData(Asset asset, String address, String amount, String description, Security security) {
-        this(asset, address, null, null, description, amount, security);
-    }
-
-    public BarcodeData(Asset asset, String address, String paymentId, String amount) {
-        this(asset, address, null, paymentId, null, amount, Security.NORMAL);
+        this(asset, address, null, description, amount, security);
    }

    public BarcodeData(Asset asset, String address, String paymentId, String description, String amount) {
-        this(asset, address, null, paymentId, description, amount, Security.NORMAL);
+        this(asset, address, null, description, amount, Security.NORMAL);
    }

-    public BarcodeData(Asset asset, String address, String addressName, String paymentId, String description, String amount, Security security) {
-        this(asset, address, addressName, null, paymentId, description, amount, security);
+    public BarcodeData(Asset asset, String address, String addressName, String description, String amount, Security security) {
+        this(asset, address, addressName, null, description, amount, security);
    }

-    public BarcodeData(Asset asset, String address, String addressName, String bip70, String paymentId, String description, String amount, Security security) {
+    public BarcodeData(Asset asset, String address, String addressName, String bip70, String description, String amount, Security security) {
        this.asset = asset;
        this.address = address;
        this.bip70 = bip70;
        this.addressName = addressName;
-        this.paymentId = paymentId;
        this.description = description;
        this.amount = amount;
        this.security = security;
@@ -110,11 +104,6 @@ public class BarcodeData {
        StringBuilder sb = new StringBuilder();
        sb.append(BarcodeData.XMR_SCHEME).append(address);
        boolean first = true;
-        if ((paymentId != null) && !paymentId.isEmpty()) {
-            sb.append("?");
-            first = false;
-            sb.append(BarcodeData.XMR_PAYMENTID).append('=').append(paymentId);
-        }
        if ((description != null) && !description.isEmpty()) {
            sb.append(first ? "?" : "&");
            first = false;
@@ -185,8 +174,11 @@ public class BarcodeData {
        String address = monero.getPath();

        String paymentId = parms.get(XMR_PAYMENTID);
-        // deal with empty payment_id created by non-spec-conforming apps
-        if ((paymentId != null) && paymentId.isEmpty()) paymentId = null;
+        // no support for payment ids!
+        if (paymentId != null) {
+            Timber.e("no support for payment ids!");
+            return null;
+        }

        String description = parms.get(XMR_DESCRIPTION);
        String amount = parms.get(XMR_AMOUNT);
@@ -198,10 +190,6 @@ public class BarcodeData {
                return null; // we have an amount but its not a number!
            }
        }
-        if ((paymentId != null) && !Wallet.isPaymentIdValid(paymentId)) {
-            Timber.d("paymentId invalid");
-            return null;
-        }

        if (!Wallet.isAddressValid(address)) {
            Timber.d("address invalid");
@@ -267,7 +255,7 @@ public class BarcodeData {
                Timber.d("[%s] is not http url", bip70);
                return null;
            }
-            return new BarcodeData(BarcodeData.Asset.BTC, null, null, bip70, null, description, null, Security.NORMAL);
+            return new BarcodeData(BarcodeData.Asset.BTC, null, null, bip70, description, null, Security.NORMAL);
        }
        if (!BitcoinAddressValidator.validate(address)) {
            Timber.d("BTC address (%s) invalid", address);
--- a/app/src/main/java/com/m2049r/xmrwallet/data/NodeInfo.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/data/NodeInfo.java
@@ -235,8 +235,10 @@ public class NodeInfo extends Node {
                        String rpcVersion = json.getString("jsonrpc");
                        if (!RPC_VERSION.equals(rpcVersion))
                            return false;
-                        final JSONObject header = json.getJSONObject(
-                                "result").getJSONObject("block_header");
+                        final JSONObject result = json.getJSONObject("result");
+                        if (!result.has("credits")) // introduced in monero v0.15.0
+                            return false;
+                        final JSONObject header = result.getJSONObject("block_header");
                        height = header.getLong("height");
                        timestamp = header.getLong("timestamp");
                        majorVersion = header.getInt("major_version");
--- a/app/src/main/java/com/m2049r/xmrwallet/data/TxData.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/data/TxData.java
@@ -29,19 +29,16 @@ public class TxData implements Parcelable {

    public TxData(TxData txData) {
        this.dstAddr = txData.dstAddr;
-        this.paymentId = txData.paymentId;
        this.amount = txData.amount;
        this.mixin = txData.mixin;
        this.priority = txData.priority;
    }

    public TxData(String dstAddr,
-                  String paymentId,
                  long amount,
                  int mixin,
                  PendingTransaction.Priority priority) {
        this.dstAddr = dstAddr;
-        this.paymentId = paymentId;
        this.amount = amount;
        this.mixin = mixin;
        this.priority = priority;
@@ -51,10 +48,6 @@ public class TxData implements Parcelable {
        return dstAddr;
    }

-    public String getPaymentId() {
-        return paymentId;
-    }
-
    public long getAmount() {
        return amount;
    }
@@ -71,10 +64,6 @@ public class TxData implements Parcelable {
        this.dstAddr = dstAddr;
    }

-    public void setPaymentId(String paymentId) {
-        this.paymentId = paymentId;
-    }
-
    public void setAmount(long amount) {
        this.amount = amount;
    }
@@ -96,7 +85,6 @@ public class TxData implements Parcelable {
    }

    private String dstAddr;
-    private String paymentId;
    private long amount;
    private int mixin;
    private PendingTransaction.Priority priority;
@@ -106,7 +94,6 @@ public class TxData implements Parcelable {
    @Override
    public void writeToParcel(Parcel out, int flags) {
        out.writeString(dstAddr);
-        out.writeString(paymentId);
        out.writeLong(amount);
        out.writeInt(mixin);
        out.writeInt(priority.getValue());
@@ -125,7 +112,6 @@ public class TxData implements Parcelable {

    protected TxData(Parcel in) {
        dstAddr = in.readString();
-        paymentId = in.readString();
        amount = in.readLong();
        mixin = in.readInt();
        priority = PendingTransaction.Priority.fromInteger(in.readInt());
@@ -142,14 +128,12 @@ public class TxData implements Parcelable {
        StringBuffer sb = new StringBuffer();
        sb.append("dstAddr:");
        sb.append(dstAddr);
-        sb.append(",paymentId:");
-        sb.append(paymentId);
        sb.append(",amount:");
        sb.append(amount);
        sb.append(",mixin:");
        sb.append(mixin);
        sb.append(",priority:");
-        sb.append(String.valueOf(priority));
+        sb.append(priority);
        return sb.toString();
    }
 }
--- a/app/src/main/java/com/m2049r/xmrwallet/dialog/ProgressDialog.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/dialog/ProgressDialog.java
@@ -28,6 +28,7 @@ import android.widget.TextView;

 import com.m2049r.xmrwallet.BuildConfig;
 import com.m2049r.xmrwallet.R;
+import com.m2049r.xmrwallet.util.Helper;

 import java.util.Locale;

@@ -76,8 +77,7 @@ public class ProgressDialog extends AlertDialog {

        super.onCreate(savedInstanceState);

