MapFragment return null
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: mMapFragment = ( SupportMapFragment ) getSupportFragmentManager () . findFragmentByTag ( MAP_FRAGMENT_TAG ); // We only create a fragment if it doesn't already exist. if ( mMapFragment == null ) { mMapFragment = SupportMapFragment . newInstance (); // Then we add it using a FragmentTransaction. FragmentTransaction fragmentTransaction = getSupportFragmentManager (). beginTransaction (); fragmentTransaction . add ( MapLay . getId (), mMapFragment , MAP_FRAGMENT_TAG ); fragmentTransaction . commit (); mMap = mMapFragment . getMap ();