将“我的位置”添加到 Google 地图片段

Question

我正在尝试在我的应用内的 Google 地图片段中添加“我的位置”按钮。到目前为止，这是我的代码：

package com.example.sander.app;

公共类 GoogleMaps 扩展 Fragment 实现 OnMapReadyCallback {

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

@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);

    MapView mapView = (MapView) view.findViewById(R.id.map);
    mapView.onCreate(savedInstanceState);

    mapView.onResume(); // needed to get the map to display immediately

    try {
        MapsInitializer.initialize(getActivity().getApplicationContext());
    } catch (Exception e) {
        e.printStackTrace();
    }
    mapView.getMapAsync(this);

}

@Override
public void onMapReady(GoogleMap googleMap) {

    LatLng marker = new LatLng(51.9244201, 4.4777325);

    googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(marker, 12));

    googleMap.addMarker(new MarkerOptions().title("Testing").position(new LatLng(53.92, 4.47)));
    googleMap.addMarker(new MarkerOptions().title("Hello Google Maps!").position(marker));

    if (ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
        // TODO: Consider calling
        //    ActivityCompat#requestPermissions
        // here to request the missing permissions, and then overriding
        //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
        //                                          int[] grantResults)
        // to handle the case where the user grants the permission. See the documentation
        // for ActivityCompat#requestPermissions for more details.
        return;
    }
    googleMap.setMyLocationEnabled(true); // This is how I had implemented the setMyLocationEnabled method
    googleMap.getUiSettings().setMyLocationButtonEnabled(true);

}

}

我已经将权限添加到我的 AndroidManifest.xml 和 googleMap.setMyLocationEnable(true);不起作用。

谁能帮我将按钮添加到我的 Google 地图片段中

Answer 1

试试这个

mMap.setMyLocationEnabled(true);
mMap.getUiSettings().setMyLocationButtonEnabled(true);

Answer 2

如果有任何问题，请使用此代码并发表评论` 公共类 GoogleMaps 扩展 Fragment 实现 OnMapReadyCallback {

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

@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);

    MapView mapView = (MapView) view.findViewById(R.id.fragment_map_trip);
    mapView.onCreate(savedInstanceState);

    mapView.onResume(); // needed to get the map to display immediately

    try {
        MapsInitializer.initialize(getActivity().getApplicationContext());
    } catch (Exception e) {
        e.printStackTrace();
    }
    mapView.getMapAsync(this);

}

@Override
public void onMapReady(GoogleMap googleMap) {

    LatLng marker = new LatLng(51.9244201, 4.4777325);

    googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(marker, 12));

    googleMap.addMarker(new MarkerOptions().title("Testing").position(new LatLng(53.92, 4.47)));
    googleMap.addMarker(new MarkerOptions().title("Hello Google Maps!").position(marker));

    if (ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
        // TODO: Consider calling
        //    ActivityCompat#requestPermissions
        // here to request the missing permissions, and then overriding
        //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
        //                                          int[] grantResults)
        // to handle the case where the user grants the permission. See the documentation
        // for ActivityCompat#requestPermissions for more details.
        return;
    }
    googleMap.setMyLocationEnabled(true); // This is how I had implemented the setMyLocationEnabled method


}

}` 布局使用此代码

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/fragment_maps_frame"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="false">

<com.google.android.gms.maps.MapView
    android:id="@+id/fragment_map_trip"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" />
</FrameLayout>