-        // set FLAG_SECURE to prevent screenshots in Release Mode
-        if (!(BuildConfig.DEBUG && BuildConfig.FLAVOR_type.equals("alpha"))) {
+        if (Helper.preventScreenshot()) {
            getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);
        }
    }
--- a/app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendAddressWizardFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendAddressWizardFragment.java
@@ -31,7 +31,6 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.inputmethod.EditorInfo;
-import android.widget.Button;
 import android.widget.EditText;
 import android.widget.ImageButton;
 import android.widget.TextView;
@@ -86,12 +85,9 @@ public class SendAddressWizardFragment extends SendWizardFragment {

    private EditText etDummy;
    private TextInputLayout etAddress;
-    private TextInputLayout etPaymentId;
    private TextInputLayout etNotes;
-    private Button bPaymentId;
    private CardView cvScan;
    private View tvPaymentIdIntegrated;
-    private View llPaymentId;
    private TextView tvXmrTo;
    private View llXmrTo;
    private ImageButton bPasteAddress;
@@ -114,7 +110,6 @@ public class SendAddressWizardFragment extends SendWizardFragment {
        View view = inflater.inflate(R.layout.fragment_send_address, container, false);

        tvPaymentIdIntegrated = view.findViewById(R.id.tvPaymentIdIntegrated);
-        llPaymentId = view.findViewById(R.id.llPaymentId);
        llXmrTo = view.findViewById(R.id.llXmrTo);
        tvXmrTo = view.findViewById(R.id.tvXmrTo);
        tvXmrTo.setText(Html.fromHtml(getString(R.string.info_xmrto)));
@@ -140,28 +135,12 @@ public class SendAddressWizardFragment extends SendWizardFragment {
                        next = null;
                    } else {
                        // maybe a bip72 or 70 URI
-                        String bip70 = PaymentProtocolHelper.getBip70(enteredAddress);
+                        final String bip70 = PaymentProtocolHelper.getBip70(enteredAddress);
                        if (bip70 != null) {
                            // looks good - resolve through xmr.to
                            processBip70(bip70);
-                            next = null;
-                        } else if (checkAddress()) {
-                            if (llPaymentId.getVisibility() == View.VISIBLE) {
-                                next = etPaymentId;
-                            } else {
-                                next = etNotes;
-                            }
                        }
                    }
-                    if (next != null) {
-                        final View focus = next;
-                        etAddress.post(new Runnable() {
-                            @Override
-                            public void run() {
-                                focus.requestFocus();
-                            }
-                        });
-                    }
                }
            }
        });
@@ -174,8 +153,7 @@ public class SendAddressWizardFragment extends SendWizardFragment {
                etAddress.setError(null);
                if (isIntegratedAddress()) {
                    Timber.d("isIntegratedAddress");
-                    etPaymentId.getEditText().getText().clear();
-                    llPaymentId.setVisibility(View.INVISIBLE);
+                    etAddress.setError(getString(R.string.info_paymentid_integrated));
                    tvPaymentIdIntegrated.setVisibility(View.VISIBLE);
                    llXmrTo.setVisibility(View.INVISIBLE);
                    sendListener.setMode(SendFragment.Mode.XMR);
@@ -184,7 +162,6 @@ public class SendAddressWizardFragment extends SendWizardFragment {
                    setBtcMode();
                } else {
                    Timber.d("isStandardAddress or other");
-                    llPaymentId.setVisibility(View.VISIBLE);
                    tvPaymentIdIntegrated.setVisibility(View.INVISIBLE);
                    llXmrTo.setVisibility(View.INVISIBLE);
                    sendListener.setMode(SendFragment.Mode.XMR);
@@ -208,47 +185,21 @@ public class SendAddressWizardFragment extends SendWizardFragment {
                if (clip == null) return;
                // clean it up
                final String address = clip.replaceAll("[^0-9A-Z-a-z]", "");
-                if (Wallet.isAddressValid(address) || BitcoinAddressValidator.validate(address))
-                    etAddress.getEditText().setText(address);
-                else
-                    Toast.makeText(getActivity(), getString(R.string.send_address_invalid), Toast.LENGTH_SHORT).show();
-            }
-        });
-
-        etPaymentId = view.findViewById(R.id.etPaymentId);
-        etPaymentId.getEditText().setRawInputType(InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
-        etPaymentId.getEditText().setOnEditorActionListener(new TextView.OnEditorActionListener() {
-            public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
-                if ((event != null && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER) && (event.getAction() == KeyEvent.ACTION_DOWN))
-                        || (actionId == EditorInfo.IME_ACTION_NEXT)) {
-                    if (checkPaymentId()) {
-                        etNotes.requestFocus();
-                    }
-                    return true;
+                if (Wallet.isAddressValid(address) || BitcoinAddressValidator.validate(address)) {
+                    final EditText et = etAddress.getEditText();
+                    et.setText(address);
+                    et.setSelection(et.getText().length());
+                    etAddress.requestFocus();
+                } else {
+                    final String bip70 = PaymentProtocolHelper.getBip70(clip);
+                    if (bip70 != null) {
+                        final EditText et = etAddress.getEditText();
+                        et.setText(clip);
+                        et.setSelection(et.getText().length());
+                        processBip70(bip70);
+                    } else
+                        Toast.makeText(getActivity(), getString(R.string.send_address_invalid), Toast.LENGTH_SHORT).show();
                }
-                return false;
-            }
-        });
-        etPaymentId.getEditText().addTextChangedListener(new TextWatcher() {
-            @Override
-            public void afterTextChanged(Editable editable) {
-                etPaymentId.setError(null);
-            }
-
-            @Override
-            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
-            }
-
-            @Override
-            public void onTextChanged(CharSequence s, int start, int before, int count) {
-            }
-        });
-
-        bPaymentId = view.findViewById(R.id.bPaymentId);
-        bPaymentId.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                etPaymentId.getEditText().setText((Wallet.generatePaymentId()));
            }
        });

@@ -259,7 +210,6 @@ public class SendAddressWizardFragment extends SendWizardFragment {
                if ((event != null && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER) && (event.getAction() == KeyEvent.ACTION_DOWN))
                        || (actionId == EditorInfo.IME_ACTION_DONE)) {
                    etDummy.requestFocus();
-                    Helper.hideKeyboard(getActivity());
                    return true;
                }
                return false;
@@ -277,7 +227,6 @@ public class SendAddressWizardFragment extends SendWizardFragment {
        etDummy = view.findViewById(R.id.etDummy);
        etDummy.setRawInputType(InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
        etDummy.requestFocus();
-        Helper.hideKeyboard(getActivity());

        View tvNfc = view.findViewById(R.id.tvNfc);
        NfcManager manager = (NfcManager) getContext().getSystemService(Context.NFC_SERVICE);
@@ -289,8 +238,6 @@ public class SendAddressWizardFragment extends SendWizardFragment {

    private void setBtcMode() {
        Timber.d("setBtcMode");
-        etPaymentId.getEditText().getText().clear();
-        llPaymentId.setVisibility(View.INVISIBLE);
        tvPaymentIdIntegrated.setVisibility(View.INVISIBLE);
        llXmrTo.setVisibility(View.VISIBLE);
        sendListener.setMode(SendFragment.Mode.BTC);
@@ -345,7 +292,7 @@ public class SendAddressWizardFragment extends SendWizardFragment {

                final BarcodeData barcodeData =
                        new BarcodeData(BarcodeData.Asset.BTC, address, null,
-                                resolvedBip70, null, null, String.valueOf(amount),
+                                resolvedBip70, null, String.valueOf(amount),
                                BarcodeData.Security.BIP70);
                etNotes.post(new Runnable() {
                    @Override
@@ -406,22 +353,6 @@ public class SendAddressWizardFragment extends SendWizardFragment {
        return BitcoinAddressValidator.validate(address);
    }

