Android Bitmap OOM处理

????public int calculateInSampleSize(BitmapFactory.Options option, int rWidth, int rHeight) {

????????final int width = option.outWidth;

????????final int height = option.outHeight;

????????option.inSampleSize = 1;

?

????????while ((height / option.inSampleSize) > rHeight || (width / option.inSampleSize) > rWidth) {

????????????option.inSampleSize *= 2;

????????}

????????return option.inSampleSize;

????}