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@ -1,40 +1,25 @@
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package app.alextran.immich
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import android.content.ContentResolver
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import android.content.ContentUris
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import android.content.ContentValues
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import android.content.Context
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import android.content.Intent
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import android.net.Uri
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import android.os.Build
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import android.os.Bundle
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import android.os.Environment
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import android.provider.MediaStore
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import android.provider.Settings
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import android.util.Log
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import io.flutter.embedding.engine.plugins.FlutterPlugin
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import io.flutter.embedding.engine.plugins.activity.ActivityAware
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import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding
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import io.flutter.plugin.common.BinaryMessenger
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import io.flutter.plugin.common.MethodCall
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import io.flutter.plugin.common.MethodChannel
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import io.flutter.plugin.common.MethodChannel.Result
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import io.flutter.plugin.common.PluginRegistry
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import java.security.MessageDigest
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import java.io.FileInputStream
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import kotlinx.coroutines.*
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/**
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* Android plugin for Dart `BackgroundService` and file trash operations
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* Android plugin for Dart `BackgroundService`
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*
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* Receives messages/method calls from the foreground Dart side to manage
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* the background service, e.g. start (enqueue), stop (cancel)
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*/
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class BackgroundServicePlugin : FlutterPlugin, MethodChannel.MethodCallHandler, ActivityAware, PluginRegistry.ActivityResultListener {
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class BackgroundServicePlugin : FlutterPlugin, MethodChannel.MethodCallHandler {
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private var methodChannel: MethodChannel? = null
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private var fileTrashChannel: MethodChannel? = null
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private var context: Context? = null
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private var pendingResult: Result? = null
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private val PERMISSION_REQUEST_CODE = 1001
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private var activityBinding: ActivityPluginBinding? = null
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override fun onAttachedToEngine(binding: FlutterPlugin.FlutterPluginBinding) {
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onAttachedToEngine(binding.applicationContext, binding.binaryMessenger)
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@ -44,10 +29,6 @@ class BackgroundServicePlugin : FlutterPlugin, MethodChannel.MethodCallHandler,
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context = ctx
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methodChannel = MethodChannel(messenger, "immich/foregroundChannel")
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methodChannel?.setMethodCallHandler(this)
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// Add file trash channel
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fileTrashChannel = MethodChannel(messenger, "file_trash")
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fileTrashChannel?.setMethodCallHandler(this)
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}
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override fun onDetachedFromEngine(binding: FlutterPlugin.FlutterPluginBinding) {
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@ -57,14 +38,11 @@ class BackgroundServicePlugin : FlutterPlugin, MethodChannel.MethodCallHandler,
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private fun onDetachedFromEngine() {
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methodChannel?.setMethodCallHandler(null)
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methodChannel = null
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fileTrashChannel?.setMethodCallHandler(null)
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fileTrashChannel = null
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}
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override fun onMethodCall(call: MethodCall, result: Result) {
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override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) {
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val ctx = context!!
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when (call.method) {
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// Existing BackgroundService methods
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"enable" -> {
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val args = call.arguments<ArrayList<*>>()!!
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ctx.getSharedPreferences(BackupWorker.SHARED_PREF_NAME, Context.MODE_PRIVATE)
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@ -136,180 +114,10 @@ class BackgroundServicePlugin : FlutterPlugin, MethodChannel.MethodCallHandler,
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}
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}
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// File Trash methods moved from MainActivity
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"moveToTrash" -> {
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val fileName = call.argument<String>("fileName")
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if (fileName != null) {
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if (hasManageStoragePermission()) {
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val success = moveToTrash(fileName)
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result.success(success)
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} else {
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result.error("PERMISSION_DENIED", "Storage permission required", null)
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}
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} else {
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result.error("INVALID_NAME", "The file name is not specified.", null)
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}
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}
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"restoreFromTrash" -> {
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val fileName = call.argument<String>("fileName")
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if (fileName != null) {
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if (hasManageStoragePermission()) {
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val success = untrashImage(fileName)
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result.success(success)
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} else {
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result.error("PERMISSION_DENIED", "Storage permission required", null)
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}
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} else {
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result.error("INVALID_NAME", "The file name is not specified.", null)
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}
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}
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"requestManageStoragePermission" -> {
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if (!hasManageStoragePermission()) {
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requestManageStoragePermission(result)
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} else {
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Log.e("Manage storage permission", "Permission already granted")
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result.success(true)
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}
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}
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else -> result.notImplemented()
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}
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}
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// File Trash methods moved from MainActivity
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private fun hasManageStoragePermission(): Boolean {
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return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
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Environment.isExternalStorageManager()
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} else {
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true
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}
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}
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private fun requestManageStoragePermission(result: Result) {
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
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pendingResult = result // Store the result callback
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val activity = activityBinding?.activity ?: return
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val intent = Intent(Settings.ACTION_MANAGE_APP_ALL_FILES_ACCESS_PERMISSION)
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intent.data = Uri.parse("package:${activity.packageName}")
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activity.startActivityForResult(intent, PERMISSION_REQUEST_CODE)
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} else {
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result.success(true)
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}
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}
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private fun moveToTrash(fileName: String): Boolean {
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val contentResolver = context?.contentResolver ?: return false
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val uri = getFileUri(fileName)
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Log.e("FILE_URI", uri.toString())
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return uri?.let { moveToTrash(it) } ?: false
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}
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private fun moveToTrash(contentUri: Uri): Boolean {
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val contentResolver = context?.contentResolver ?: return false
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return try {
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val values = ContentValues().apply {
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put(MediaStore.MediaColumns.IS_TRASHED, 1) // Move to trash
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}
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val updated = contentResolver.update(contentUri, values, null, null)
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updated > 0
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} catch (e: Exception) {
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Log.e("TrashError", "Error moving to trash", e)
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false
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}
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}
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private fun getFileUri(fileName: String): Uri? {
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val contentResolver = context?.contentResolver ?: return null
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val contentUri = MediaStore.Files.getContentUri("external")
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val projection = arrayOf(MediaStore.Images.Media._ID)
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val selection = "${MediaStore.Images.Media.DISPLAY_NAME} = ?"