-    private boolean checkPaymentId() {
-        String paymentId = etPaymentId.getEditText().getText().toString();
-        boolean ok = paymentId.isEmpty() || Wallet.isPaymentIdValid(paymentId);
-        if (!ok) {
-            etPaymentId.setError(getString(R.string.receive_paymentid_invalid));
-        } else {
-            if (!paymentId.isEmpty() && isIntegratedAddress()) {
-                ok = false;
-                etPaymentId.setError(getString(R.string.receive_integrated_paymentid_invalid));
-            } else {
-                etPaymentId.setError(null);
-            }
-        }
-        return ok;
-    }
-
    private void shakeAddress() {
        etAddress.startAnimation(Helper.getShakeAnimation(getContext()));
    }
@@ -444,11 +375,6 @@ public class SendAddressWizardFragment extends SendWizardFragment {
            return false;
        }

-        if (!checkPaymentId()) {
-            etPaymentId.startAnimation(Helper.getShakeAnimation(getContext()));
-            return false;
-        }
-
        if (sendListener != null) {
            TxData txData = sendListener.getTxData();
            if (txData instanceof TxDataBtc) {
@@ -462,10 +388,8 @@ public class SendAddressWizardFragment extends SendWizardFragment {
                    ((TxDataBtc) txData).setBip70(null);
                }
                txData.setDestinationAddress(null);
-                txData.setPaymentId("");
            } else {
                txData.setDestinationAddress(etAddress.getEditText().getText().toString());
-                txData.setPaymentId(etPaymentId.getEditText().getText().toString());
            }
            txData.setUserNotes(new UserNotes(etNotes.getEditText().getText().toString()));
            txData.setPriority(PendingTransaction.Priority.Priority_Default);
@@ -528,14 +452,6 @@ public class SendAddressWizardFragment extends SendWizardFragment {
                etAddress.setError(null);
            }

-            String scannedPaymentId = barcodeData.paymentId;
-            if (scannedPaymentId != null) {
-                etPaymentId.getEditText().setText(scannedPaymentId);
-                checkPaymentId();
-            } else {
-                etPaymentId.getEditText().getText().clear();
-                etPaymentId.setError(null);
-            }
            String scannedNotes = barcodeData.description;
            if (scannedNotes != null) {
                etNotes.getEditText().setText(scannedNotes);
@@ -551,7 +467,6 @@ public class SendAddressWizardFragment extends SendWizardFragment {
    public void onResumeFragment() {
        super.onResumeFragment();
        Timber.d("onResumeFragment()");
-        Helper.hideKeyboard(getActivity());
        etDummy.requestFocus();
    }

--- a/app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendAmountWizardFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendAmountWizardFragment.java
@@ -21,8 +21,6 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageButton;
-import android.widget.ImageView;
-import android.widget.LinearLayout;
 import android.widget.TextView;

 import com.m2049r.xmrwallet.R;
@@ -30,8 +28,7 @@ import com.m2049r.xmrwallet.data.BarcodeData;
 import com.m2049r.xmrwallet.data.TxData;
 import com.m2049r.xmrwallet.model.Wallet;
 import com.m2049r.xmrwallet.util.Helper;
-import com.m2049r.xmrwallet.widget.ExchangeTextView;
-import com.m2049r.xmrwallet.widget.NumberPadView;
+import com.m2049r.xmrwallet.widget.ExchangeEditText;

 import timber.log.Timber;

@@ -59,8 +56,7 @@ public class SendAmountWizardFragment extends SendWizardFragment {
    }

    private TextView tvFunds;
-    private ExchangeTextView evAmount;
-    private View llAmount;
+    private ExchangeEditText etAmount;
    private View rlSweep;
    private ImageButton ibSweep;

@@ -75,12 +71,9 @@ public class SendAmountWizardFragment extends SendWizardFragment {
        View view = inflater.inflate(R.layout.fragment_send_amount, container, false);

        tvFunds = view.findViewById(R.id.tvFunds);
-
-        evAmount = view.findViewById(R.id.evAmount);
-        ((NumberPadView) view.findViewById(R.id.numberPad)).setListener(evAmount);
-
+        etAmount = view.findViewById(R.id.etAmount);
        rlSweep = view.findViewById(R.id.rlSweep);
-        llAmount = view.findViewById(R.id.llAmount);
+
        view.findViewById(R.id.ivSweep).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
@@ -97,8 +90,7 @@ public class SendAmountWizardFragment extends SendWizardFragment {
            }
        });

-        Helper.hideKeyboard(getActivity());
-
+        etAmount.requestFocus();
        return view;
    }

@@ -107,11 +99,11 @@ public class SendAmountWizardFragment extends SendWizardFragment {
    private void sweepAll(boolean spendAllMode) {
        if (spendAllMode) {
            ibSweep.setVisibility(View.INVISIBLE);
-            llAmount.setVisibility(View.GONE);
+            etAmount.setVisibility(View.GONE);
            rlSweep.setVisibility(View.VISIBLE);
        } else {
            ibSweep.setVisibility(View.VISIBLE);
-            llAmount.setVisibility(View.VISIBLE);
+            etAmount.setVisibility(View.VISIBLE);
            rlSweep.setVisibility(View.GONE);
        }
        this.spendAllMode = spendAllMode;
@@ -124,12 +116,12 @@ public class SendAmountWizardFragment extends SendWizardFragment {
                sendListener.getTxData().setAmount(Wallet.SWEEP_ALL);
            }
        } else {
-            if (!evAmount.validate(maxFunds)) {
+            if (!etAmount.validate(maxFunds, 0)) {
                return false;
            }

