如何在片段内使用AutocompleteSupportFragment

Question

我正在使用places api和依赖项

  implementation 'com.google.android.libraries.places:places:1.0.0'

我想在片段中添加AutocompleteSupportFragment。请帮助我将代码放在片段中的什么位置。我已经尝试过这些方法

1. onCreate()
2. onCreateView()
3. onViewCreated()
4. onActivityCreated()

但是它给出了空对象引用错误。我已经尝试了一项活动，但效果很好。

公共类MyActivity扩展Fragment实现OnMapReadyCallback {

    AutocompleteSupportFragment autocompleteSupportFragment;


    public ConsumerBookingMapFragment(){ }

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

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    mView = inflater.inflate(R.layout.fragment_consumer_booking_map,container,false);
    return mView;

}

    @Override
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        if (savedInstanceState != null) {
            mLastKnownLocation = savedInstanceState.getParcelable(KEY_LOCATION);
            mCameraPosition = savedInstanceState.getParcelable(KEY_CAMERA_POSITION);
        }
        mFusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(getActivity());
        mMapView = mView.findViewById(R.id.map);
        if(mMapView != null){
            mMapView.onCreate(null);
            mMapView.onResume();
            mMapView.getMapAsync(this);
        }
    }

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

Answer 1

在这篇文章中得到了回答...

Google Places API AutocompleteSupportFragment 空指针异常

要记住的事情..

确保在布局 xml 文件中使用组件。（不是 FrameLayout）还可以使用 android:name ，如下所示。

<fragment
            android:id="@+id/autoCompleteFragment"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
        android:name="com.google.android.libraries.places.widget.AutocompleteSupportFragment" />

并按照答案中的步骤操作