Android之Bitmap之圆形头像

public Bitmap getRoundedCornerBitmap(Bitmap bitmap)

{

Bitmap outBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);

Canvas canvas = new Canvas(outBitmap);

final int color =0xff424242;

final Paint paint = new Paint();

final Rect rect = new Rect(0,0,bitmap.getWidth(),bitmap.getHeight());

final RectF rectF = new RectF(rect);

final float roundPX = bitmap.getWidth()/2;

paint.setAntiAlias(true);

canvas.drawARGB(0,0,0,0);

paint.setColor(color);

canvas.drawRoundRect(rectF, roundPX, roundPX, paint);

paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));

canvas.drawBitmap(bitmap, rect, rect, paint);

return outBitmap;

}

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