            if (sendListener != null) {
-                String xmr = evAmount.getAmount();
+                String xmr = etAmount.getNativeAmount();
                if (xmr != null) {
                    sendListener.getTxData().setAmount(Wallet.getAmountFromString(xmr));
                } else {
@@ -146,7 +138,7 @@ public class SendAmountWizardFragment extends SendWizardFragment {
    public void onResumeFragment() {
        super.onResumeFragment();
        Timber.d("onResumeFragment()");
-        Helper.hideKeyboard(getActivity());
+        Helper.showKeyboard(getActivity());
        final long funds = getTotalFunds();
        maxFunds = 1.0 * funds / 1000000000000L;
        if (!sendListener.getActivityCallback().isStreetMode()) {
@@ -156,11 +148,11 @@ public class SendAmountWizardFragment extends SendWizardFragment {
            tvFunds.setText(getString(R.string.send_available,
                    getString(R.string.unknown_amount)));
        }
-        // getAmount is null if exchange is in progress
-        if ((evAmount.getAmount() != null) && evAmount.getAmount().isEmpty()) {
+        // getNativeAmount is null if exchange is in progress
+        if ((etAmount.getNativeAmount() != null) && etAmount.getNativeAmount().isEmpty()) {
            final BarcodeData data = sendListener.popBarcodeData();
            if ((data != null) && (data.amount != null)) {
-                evAmount.setAmount(data.amount);
+                etAmount.setAmount(data.amount);
            }
        }
    }
--- a/app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendBtcAmountWizardFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendBtcAmountWizardFragment.java
@@ -31,8 +31,8 @@ import com.m2049r.xmrwallet.data.TxDataBtc;
 import com.m2049r.xmrwallet.model.Wallet;
 import com.m2049r.xmrwallet.util.Helper;
 import com.m2049r.xmrwallet.util.OkHttpHelper;
-import com.m2049r.xmrwallet.widget.ExchangeBtcTextView;
-import com.m2049r.xmrwallet.widget.NumberPadView;
+import com.m2049r.xmrwallet.widget.ExchangeEditText;
+import com.m2049r.xmrwallet.widget.ExchangeOtherEditText;
 import com.m2049r.xmrwallet.widget.SendProgressView;
 import com.m2049r.xmrwallet.xmrto.XmrToError;
 import com.m2049r.xmrwallet.xmrto.XmrToException;
@@ -62,8 +62,7 @@ public class SendBtcAmountWizardFragment extends SendWizardFragment {
    }

    private TextView tvFunds;
-    private ExchangeBtcTextView evAmount;
-    private NumberPadView numberPad;
+    private ExchangeOtherEditText etAmount;

    private TextView tvXmrToParms;
    private SendProgressView evParams;
@@ -86,24 +85,20 @@ public class SendBtcAmountWizardFragment extends SendWizardFragment {

        tvXmrToParms = view.findViewById(R.id.tvXmrToParms);

-        evAmount = view.findViewById(R.id.evAmount);
-        numberPad = view.findViewById(R.id.numberPad);
-        numberPad.setListener(evAmount);
-
-        Helper.hideKeyboard(getActivity());
-
+        etAmount = view.findViewById(R.id.etAmount);
+        etAmount.requestFocus();
        return view;
    }


    @Override
    public boolean onValidateFields() {
-        if (!evAmount.validate(maxBtc, minBtc)) {
+        if (!etAmount.validate(maxBtc, minBtc)) {
            return false;
        }
        if (sendListener != null) {
            TxDataBtc txDataBtc = (TxDataBtc) sendListener.getTxData();
-            String btcString = evAmount.getAmount();
+            String btcString = etAmount.getNativeAmount();
            if (btcString != null) {
                try {
                    double btc = Double.parseDouble(btcString);
@@ -122,10 +117,12 @@ public class SendBtcAmountWizardFragment extends SendWizardFragment {

    private void setBip70Mode() {
        TxDataBtc txDataBtc = (TxDataBtc) sendListener.getTxData();
-        if (txDataBtc.getBip70() != null) {
-            numberPad.setVisibility(View.INVISIBLE);
+        if (txDataBtc.getBip70() == null) {
+            etAmount.setEditable(true);
+            Helper.showKeyboard(getActivity());
        } else {
-            numberPad.setVisibility(View.VISIBLE);
+            etAmount.setEditable(false);
+            Helper.hideKeyboard(getActivity());
        }
    }

@@ -141,7 +138,6 @@ public class SendBtcAmountWizardFragment extends SendWizardFragment {
    public void onResumeFragment() {
        super.onResumeFragment();
        Timber.d("onResumeFragment()");
-        Helper.hideKeyboard(getActivity());
        final long funds = getTotalFunds();
        if (!sendListener.getActivityCallback().isStreetMode()) {
            tvFunds.setText(getString(R.string.send_available,
@@ -153,7 +149,7 @@ public class SendBtcAmountWizardFragment extends SendWizardFragment {
        final BarcodeData data = sendListener.popBarcodeData();
        if (data != null) {
            if (data.amount != null) {
-                evAmount.setAmount(data.amount);
+                etAmount.setAmount(data.amount);
            }
        }
        setBip70Mode();
@@ -171,7 +167,7 @@ public class SendBtcAmountWizardFragment extends SendWizardFragment {
        getView().post(new Runnable() {
            @Override
            public void run() {
-                evAmount.setRate(1.0d / orderParameters.getPrice());
+                etAmount.setExchangeRate(1.0d / orderParameters.getPrice());
                NumberFormat df = NumberFormat.getInstance(Locale.US);
                df.setMaximumFractionDigits(6);
                String min = df.format(orderParameters.getLowerLimit());
@@ -211,7 +207,7 @@ public class SendBtcAmountWizardFragment extends SendWizardFragment {
    }

    private void processOrderParmsError(final Exception ex) {
-        evAmount.setRate(0);
+        etAmount.setExchangeRate(0);
        orderParameters = null;
        maxBtc = 0;
        minBtc = 0;
--- a/app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendBtcConfirmWizardFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendBtcConfirmWizardFragment.java
@@ -437,8 +437,8 @@ public class SendBtcConfirmWizardFragment extends SendWizardFragment implements
                return false;
            }
        });
-        // set FLAG_SECURE to prevent screenshots in Release Mode
-        if (!(BuildConfig.DEBUG && BuildConfig.FLAVOR_type.equals("alpha"))) {
+
+        if (Helper.preventScreenshot()) {
            passwordDialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);
        }

@@ -457,8 +457,7 @@ public class SendBtcConfirmWizardFragment extends SendWizardFragment implements
        }
        showProgress(3, getString(R.string.label_send_progress_create_tx));
        TxData txData = sendListener.getTxData();
-        txData.setDestinationAddress(xmrtoStatus.getXmrReceivingAddress());
-        txData.setPaymentId(xmrtoStatus.getXmrRequiredPaymentIdShort());
+        txData.setDestinationAddress(xmrtoStatus.getXmrReceivingSubaddress());
        txData.setAmount(Wallet.getAmountFromDouble(xmrtoStatus.getXmrAmountTotal()));
        getActivityCallback().onPrepareSend(xmrtoStatus.getUuid(), txData);
    }
--- a/app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendBtcSuccessWizardFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendBtcSuccessWizardFragment.java
@@ -138,12 +138,6 @@ public class SendBtcSuccessWizardFragment extends SendWizardFragment {

        btcData = (TxDataBtc) sendListener.getTxData();
        tvTxAddress.setText(btcData.getDestinationAddress());
-        String paymentId = btcData.getPaymentId();
-        if ((paymentId != null) && (!paymentId.isEmpty())) {
-            tvTxPaymentId.setText(btcData.getPaymentId());
-        } else {
-            tvTxPaymentId.setText("-");
-        }

        final PendingTx committedTx = sendListener.getCommittedTx();
        if (committedTx != null) {
--- a/app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendConfirmWizardFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendConfirmWizardFragment.java
@@ -70,7 +70,6 @@ public class SendConfirmWizardFragment extends SendWizardFragment implements Sen
    }

    private TextView tvTxAddress;
-    private TextView tvTxPaymentId;
    private TextView tvTxNotes;
    private TextView tvTxAmount;
    private TextView tvTxFee;
@@ -90,7 +89,6 @@ public class SendConfirmWizardFragment extends SendWizardFragment implements Sen
                R.layout.fragment_send_confirm, container, false);

