如何在片段中获取Google地图对象 [英] How to get Google Maps object inside a Fragment

问题描述

我在我的应用程序中使用了片段，我是新的。有一个片段，我想要显示Google Map并想要获取它的对象，为此，我在XML中有一个片段，并且我想在片段本身中使其膨胀。当我试图膨胀地图视图时，它显示我的getSupportFragmentManager（）错误。

如何获取地图对象，那是主要问题。我的XML是这样的： -

 < fragment 
 android：id =@ + id / map
 android：layout_width =match_parent
 android：layout_height =250dp
 class =com.google.android.gms.maps.SupportMapFragment/> 
  

我想要获取Google Map对象的Fragment就像这样： -

  public class FindMyCar extends Fragment {
 
 private TextView mTvFind; 
私人TextView mTvPark; 
 private EditText mEtParkHint; 
 
私人GoogleMap地图; 
 
 @Override 
 public void onCreate（Bundle savedInstanceState）{
 super.onCreate（savedInstanceState）; 
} 
 
 
 @覆盖
 public View onCreateView（LayoutInflater inflater，ViewGroup容器，
 Bundle savedInstanceState）{
 
 View view = inflater.inflate（R.layout.findmycar，null）; 
 
 initViews（view）; 
 
 Typeface Type = Typeface.createFromAsset（getActivity（）。getResources（）。getAssets（），Multicolore.otf）; 
 mTvFind.setTypeface（type）; 
 mTvPark.setTypeface（type）; 
 mEtParkHint.setTypeface（type）; 
 
 SupportMapFragment fm =（SupportMapFragment）getSupportFragmentManager（）。findFragmentById（R.id.map）; 
 
 
返回视图; 
} 
 
 
 @Override 
 public void onDestroyView（）{
 super.onDestroyView（）; 
} 
 
 
 @Override 
 public void onDestroy（）{
 super.onDestroy（）; 
 
 
 
 private void initViews（View view）{
 
 
 mTvPark =（TextView）view.findViewById（R.id。 tvFindCarPark）; 
 mTvFind =（TextView）view.findViewById（R.id.tvFindCar）; 
 mEtParkHint =（EditText）view.findViewById（R.id.etParkHint）; 
} 
  

有人可以帮助我获取地图的对象，以便我可以显示当前位置并在那里绘制标记。

任何帮助都是可观的。
在此先感谢。

解决方案

试试这个

  GoogleMap map =（（SupportMapFragment）getFragmentManager（）
 .findFragmentById（R.id.map））。getMap（）; 
  

和在您的xml中

 < fragment 
 android：id =@ + id / map
 android：layout_width =match_parent
 android：layout_height =match_parent
 class =com.google.android.gms.maps.SupportMapFragment/> 
  

I am using fragments in my application and I am new for this. There is a fragment in which I want to display Google Map and want to get its object, for this I have a fragment in my XML and I want to inflate it in the Fragment itself. When I am trying to inflate the map view its showing me error for getSupportFragmentManager().

How do I get the map object then that is the main issue. My XML is like this :-

 <fragment
                android:id="@+id/map"
                android:layout_width="match_parent"
                android:layout_height="250dp"
                class="com.google.android.gms.maps.SupportMapFragment" />

And my Fragment in which I want to get the Google Map object is like that :-

public class FindMyCar extends Fragment {

    private TextView mTvFind;
    private TextView mTvPark;
    private EditText mEtParkHint;

    private GoogleMap map;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.findmycar, null);

        initViews(view);

        Typeface type = Typeface.createFromAsset(getActivity().getResources().getAssets(),"Multicolore.otf"); 
        mTvFind.setTypeface(type);
        mTvPark.setTypeface(type);
        mEtParkHint.setTypeface(type);

        SupportMapFragment fm = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);


        return view;
    }


    @Override
    public void onDestroyView() {
        super.onDestroyView();
    }


    @Override
    public void onDestroy() {
        super.onDestroy();
    }


    private void initViews(View view){


        mTvPark = (TextView) view.findViewById(R.id.tvFindCarPark);
        mTvFind = (TextView) view.findViewById(R.id.tvFindCar);
        mEtParkHint = (EditText) view.findViewById(R.id.etParkHint);
    }

Can someone help me to get the object for my map so that I can show current location and draw the marker there.

Any help would be appreciable. Thanks in advance.

解决方案

Try this

 GoogleMap map = ((SupportMapFragment) getFragmentManager()
                .findFragmentById(R.id.map)).getMap();

and in your xml

<fragment
    android:id="@+id/map"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    class="com.google.android.gms.maps.SupportMapFragment" />

这篇关于如何在片段中获取Google地图对象的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！