How to take a screenshot and share it programmatically

Question

I am making an application in Android in which I have to take screenshot of one of my activities and mail it as attachment.

I want to take screenshot of the current

Answer 1

This is how I captured the screen and shared it. Take a look if you are interested.

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

And the method that saves the bitmap image to external storage:

public void saveBitmap(Bitmap bitmap) {
  File imagePath = new File(Environment.getExternalStorageDirectory() +       "/screenshot.png");
  FileOutputStream fos;
  try {
  fos = new FileOutputStream(imagePath);
  bitmap.compress(CompressFormat.JPEG, 100, fos);
 fos.flush();
 fos.close();
 } catch (FileNotFoundException e) {
Log.e("GREC", e.getMessage(), e);
} catch (IOException e) {
Log.e("GREC", e.getMessage(), e);
}}

see more in : https://www.youtube.com/watch?v=LRCRNvzamwY&feature=youtu.be