打开位置服务而不导航到设置页面

Question

与提示用户进入设置页面并启用位置服务并再次返回的传统方法相比，我注意到在一些最新应用程序中执行相同操作的更简单方法。

参考下面的屏幕截图，它会向用户提示一个对话框，只需点击一下即可启用位置服务，并且可以在这些应用中使用。

我怎样才能达到同样的目标？

Answer 1

此对话框由Google Play服务中提供的LocationSettingsRequest.Builder创建。

您需要为应用build.gradle添加依赖关系：

compile 'com.google.android.gms:play-services-location:10.0.1'

然后你可以使用这个最小的例子：

private void displayLocationSettingsRequest(Context context) {
    GoogleApiClient googleApiClient = new GoogleApiClient.Builder(context)
            .addApi(LocationServices.API).build();
    googleApiClient.connect();

    LocationRequest locationRequest = LocationRequest.create();
    locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
    locationRequest.setInterval(10000);
    locationRequest.setFastestInterval(10000 / 2);

    LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder().addLocationRequest(locationRequest);
    builder.setAlwaysShow(true);

    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();
            switch (status.getStatusCode()) {
                case LocationSettingsStatusCodes.SUCCESS:
                    Log.i(TAG, "All location settings are satisfied.");
                    break;
                case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
                    Log.i(TAG, "Location settings are not satisfied. Show the user a dialog to upgrade location settings ");

                    try {
                        // Show the dialog by calling startResolutionForResult(), and check the result
                        // in onActivityResult().
                        status.startResolutionForResult(MainActivity.this, REQUEST_CHECK_SETTINGS);
                    } catch (IntentSender.SendIntentException e) {
                        Log.i(TAG, "PendingIntent unable to execute request.");
                    }
                    break;
                case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE:
                    Log.i(TAG, "Location settings are inadequate, and cannot be fixed here. Dialog not created.");
                    break;
            }
        }
    });
}

您可以找到完整的示例here。

Answer 2

按照下面提到的步骤

1）根据您的意愿创建LocationRequest

LocationRequest mLocationRequest = LocationRequest.create()
           .setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
           .setInterval(10 * 1000)
           .setFastestInterval(1 * 1000);

2）创建LocationSettingsRequest.Builder

LocationSettingsRequest.Builder settingsBuilder = new LocationSettingsRequest.Builder()
               .addLocationRequest(mLocationRequest);
settingsBuilder.setAlwaysShow(true);

3）使用以下代码获取LocationSettingsResponse Task

Task<LocationSettingsResponse> result = LocationServices.getSettingsClient(this)
              .checkLocationSettings(settingsBuilder.build());

注意： LocationServices.SettingsApi已弃用，请改用<{1}}。

4）添加SettingsClient以从任务中获取结果。当OnCompleteListener完成时，客户端可以通过查看来自的状态代码来检查位置设置Task对象。

LocationSettingsResponse

案例1： result.addOnCompleteListener(new OnCompleteListener<LocationSettingsResponse>() { @Override public void onComplete(@NonNull Task<LocationSettingsResponse> task) { try { LocationSettingsResponse response = task.getResult(ApiException.class); } catch (ApiException ex) { switch (ex.getStatusCode()) { case LocationSettingsStatusCodes.RESOLUTION_REQUIRED: try { ResolvableApiException resolvableApiException = (ResolvableApiException) ex; resolvableApiException .startResolutionForResult(MapsActivity.this, LOCATION_SETTINGS_REQUEST); } catch (IntentSender.SendIntentException e) { } break; case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE: break; } } } }); ：位置未启用，但我们可以要求用户通过提示他打开对话框的位置来启用该位置（通过调用{{ 1}}）。

案例2： LocationSettingsStatusCodes.RESOLUTION_REQUIRED：不满足位置设置。但是，我们无法修复设置，因此我们不会显示对话框。

5） startResolutionForResult我们可以在位置设置对话框中获取用户操作。 LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE =＆gt;用户打开了位置。 OnActivityResult - 用户拒绝了位置设置请求。

Answer 3

其工作方式与谷歌地图类似

在build.gradle文件中添加依赖

compile 'com.google.android.gms:play-services:8.3.0'

