android ImageView画图添加数字显示

public class ImageNumberView extends ImageView
{
 public String number;
 private PaintFlagsDrawFilter pfd;
 Resources res = getResources();

 public ImageNumberView(Context context)
 {
  super(context);
 }

 public ImageNumberView(Context context, AttributeSet set)
 {

  super(context, set);
 }

 // 画图类
// public void onDraw(Canvas canvas)
// {
//
//  super.onDraw(canvas);
//  Paint mPaint = new Paint();
//  pfd = new PaintFlagsDrawFilter(0, Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
//  canvas.setDrawFilter(pfd);
//
//  String familyName = "Arial Rounded MT Bold";
//  Typeface font = Typeface.create(familyName, Typeface.BOLD);
//  mPaint.setColor(Color.BLACK);
//  mPaint.setTypeface(font);
//  mPaint.setTextSize(20);
//  if (number != null && !number.equals("0"))
//  {
//   if (number != null && number.length() == 1)
//   {
//    Bitmap bmp = BitmapFactory.decodeResource(res, R.drawable.num_bg3);
//    
//    canvas.drawBitmap(bmp, this.getWidth()-bmp.getWidth(), this.getHeight()-bmp.getHeight(), mPaint);
//    canvas.drawText(number, this.getWidth()-bmp.getWidth()/2-5, this.getHeight()-bmp.getHeight()/2+6, mPaint);
//   } else if (number != null && number.length() == 2)
//   {
//    Bitmap bmp = BitmapFactory.decodeResource(res, R.drawable.num_bg2);
//    canvas.drawBitmap(bmp, 17, 12, mPaint);
//    canvas.drawText(number, 24, 21, mPaint);
//   } else if (number != null && number.length() == 3)
//   {
//    Bitmap bmp = BitmapFactory.decodeResource(res, R.drawable.num_bg3);
//    canvas.drawBitmap(bmp, 12, 12, mPaint);
//    canvas.drawText(number, 19, 21, mPaint);
//   }
//  }
//
// }

 

    /**
     * 在给定的图片的右上角加上联系人数量。数量用红色表示
     * @param icon 给定的图片
     * @return 带联系人数量的图片
     */ 
    public Bitmap generatorContactCountIcon(Bitmap icon,int number){ 
        //初始化画布 
//        int iconSize=(int)getResources().getDimension(android.R.dimen.app_icon_size);
//        Log.d(TAG, "the icon size is "+iconSize);
       
//         Bitmap contactIcon=Bitmap.createBitmap(this.getWidth(), this.getHeight(), Config.ARGB_8888); 
       Bitmap contactIcon=Bitmap.createBitmap(icon.getWidth(), icon.getHeight(), Config.ARGB_8888); 
       Canvas canvas=new Canvas(contactIcon); 
        
       //拷贝图片 
       Paint iconPaint=new Paint(); 
       iconPaint.setDither(true);//防抖动 
       iconPaint.setFilterBitmap(true);//用来对Bitmap进行滤波处理，这样，当你选择Drawable时，会有抗锯齿的效果 
       Rect src=new Rect(0, 0, icon.getWidth(), icon.getHeight()); 
       Rect dst=new Rect(0, 0, icon.getWidth(), icon.getHeight()); 
       canvas.drawBitmap(icon, src, dst, iconPaint); 
        
       //在图片上创建一个覆盖的联系人个数 
       int contacyCount=number; 
       Bitmap bmp = BitmapFactory.decodeResource(res, R.drawable.num_bg3);
       //启用抗锯齿和使用设备的文本字距 
       Paint countPaint=new Paint(Paint.ANTI_ALIAS_FLAG|Paint.DEV_KERN_TEXT_FLAG); 
//       countPaint.setColor(Color.parseColor("#f63003"));
       countPaint.setColor(Color.WHITE);
       countPaint.setTextSize(35); 
       countPaint.setTypeface(Typeface.DEFAULT_BOLD);
       countPaint.setAntiAlias(true);
//       countPaint.setShadowLayer (5, 3, 3, 0xFF000000);//加阴影

       canvas.drawBitmap(bmp, 135, 1, countPaint);
       canvas.drawText(String.valueOf(contacyCount), 143, 35, countPaint); 
       return contactIcon; 
   } 
 
 
 
 public String getNumber()
 {
  return number;
 }

 public void setNumber(String number)
 {
  this.number = number;
 }

}