调用系统相机拍摄照片的时候，如何能连续拍摄一组照片，而不是点击确定之后就返回

Java code

    
    
    
    

     
     
     
      
     
     
     
     public
     
     
     
      
     
     
     
     class
     
     
     
      MainActivity 
     
     
     
     extends
     
     
     
      Activity { 
     
     
     
     //
     
     
     
     声明拍照界面组件
     
     
     
      
     
     
     
      
     
     
     
     private
     
     
     
      SurfaceView surfaceView; 
     
     
     
     //
     
     
     
     声明界面控制组件
     
     
     
      
     
     
     
      
     
     
     
     private
     
     
     
      SurfaceHolder surfaceHolder; 
     
     
     
     //
     
     
     
     声明照相机
     
     
     
      
     
     
     
      
     
     
     
     private
     
     
     
      Camera camera; 
     
     
     
     /**
     
     
     
      Called when the activity is first created. 
     
     
     
     */
     
     
     
      @Override 
     
     
     
     public
     
     
     
      
     
     
     
     void
     
     
     
      onCreate(Bundle savedInstanceState) { 
     
     
     
     super
     
     
     
     .onCreate(savedInstanceState); setContentView(R.layout.main); 
     
     
     
     //
     
     
     
     获取拍照界面组件
     
     
     
      
     
     
     
      surfaceView 
     
     
     
     =
     
     
     
      (SurfaceView)findViewById(R.id.preview); 
     
     
     
     //
     
     
     
     获取界面控制组件
     
     
     
      
     
     
     
      surfaceHolder 
     
     
     
     =
     
     
     
      surfaceView.getHolder(); 
     
     
     
     //
     
     
     
     界面控制组件回调，处理打开相机，关闭相机及照片尺寸改变
     
     
     
      
     
     
     
      Callback surfaceCallback 
     
     
     
     =
     
     
     
      
     
     
     
     new
     
     
     
      Callback() { @Override 
     
     
     
     public
     
     
     
      
     
     
     
     void
     
     
     
      surfaceDestroyed(SurfaceHolder holder) { 
     
     
     
     //
     
     
     
      TODO Auto-generated method stub 
     
     
     
     //
     
     
     
     停止预览
     
     
     
      
     
     
     
      camera.stopPreview(); 
     
     
     
     //
     
     
     
     释放相机资源
     
     
     
      
     
     
     
      camera.release(); camera 
     
     
     
     =
     
     
     
      
     
     
     
     null
     
     
     
     ; } @Override 
     
     
     
     public
     
     
     
      
     
     
     
     void
     
     
     
      surfaceCreated(SurfaceHolder holder) { 
     
     
     
     //
     
     
     
      TODO Auto-generated method stub 
     
     
     
     //
     
     
     
     打开相机
     
     
     
      
     
     
     
      camera 
     
     
     
     =
     
     
     
      Camera.open(); 
     
     
     
     try
     
     
     
     { 
     
     
     
     //
     
     
     
     设置预览
     
     
     
      
     
     
     
      camera.setPreviewDisplay(holder); }
     
     
     
     catch
     
     
     
     (Exception ex){ ex.printStackTrace(); } } @Override 
     
     
     
     public
     
     
     
      
     
     
     
     void
     
     
     
      surfaceChanged(SurfaceHolder holder, 
     
     
     
     int
     
     
     
      format, 
     
     
     
     int
     
     
     
      width, 
     
     
     
     int
     
     
     
      height) { 
     
     
     
     //
     
     
     
      TODO Auto-generated method stub 
     
     
     
     //
     
     
     
     获得相机参数
     
     
     
      
     
     
     
      Camera.Parameters params 
     
     
     
     =
     
     
     
      camera.getParameters(); 
     
     
     
     //
     
     
     
     设置照片大小
     
     
     
      
     
     
     
      params.setPreviewSize(width, height); 
     
     
     
     //
     
     
     
     设置照片格式
     
     
     
      
     
     
     
      params.setPictureFormat(PixelFormat.JPEG); 
     
     
     
     //
     
     
     
     设置相机参数
     
     
     
      
     
     
     
      camera.setParameters(params); 
     
     
     
     //
     
     
     
     开始预览
     
     
     
      
     
     
     
      camera.startPreview(); } }; 
     
     
     
     //
     
     
     
     为SurfaceHolder添加回调并设置类型
     
     
     
      
     
