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Update FontsModule.kt

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OTKUSteyler 2026-09-02 16:17:06 +02:00 • committed by GitHub
parent 6e7f5302e3
commit 9a620545b4
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1 changed files with 71 additions and 15 deletions
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86
app/src/main/kotlin/ShiggyXposed/xposed/xposed/modules/appearance/FontsModule.kt
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@ -7,6 +7,7 @@ import android.graphics.fonts.Font
import android.graphics.fonts.FontFamily
import android.os.Build
import de.robv.android.xposed.XC_MethodReplacement
import de.robv.android.xposed.XposedBridge
import de.robv.android.xposed.XposedHelpers
import de.robv.android.xposed.callbacks.XC_LoadPackage
import GoonXposed.xposed.Constants
@ -51,21 +52,29 @@ object FontsModule : Module() {
}
override fun onLoad(packageParam: XC_LoadPackage.LoadPackageParam) = with(packageParam) {
XposedHelpers.findAndHookMethod(
"com.facebook.react.common.assets.ReactFontManager\$Companion",
classLoader,
"createAssetTypeface",
String::class.java,
Int::class.java,
"android.content.res.AssetManager",
object : XC_MethodReplacement() {
override fun replaceHookedMethod(param: MethodHookParam): Typeface? {
val fontFamilyName: String = param.args[0].toString()
val style: Int = param.args[1] as Int
val assetManager: AssetManager = param.args[2] as AssetManager
return createAssetTypeface(fontFamilyName, style, assetManager)
}
})
try {
XposedHelpers.findAndHookMethod(
"com.facebook.react.common.assets.ReactFontManager\$Companion",
classLoader,
"createAssetTypeface",
String::class.java,
Int::class.java,
"android.content.res.AssetManager",
object : XC_MethodReplacement() {
override fun replaceHookedMethod(param: MethodHookParam): Typeface? {
val fontFamilyName: String = param.args[0].toString()
val style: Int = param.args[1] as Int
val assetManager: AssetManager = param.args[2] as AssetManager
return createAssetTypeface(fontFamilyName, style, assetManager)
}
})
Log.i("Font hook attached successfully (exact signature match)")
} catch (e: NoSuchMethodError) {
Log.e("Font hook FAILED to attach — method signature mismatch, trying fallback", e)
hookByMethodNameFallback(classLoader)
} catch (e: Throwable) {
Log.e("Font hook FAILED to attach — unexpected error", e)
}
val fontDefFile = File(appInfo.dataDir, "${Constants.FILES_DIR}/fonts.json").apply { asFile() }
if (!fontDefFile.exists()) return@with
@ -118,6 +127,53 @@ object FontsModule : Module() {
}
}
/**
* Fallback hook used when the exact-signature hook fails to attach, which usually
* means ReactFontManager$Companion.createAssetTypeface's signature changed in this
* RN version. Logs the real parameter types found so the exact hook above can be
* corrected, and attempts a best-effort reflective hook in the meantime.
*/
private fun hookByMethodNameFallback(classLoader: ClassLoader) {
try {
val clazz = XposedHelpers.findClass(
"com.facebook.react.common.assets.ReactFontManager\$Companion",
classLoader
)
val candidates = clazz.declaredMethods.filter { it.name == "createAssetTypeface" }
Log.i(
"Found ${candidates.size} candidate method(s) named createAssetTypeface: " +
candidates.joinToString {
it.parameterTypes.joinToString(prefix = "(", postfix = ")") { t -> t.simpleName }
}
)
if (candidates.isEmpty()) {
Log.e("No method named createAssetTypeface found on ReactFontManager\$Companion — it may have been renamed or moved to a different class entirely")
return
}
candidates.forEach { method ->
XposedBridge.hookMethod(method, object : XC_MethodReplacement() {
override fun replaceHookedMethod(param: MethodHookParam): Any? {
Log.i(
"Fallback hook fired with args: " +
param.args.joinToString { it?.javaClass?.simpleName ?: "null" }
)
val fontFamilyName = param.args.filterIsInstance<String>().firstOrNull()
?: return param.result
val style = param.args.filterIsInstance<Int>().firstOrNull() ?: 0
val assetManager = param.args.filterIsInstance<AssetManager>().firstOrNull()
?: return param.result
return createAssetTypeface(fontFamilyName, style, assetManager)
}
})
}
Log.i("Fallback font hook(s) attached")
} catch (e: Throwable) {
Log.e("Fallback font hook also failed — method may have been renamed/moved entirely", e)
}
}
private fun createAssetTypefaceWithFallbacks(
fontFamilyNames: Array<String>, style: Int, assetManager: AssetManager
): Typeface? {