Android 气泡图片

效果

：

setChatImg(bitmap, holder.iv_left_img, R.drawable.pic_07);

R.drawable.pic_07图片样式：

private void setChatImg(Bitmap base64,ImageView v,int drawable) {
   try {
      Bitmap bitmap_bg = BitmapFactory.decodeResource(getResources(), drawable);
      Bitmap bitmap_in =base64;
      if(bitmap_in==null){
         bitmap_in = BitmapFactory.decodeResource(getResources(),R.drawable.default_loading);
      }
      Bitmap newbm = zoomImg(bitmap_in, 360, 360);
      Bitmap bp = getRoundCornerImage(bitmap_bg, newbm);
      v.setImageBitmap(bp);
      Log.d("setImageBitmap","setImageBitmap=");
   } catch (Exception e) {
      e.printStackTrace();
   }
}

/** 
 *  处理图片  
 * @param bm 所要转换的bitmap 
 * @param newWidth新的宽 
 * @param newHeight新的高   
 * @return 指定宽高的bitmap 
 */ 
 public Bitmap zoomImg(Bitmap bm, int newWidth ,int newHeight){   
    // 获得图片的宽高   
    int width = bm.getWidth();   
    int height = bm.getHeight();   
    // 计算缩放比例   
    float scaleWidth = ((float) newWidth) / width;   
    float scaleHeight = ((float) newHeight) / height;   
    // 取得想要缩放的matrix参数   
    Matrix matrix = new Matrix();   
    matrix.postScale(scaleWidth, scaleHeight);   
    // 得到新的图片   www.2cto.com
    Bitmap newbm = Bitmap.createBitmap(bm, 0, 0, width, height, matrix, true);   
    return newbm;   
}  

public static Bitmap getRoundCornerImage(Bitmap bitmap_bg, Bitmap bitmap_in) {
   Bitmap roundConcerImage = Bitmap.createBitmap(bitmap_in.getWidth(), bitmap_in.getHeight(), Config.ARGB_8888);
   Canvas canvas = new Canvas(roundConcerImage);
   Paint paint = new Paint();
   Rect rect = new Rect(0, 0, bitmap_in.getWidth(), bitmap_in.getHeight());
   Rect rectF = new Rect(0, 0, bitmap_in.getWidth(), bitmap_in.getHeight());
   paint.setAntiAlias(true);
   NinePatch patch = new NinePatch(bitmap_bg, bitmap_bg.getNinePatchChunk(), null);
   patch.draw(canvas, rect);
   paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
   canvas.drawBitmap(bitmap_in, rectF, rect, paint);
   return roundConcerImage;
}