Android实现带描边的圆角图片

package com.example.test; 
 
import android.app.Activity; 
import android.content.Context; 
import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.graphics.BitmapShader; 
import android.graphics.Canvas; 
import android.graphics.Color; 
import android.graphics.Paint; 
import android.graphics.RectF; 
import android.graphics.Paint.Style; 
import android.graphics.Shader.TileMode; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.FrameLayout; 
 
public class MainActivity extends Activity { 
 
 
 @Override 
 public void onCreate(Bundle savedInstanceState) { 
 super.onCreate(savedInstanceState); 
 setContentView(R.layout.main); 
 
 //获取布局文件中添加的帧布局管理器 
 FrameLayout fl=(FrameLayout)findViewById(R.id.frameLayout1); 
 //将自定义的MyView视图添加到帧布局 
 fl.addView(new MyView(this)); 
 } 
 
 public class MyView extends View{ 
 private float view_; 
 private float view_; 
 public MyView(Context context) { 
  super(context); 
  
 } 
 
 
 @Override 
 protected void onDraw(Canvas canvas) { 
  Paint paint=new Paint(); 
  paint.setAntiAlias(true); 
  Bitmap bitmap_bg=BitmapFactory.decodeResource(MainActivity.this.getResources(), R.drawable.backgroud); 
  canvas.drawBitmap(bitmap_bg, 0, 0,paint);//绘制背景 
  RectF rect=new RectF(0,0,280,180); 
  canvas.translate(40, 20);//将画布在X轴上平移40像素，在Y轴上平移20像素 
  //为图片添加描边 
  paint.setStyle(Style.STROKE);//设置填充样式为描边 
  paint.setColor(Color.BLACK);//设置颜色为黑色 
  paint.setStrokeWidth(2);//设置笔触宽度为2像素 
  canvas.drawRoundRect(rect, 10, 10, paint);//绘制一个描边的圆角矩形 
  
  paint.setStyle(Style.FILL);//设置填充样式为填充 
  Bitmap bm=BitmapFactory.decodeResource(MainActivity.this.getResources(), R.drawable.img1); 
  //创建一个在水平方向重复，在竖直方向镜像的BitmapShader对象 
  BitmapShader bs=new BitmapShader(bm,TileMode.REPEAT,TileMode.MIRROR); 
  paint.setShader(bs);//设置渲染对象 
  //绘制一个使用BitmapShader渲染的圆角矩形图片 
  canvas.drawRoundRect(rect, 10, 10, paint); 
 } 
 
 
 } 
}