如何显示启用位置对话框，如谷歌地图？

Question

我使用最新版本的 Google Play 服务 (7.0) 并按照他们指南中给出的步骤操作，并启用了如下所示的位置对话框，该对话框有一个“从不”按钮。我的应用程序需要强制定位，所以我不想向用户显示“从不”，因为一旦用户点击“从不”，我就无法再次获取位置或请求位置。

谷歌地图只有“是”和“否”按钮，没有“从不”按钮，知道如何做到这一点吗？

我的应用程序的图像

谷歌地图的图片

原文由 Mufri A 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

LocationSettingsRequest.Builder 有一个方法 setAlwaysShow(boolean show) 。虽然文档表明它目前什么都不做（2015 年 7 月 5 日更新：更新的 Google 文档已删除此措辞），但设置 builder.setAlwaysShow(true); 将启用 Google 地图行为：

这是使它工作的代码：

 if (googleApiClient == null) {
    googleApiClient = new GoogleApiClient.Builder(getActivity())
            .addApi(LocationServices.API)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this).build();
    googleApiClient.connect();

    LocationRequest locationRequest = LocationRequest.create();
    locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
    locationRequest.setInterval(30 * 1000);
    locationRequest.setFastestInterval(5 * 1000);
    LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder()
            .addLocationRequest(locationRequest);

    //**************************
    builder.setAlwaysShow(true); //this is the key ingredient
    //**************************

    PendingResult<LocationSettingsResult> result =
            LocationServices.SettingsApi.checkLocationSettings(googleApiClient, builder.build());
    result.setResultCallback(new ResultCallback<LocationSettingsResult>() {
        @Override
        public void onResult(LocationSettingsResult result) {
            final Status status = result.getStatus();
            final LocationSettingsStates state = result.getLocationSettingsStates();
            switch (status.getStatusCode()) {
                case LocationSettingsStatusCodes.SUCCESS:
                    // All location settings are satisfied. The client can initialize location
                    // requests here.
                    break;
                case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
                    // Location settings are not satisfied. But could be fixed by showing the user
                    // a dialog.
                    try {
                        // Show the dialog by calling startResolutionForResult(),
                        // and check the result in onActivityResult().
                        status.startResolutionForResult(
                                getActivity(), 1000);
                    } catch (IntentSender.SendIntentException e) {
                        // Ignore the error.
                    }
                    break;
                case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE:
                    // Location settings are not satisfied. However, we have no way to fix the
                    // settings so we won't show the dialog.
                    break;
            }
        }
    });
}

来自 Android 文档

对于 Kotlin，请参见此处： https ://stackoverflow.com/a/61868985/12478830

原文由 Kai 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 2

实施 ‘com.google.android.gms:play-services-location:18.0.0’

 private SettingsClient mSettingsClient;
    private LocationSettingsRequest mLocationSettingsRequest;
    private static final int REQUEST_CHECK_SETTINGS = 214;
    private static final int REQUEST_ENABLE_GPS = 516;

 LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder();
        builder.addLocationRequest(new LocationRequest().setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY));
        builder.setAlwaysShow(true);
        mLocationSettingsRequest = builder.build();

        mSettingsClient = LocationServices.getSettingsClient(MainActivity.this);

        mSettingsClient
                .checkLocationSettings(mLocationSettingsRequest)
                .addOnSuccessListener(new OnSuccessListener<LocationSettingsResponse>() {
                    @Override
                    public void onSuccess(LocationSettingsResponse locationSettingsResponse) {
                        //Success Perform Task Here
                    }
                })
                .addOnFailureListener(new OnFailureListener() {
                    @Override
                    public void onFailure(@NonNull Exception e) {
                        int statusCode = ((ApiException) e).getStatusCode();
                        switch (statusCode) {
                            case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
                                try {
                                    ResolvableApiException rae = (ResolvableApiException) e;
                                    rae.startResolutionForResult(MainActivity.this, REQUEST_CHECK_SETTINGS);
                                } catch (IntentSender.SendIntentException sie) {
                                    Log.e("GPS","Unable to execute request.");
                                }
                                break;
                            case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE:
                                Log.e("GPS","Location settings are inadequate, and cannot be fixed here. Fix in Settings.");
                        }
                    }
                })
                .addOnCanceledListener(new OnCanceledListener() {
                    @Override
                    public void onCanceled() {
                        Log.e("GPS","checkLocationSettings -> onCanceled");
                    }
                });

原文由 sarjeet singh 发布，翻译遵循 CC BY-SA 4.0 许可协议