TakingImageOfAView

If you want to take image of a particular View then follow this code

//Define a bitmap with height and width of the View Bitmap viewBitmap = Bitmap.createBitmap(v.getWidth(),v.getHeight(),Bitmap.Config.RGB_565);
  Canvas viewCanvas = new Canvas(viewBitmap);
  //get background of canvas Drawable backgroundDrawable = v.getBackground();
  if(backgroundDrawable!=null){
 backgroundDrawable.draw(viewCanvas);
//draw the background on canvas; 
}
 else{
 viewCanvas.drawColor(Color.GREEN);
 //draw on canvas v.draw(viewCanvas)  
}
  //write the above generated bitmap  to a file String fileStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());

OutputStream outputStream = null;

try{

 imgFile = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),fileStamp+".png");

 outputStream = new FileOutputStream(imgFile);

 b.compress(Bitmap.CompressFormat.PNG,40,outputStream);

 outputStream.close();

}

catch(Exception e){

 e.printStackTrace();

}
 

Don't forget to add this permission

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> 

This is very useful in cases like signature pads, where the user draws something and then wants to save an image of it.