        tvTxAddress = view.findViewById(R.id.tvTxAddress);
-        tvTxPaymentId = view.findViewById(R.id.tvTxPaymentId);
        tvTxNotes = view.findViewById(R.id.tvTxNotes);
        tvTxAmount = view.findViewById(R.id.tvTxAmount);
        tvTxFee = view.findViewById(R.id.tvTxFee);
@@ -192,12 +190,6 @@ public class SendConfirmWizardFragment extends SendWizardFragment implements Sen

        final TxData txData = sendListener.getTxData();
        tvTxAddress.setText(txData.getDestinationAddress());
-        String paymentId = txData.getPaymentId();
-        if ((paymentId != null) && (!paymentId.isEmpty())) {
-            tvTxPaymentId.setText(txData.getPaymentId());
-        } else {
-            tvTxPaymentId.setText("-");
-        }
        UserNotes notes = sendListener.getTxData().getUserNotes();
        if ((notes != null) && (!notes.note.isEmpty())) {
            tvTxNotes.setText(notes.note);
@@ -324,8 +316,8 @@ public class SendConfirmWizardFragment extends SendWizardFragment implements Sen
                return false;
            }
        });
-        // set FLAG_SECURE to prevent screenshots in Release Mode
-        if (!(BuildConfig.DEBUG && BuildConfig.FLAVOR_type.equals("alpha"))) {
+
+        if (Helper.preventScreenshot()) {
            passwordDialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);
        }

--- a/app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendSuccessWizardFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendSuccessWizardFragment.java
@@ -111,12 +111,6 @@ public class SendSuccessWizardFragment extends SendWizardFragment {

        final TxData txData = sendListener.getTxData();
        tvTxAddress.setText(txData.getDestinationAddress());
-        String paymentId = txData.getPaymentId();
-        if ((paymentId != null) && (!paymentId.isEmpty())) {
-            tvTxPaymentId.setText(txData.getPaymentId());
-        } else {
-            tvTxPaymentId.setText("-");
-        }

        final PendingTx committedTx = sendListener.getCommittedTx();
        if (committedTx != null) {
--- a/app/src/main/java/com/m2049r/xmrwallet/layout/NodeInfoAdapter.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/layout/NodeInfoAdapter.java
@@ -130,9 +130,9 @@ public class NodeInfoAdapter extends RecyclerView.Adapter<NodeInfoAdapter.ViewHo

        private void showStar() {
            if (nodeItem.isFavourite()) {
-                ibBookmark.setImageResource(R.drawable.ic_bookmark_24dp);
+                ibBookmark.setImageResource(R.drawable.ic_favorite_24dp);
            } else {
-                ibBookmark.setImageResource(R.drawable.ic_bookmark_border_24dp);
+                ibBookmark.setImageResource(R.drawable.ic_favorite_border_24dp);
            }
        }

--- a/app/src/main/java/com/m2049r/xmrwallet/ledger/Instruction.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/ledger/Instruction.java
@@ -134,6 +134,10 @@ public enum Instruction {
        return value;
    }

+    public byte getByteValue() {
+        return (byte) (value & 0xFF);
+    }
+
    private int value;

    Instruction(int value) {
--- a/app/src/main/java/com/m2049r/xmrwallet/ledger/Ledger.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/ledger/Ledger.java
@@ -27,9 +27,11 @@ import com.btchip.BTChipException;
 import com.btchip.comm.BTChipTransport;
 import com.btchip.comm.android.BTChipTransportAndroidHID;
 import com.m2049r.xmrwallet.BuildConfig;
+import com.m2049r.xmrwallet.model.WalletManager;
 import com.m2049r.xmrwallet.util.Helper;

 import java.io.IOException;
+import java.nio.charset.StandardCharsets;

 import timber.log.Timber;

@@ -40,9 +42,11 @@ public class Ledger {
    static public final int LOOKAHEAD_SUBADDRESSES = 20;
    static public final String SUBADDRESS_LOOKAHEAD = LOOKAHEAD_ACCOUNTS + ":" + LOOKAHEAD_SUBADDRESSES;

+    private static final byte PROTOCOL_VERSION = 0x02;
    public static final int SW_OK = 0x9000;
    public static final int SW_INS_NOT_SUPPORTED = 0x6D00;
    public static final int OK[] = {SW_OK};
+    public static final int MINIMUM_LEDGER_VERSION = (1 << 16) + (3 << 8) + (1); // 1.3.1

    public static UsbDevice findDevice(UsbManager usbManager) {
        if (!ENABLED) return null;
@@ -89,6 +93,21 @@ public class Ledger {
        }
    }

+    static public boolean check() {
+        if (Instance == null) return false;
+        byte[] moneroVersion = WalletManager.moneroVersion().getBytes(StandardCharsets.US_ASCII);
+
+        try {
+            byte[] resp = Instance.exchangeApduNoOpt(Instruction.INS_RESET, moneroVersion, OK);
+            int deviceVersion = (resp[0] << 16) + (resp[1] << 8) + (resp[2]);
+            if (deviceVersion < MINIMUM_LEDGER_VERSION)
+                return false;
+        } catch (BTChipException ex) { // comm error - probably wrong app started on device
+            return false;
+        }
+        return true;
+    }
+
    final private BTChipTransport transport;
    final private String name;
    private int lastSW = 0;
@@ -112,7 +131,7 @@ public class Ledger {
    synchronized private byte[] exchangeRaw(byte[] apdu) {
        if (transport == null)
            throw new IllegalStateException("No transport (probably closed previously)");
-        Timber.i("exchangeRaw %02x", apdu[1]);
+        Timber.d("exchangeRaw %02x", apdu[1]);
        Instruction ins = Instruction.fromByte(apdu[1]);
        if (listener != null) listener.onInstructionSend(ins, apdu);
        sniffOut(ins, apdu);
@@ -120,7 +139,6 @@ public class Ledger {
        if (listener != null) listener.onInstructionReceive(ins, data);
        sniffIn(data);
        return data;
-
    }

    private byte[] exchange(byte[] apdu) throws BTChipException {
@@ -148,68 +166,19 @@ public class Ledger {
        throw new BTChipException("Invalid status", lastSW);
    }

-    private byte[] exchangeApdu(byte cla, byte ins, byte p1, byte p2, byte[] data, int acceptedSW[]) throws BTChipException {
-        byte[] apdu = new byte[data.length + 5];
-        apdu[0] = cla;
-        apdu[1] = ins;
-        apdu[2] = p1;
-        apdu[3] = p2;
-        apdu[4] = (byte) (data.length);
-        System.arraycopy(data, 0, apdu, 5, data.length);
+    private byte[] exchangeApduNoOpt(Instruction instruction, byte[] data, int acceptedSW[])
+            throws BTChipException {
+        byte[] apdu = new byte[data.length + 6];
+        apdu[0] = PROTOCOL_VERSION;
+        apdu[1] = instruction.getByteValue();
+        apdu[2] = 0; // p1
+        apdu[3] = 0; // p2
+        apdu[4] = (byte) (data.length + 1); // +1 because the opt byte is part of the data
+        apdu[5] = 0; // opt
+        System.arraycopy(data, 0, apdu, 6, data.length);
        return exchangeCheck(apdu, acceptedSW);
    }

