ios googlemaps 开发 设置地图可见所有大头针

- (void)focusMapToShowAllMarkers
{

GMSCoordinateBounds *bounds = [[GMSCoordinateBounds alloc] init];

for (GMSMarker *marker in <An array of your markers>)
bounds = [bounds includingCoordinate:marker.position];

[<yourMap> animateWithCameraUpdate:[GMSCameraUpdate fitBounds:bounds withPadding:30.0f]];

}