Android 加上「；“我的位置”；谷歌地图片段

我正在尝试将“我的位置”按钮添加到我的应用程序中的谷歌地图片段中。这是我目前的代码：

package com.example.sander.app;

公共类GoogleMaps在MapReadyCallback上扩展了片段实现{

@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);

}

@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


}

}

我已经向AndroidManifest.xml和googleMap.setMyLocationEnable（true）添加了权限；不起作用

有人能帮我把这个按钮添加到我的谷歌地图片段吗

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

---

请使用此代码并在出现任何问题时进行注释` 公共类GoogleMaps在MapReadyCallback上扩展了片段实现{

@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);

}

@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>

用于地图谷歌地图中的位置按钮。setMyLocationEnabled（true）；您是否可以发布您是如何实现setMyLocationEnable（true）的？您在清单中添加了什么样的权限？我将其添加到代码中只是为了确定是否会调用MapReady上的方法？@MichaelMeyer我不知道。我知道我的地图显示在我的应用程序中&放置标记很有效！这不起作用，因为它不是一项活动。这是一个fragment@SanderBakker它在我的片段中起作用。它不需要活动，只需将此代码放入

onMapReady（GoogleMap GoogleMap）

是的，我试过了，但在那之后，由于android SDK 21和权限处理，我收到了调用错误。你能发布你的代码吗？我需要看一个例子@sachinshellarcode工作，但我看不到“我的位置”按钮您使用的正是我的代码，或者您在代码中添加了我的代码？我使用的是您的代码。您可以在本主题的顶部看到它（更新了代码），用于地图和启用我的位置。我们需要以下内容，请查看这些内容。1.清单文件中的权限。2.build.Gradle文件中的Gradle依赖项。3.Google api控制台设置（启用api并生成密钥）。4.服务器和google-services.json文件中的Api密钥。5.我给你的Java和布局代码。