这个或那个

compile 'com.google.android.gms:play-services-location:10.0.1'

import android.content.Context;
import android.content.IntentSender;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.PendingResult;
import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.common.api.Status;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.location.LocationSettingsRequest;
import com.google.android.gms.location.LocationSettingsResult;
import com.google.android.gms.location.LocationSettingsStatusCodes;

import java.util.List;

public class LocationOnOff_Similar_To_Google_Maps extends AppCompatActivity {

    protected static final String TAG = "LocationOnOff";

    private GoogleApiClient googleApiClient;
    final static int REQUEST_LOCATION = 199;

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

        this.setFinishOnTouchOutside(true);

        // Todo Location Already on  ... start
        final LocationManager manager = (LocationManager) LocationOnOff_Similar_To_Google_Maps.this.getSystemService(Context.LOCATION_SERVICE);
        if (manager.isProviderEnabled(LocationManager.GPS_PROVIDER) && hasGPSDevice(LocationOnOff_Similar_To_Google_Maps.this)) {
            Toast.makeText(LocationOnOff_Similar_To_Google_Maps.this,"Gps already enabled",Toast.LENGTH_SHORT).show();
            finish();
        }
        // Todo Location Already on  ... end

        if(!hasGPSDevice(LocationOnOff_Similar_To_Google_Maps.this)){
            Toast.makeText(LocationOnOff_Similar_To_Google_Maps.this,"Gps not Supported",Toast.LENGTH_SHORT).show();
        }

        if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER) && hasGPSDevice(LocationOnOff_Similar_To_Google_Maps.this)) {
            Log.e("keshav","Gps already enabled");
            Toast.makeText(LocationOnOff_Similar_To_Google_Maps.this,"Gps not enabled",Toast.LENGTH_SHORT).show();
            enableLoc();
        }else{
            Log.e("keshav","Gps already enabled");
            Toast.makeText(LocationOnOff_Similar_To_Google_Maps.this,"Gps already enabled",Toast.LENGTH_SHORT).show();
        }
    }


    private boolean hasGPSDevice(Context context) {
        final LocationManager mgr = (LocationManager) context
                .getSystemService(Context.LOCATION_SERVICE);
        if (mgr == null)
            return false;
        final List<String> providers = mgr.getAllProviders();
        if (providers == null)
            return false;
        return providers.contains(LocationManager.GPS_PROVIDER);
    }

    private void enableLoc() {

        if (googleApiClient == null) {
            googleApiClient = new GoogleApiClient.Builder(LocationOnOff_Similar_To_Google_Maps.this)
                    .addApi(LocationServices.API)
                    .addConnectionCallbacks(new GoogleApiClient.ConnectionCallbacks() {
                        @Override
                        public void onConnected(Bundle bundle) {

                        }

                        @Override
                        public void onConnectionSuspended(int i) {
                            googleApiClient.connect();
                        }
                    })
                    .addOnConnectionFailedListener(new GoogleApiClient.OnConnectionFailedListener() {
                        @Override
                        public void onConnectionFailed(ConnectionResult connectionResult) {

                            Log.d("Location error","Location error " + connectionResult.getErrorCode());
                        }
                    }).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);

            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();
                    switch (status.getStatusCode()) {
                        case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
                            try {
                                // Show the dialog by calling startResolutionForResult(),
                                // and check the result in onActivityResult().
                                status.startResolutionForResult(LocationOnOff_Similar_To_Google_Maps.this, REQUEST_LOCATION);

                                finish();
                            } catch (IntentSender.SendIntentException e) {
                                // Ignore the error.
                            }
                            break;
                    }
                }
            });
        }
    }

}

Answer 4

implementation 'com.google.android.gms:play-services-location:16.0.0'

变量声明

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

使用以下代码打开对话框

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

mSettingsClient = LocationServices.getSettingsClient(YourActivity.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(YourActivity.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");
        }
    });

onActivityResult

@Override
public void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == REQUEST_CHECK_SETTINGS) {
        switch (resultCode) {
            case Activity.RESULT_OK:
                //Success Perform Task Here
                break;
            case Activity.RESULT_CANCELED:
                Log.e("GPS","User denied to access location");
                openGpsEnableSetting();
                break;
        }
    } else if (requestCode == REQUEST_ENABLE_GPS) {
        LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        boolean isGpsEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);

        if (!isGpsEnabled) {
            openGpsEnableSetting();
        } else {
            navigateToUser();
        }
    }
}

private void openGpsEnableSetting() {
    Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
    startActivityForResult(intent, REQUEST_ENABLE_GPS);
}   

