How to draw a Line in ImageView on Android?

Question

I\'d Like to know how to draw a Line on ImageView as user swipe their finger ?

Could any body explain this ? Or perhaps any Link to get start on this.

Answer 1

For drawing the line the user actually drew you have to override the dispatchTouchEvent. From that event you can get the coordinates of the line and draw them in the onDraw as shown by george.

http://developer.android.com/reference/android/app/Activity.html#dispatchTouchEvent(android.view.MotionEvent)