android 对图片做圆角处理

/*
private Bitmap outputRound(Bitmap bitmap){
if(bitmap == null)
return null;
int w = bitmap.getWidth();
    int h = bitmap.getHeight();
    Bitmap localBitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_4444);
    Canvas localCanvas = new Canvas(localBitmap);
   
    Path path = new Path();
    path.addRoundRect(new RectF(0,0,w,h), 6, 6, Path.Direction.CW);
    localCanvas.clipPath(path);
   
    localCanvas.drawBitmap(bitmap, 0.0F, 0.0F, null);   
    return localBitmap;
}
*/


private Bitmap outputRound1(Bitmap bitmap) {
if(bitmap == null)
return null;
int i = bitmap.getWidth();
int j = bitmap.getHeight();
Bitmap.Config localConfig = Bitmap.Config.ARGB_8888;
Bitmap localBitmap = Bitmap.createBitmap(i, j, localConfig);
Canvas localCanvas = new Canvas(localBitmap);
localCanvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR);
final int color = 0xff424242;  
    final Paint paint = new Paint();  
    Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());  
    RectF rectF = new RectF(rect);
   
    paint.setAntiAlias(true);  
    //localCanvas.drawARGB(0, 0, 0, 0);  
        //paint.setColor(color);  
        localCanvas.drawRoundRect(rectF, 10, 10, paint);  
        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));  
        localCanvas.drawBitmap(bitmap, rect, rect,paint);
      
        return localBitmap;       
}