Vertical Top To Bottom Line Gesture Detector

I used the https://play.google.com/store/apps/details?id=com.davemac327.gesture.tool&hl=en gesture tool and noticed that for a line which is top to bottom vertically is not abl

Solution 1:

There was problem with the above code which i solved by introducing

GestureOverlayViewgestures= (GestureOverlayView) findViewById(R.id.gestures);
        gestures.setGestureStrokeAngleThreshold( 90.0f);

As the default value of the angle threashold is 40.0f because of which simple vertical gestures would be skipped so changed it to 90.0f, so finally setting the GestureStrokeAngleThreshold to a value closer to 90.0f works fine