     
     
      surfaceHolder.addCallback(surfaceCallback); surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } 
     
     
     
     class
     
     
     
      SavePictureTask 
     
     
     
     extends
     
     
     
      AsyncTask
     
     
     
     <
     
     
     
     byte
     
     
     
      [],String,String
     
     
     
     >
     
     
     
     { @Override 
     
     
     
     protected
     
     
     
      String doInBackground(
     
     
     
     byte
     
     
     
     []... params) { 
     
     
     
     //
     
     
     
      TODO Auto-generated method stub 
     
     
     
     //
     
     
     
     创建文件
     
     
     
      
     
     
     
      File picture 
     
     
     
     =
     
     
     
      
     
     
     
     new
     
     
     
      File(Environment.getExternalStorageDirectory(),
     
     
     
     "
     
     
     
     picture.jpg
     
     
     
     "
     
     
     
     ); 
     
     
     
     //
     
     
     
     如果文件存在就删除掉
     
     
     
      
     
     
     
      
     
     
     
     if
     
     
     
     (picture.exists()){ picture.delete(); } 
     
     
     
     try
     
     
     
     { 
     
     
     
     //
     
     
     
     获得文件输出流
     
     
     
      
     
     
     
      FileOutputStream fos 
     
     
     
     =
     
     
     
      
     
     
     
     new
     
     
     
      FileOutputStream(picture.getPath()); 
     
     
     
     //
     
     
     
     写入文件
     
     
     
      
     
     
     
      fos.write(params[
     
     
     
     0
     
     
     
     ]); 
     
     
     
     //
     
     
     
     清空并关闭文件流
     
     
     
      
     
     
     
      fos.flush(); fos.close(); }
     
     
     
     catch
     
     
     
     (Exception ex){ ex.printStackTrace(); } 
     
     
     
     return
     
     
     
      
     
     
     
     null
     
     
     
     ; } } 
     
     
     
     //
     
     
     
     照片回调，执行保存照片任务并回到预览界面
     
     
     
      
     
     
     
      Camera.PictureCallback pictureCallback 
     
     
     
     =
     
     
     
      
     
     
     
     new
     
     
     
      PictureCallback() { @Override 
     
     
     
     public
     
     
     
      
     
     
     
     void
     
     
     
      onPictureTaken(
     
     
     
     byte
     
     
     
     [] data, Camera camera) { 
     
     
     
     //
     
     
     
      TODO Auto-generated method stub
     
     
     
      
     
     
     
      
     
     
     
     new
     
     
     
      SavePictureTask().execute(data); camera.startPreview(); } }; 
     
     
     
     //
     
     
     
     拍照方法
     
     
     
      
     
     
     
      
     
     
     
     private
     
     
     
      
     
     
     
     void
     
     
     
      takePic(){ 
     
     
     
     //
     
     
     
     停止预览
     
     
     
      
     
     
     
      [color
     
     
     
     =
     
     
     
     #FFFF00]camera.stopPreview();[
     
     
     
     /
     
     
     
     color] 
     
     
     
     //
     
     
     
     拍照
     
     
     
      
     
     
     
      camera.takePicture(
     
     
     
     null
     
     
     
     , 
     
     
     
     null
     
     
     
     , pictureCallback); } 
     
     
     
     //
     
     
     
     响应拍照按键事件
     
     
     
      
     
     
     
      @Override 
     
     
     
     public
     
     
     
      
     
     
     
     boolean
     
     
     
      onKeyDown(
     
     
     
     int
     
     
     
      keyCode, KeyEvent event) { 
     
     
     
     //
     
     
     
      TODO Auto-generated method stub
     
     
     
      
     
     
     
      
     
     
     
     if
     
     
     
     (keyCode 
     
     
     
     ==
     
     
     
      KeyEvent.KEYCODE_CAMERA 
     
     
     
     ||
     
     
     
      keyCode 
     
     
     
     ==
     
     
     
      KeyEvent.KEYCODE_SEARCH){ [color
     
     
     
     =
     
     
     
     #FF0000]takePic();[
     
     
     
     /
     
     
     
     color] 
     
     
     
     return
     
     
     
      
     
     
     
     true
     
     
     
     ; } 
     
     
     
     return
     
     
     
      
     
     
     
     super
     
     
     
     .onKeyDown(keyCode, event); } 
    
    
    
    

划红线的代码用线程管理，多执行几次就行了，黄色代码注释掉就不会停止预览了