On Android 33+, it's now possible to preserve access to the picked im…

…ages after the app is restarted but it isn't recommended (see the relevant FAQ entry)(#328)

.github/AAR Source (Android)/java/com/yasirkula/unity/NativeGalleryMediaPickerFragment.java

@@ -3,6 +3,7 @@
 import android.app.Activity;
 import android.app.Fragment;
 import android.content.ActivityNotFoundException;
+import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.os.Build;
@@ -29,6 +30,7 @@ public class NativeGalleryMediaPickerFragment extends Fragment
 	public static boolean tryPreserveFilenames = false; // When enabled, app's cache will fill more quickly since most of the images will have a unique filename (less chance of overwriting old files)
 	public static boolean showProgressbar = true; // When enabled, a progressbar will be displayed while selected file(s) are copied (if necessary) to the destination directory
 	public static boolean useDefaultGalleryApp = false; // false: Intent.createChooser is used to pick the Gallery app
+	public static boolean GrantPersistableUriPermission = false; // When enabled, on newest Android versions, picked file can still be accessed after the app is restarted. Note that there's a 512-file hard limit: https://issuetracker.google.com/issues/149315521#comment7
 
 	private final NativeGalleryMediaReceiver mediaReceiver;
 	private boolean selectMultiple;
@@ -49,7 +51,10 @@ public void onCreate( Bundle savedInstanceState )
 	{
 		super.onCreate( savedInstanceState );
 		if( mediaReceiver == null )
+		{
+			Log.e( "Unity", "NativeGalleryMediaPickerFragment.mediaReceiver became null in onCreate!" );
 			onActivityResult( MEDIA_REQUEST_CODE, Activity.RESULT_CANCELED, null );
+		}
 		else
 		{
 			int mediaType = getArguments().getInt( MEDIA_TYPE_ID );
@@ -114,6 +119,9 @@ else if( mediaType == NativeGallery.MEDIA_TYPE_VIDEO )
 				intent.setType( mime );
 			}
 
+			if( ShouldGrantPersistableUriPermission( getActivity() ) )
+				intent.addFlags( Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION );
+
 			if( title != null && title.length() > 0 )
 				intent.putExtra( Intent.EXTRA_TITLE, title );
 
@@ -133,6 +141,11 @@ else if( mediaType == NativeGallery.MEDIA_TYPE_VIDEO )
 		}
 	}
 
+	public static boolean ShouldGrantPersistableUriPermission( Context context )
+	{
+		return GrantPersistableUriPermission && Build.VERSION.SDK_INT >= 33 && context.getApplicationInfo().targetSdkVersion >= 33;
+	}
+
 	@Override
 	public void onActivityResult( int requestCode, int resultCode, Intent data )
 	{
@@ -142,7 +155,7 @@ public void onActivityResult( int requestCode, int resultCode, Intent data )
 		NativeGalleryMediaPickerResultFragment resultFragment = null;
 
 		if( mediaReceiver == null )
-			Log.d( "Unity", "NativeGalleryMediaPickerFragment.mediaReceiver became null!" );
+			Log.d( "Unity", "NativeGalleryMediaPickerFragment.mediaReceiver became null in onActivityResult!" );
 		else if( resultCode != Activity.RESULT_OK || data == null )
 		{
 			if( !selectMultiple )

.github/AAR Source (Android)/java/com/yasirkula/unity/NativeGalleryMediaPickerResultOperation.java

@@ -5,6 +5,7 @@
 import android.content.Intent;
 import android.database.Cursor;
 import android.net.Uri;
+import android.os.Build;
 import android.provider.OpenableColumns;
 import android.util.Log;
 import android.webkit.MimeTypeMap;
@@ -50,9 +51,11 @@ public void execute()
 		{
 			if( !selectMultiple || data.getClipData() == null )
 			{
-				unityResult = getPathFromURI( data.getData() );
-				if( unityResult == null || ( unityResult.length() > 0 && !( new File( unityResult ).exists() ) ) )
-					unityResult = "";
+				String _unityResult = getPathFromURI( data.getData() );
+				if( _unityResult != null && _unityResult.length() > 0 && new File( _unityResult ).exists() )
+					unityResult = _unityResult;
+
+				Log.d( "Unity", "NativeGalleryMediaPickerResultOperation: " + _unityResult );
 			}
 			else
 			{
@@ -73,6 +76,8 @@ public void execute()
 						else
 							unityResult += ">" + _unityResult;
 					}
+
+					Log.d( "Unity", "NativeGalleryMediaPickerResultOperation: " + _unityResult );
 				}
 			}
 		}
@@ -106,7 +111,7 @@ public void sendResultToUnity()
 		sentResult = true;
 
