PicassoLoaderProcessor.java 文件源码

@Override
public Bitmap transform(Bitmap source) {
    float roundPx = bitmapAngle;//角度
    Bitmap output = Bitmap.createBitmap(source.getWidth(),
            source.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(output);
    final int color = 0xff424242;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, source.getWidth(), source.getHeight());
    final RectF rectF = new RectF(rect);
    paint.setAntiAlias(true);
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(source, rect, rect, paint);
    source.recycle();
    return output;
}