How to create bounds of a android polyline in order to fit the screen?

Question

I have an arraylist of LatLng coordinates. And I draw a polyline based on that coordinates list. How can I fit that polyline drawing into my screen? Is LatLngBounds.Builder the correct solution for that? If it is how can I use it?

Answer 1

You can try something like this:

private void moveToBounds(Polyline p){

    LatLngBounds.Builder builder = new LatLngBounds.Builder();
    for(int i = 0; i < p.getPoints().size();i++){
        builder.include(p.getPoints().get(i));
    }

    LatLngBounds bounds = builder.build();
    int padding = 0; // offset from edges of the map in pixels

    CameraUpdate cu = CameraUpdateFactory.newLatLngBounds(bounds, padding);
    mMap.animateCamera(cu);
}

Answer 2

I have do some improvements to the answer: The answer from Melo ist to slow

private void moveToBounds(Polyline p)
{

    LatLngBounds.Builder builder = new LatLngBounds.Builder();
    List<LatLng> arr = p.getPoints();
    for(int i = 0; i < arr.size();i++){
        builder.include(arr.get(i));
    }
    LatLngBounds bounds = builder.build();
    int padding = 40; // offset from edges of the map in pixels
    CameraUpdate cu = CameraUpdateFactory.newLatLngBounds(bounds, padding);
    mMap.animateCamera(cu);
}