Touch events are not working on map view

[SamuelBrucksch]

Hi,

since android auto lib 1.1.0 touch events are possible with the functions onScale, onScroll and onFling in SurfaceCallback. Do you know of an easy way, to pass it inside the view, so the RN view treats them as normal android touch events?

For example if i want to use Mapbox the system touch events are automatically handled, but for AA I need to pass them somehow into the view, so that Mapbox recognized them...

[SamuelBrucksch]

As additional information:

         override fun onScroll(distanceX: Float, distanceY: Float) {
        val now = SystemClock.uptimeMillis()

        val motionEvent = MotionEvent.obtain(now, now, MotionEvent.ACTION_DOWN, distanceX, distanceY, 0)
        Log.d(TAG, "on scroll $distanceX, $distanceY")
        presentation?.dispatchTouchEvent(motionEvent);

        val motionEvent3 = MotionEvent.obtain(now + 4, now + 4, MotionEvent.ACTION_UP, distanceX, distanceY, 0)
        Log.d(TAG, "on scroll $distanceX, $distanceY")
        presentation?.dispatchTouchEvent(motionEvent3);
      }

something like this seems to send touch events to the RN code, i can see events incoming with onTouchStart, but i could not figure out correctly so far, how it works correctly.

Double tap is kind of easy, as it uses the onScale (zoom) function:

      override fun onScale(x: Float, y: Float, scaleFactor: Float) {
        val now = SystemClock.uptimeMillis()

        val motionEvent = MotionEvent.obtain(now, now + 100, MotionEvent.ACTION_DOWN, x, y, 0)
        Log.d(TAG, "on onScale $x, $y")
        presentation?.dispatchTouchEvent(motionEvent);

        val motionEvent2 = MotionEvent.obtain(now + 200 , now + 300, MotionEvent.ACTION_UP, x, y, 0)
        presentation?.dispatchTouchEvent(motionEvent2);

        val motionEvent3 = MotionEvent.obtain(now + 400, now + 500, MotionEvent.ACTION_DOWN, x, y, 0)
        presentation?.dispatchTouchEvent(motionEvent3);

        val motionEvent4 = MotionEvent.obtain(now + 600, now + 700, MotionEvent.ACTION_UP, x, y, 0)
        presentation?.dispatchTouchEvent(motionEvent4);
      }

We just need to check for the double click specific scale factor, to use it as a double click, and generate a pinch event otherwise.