title: Zoom mapview to a region where pins are dropped
body: <p>If I have 3 pins in a mapview, how will I zoom to these pins, when the map loads. That is, when the map loads I need to have a zoomed view, but the view should accomodate all pins dropped in the map. Its working, when the map has just one pin. But I cant handle zoom with multiple pins. Help needed</p>