-    private byte[] exchangeApdu(byte cla, byte ins, byte p1, byte p2, int length, int acceptedSW[]) throws BTChipException {
-        byte[] apdu = new byte[5];
-        apdu[0] = cla;
-        apdu[1] = ins;
-        apdu[2] = p1;
-        apdu[3] = p2;
-        apdu[4] = (byte) (length);
-        return exchangeCheck(apdu, acceptedSW);
-    }
-
-    private byte[] exchangeApduSplit(byte cla, byte ins, byte p1, byte p2, byte[] data, int acceptedSW[]) throws BTChipException {
-        int offset = 0;
-        byte[] result = null;
-        while (offset < data.length) {
-            int blockLength = ((data.length - offset) > 255 ? 255 : data.length - offset);
-            byte[] apdu = new byte[blockLength + 5];
-            apdu[0] = cla;
-            apdu[1] = ins;
-            apdu[2] = p1;
-            apdu[3] = p2;
-            apdu[4] = (byte) (blockLength);
-            System.arraycopy(data, offset, apdu, 5, blockLength);
-            result = exchangeCheck(apdu, acceptedSW);
-            offset += blockLength;
-        }
-        return result;
-    }
-
-    private byte[] exchangeApduSplit2(byte cla, byte ins, byte p1, byte p2, byte[] data, byte[] data2, int acceptedSW[]) throws BTChipException {
-        int offset = 0;
-        byte[] result = null;
-        int maxBlockSize = 255 - data2.length;
-        while (offset < data.length) {
-            int blockLength = ((data.length - offset) > maxBlockSize ? maxBlockSize : data.length - offset);
-            boolean lastBlock = ((offset + blockLength) == data.length);
-            byte[] apdu = new byte[blockLength + 5 + (lastBlock ? data2.length : 0)];
-            apdu[0] = cla;
-            apdu[1] = ins;
-            apdu[2] = p1;
-            apdu[3] = p2;
-            apdu[4] = (byte) (blockLength + (lastBlock ? data2.length : 0));
-            System.arraycopy(data, offset, apdu, 5, blockLength);
-            if (lastBlock) {
-                System.arraycopy(data2, 0, apdu, 5 + blockLength, data2.length);
-            }
-            result = exchangeCheck(apdu, acceptedSW);
-            offset += blockLength;
-        }
-        return result;
-    }
-
    public interface Listener {
        void onInstructionSend(Instruction ins, byte[] apdu);

@@ -251,7 +220,6 @@ public class Ledger {
        if (ins == Instruction.INS_GET_KEY) {
            snoopKey = (apdu[2] == 2);
        }
-
    }

    private void sniffIn(byte[] data) {
--- a/app/src/main/java/com/m2049r/xmrwallet/model/Wallet.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/model/Wallet.java
@@ -248,7 +248,13 @@ public class Wallet {

    public native long getDaemonBlockChainTargetHeight();

-    public native boolean isSynchronized();
+    public native boolean isSynchronizedJ();
+
+    public boolean isSynchronized() {
+        final long daemonHeight = getDaemonBlockChainHeight();
+        if (daemonHeight == 0) return false;
+        return isSynchronizedJ() && (getBlockChainHeight() == daemonHeight);
+    }

    public static native String getDisplayAmount(long amount);

@@ -278,6 +284,8 @@ public class Wallet {

    public native void refreshAsync();

+    public native void rescanBlockchainAsync();
+
 //TODO virtual void setAutoRefreshInterval(int millis) = 0;
 //TODO virtual int autoRefreshInterval() const = 0;

@@ -298,22 +306,21 @@ public class Wallet {
    public PendingTransaction createTransaction(TxData txData) {
        return createTransaction(
                txData.getDestinationAddress(),
-                txData.getPaymentId(),
                txData.getAmount(),
                txData.getMixin(),
                txData.getPriority());
    }

-    public PendingTransaction createTransaction(String dst_addr, String payment_id,
+    public PendingTransaction createTransaction(String dst_addr,
                                                long amount, int mixin_count,
                                                PendingTransaction.Priority priority) {
        disposePendingTransaction();
        int _priority = priority.getValue();
        long txHandle =
                (amount == SWEEP_ALL ?
-                        createSweepTransaction(dst_addr, payment_id, mixin_count, _priority,
+                        createSweepTransaction(dst_addr, "", mixin_count, _priority,
                                accountIndex) :
-                        createTransactionJ(dst_addr, payment_id, amount, mixin_count, _priority,
+                        createTransactionJ(dst_addr, "", amount, mixin_count, _priority,
                                accountIndex));
        pendingTransaction = new PendingTransaction(txHandle);
        return pendingTransaction;
--- a/app/src/main/java/com/m2049r/xmrwallet/model/WalletManager.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/model/WalletManager.java
@@ -287,7 +287,8 @@ public class WalletManager {
            this.daemonAddress = null;
            this.daemonUsername = "";
            this.daemonPassword = "";
-            setDaemonAddressJ("");
+            //setDaemonAddressJ(""); // don't disconnect as monero code blocks for many seconds!
+            //TODO: need to do something about that later
        }
    }

@@ -353,4 +354,6 @@ public class WalletManager {
    static public native void logWarning(String category, String message);

