Screenshot of camera surface view

Question

I am not able to capture screenshot of camera surface view pro-grammatically in android.
image getting saved as blank image .I have used Root view.

Below code i have tried 2 ways .

public void TakeScreenshot(){   
        Random num = new Random();
        int nu=num.nextInt(1000); 

        View v1 = surfaceView.getRootView();

       v1.setDrawingCacheEnabled(true);
       v1.buildDrawingCache(true);

        Bitmap bmp =  Bitmap.createBitmap(v1.getDrawingCache());

        ByteArrayOutputStream bos = new ByteArrayOutputStream(); 
        bmp.compress(CompressFormat.JPEG, 100, bos); 
        byte[] bitmapdata = bos.toByteArray();
        ByteArrayInputStream fis = new ByteArrayInputStream(bitmapdata);

        String picId=String.valueOf(nu);
        String myfile="Ghost"+picId+".jpeg";

        File dir_image = new  File(Environment.getExternalStorageDirectory()+
                        File.separator+"Ultimate Entity Detector");          
        dir_image.mkdirs();                                                  
        try {
            File tmpFile = new File(dir_image,myfile); 
            FileOutputStream fos = new FileOutputStream(tmpFile);

            byte[] buf = new byte[1024];
            int len;
            while ((len = fis.read(buf)) > 0) {
                fos.write(buf, 0, len);
            }
            fis.close();
            fos.close();
            Toast.makeText(getApplicationContext(),
                           "The file is saved at :SD/Ultimate Entity Detector",Toast.LENGTH_LONG).show();

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

This is the second way :

public void shareImage(){
          String path=Environment.getExternalStorageDirectory()+File.separator+"Screenshot11.jpeg";
           File imageFile=new File(path);
          DisplayMetrics dm = MainActivity.this.getResources().getDisplayMetrics(); 
          View v = MainActivity.this.getWindow().getDecorView().findViewById(R.id.lin).getRootView();
             v.measure(MeasureSpec.makeMeasureSpec(dm.widthPixels, MeasureSpec.EXACTLY),
                     MeasureSpec.makeMeasureSpec(dm.heightPixels, MeasureSpec.EXACTLY));
             v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
             Bitmap returnedBitmap = Bitmap.createBitmap(v.getMeasuredWidth(),
                     v.getMeasuredHeight(), Bitmap.Config.ARGB_8888);
             Canvas c = new Canvas(returnedBitmap);
             v.draw(c);
          OutputStream fout = null ;
          try {
              fout = new FileOutputStream(imageFile);
              returnedBitmap.compress(Bitmap.CompressFormat.JPEG, 90 , fout);
              fout.flush();
              fout.close();
              Toast.makeText(MainActivity.this, "Image saved!", Toast.LENGTH_SHORT).show();
          } catch ( FileNotFoundException e) {
           Toast.makeText(MainActivity.this,"File not found!", Toast.LENGTH_SHORT).show();
                      } catch (IOException e) {

           Toast.makeText(MainActivity.this, "IO Exception!", Toast.LENGTH_SHORT).show();

          }

}

Please include what you have tried so far and where it went wrong. — jozxyqk, Jul 01 '15 at 07:22
Alternatively, http://stackoverflow.com/questions/25086263/take-screenshot-of-surfaceview/ . In any event, the various drawing-cache approaches do not apply to the SurfaceView Surface. If you just want the camera image itself, you can capture that through the Camera API. — fadden, Jul 01 '15 at 17:32

score 0 · Answer 1 · answered Jul 01 '15 at 07:22

0

You can take a screenshot of layout with these code

       public Bitmap takeScreenshot() {
       View rootView = findViewById(android.R.id.content).getRootView();
       rootView.setDrawingCacheEnabled(true);
       return rootView.getDrawingCache();
       }

It will return you the currect view as a bitmap you can store the view in file.

That is all happy coding..:)

answered Jul 01 '15 at 07:22

Rhn Bhadani

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its not working same issue. :( – user3563954 Jul 01 '15 at 07:24
can you show your code what layout you are trying to catch the view. – Rhn Bhadani Jul 01 '15 at 07:26
Code is not readable write in proper formate pelase..!! – Rhn Bhadani Jul 01 '15 at 07:28
Check what you are geeting as V1 (view). – Rhn Bhadani Jul 01 '15 at 09:06

Screenshot of camera surface view

1 Answers1