Question 127593 in Android Studio Question posted in
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Android Studio – How to view pictures stored in gallery via URI

I have am creating an app that will allow a user to pick a photo from the gallery. Once they click on the photo I am saving the uri to my room db. When I try to go back and view the photo in my app I get this error

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.dayaramo.wearyourcloset/com.dayaramo.wearyourcloset.EditItem}: java.lang.SecurityException: No persistable permission grants found for UID 10492 and Uri content://com.android.externalstorage.documents/document/primary:DCIM/Camera/20200508_145429.jpg

I know that you are supposed to use the takePersistableUriPermissions but it seems to be ignoring that.

The code to pick and save the image uri from the gallery is

void imageChooser() {

        Intent intent = new Intent();
        intent.setType("image/*");
        intent.setAction(Intent.ACTION_GET_CONTENT);
        startActivityForResult(Intent.createChooser(intent, "Select Picture"), SELECT_PICTURE);

    }
  @RequiresApi(api = Build.VERSION_CODES.KITKAT)
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
      if (requestCode == SELECT_PICTURE && resultCode == RESULT_OK)  {

                Uri selectedImageUri = data.getData();
                if (null != selectedImageUri) {
                    // update the preview image in the layout
                    pictureResult.setImageURI(selectedImageUri);
                }
            }
    }

The code to view the photo again is

Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.setType("image/*");
this.getContentResolver().takePersistableUriPermission(uri, Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
pictureResult.setImageURI(uri);

Is it best practice to copy the photo from the shared storage into the apps internal storage? I don’t care if the photo get’s moved or deleted which is why I just want to use the URI instead of copying it.

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2

Answers


  1. 0

    The code to view the photo again is

    Other than perhaps the last line, the rest of that code snippet is either incorrect or unused.

    Instead, call takePersistableUriPermission() inside onActivityResult(), so you request durable access right away:

      @RequiresApi(api = Build.VERSION_CODES.KITKAT)
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
      if (requestCode == SELECT_PICTURE && resultCode == RESULT_OK)  {

                Uri selectedImageUri = data.getData();
                if (null != selectedImageUri) {
                    // update the preview image in the layout
                    pictureResult.setImageURI(selectedImageUri);
                    getContentResolver().takePersistableUriPermission(uri, Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
                }
            }
    }

    Also, only ask for write permission if you are intending to replace the image at that Uri, and bear in mind that you cannot always get write access.

    And, as blackapps noted, you need to switch from ACTION_GET_CONTENT to ACTION_OPEN_DOCUMENT.

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  2. 0

    For Intent.ACTION_GET_CONTENT you cannot take persistable permission.

    Use ACTION_OPEN_DOCUMENT instead.

    Take them in onActivityResult as you have been said already.

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