 		if( mediaReceiver == null )
-			Log.d( "Unity", "NativeGalleryMediaPickerResultOperation.mediaReceiver became null!" );
+			Log.d( "Unity", "NativeGalleryMediaPickerResultOperation.mediaReceiver became null in sendResultToUnity!" );
 		else
 		{
 			if( selectMultiple )
@@ -133,10 +138,14 @@ private String getPathFromURI( Uri uri )
 				inputStream = new FileInputStream( new File( path ) );
 				inputStream.read();
 
+				if( NativeGalleryMediaPickerFragment.ShouldGrantPersistableUriPermission( context ) )
+					context.getContentResolver().takePersistableUriPermission( uri, Intent.FLAG_GRANT_READ_URI_PERMISSION );
+
 				return path;
 			}
 			catch( Exception e )
 			{
+				Log.e( "Unity", "Media uri isn't accessible via File API: " + uri, e );
 			}
 			finally
 			{
@@ -214,7 +223,10 @@ else if( filename.endsWith( extension ) )
 		{
 			InputStream input = resolver.openInputStream( uri );
 			if( input == null )
+			{
+				Log.w( "Unity", "Couldn't open input stream: " + uri );
 				return null;
+			}
 
 			if( fileSize < 0 )
 			{
@@ -289,6 +301,7 @@ else if( fileSize > 0 )
 					savedFiles.add( fullName );
 				}
 
+				Log.d( "Unity", "Copied media from " + uri + " to: " + tempFile.getAbsolutePath() );
 				return tempFile.getAbsolutePath();
 			}
 			finally

.github/README.md

@@ -55,6 +55,15 @@ Only Android & iOS platforms are supported. Editor functionality is for preview
 
 If you are sure that your plugin is up-to-date, then enable **Custom Proguard File** option from *Player Settings* and add the following line to that file: `-keep class com.yasirkula.unity.* { *; }`
 
+- **I save the picked image's path for later use but I can no longer access it after restarting the app**
+
+This happens on Android 33+ devices when *Target API Level* is set to 33 or later. The recommended solution is to copy the image to [persistentDataPath](https://docs.unity3d.com/ScriptReference/Application-persistentDataPath.html) because otherwise, the source image can be deleted by the user from Gallery, deleted by the operating system to free up space or overwritten by NativeGallery in the next *PickImage* call (if NativeGallery can't determine the image's source file path, then it copies the picked image to a fixed location in temporaryCachePath and thus, the image can easily be overwritten). If you still would like to persist access to the image, you can call the following code in your *Awake* function but be aware that this fix has a [hard limit of 512 files](https://issuetracker.google.com/issues/149315521#comment7):
+
+#if !UNITY_EDITOR && UNITY_ANDROID
+using( AndroidJavaClass ajc = new AndroidJavaClass( "com.yasirkula.unity.NativeGalleryMediaPickerFragment" ) )
+	ajc.SetStatic<bool>( "GrantPersistableUriPermission", true );
+#endif
+
 - **Android build fails, it says "error: attribute android:requestLegacyExternalStorage not found" in Console**
 
 `android:requestLegacyExternalStorage` attribute in _AndroidManifest.xml_ fixes a rare UnauthorizedAccessException on Android 10 but requires you to update your Android SDK to at least **SDK 29**. If this isn't possible for you, you should open *NativeGallery.aar* with WinRAR or 7-Zip and then remove the `<application ... />` tag from _AndroidManifest.xml_.

Plugins/NativeGallery/README.txt

@@ -1,4 +1,4 @@
-= Native Gallery for Android & iOS (v1.8.0) =
+= Native Gallery for Android & iOS (v1.8.1) =
 
 Documentation: https://github.com/yasirkula/UnityNativeGallery
 FAQ: https://github.com/yasirkula/UnityNativeGallery#faq

package.json

@@ -1,7 +1,7 @@
 {
   "name": "com.yasirkula.nativegallery",
   "displayName": "Native Gallery",
-  "version": "1.8.0",
+  "version": "1.8.1",
   "documentationUrl": "https://github.com/yasirkula/UnityNativeGallery",
   "changelogUrl": "https://github.com/yasirkula/UnityNativeGallery/releases",
   "licensesUrl": "https://github.com/yasirkula/UnityNativeGallery/blob/master/LICENSE.txt",