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val selectionArgs = arrayOf(fileName)
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var fileUri: Uri? = null
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contentResolver.query(contentUri, projection, selection, selectionArgs, null)?.use { cursor ->
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if (cursor.moveToFirst()) {
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val id = cursor.getLong(cursor.getColumnIndexOrThrow(MediaStore.Images.Media._ID))
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fileUri = ContentUris.withAppendedId(contentUri, id)
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}
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}
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return fileUri
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}
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private fun untrashImage(name: String): Boolean {
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val contentResolver = context?.contentResolver ?: return false
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val uri = getTrashedFileUri(contentResolver, name)
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Log.e("FILE_URI", uri.toString())
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return uri?.let { untrashImage(it) } ?: false
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}
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private fun untrashImage(contentUri: Uri): Boolean {
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val contentResolver = context?.contentResolver ?: return false
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return try {
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val values = ContentValues().apply {
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put(MediaStore.MediaColumns.IS_TRASHED, 0) // Restore file
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}
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val updated = contentResolver.update(contentUri, values, null, null)
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updated > 0
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} catch (e: Exception) {
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Log.e("TrashError", "Error restoring file", e)
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false
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}
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}
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private fun getTrashedFileUri(contentResolver: ContentResolver, fileName: String): Uri? {
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val contentUri = MediaStore.Files.getContentUri(MediaStore.VOLUME_EXTERNAL)
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val projection = arrayOf(MediaStore.Files.FileColumns._ID)
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val queryArgs = Bundle().apply {
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putString(ContentResolver.QUERY_ARG_SQL_SELECTION, "${MediaStore.Files.FileColumns.DISPLAY_NAME} = ?")
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putStringArray(ContentResolver.QUERY_ARG_SQL_SELECTION_ARGS, arrayOf(fileName))
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putInt(MediaStore.QUERY_ARG_MATCH_TRASHED, MediaStore.MATCH_ONLY)
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}
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contentResolver.query(contentUri, projection, queryArgs, null)?.use { cursor ->
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if (cursor.moveToFirst()) {
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val id = cursor.getLong(cursor.getColumnIndexOrThrow(MediaStore.Files.FileColumns._ID))
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return ContentUris.withAppendedId(contentUri, id)
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}
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}
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return null
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}
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// ActivityAware implementation
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override fun onAttachedToActivity(binding: ActivityPluginBinding) {
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activityBinding = binding
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binding.addActivityResultListener(this)
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}
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override fun onDetachedFromActivityForConfigChanges() {
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activityBinding?.removeActivityResultListener(this)
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activityBinding = null
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}
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override fun onReattachedToActivityForConfigChanges(binding: ActivityPluginBinding) {
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activityBinding = binding
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binding.addActivityResultListener(this)
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}
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override fun onDetachedFromActivity() {
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activityBinding?.removeActivityResultListener(this)
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activityBinding = null
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}
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// ActivityResultListener implementation
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override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?): Boolean {
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if (requestCode == PERMISSION_REQUEST_CODE) {
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val granted = hasManageStoragePermission()
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pendingResult?.success(granted)
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pendingResult = null
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return true
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}
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return false
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}
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}
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private const val TAG = "BackgroundServicePlugin"
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private const val BUFFER_SIZE = 2 * 1024 * 1024
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private const val BUFFER_SIZE = 2 * 1024 * 1024;
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Alex
GitHub