Bug Fix: Tflite files are not uploading in Model Management on Android Devices

android/robot/src/main/AndroidManifest.xml

@@ -69,17 +69,6 @@
 
         </activity>
 
-        <activity
-            android:name=".modelManagement.BackHandlingFilePickerActivity"
-            android:label="@string/app_name"
-            android:theme="@style/FilePickerTheme"
-            android:exported="true">
-            <intent-filter>
-                <action android:name="android.intent.action.GET_CONTENT" />
-                <category android:name="android.intent.category.DEFAULT" />
-            </intent-filter>
-        </activity>
-
         <service
             android:name=".logging.SensorService"
             android:enabled="true"

android/robot/src/main/java/org/openbot/modelManagement/ModelManagementFragment.java

@@ -1,13 +1,16 @@
 package org.openbot.modelManagement;
 
 import android.app.Activity;
+import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
+import android.database.Cursor;
 import android.net.ConnectivityManager;
 import android.net.NetworkInfo;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Environment;
+import android.provider.OpenableColumns;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -63,8 +66,7 @@ public void onCreate(@Nullable Bundle savedInstanceState) {
                 Intent intent = result.getData();
                 // Handle the Intent
                 List<Uri> files = Utils.getSelectedFilesFromResult(intent);
-
-                String fileName = new File(files.get(0).getPath()).getName();
+                String fileName = getFileNameFromUri(files.get(0));
                 if (FileUtils.checkFileExistence(requireActivity(), fileName)) {
                   AlertDialog.Builder builder = new AlertDialog.Builder(requireActivity());
                   builder.setTitle(R.string.file_available_title);
@@ -110,6 +112,37 @@ public void handleOnBackPressed() {
     requireActivity().getOnBackPressedDispatcher().addCallback(onBackPressedCallback);
   }
 
+    /**
+     * Extracts the file name from a given Uri.
+     *
+     * @param uri The Uri from which to extract the file name.
+     * @return The extracted file name, or null if not found.
+     */
+    private String getFileNameFromUri(Uri uri) {
+        String fileName = null;
+        if (uri.getScheme().equals("content")) {
+            // If the Uri uses the content:// scheme, use a ContentResolver to get the file name
+            ContentResolver contentResolver = requireActivity().getContentResolver();
+            Cursor cursor = contentResolver.query(uri, null, null, null, null);
+            if (cursor != null) {
+                try {
+                    if (cursor.moveToFirst()) {
+                        int displayNameIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
+                        if (displayNameIndex != -1) {
+                            fileName = cursor.getString(displayNameIndex);
+                        }
+                    }
+                } finally {
+                    cursor.close();
+                }
+            }
+        } else if (uri.getScheme().equals("file")) {
+            // If the Uri uses the file:// scheme, directly extract the file name
+            fileName = new File(uri.getPath()).getName();
+        }
+        return fileName;
+    }
+
   private void processModelFromStorage(List<Uri> files, String fileName) {
 
     Model item =
@@ -146,25 +179,11 @@ private void processModelFromStorage(List<Uri> files, String fileName) {
   }
 
   private void openPicker() {
+      Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
+      intent.setType("application/octet-stream"); // Specify the MIME type for TFLite files
+      intent.addCategory(Intent.CATEGORY_OPENABLE);
 
-    Intent i = new Intent(requireActivity(), BackHandlingFilePickerActivity.class);
-    // This works if you defined the intent filter
-    // Intent i = new Intent(Intent.ACTION_GET_CONTENT);
-
-    // Set these depending on your use case. These are the defaults.
-    i.putExtra(BackHandlingFilePickerActivity.EXTRA_ALLOW_MULTIPLE, false);
-    i.putExtra(BackHandlingFilePickerActivity.EXTRA_ALLOW_CREATE_DIR, false);
-    i.putExtra(BackHandlingFilePickerActivity.EXTRA_MODE, BackHandlingFilePickerActivity.MODE_FILE);
-
-    // Configure initial directory by specifying a String.
-    // You could specify a String like "/storage/emulated/0/", but that can
-    // dangerous. Always use Android's API calls to get paths to the SD-card or
-    // internal memory.
-    i.putExtra(
-        BackHandlingFilePickerActivity.EXTRA_START_PATH,
-        Environment.getExternalStorageDirectory().getPath());
-
-    mStartForResult.launch(i);
+      mStartForResult.launch(intent);
   }
 
   @Nullable