chore: Release v21.1.0-dev.3 [skip ci]

# [21.1.0-dev.3](https://github.com/ReVanced/revanced-patcher/compare/v21.1.0-dev.2...v21.1.0-dev.3) (2025-06-20)

### Bug Fixes

* Encode XML files as UTF-8 to fix compilation of resources ([#339](https://github.com/ReVanced/revanced-patcher/issues/339)) ([4f2ef3c](4f2ef3c47c))

CHANGELOG.md

@@ -1,3 +1,10 @@
+# [21.1.0-dev.3](https://github.com/ReVanced/revanced-patcher/compare/v21.1.0-dev.2...v21.1.0-dev.3) (2025-06-20)
+
+
+### Bug Fixes
+
+* Encode XML files as UTF-8 to fix compilation of resources ([#339](https://github.com/ReVanced/revanced-patcher/issues/339)) ([4f2ef3c](https://github.com/ReVanced/revanced-patcher/commit/4f2ef3c47cea76a26c464cfb45d4bb57fe7198b5))
+
 # [21.1.0-dev.2](https://github.com/ReVanced/revanced-patcher/compare/v21.1.0-dev.1...v21.1.0-dev.2) (2025-06-20)
 
 

gradle.properties

@@ -1,3 +1,3 @@
 org.gradle.parallel = true
 org.gradle.caching = true
-version = 21.1.0-dev.2
+version = 21.1.0-dev.3

src/main/kotlin/app/revanced/patcher/util/Document.kt

@@ -4,7 +4,9 @@ import org.w3c.dom.Document
 import java.io.Closeable
 import java.io.File
 import java.io.InputStream
+import java.io.StringWriter
 import javax.xml.parsers.DocumentBuilderFactory
+import javax.xml.transform.OutputKeys
 import javax.xml.transform.TransformerFactory
 import javax.xml.transform.dom.DOMSource
 import javax.xml.transform.stream.StreamResult
@@ -35,14 +37,19 @@ class Document internal constructor(
             }
 
             it.outputStream().buffered().use { stream ->
-                TransformerFactory.newInstance()
-                    .newTransformer()
-                    .transform(DOMSource(this), StreamResult(stream))
+                val transformer = TransformerFactory.newInstance().newTransformer()
+                // Set to UTF-16 but encode as UTF-8 to prevent surrogate pairs from being escaped to broken numeric character references.
+                if (isAndroid) {
+                    transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-16")
+                    transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes")
+                }
+                transformer.transform(DOMSource(this), StreamResult(stream))
             }
         }
     }
 
     private companion object {
         private val readerCount = mutableMapOf<File, Int>()
+        private val isAndroid = System.getProperty("java.runtime.name").equals("Android Runtime")
     }
 }