获取六边形头像(封装六边形方法)

//画六边形封装的方法，调用的话当数据成功加载下来的时候再调用

public static Bitmap getSixBitmap(Bitmap bitmap) {  

int width = bitmap.getWidth();
int height = bitmap.getHeight();
Bitmap output = Bitmap.createBitmap(width,  
       height, Config.ARGB_8888);  
   Canvas canvas = new Canvas(output);  
  
   final int color = 0xff424242;  
   final Paint paint = new Paint();  
  
   paint.setAntiAlias(true);  
   canvas.drawARGB(0, 0, 0, 0);  
   paint.setColor(color);  
   
   
   float centerX = width/2;
       float centerY = height/2;
       float radius = width/2;
       double radian30 = 30*Math.PI/180;
       float a = (float) (radius*Math.sin(radian30));
       float b = (float) (radius*Math.cos(radian30));

       Path localPath = new Path();
       localPath.moveTo(centerX, 0);
       localPath.lineTo(centerX+b, centerY-a);
       localPath.lineTo(centerX+b, centerY+a);
       localPath.lineTo(centerX, height);
       localPath.lineTo(centerX-b, centerY+a);
       localPath.lineTo(centerX-b, centerY-a);
       localPath.close();
       
       canvas.drawPath(localPath, paint);
       
   paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));  
   canvas.drawBitmap(bitmap, 0.0f, 0.0f, paint);  
  
   return output;  
}

/**
* 
* @Name: loadAvatarImage 
* @Description: 获取六边形头像
* @param  url
* @param  imageView    
* @return void    返回类型 
* @throws 
*
*/
public static
void loadHexagonAvatarImage(String url, ImageView imageView){
if(url ==
null || url.length() <= 0)
return;
DisplayImageOptions options =
new DisplayImageOptions.Builder()
.cacheOnDisc(true)
.cacheInMemory(false)
.showImageOnLoading(R.drawable.home_user_avatar_default)
.showImageOnFail(R.drawable.home_user_avatar_default)
.build();
ImageLoader.getInstance().displayImage(url, imageView, options,
new SimpleImageLoadingListener(){
@Override
public
void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
if(loadedImage !=
null)
((ImageView)view).setImageBitmap(getHexagonBitmap(loadedImage));
super.onLoadingComplete(imageUri, view, loadedImage);
}
});
}