GraphicsUtil.java 文件源码

public Bitmap getCircleBitmap(Bitmap bitmap, int n) {
       Bitmap bitmap2 = Bitmap.createBitmap((int)bitmap.getWidth(), (int)bitmap.getHeight(), (Bitmap.Config)Bitmap.Config.ARGB_8888);
       Canvas canvas = new Canvas(bitmap2);
       Paint paint = new Paint();
       Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
       RectF rectF = new RectF(rect);
       paint.setAntiAlias(true);
       paint.setDither(true);
       paint.setFilterBitmap(true);
       canvas.drawARGB(0, 0, 0, 0);
       paint.setColor(-65536);
       canvas.drawOval(rectF, paint);
       paint.setColor(-16776961);
       paint.setStyle(Paint.Style.STROKE);
       paint.setStrokeWidth(4.0f);
       paint.setXfermode((Xfermode)new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
       canvas.drawBitmap(bitmap, rect, rect, paint);
       return bitmap2;
}