Answer 5

感谢Mattia Maestrini +1

Xamarin溶液：

using Android.Gms.Common.Apis;
using Android.Gms.Location;

public const int REQUEST_CHECK_SETTINGS = 0x1;

private void DisplayLocationSettingsRequest()
{
    var googleApiClient = new GoogleApiClient.Builder(this).AddApi(LocationServices.API).Build();
    googleApiClient.Connect();

    var locationRequest = LocationRequest.Create();
    locationRequest.SetPriority(LocationRequest.PriorityHighAccuracy);
    locationRequest.SetInterval(10000);
    locationRequest.SetFastestInterval(10000 / 2);

    var builder = new LocationSettingsRequest.Builder().AddLocationRequest(locationRequest);
    builder.SetAlwaysShow(true);

    var result = LocationServices.SettingsApi.CheckLocationSettings(googleApiClient, builder.Build());
    result.SetResultCallback((LocationSettingsResult callback) =>
    {
        switch (callback.Status.StatusCode)
        {
            case LocationSettingsStatusCodes.Success:
                {
                    DoStuffWithLocation();
                    break;
                }
            case LocationSettingsStatusCodes.ResolutionRequired:
                {
                    try
                    {
                        // Show the dialog by calling startResolutionForResult(), and check the result
                        // in onActivityResult().
                        callback.Status.StartResolutionForResult(this, REQUEST_CHECK_SETTINGS);
                    }
                    catch (IntentSender.SendIntentException e)
                    {
                    }

                    break;
                }
            default:
                {
                    // If all else fails, take the user to the android location settings
                    StartActivity(new Intent(Android.Provider.Settings.ActionLocationSourceSettings));
                    break;
                }
        }
    });
}

protected override void OnActivityResult(int requestCode, Android.App.Result resultCode, Intent data)
{
    switch (requestCode)
    {
        case REQUEST_CHECK_SETTINGS:
            {
                switch (resultCode)
                {
                    case Android.App.Result.Ok:
                        {
                            DoStuffWithLocation();
                            break;
                        }
                    case Android.App.Result.Canceled:
                        {
                            //No location
                            break;
                        }
                }
                break;
            }
    }
}

Answer 6

Android Marshmallow 6支持运行时权限。运行时权限仅适用于Marshmallow，而在Marshmallow之前，它仍然可以使用旧方法。

您可以在此Android开发者官方视频中了解有关它的更多信息：

https://www.youtube.com/watch?v=C8lUdPVSzDk

请求许可：http://developer.android.com/training/permissions/requesting.html

Answer 7

感谢Mattia Maestrini的答案，我想用

添加

DATA: lv_date TYPE dats. WRITE :/ COND #( WHEN lv_alpha IS INITIAL THEN lv_date ELSE lv_test ). " G .EF.ABCD WRITE :/ COND dats( WHEN lv_alpha IS INITIAL THEN '' ELSE lv_test ). " G .EF.ABCD WRITE :/ COND string( WHEN lv_alpha IS INITIAL THEN lv_date ELSE lv_test ). " ABCDEFG WRITE :/ COND string( WHEN lv_alpha IS INITIAL THEN '' ELSE lv_test ). " ABCDEFG

就足够了。这可以防止您的应用包含不必要的库，并有助于保持您的方法数量低。

Answer 8

如果您想替换 onActivityResult 中已弃用的 startResolutionForResult 和 Fragment，请参阅 https://stackoverflow.com/a/65816646/2914140。

val checkLocationSettings = 
    registerForActivityResult(ActivityResultContracts.StartIntentSenderForResult()) { result ->
        if (result.resultCode == RESULT_OK) {
            // GPS is turned on in system settings.
        }
}

...

val intentSenderRequest = IntentSenderRequest.Builder(resolvable.resolution).build()
checkLocationSettings.launch(intentSenderRequest)

Answer 9

最近更新了Marshmallow，即使启用了“位置”设置，您的应用也需要明确要求获得许可。建议的方法是显示应用的“权限”部分，其中用户可以根据需要切换权限。执行此操作的代码段如下：

