Android 地图 v2 缩放以显示所有标记

xml
    android:id="@+id/map_fragment"
    android:name="com.google.android.gms.maps.SupportMapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

java
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
        .findFragmentById(R.id.map_fragment);
mapFragment.getMapAsync(this);
@Override
public void onMapReady(GoogleMap googleMap) {
    mMap = googleMap;
    mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
    // 设置其他地图属性...
}

java
LatLng sydney = new LatLng(-34, 151);
mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
LatLng melbourne = new LatLng(-37, 144);
mMap.addMarker(new MarkerOptions().position(melbourne).title("Marker in Melbourne"));
// 添加更多的标记...

java
LatLngBounds.Builder builder = new LatLngBounds.Builder();
builder.include(sydney);
builder.include(melbourne);
// 添加更多的标记...
LatLngBounds bounds = builder.build();
int padding = 100; // 设置边界的内边距
CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngBounds(bounds, padding);
mMap.animateCamera(cameraUpdate);