Android fixing record over android11

wrappers/android/examples/playback/src/main/java/com/intel/realsense/playback/MainActivity.java

@@ -96,7 +96,7 @@ protected void onActivityResult(int requestCode, int resultCode, Intent data) {
     Thread mStreaming = new Thread() {
         @Override
         public void run() {
-            String filePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/" + mUri.getPath().split(":")[1];
+            String filePath = getExternalFilesDir(null).getAbsolutePath() + "/" + mUri.getPath().split(":")[1];
             try(Colorizer colorizer = new Colorizer()) {
                 try (Config config = new Config()) {
                     config.enableDeviceFromFile(filePath);

wrappers/android/examples/recording/src/main/java/com/intel/realsense/recording/MainActivity.java

@@ -127,7 +127,7 @@ protected void onPause() {
     }
 
     private String getFilePath(){
-        File folder = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + "rs_bags");
+        File folder = new File(getExternalFilesDir(null).getAbsolutePath() + File.separator + "rs_bags");
         folder.mkdir();
         SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss");
         String currentDateAndTime = sdf.format(new Date());

wrappers/android/tools/camera/src/main/java/com/intel/realsense/camera/FileBrowserActivity.java

@@ -29,7 +29,7 @@ protected void onResume() {
 
         TextView message = findViewById(R.id.list_view_title);
 
-        File folder = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + mFolder);
+        File folder = new File(getExternalFilesDir(null).getAbsolutePath() + File.separator + mFolder);
         if(!folder.exists()) {
             message.setText("No RealSense files found");
             return;

wrappers/android/tools/camera/src/main/java/com/intel/realsense/camera/FileUtilities.java

@@ -1,6 +1,6 @@
 package com.intel.realsense.camera;
 
-import android.os.Environment;
+import android.content.Context;
 import android.os.Handler;
 import android.util.Log;
 
@@ -22,17 +22,13 @@ public static final void runOnUiThread(Runnable action) {
         }
     }
 
-    public static boolean isExternalStorageWritable() {
-        return Environment.getExternalStorageState() == Environment.MEDIA_MOUNTED;
+    public static String getExternalStorageDir(Context context) {
+        return context.getExternalFilesDir(null).getAbsolutePath();
     }
 
-    public static String getExternalStorageDir() {
-        return Environment.getExternalStorageDirectory().getAbsolutePath();
-    }
-
-    public static void saveFileToExternalDir(final String fileName, byte[] data) {
+    public static void saveFileToExternalDir(Context context, final String fileName, byte[] data) {
         try {
-            File file = new File(getExternalStorageDir() + File.separator + fileName);
+            File file = new File(context.getExternalFilesDir(null) + File.separator + fileName);
             FileOutputStream fos = new FileOutputStream(file);
             fos.write(data);
             Log.i(TAG, "saveFileToExternalDir: file " + fileName + " saved successfully");

wrappers/android/tools/camera/src/main/java/com/intel/realsense/camera/RecordingActivity.java

@@ -4,7 +4,6 @@
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
-import android.os.Environment;
 import com.google.android.material.floatingactionbutton.FloatingActionButton;
 import androidx.core.app.ActivityCompat;
 import androidx.core.content.ContextCompat;
@@ -102,10 +101,10 @@ protected void onPause() {
     }
 
     private String getFilePath(){
-        File rsFolder = new File(Environment.getExternalStorageDirectory().getAbsolutePath() +
+        File rsFolder = new File(getExternalFilesDir(null).getAbsolutePath() +
                 File.separator + getString(R.string.realsense_folder));
         rsFolder.mkdir();
-        File folder = new File(Environment.getExternalStorageDirectory().getAbsolutePath() +
+        File folder = new File(getExternalFilesDir(null).getAbsolutePath() +
                 File.separator + getString(R.string.realsense_folder) + File.separator + "video");
         folder.mkdir();
         SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss");

wrappers/android/tools/camera/src/main/java/com/intel/realsense/camera/SettingsActivity.java

@@ -66,7 +66,7 @@ protected void onCreate(Bundle savedInstanceState) {
         mContext = this;
 
         // Advanced features are enabled if xml files exists in the device.
-        String advancedFeaturesPath = FileUtilities.getExternalStorageDir() +
+        String advancedFeaturesPath = FileUtilities.getExternalStorageDir(mContext) +
                 File.separator +
                 getString(R.string.realsense_folder) +
                 File.separator +
@@ -205,7 +205,7 @@ public void onItemClick(AdapterView<?> parent, final View view,
                         break;
                     }
                     case INDEX_CREATE_FLASH_BACKUP: {
-                        new FlashBackupTask(device).execute();
+                        new FlashBackupTask(device, mContext).execute();
                         break;
                     }
                     default:
@@ -220,15 +220,17 @@ private class FlashBackupTask extends AsyncTask<Void, Void, Void> {
         private ProgressDialog mProgressDialog;
         private Device mDevice;
         String mBackupFileName = "fwdump.bin";
+        private Context mContext;
 
-        public FlashBackupTask(Device mDevice) {
+        public FlashBackupTask(Device mDevice, Context context) {
             this.mDevice = mDevice;
+            this.mContext = context;
         }
 
         @Override
         protected Void doInBackground(Void... voids) {
             try(final Updatable upd = mDevice.as(Extension.UPDATABLE)){
-                FileUtilities.saveFileToExternalDir(mBackupFileName, upd.createFlashBackup());
+                FileUtilities.saveFileToExternalDir(mContext, mBackupFileName, upd.createFlashBackup());
                 return null;
             }
         }
@@ -255,7 +257,7 @@ protected void onPostExecute(Void aVoid) {
                 public void run() {
                     new AlertDialog.Builder(mContext)
                             .setTitle("Firmware Backup Success")
-                            .setMessage("Saved into: " + FileUtilities.getExternalStorageDir() + File.separator + mBackupFileName)
+                            .setMessage("Saved into: " + FileUtilities.getExternalStorageDir(mContext) + File.separator + mBackupFileName)
                             .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
                                 @Override
                                 public void onClick(DialogInterface dialog, int which) {

wrappers/android/tools/camera/src/main/java/com/intel/realsense/camera/Streamer.java

@@ -144,7 +144,7 @@ public synchronized void start() throws Exception {
             mHandler.post(mStreaming);
             Log.d(TAG, "streaming started successfully");
         } catch (Exception e) {
-            Log.e(TAG, "failed to start streaming");
+            Log.e(TAG, "failed to start streaming: " + e.getMessage());
             mPipeline.close();
             throw e;
         }