CODEWITHSUNDEEP
androidmediastore
joakimk
joakimk

Reputation: 852

Can't read thumbnails on Android 10 (loadThumbnail)

I'm reading thumbnails from the device by querying the MediaStore, using MediaStore.Images.Thumbnails.getThumbnail(). However, this has been deprecated in Android 10 (API 29), with a pointer to ContentResolver#loadThumbnail: https://developer.android.com/reference/android/provider/MediaStore.Images.Thumbnails

However, I can't get this to work (in an emulated device running API 29). I've copied some JPEGs onto the emulated device, which end up in the Downloads folder. They show up fine in the Photos app. The following code gives me a FileNotFoundException. What does "No content provider" actually tell me?

try {

    Size thumbSize = new Size(100, 100);
    Uri thumbUri = Uri.fromFile(new File(imgPath));
    // imgPath: /storage/emulated/0/Download/pexels-photo-323490.jpeg
    // thumbUri: file:///storage/emulated/0/Download/pexels-photo-323490.jpeg

    Bitmap thumbBitmap;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
        thumbBitmap = mContext.getContentResolver().loadThumbnail(thumbUri, thumbSize, null);
    } else {
        thumbBitmap = MediaStore.Images.Thumbnails.getThumbnail(mContext.getContentResolver(),
                imgId, MediaStore.Images.Thumbnails.MINI_KIND, null);
    }

    iconView.setImageBitmap(thumbBitmap);
} catch (Exception e) {
    Log.e("err", e.toString());
}

Exception: 

java.io.FileNotFoundException: No content provider: file:///storage/emulated/0/Download/pexels-photo-323490.jpeg

Upvotes: 10

Views: 9748

Answers (3)

Samuel Aktar Laskar
Samuel Aktar Laskar

Reputation: 21

The uri may not be good. I mean try using FileProvider to get uri of the file. If your legecyExternalStorage is false, then you can not access file like this. The same goes for android 12. You need to use MediaStore to get the contentUri

Upvotes: 0

Nafis Kabbo
Nafis Kabbo

Reputation: 710

The best Answer for getting Thumbnail and All Android Versions is this:

val thumbnail: Bitmap = if ((Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q)) {
    mContentResolver.loadThumbnail(contentUri, Size(width / 2, height / 2), null)
} else {
    MediaStore.Images.Thumbnails.getThumbnail(mContentResolver, id, MediaStore.Images.Thumbnails.MINI_KIND, null)
}

Upvotes: 1

GGK stands for Ukraine
GGK stands for Ukraine

Reputation: 678

Please try this, hope it works for You:

int thumbColumn = cur.getColumnIndexOrThrow(MediaStore.Images.ImageColumns._ID); 
int _thumpId = cur.getInt(thumbColumn); 
Uri imageUri_t = ContentUris.withAppendedId(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,_thumpId);

GGK

Upvotes: 6

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