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
    
    if (this.checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
    
        final AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("Location Permission");
        builder.setMessage("The app needs location permissions. Please grant this permission to continue using the features of the app.");
        builder.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                requestPermissions(new String[]{Manifest.permission.ACCESS_COARSE_LOCATION}, PERMISSION_REQUEST_COARSE_LOCATION);
    
            }
        });
        builder.setNegativeButton(android.R.string.no, null);
        builder.show();
    }
} else {
    // do programatically as show in the other answer 
}

并覆盖onRequestPermissionsResult方法，如下所示：

@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
        switch (requestCode) {
            case PERMISSION_REQUEST_COARSE_LOCATION: {
                if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    Log.d(TAG, "coarse location permission granted");
                } else {
                    Intent intent = new Intent();
                    intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                    Uri uri = Uri.fromParts("package", getPackageName(), null);
                    intent.setData(uri);
                    startActivity(intent);
                }
            }
        }
    }

另一种方法是您也可以使用SettingsApi来查询启用了哪个位置提供程序。如果未启用，则可以提示对话框从应用程序中更改设置。

Answer 10

科林解决方案

添加build.gradle(Module:app)

implementation 'com.google.android.gms:play-services-location:17.0.0'
implementation 'com.google.android.gms:play-services-maps:17.0.0'

之后创建此功能

fun enablegps() {

    val mLocationRequest = LocationRequest.create()
        .setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
        .setInterval(2000)
        .setFastestInterval(1000)

    val settingsBuilder = LocationSettingsRequest.Builder()
        .addLocationRequest(mLocationRequest)
    settingsBuilder.setAlwaysShow(true)

    val result = LocationServices.getSettingsClient(this).checkLocationSettings(settingsBuilder.build())
    result.addOnCompleteListener { task ->

        //getting the status code from exception
        try {
            task.getResult(ApiException::class.java)
        } catch (ex: ApiException) {

            when (ex.statusCode) {

                LocationSettingsStatusCodes.RESOLUTION_REQUIRED -> try {

                    Toast.makeText(this,"GPS IS OFF",Toast.LENGTH_SHORT).show()

                    // Show the dialog by calling startResolutionForResult(), and check the result
                    // in onActivityResult().
                    val resolvableApiException = ex as ResolvableApiException
                    resolvableApiException.startResolutionForResult(this,REQUEST_CHECK_SETTINGS
                    )
                } catch (e: IntentSender.SendIntentException) {
                    Toast.makeText(this,"PendingIntent unable to execute request.",Toast.LENGTH_SHORT).show()

                }

                LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE -> {

                    Toast.makeText(
                        this,
                        "Something is wrong in your GPS",
                        Toast.LENGTH_SHORT
                    ).show()

                }


            }
        }



    }


}

Answer 11

我研究时发现的最简单的方法是为该位置请求过程创建一个Util类，然后调用它为我们开启gps。

Please check this blog!它讲述了整个故事。

Answer 12

private void openDeviceLocationRequest() { 如果 (!locationPermissionGranted) 返回;

    LocationRequest locationRequest = LocationRequest.create();
    locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
    LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder()
            .addLocationRequest(locationRequest);
    builder.setAlwaysShow(true); //this is the key ingredient

    Task<LocationSettingsResponse> result =
            LocationServices.getSettingsClient(this).checkLocationSettings(builder.build());
    result.addOnCompleteListener(task -> {
        try {
            LocationSettingsResponse response = task.getResult(ApiException.class);
            // All location settings are satisfied. The client can initialize location
            // requests here.
            if(lastKnownLocation == null)
            getDeviceLocation();

        } catch (ApiException exception) {
            switch (exception.getStatusCode()) {
                case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
                    // Location settings are not satisfied. But could be fixed by showing the
                    // user a dialog.
                    try {
                        // Cast to a resolvable exception.
                        ResolvableApiException resolvable = (ResolvableApiException) exception;
                        // Show the dialog by calling startResolutionForResult(),
                        // and check the result in onActivityResult().
                        resolvable.startResolutionForResult(
                                MapAddressActivity.this,
                                REQUEST_CHECK_SETTINGS);
                    } catch (IntentSender.SendIntentException e) {
                        // Ignore the error.
                    } catch (ClassCastException e) {
                        // Ignore, should be an impossible 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;
            }
        }
    });
}