以屏幕截图（编程） [英] Taking screenshot of screen(programmatically)

问题描述

我想借此Android设备的屏幕截图编程。

我知道这个问题已经被问过很多times.I是知道的两种方式来做到这一点。

1. 使用截图库（但我越来越黑屏所有的时间）。



2. 正从帧缓冲数据与 \\ dev的生根\\图形\\ FB0 （但它始终是0字节，我不知道确切的位置，当前屏幕截图装置的存储）。我的preferred要求也越来越好框架rate.My code是

    公共无效的onCreate（捆绑savedInstanceState）
   {
      super.onCreate（savedInstanceState）;
      的setContentView（R.layout.main）;   意向意图=新的Intent（）;
      intent.setClass（这一点，ScreenshotService.class）;
      bindService（意向，新ServiceConnection（）{    @覆盖
       公共无效onServiceDisconnected（组件名名）
       {    }
       @覆盖
       公共无效onServiceConnected（组件名名称，服务的IBinder）{
         尝试{
               ASL = IScreenshotProvider.Stub.asInterface（服务）;
         }赶上（例外前）{
               Log.e（errrorrrrrrrrrrrrr，errrorrrrrrrrrrr，前）;
         }
       }
   }，Context.BIND_AUTO_CREATE）;
   按钮B1 =（按钮）this.findViewById（R.id.widget33）;
   b1.setOnClickListener（新OnClickListener（）{    公共无效的onClick（查看视图）
       {
           尝试{
               asl.takeScreenshot（）;
           }赶上（RemoteException的前）{
               Log.e（nnnnerrrrrrrrrrrrrr，errrrrrrrrrrrrr，前）;
           }
       }
   }）;
   }
    

解决方案

不要发布超过一次一个问题了。

您可以使用以下code得到您的视图的绘图缓存：

  view.setDrawingCacheEnabled（真）;
view.buildDrawingCache（）;
位图B1 = view.getDrawingCache（）;
 

I would like to take a screenshot of an Android device programmatically.

I know this question has been asked many times.I am aware of two ways to do it.

1. Using screenshot library(But I am getting black screen all the time).

2. getting data from frame buffer with rooting from \dev\graphics\fb0(But it is always 0 byte and I do not know exact location where current screenshot of device is stored). My preferred requirement is getting better frame rate.My code is

   public void onCreate(Bundle savedInstanceState)
   {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);
   
      Intent intent = new Intent();
      intent.setClass(this, ScreenshotService.class);
      bindService (intent,  new ServiceConnection() {
   
       @Override
       public void onServiceDisconnected(ComponentName name) 
       {
   
       }
       @Override
       public void onServiceConnected(ComponentName name, IBinder service) {
         try {
               asl = IScreenshotProvider.Stub.asInterface(service);
         } catch (Exception ex) {
               Log.e("errrorrrrrrrrrrrrr","errrorrrrrrrrrrr", ex);
         }
       }
   }, Context.BIND_AUTO_CREATE);
   Button b1=(Button) this.findViewById(R.id.widget33);
   b1.setOnClickListener(new OnClickListener() {
   
       public void onClick(View view) 
       {
           try {
               asl.takeScreenshot();
           } catch (RemoteException ex) {
               Log.e("nnnnerrrrrrrrrrrrrr","errrrrrrrrrrrrr",ex);
           }
       }
   });
   }'
   

解决方案

Dont post one question more than one time.

You can get the drawing cache of your view using the following code:

view.setDrawingCacheEnabled(true);
view.buildDrawingCache();
Bitmap b1 = view.getDrawingCache();

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