Magisk/app/src/main/java/com/topjohnwu/magisk/core/utils/BiometricHelper.kt

60 lines
1.8 KiB
Kotlin

package com.topjohnwu.magisk.core.utils
import androidx.biometric.BiometricManager
import androidx.biometric.BiometricPrompt
import androidx.core.content.ContextCompat
import androidx.fragment.app.FragmentActivity
import com.topjohnwu.magisk.R
import com.topjohnwu.magisk.core.Config
import com.topjohnwu.magisk.core.di.AppContext
object BiometricHelper {
private val mgr by lazy { BiometricManager.from(AppContext) }
val isSupported get() = when (mgr.canAuthenticate()) {
BiometricManager.BIOMETRIC_SUCCESS -> true
else -> false
}
val isEnabled: Boolean get() {
val enabled = Config.suBiometric
if (enabled && !isSupported) {
Config.suBiometric = false
return false
}
return enabled
}
fun authenticate(
activity: FragmentActivity,
onError: () -> Unit = {},
onSuccess: () -> Unit): BiometricPrompt {
val prompt = BiometricPrompt(activity,
ContextCompat.getMainExecutor(activity),
object : BiometricPrompt.AuthenticationCallback() {
override fun onAuthenticationError(errorCode: Int, errString: CharSequence) {
onError()
}
override fun onAuthenticationFailed() {
onError()
}
override fun onAuthenticationSucceeded(result: BiometricPrompt.AuthenticationResult) {
onSuccess()
}
}
)
val info = BiometricPrompt.PromptInfo.Builder()
.setConfirmationRequired(true)
.setDeviceCredentialAllowed(false)
.setTitle(activity.getString(R.string.authenticate))
.setNegativeButtonText(activity.getString(android.R.string.cancel))
.build()
prompt.authenticate(info)
return prompt
}
}