android bitmap.getConfig() = null

Question

Bitmap bmp = BitmapFactory.decodeStream(inputStream, null, op);
bmp.getConfig() = null;

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why bmp.getConfig() = null;

anybody who knows, please help me!

Answer 1

It looks like Bitmaps decoded from GIFs don't have a config. From AOSP's Bitmap source code,

public static Bitmap createBitmap(Bitmap source, int x, int y, int width, int height, Matrix m, boolean filter) {

   final Config config = source.getConfig();
        // GIF files generate null configs, assume ARGB_8888
        if (config != null) {
            ...
        }

}