Does a replacement for Gallery widget with View recycling exist?

Question

The default Gallery widget on Android does not recycle views - everytime the view for a new position is called the widget always calls the getView method of the

Answer 1

Another quicker WorkAround for the OutOfMemory Issues, is to try/catch the code where you decode the image and if the OutOfMemory-exception is thrown, you try to decode it with smaller Resolution again..

something like this:

private static Bitmap decodeFile(File f, int size, int suggestedScale) {

    int scale = 1;
    Bitmap bmp = null;
    try {
        // Decode image size
        BitmapFactory.Options o = new BitmapFactory.Options();
        o.inJustDecodeBounds = true;
        BitmapFactory.decodeStream(new FileInputStream(f), null, o);

        // Find the correct scale value. It should be the power of 2.
        int width_tmp = o.outWidth, height_tmp = o.outHeight;

        if(suggestedScale > 0)
            scale = suggestedScale;
        else {
            if (width_tmp >= height_tmp) {
                scale = Math.round((float)(width_tmp) / size);
            } else {
                scale = Math.round((float)(height_tmp) / size);
            }
        }

        if(scale < 2)
            return BitmapFactory.decodeFile(f.getPath()); 

        Debug.i(TAG, "width: " + width_tmp + "  height: " + height_tmp + "  scale: " + scale);


        // Decode with inSampleSize
        BitmapFactory.Options o2 = new BitmapFactory.Options();
        o2.inSampleSize = scale;
        bmp = BitmapFactory.decodeStream(new FileInputStream(f), null, o2);
    } catch (FileNotFoundException e) {

    } catch(OutOfMemoryError e) {
        Debug.i(TAG, "we retry it cause of an OutOfMemoryException");
        return decodeFile(f, size, scale+1);
    } catch(Exception e){
        Debug.w(TAG, e);
    }
    return bmp;
}

Ofcourse it is now possible, that you will see different resolutions of the same picture at different times - But at least your Gallery will not crash anymore and you allways show the highest resolution you can.