zoom over specific route google map

Question

I have a list of random latitude and longitude points and I am drawing a route between them. My question is how to bound this route within google map I made below utili

Answer 1

The reason, why zooming in is not working might be because map has not been inflated yet at the time of calling the method:

moveCamera(com.google.android.gms.maps.CameraUpdate)

Try adding ViewTreeObserver.OnGlobalLayoutListener to the map:

ViewTreeObserver vto = googleMap.getViewTreeObserver();
ViewTreeObserver.OnGlobalLayoutListener globalLayoutListener = new ViewTreeObserver.OnGlobalLayoutListener() {
    @Override
    public void onGlobalLayout() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
            googleMap.getViewTreeObserver().removeOnGlobalLayoutListener(this);
        } else {
            googleMap.getViewTreeObserver().removeGlobalOnLayoutListener(this);
        }
        googleMap.moveCamera(CameraUpdateFactory.newLatLngBounds(mapBounds.build(), 10));
    }
};
vto.addOnGlobalLayoutListener(globalLayoutListener);

If the method above does not work GoogleMap has it's own listener for layout, you might use that:

googleMap.setOnCameraChangeListener(new OnCameraChangeListener() {

    @Override
    public void onCameraChange(CameraPosition arg0) {
        googleMap.moveCamera(CameraUpdateFactory.newLatLngBounds(mapBounds.build(), 10));
        googleMap.setOnCameraChangeListener(null);
    }
});

However, as of play-services-maps 9.4.0 version of the API the method above is deprecated. Use one of:

• GoogleMap.OnCameraMoveStartedListener

• GoogleMap.OnCameraMoveListener

• GoogleMap.OnCameraIdleListener