    static public native void logError(String category, String message);
+
+    static public native String moneroVersion();
 }
--- a/app/src/main/java/com/m2049r/xmrwallet/service/WalletService.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/service/WalletService.java
@@ -290,7 +290,7 @@ public class WalletService extends Service {
                            showProgress(10);
                            Wallet.Status walletStatus = start(walletId, walletPw);
                            if (observer != null) observer.onWalletStarted(walletStatus);
-                            if (!walletStatus.isOk()) {
+                            if ((walletStatus == null) || !walletStatus.isOk()) {
                                errorState = true;
                                stop();
                            }
--- a/app/src/main/java/com/m2049r/xmrwallet/service/exchange/ecb/ExchangeApiImpl.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/service/exchange/ecb/ExchangeApiImpl.java
@@ -0,0 +1,215 @@
+/*
+ * Copyright (c) 2019 m2049r@monerujo.io
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// https://developer.android.com/training/basics/network-ops/xml
+
+package com.m2049r.xmrwallet.service.exchange.ecb;
+
+import android.support.annotation.NonNull;
+import android.support.annotation.VisibleForTesting;
+
+import com.m2049r.xmrwallet.service.exchange.api.ExchangeApi;
+import com.m2049r.xmrwallet.service.exchange.api.ExchangeCallback;
+import com.m2049r.xmrwallet.service.exchange.api.ExchangeException;
+import com.m2049r.xmrwallet.service.exchange.api.ExchangeRate;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+import org.xml.sax.SAXException;
+
+import java.io.IOException;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Locale;
+import java.util.Map;
+import java.util.TimeZone;
+
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+
+import okhttp3.Call;
+import okhttp3.HttpUrl;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+import timber.log.Timber;
+
+public class ExchangeApiImpl implements ExchangeApi {
+    @NonNull
+    private final OkHttpClient okHttpClient;
+    @NonNull
+    private final HttpUrl baseUrl;
+
+    //so we can inject the mockserver url
+    @VisibleForTesting
+    public ExchangeApiImpl(@NonNull final OkHttpClient okHttpClient, @NonNull final HttpUrl baseUrl) {
+        this.okHttpClient = okHttpClient;
+        this.baseUrl = baseUrl;
+    }
+
+    public ExchangeApiImpl(@NonNull final OkHttpClient okHttpClient) {
+        this(okHttpClient, HttpUrl.parse("https://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml"));
+        // data is daily and is refreshed around 16:00 CET every working day
+    }
+
+    public static boolean isSameDay(Calendar calendar, Calendar anotherCalendar) {
+        return (calendar.get(Calendar.YEAR) == anotherCalendar.get(Calendar.YEAR)) &&
+                (calendar.get(Calendar.DAY_OF_YEAR) == anotherCalendar.get(Calendar.DAY_OF_YEAR));
+    }
+
+    @Override
+    public void queryExchangeRate(@NonNull final String baseCurrency, @NonNull final String quoteCurrency,
+                                  @NonNull final ExchangeCallback callback) {
+        if (!baseCurrency.equals("EUR")) {
+            callback.onError(new IllegalArgumentException("Only EUR supported as base"));
+            return;
+        }
+
+        if (baseCurrency.equals(quoteCurrency)) {
+            callback.onSuccess(new ExchangeRateImpl(quoteCurrency, 1.0, new Date()));
+            return;
+        }
+
+        if (fetchDate != null) { // we have data
+            boolean useCache = false;
+            // figure out if we can use the cached values
+            // data is daily and is refreshed around 16:00 CET every working day
+            Calendar now = Calendar.getInstance(TimeZone.getTimeZone("CET"));
+
+            int fetchWeekday = fetchDate.get(Calendar.DAY_OF_WEEK);
+            int fetchDay = fetchDate.get(Calendar.DAY_OF_YEAR);
+            int fetchHour = fetchDate.get(Calendar.HOUR_OF_DAY);
+
+            int today = now.get(Calendar.DAY_OF_YEAR);
+            int nowHour = now.get(Calendar.HOUR_OF_DAY);
+
+            if (
+                // was it fetched today before 16:00? assume no new data iff now < 16:00 as well
+                    ((today == fetchDay) && (fetchHour < 16) && (nowHour < 16))
+                            // was it fetched after, 17:00? we can assume there is no newer data
+                            || ((today == fetchDay) && (fetchHour > 17))
+                            || ((today == fetchDay + 1) && (fetchHour > 17) && (nowHour < 16))
+                            // is the data itself from today? there can be no newer data
+                            || (fxDate.get(Calendar.DAY_OF_YEAR) == today)
+                            // was it fetched Sat/Sun? we can assume there is no newer data
+                            || ((fetchWeekday == Calendar.SATURDAY) || (fetchWeekday == Calendar.SUNDAY))
+            ) { // return cached rate
+                try {
+                    callback.onSuccess(getRate(quoteCurrency));
+                } catch (ExchangeException ex) {
+                    callback.onError(ex);
+                }
+                return;
+            }
+        }
+
+        final Request httpRequest = createHttpRequest(baseUrl);
+
+        okHttpClient.newCall(httpRequest).enqueue(new okhttp3.Callback() {
+            @Override
+            public void onFailure(final Call call, final IOException ex) {
+                callback.onError(ex);
+            }
+
+            @Override
+            public void onResponse(final Call call, final Response response) throws IOException {
+                if (response.isSuccessful()) {
+                    try {
+                        DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
+                        DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
+                        Document doc = dBuilder.parse(response.body().byteStream());
+                        doc.getDocumentElement().normalize();
+                        parse(doc);
+                        try {
+                            callback.onSuccess(getRate(quoteCurrency));
+                        } catch (ExchangeException ex) {
+                            callback.onError(ex);
+                        }
+                    } catch (ParserConfigurationException | SAXException ex) {
+                        Timber.w(ex);
+                        callback.onError(new ExchangeException(ex.getLocalizedMessage()));
+                    }
+                } else {
+                    callback.onError(new ExchangeException(response.code(), response.message()));
+                }
+            }
+        });
+    }
+
+    private Request createHttpRequest(final HttpUrl url) {
+        return new Request.Builder()
+                .url(url)
+                .get()
+                .build();
+    }
+
+    final private Map<String, Double> fxEntries = new HashMap<>();
+    private Calendar fxDate = null;
+    private Calendar fetchDate = null;
+
+    synchronized private ExchangeRate getRate(String currency) throws ExchangeException {
+        Timber.e("Getting %s", currency);
+        final Double rate = fxEntries.get(currency);
+        if (rate == null) throw new ExchangeException(404, "Currency not supported: " + currency);
+        return new ExchangeRateImpl(currency, rate, fxDate.getTime());
+    }
+
+    private final static SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd", Locale.US);
+
+    {
+        DATE_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
+    }
+
+    private void parse(final Document xmlRootDoc) {
