如何以编程方式在android设备上拍摄屏幕快照？

Question

I want to take the screen shot of the device. But my coding is take on only my application screen only..I need to take screenshot view screen of the device..and tell how to run on service. time interval should be 500ms for taking screen shot.

Here is screen shot code:

Bitmap bitmap;
View v1 = MyView.getRootView();
v1.setDrawingCacheEnabled(true);
bitmap = Bitmap.createBitmap(v1.getDrawingCache());
v1.setDrawingCacheEnabled(false);

Answer 1

You Can chek this

View view =  findViewById(R.id.rellayout);
        view.getRootView();
        String state = Environment.getExternalStorageState();
        if (Environment.MEDIA_MOUNTED.equals(state)) 
        {
            File picDir  = new File(Environment.getExternalStorageDirectory()+ "/name");
            if (!picDir.exists())
            {
                picDir.mkdir();
            }
            view.setDrawingCacheEnabled(true);
            view.buildDrawingCache(true);
            Bitmap bitmap = view.getDrawingCache();
//          Date date = new Date();
            String fileName = "mylove" + ".jpg";
            File picFile = new File(picDir + "/" + fileName);
            try 
            {
                picFile.createNewFile();
                FileOutputStream picOut = new FileOutputStream(picFile);
                bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), (int)(bitmap.getHeight()/1.2));//Optional
                boolean saved = bitmap.compress(CompressFormat.JPEG, 100, picOut);
                if (saved) 
                {
                    Toast.makeText(getApplicationContext(), "Image saved to your device Pictures "+ "directory!", Toast.LENGTH_SHORT).show();
                } else 
                {
                    //Error
                }
                picOut.close();
            } 
            catch (Exception e) 
            {
                e.printStackTrace();
            }
            view.destroyDrawingCache();
        } else {


        }

Answer 2

if you are able to capture screen shot of your application then simply Create a Receiver and receive the event on what you want to capture screen shot eg.

  <receiver android:name=".VolumeChangeReceiver" >
        <intent-filter>
            <action android:name="android.intent.action.MEDIA_BUTTON" />
        </intent-filter>
        <intent-filter android:priority="100" >
            <action android:name="android.intent.action.MEDIA_BUTTON" />
            <action android:name="android.media.VOLUME_CHANGED_ACTION" />
        </intent-filter>
    </receiver>

now inside receiver you can right your code ie

 Bitmap bitmap;
 View v1 = MyView.getRootView();
 v1.setDrawingCacheEnabled(true);
 bitmap = Bitmap.createBitmap(v1.getDrawingCache());
 v1.setDrawingCacheEnabled(false);

same you can do with power button it is all your wish on what action you want to capture screen shot,

try it might be helpful