+        final Map<String, Double> entries = new HashMap<>();
+        Calendar date = Calendar.getInstance(TimeZone.getTimeZone("CET"));
+        try {
+            NodeList cubes = xmlRootDoc.getElementsByTagName("Cube");
+            for (int i = 0; i < cubes.getLength(); i++) {
+                Node node = cubes.item(i);
+                if (node.getNodeType() == Node.ELEMENT_NODE) {
+                    Element cube = (Element) node;
+                    if (cube.hasAttribute("time")) { // a time Cube
+                        final Date time = DATE_FORMAT.parse(cube.getAttribute("time"));
+                        date.setTime(time);
+                    } else if (cube.hasAttribute("currency")
+                            && cube.hasAttribute("rate")) { // a rate Cube
+                        String currency = cube.getAttribute("currency");
+                        double rate = Double.valueOf(cube.getAttribute("rate"));
+                        entries.put(currency, rate);
+                    } // else an empty Cube - ignore
+                }
+            }
+        } catch (ParseException ex) {
+            Timber.d(ex);
+        }
+        synchronized (this) {
+            if (date != null) {
+                fetchDate = Calendar.getInstance(TimeZone.getTimeZone("CET"));
+                fxDate = date;
+                fxEntries.clear();
+                fxEntries.putAll(entries);
+            }
+            // else don't change what we have
+        }
+    }
+}
--- a/app/src/main/java/com/m2049r/xmrwallet/service/exchange/ecb/ExchangeRateImpl.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/service/exchange/ecb/ExchangeRateImpl.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2019 m2049r et al.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.m2049r.xmrwallet.service.exchange.ecb;
+
+import android.support.annotation.NonNull;
+
+import com.m2049r.xmrwallet.service.exchange.api.ExchangeRate;
+
+import java.util.Date;
+
+class ExchangeRateImpl implements ExchangeRate {
+    private final Date date;
+    private final String baseCurrency = "EUR";
+    private final String quoteCurrency;
+    private final double rate;
+
+    @Override
+    public String getServiceName() {
+        return "ecb.europa.eu";
+    }
+
+    @Override
+    public String getBaseCurrency() {
+        return baseCurrency;
+    }
+
+    @Override
+    public String getQuoteCurrency() {
+        return quoteCurrency;
+    }
+
+    @Override
+    public double getRate() {
+        return rate;
+    }
+
+    ExchangeRateImpl(@NonNull final String quoteCurrency, double rate, @NonNull final Date date) {
+        super();
+        this.quoteCurrency = quoteCurrency;
+        this.rate = rate;
+        this.date = date;
+    }
+}
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
m2049r	775dcf01ae	bump version	2020-06-01 20:14:03 +02:00
m2049r	aed4051d44	Merge branch 'TheFuzzStone-master'	2020-06-01 20:09:51 +02:00
m2049r	a586c0781a	renamed directory to match locale	2020-06-01 20:08:22 +02:00
m2049r	616d93cb18	replace '	2020-06-01 20:04:55 +02:00
v1docq47	73d9cb6d58	Update for Russian translation (#649 ) Update: - strings.xml Co-authored-by: m2049r <m2049r@monerujo.io>	2020-06-01 19:57:33 +02:00
m2049r	9846e8b5cf	fix progress bar (#665 )	2020-06-01 19:56:24 +02:00
m2049r	aa66a12dac	Merge branch 'master' into master	2020-06-01 13:43:16 +02:00
m2049r	65ce9b0889	Update blockheight (#664 ) * update through june	2020-06-01 10:04:09 +02:00
m2049r	291e311b8a	Enable rescan on wallet (from menu) (#663 ) * rescan	2020-06-01 10:03:36 +02:00
m2049r	41290f51fd	Upgrade to monero v0.16.0.0 (#662 ) * upgrade to monero core v0.16.0.0 * hearts for node favs	2020-06-01 10:02:22 +02:00
m2049r	a11c898e2c	bump version	2020-03-09 07:17:46 +01:00
m2049r	9c921183ab	catch NPE (#655 )	2020-03-08 22:29:02 +01:00
m2049r	b978396a38	fix versionCode	2020-03-08 20:46:23 +01:00
m2049r	c6aa04e986	update heights & fix date parsing bug (#654 )	2020-03-08 20:33:34 +01:00
m2049r	6c17b8bd87	update gradle	2020-02-29 10:43:13 +01:00
TheFuzzStone	835a35c6a8	Updating Ukranian language	2020-02-13 13:49:52 +02:00
m2049r	cac32f660c	v1.12.11 (monero v0.15.0.1)	2019-11-25 23:30:28 +01:00
m2049r	8e70004bf2	v1.12.10	2019-11-24 17:17:54 +01:00
m2049r	c3a466c392	remove payment id everywhere (#646 )	2019-11-24 17:17:25 +01:00
m2049r	e076c19e3e	v1.12.9	2019-11-21 10:42:45 +01:00
m2049r	35b717756d	Fix amount bugs (#645 ) * fix rounding error on send * fix check funds bug	2019-11-21 10:42:16 +01:00
m2049r	c14486306e	v1.12.8	2019-11-20 07:34:25 +01:00
m2049r	c2ef25c377	change error message to 16 for payment ids (#643 )	2019-11-20 07:33:29 +01:00
m2049r	b7164ef200	fix XMR missing in open wallet (#642 )	2019-11-20 07:33:07 +01:00
m2049r	f94a366d51	v1.12.7	2019-11-19 22:57:43 +01:00
m2049r	286a04b5ef	add XMR to receive spinners (again) (#640 )	2019-11-19 22:56:28 +01:00
m2049r	1209295a8c	v1.12.6	2019-11-18 12:01:49 +01:00
m2049r	037b019d4d	xmrto payment through subaddress (#639 ) * use subaddress for xmrto only * fix exchange rate	2019-11-18 12:00:39 +01:00
m2049r	7a1d788f2a	UI tweaks (#638 ) * fix amount entry field * password entry on own line * remove errors when typing; field spacing	2019-11-17 10:31:19 +01:00
m2049r	87d9a8cd95	use kraken for EURXMR exchange rate (#637 ) combine with ECB rates for other fiat conversions	2019-11-17 00:42:57 +01:00
m2049r	f637d7f617	update block heights (#636 )	2019-11-10 23:54:40 +01:00
m2049r	a4b9a7c6fb	fix spend amount & new version (#635 )	2019-11-10 15:23:33 +01:00
m2049r	9f01155cb7	v1.12.1	2019-11-10 12:14:52 +01:00
m2049r	08e8a48138	scan only for 0.15 nodes (#634 )	2019-11-10 12:13:06 +01:00
m2049r	551c3b9fb6	scan only for 0.15 nodes (#633 )	2019-11-10 12:11:01 +01:00
m2049r	2258cb7096	v1.12.0 (#632 )	2019-11-10 11:08:19 +01:00
m2049r	6d61841cf3	textfields are filled (#631 )	2019-11-10 11:06:34 +01:00
m2049r	c65508d288	upgrade to monero v0.15 (#630 )	2019-11-09 22:45:54 +01:00
m2049r	2c3f582672	paste bip70 (#621 )	2019-09-22 10:09:18 +02:00
m2049r	f46ba75771	update gradle version (#614 )	2019-08-16 19:07:12 +02:00
m2049r	0ce5f2b6ca	create ExchangeEditText & use without numpad (#613 )	2019-08-04 13:19:42 +02:00
m2049r	110057c294	bump version to 1.11.13	2019-07-14 13:18:27 +02:00
m2049r	7553d3c5f4	Merge pull request #611 from m2049r/fix_heightfix reduce restore height some more for new wallets	2019-07-14 12:53:24 +02:00
m2049r	317976b34a	decrease restore height on new wallet	2019-07-14 12:52:43 +02:00
m2049r	6ad423567f	Merge pull request #610 from m2049r/feature_showheight show restore height	2019-07-14 12:52:21 +02:00
m2049r	d497158856	show restore height	2019-07-14 12:35:00 +02:00
m2049r	f4cada5fa1	Merge pull request #608 from m2049r/feature_nanox Support for Nano X	2019-07-13 18:56:23 +02:00
m2049r	352f0ad09c	update height for 2019-07-01 (#609 )	2019-07-13 18:55:35 +02:00
m2049r	ff1a9c1570	verify monero app is running on nano	2019-07-13 18:44:56 +02:00
m2049r	fa811a39a2	accept Nano X over USB	2019-07-13 13:00:24 +02:00
m2049r	cf5018be33	kick 'Hintergrunddienst' (#607 )	2019-06-23 21:26:29 +02:00
m2049r	8ec027f9d4	bump version	2019-06-21 08:47:22 +02:00
m2049r	f28428e677	update june restore height (#606 )	2019-06-21 08:45:09 +02:00
m2049r	294084bec5	double size of node bookmark icon (#605 )	2019-06-21 08:17:08 +02:00
m2049r	4349907627	setNode blocks => call it async (#604 )	2019-06-18 08:49:51 +02:00
m2049r	f7cef24a83	fix NPE (#603 )	2019-06-18 08:48:28 +02:00
m2049r	2774f99b15	bump version v1.11.10	2019-06-16 23:39:24 +02:00
m2049r	bc630fc445	Refactor secureflag (#600 ) * one place to decide if screenshots enabled * allow screenshots on alpha or debug	2019-06-16 23:28:52 +02:00
m2049r	895cf16d33	don't setDaemon when null (#601 )	2019-06-16 23:28:34 +02:00