在我的应用程序中使用Android默认GPS开关对话框

Question

在我们的应用程序中，我们希望集成android默认GPS对话框。当GPS关闭，我们在谷歌地图应用程序中按下我的位置按钮时，会出现相同的对话框。还附上了我想要集成的对话框的图像。

1. 单击“否”选项将关闭对话框。
2. 单击是选项将直接激活设备的GPS。

我们现有的实现是当GPS关闭时，我们将应用程序重定向到设备的默认位置设置屏幕，从那里他/她可以打开位置。

期待答案。提前感谢。

Answer 1

Ola Cabs正在使用最新发布的设置API来实现此功能。根据新的API，用户无需导航到设置页面即可启用位置服务，从而实现无缝集成。请阅读本文了解更多详细信息。

Answer 2

import android.content.Intent;
import android.content.IntentSender;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
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;

public class LocSettingsActivity extends AppCompatActivity implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, ResultCallback {

    protected GoogleApiClient mGoogleApiClient;
    protected LocationRequest locationRequest;
    int REQUEST_CHECK_SETTINGS = 100;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_loc_settings);

        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addApi(LocationServices.API)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this).build();
        mGoogleApiClient.connect();

        locationRequest = LocationRequest.create();
        locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        locationRequest.setInterval(30 * 1000);
        locationRequest.setFastestInterval(5 * 1000);
    }

    @Override
    public void onConnected(@Nullable Bundle bundle) {

        LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder()
                .addLocationRequest(locationRequest);
        builder.setAlwaysShow(true);
        PendingResult result =
                LocationServices.SettingsApi.checkLocationSettings(
                        mGoogleApiClient,
                        builder.build()
                );

        result.setResultCallback(this);

    }

    @Override
    public void onConnectionSuspended(int i) {

    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {

    }

    @Override
    public void onResult(@NonNull LocationSettingsResult locationSettingsResult) {
        final Status status = locationSettingsResult.getStatus();
        switch (status.getStatusCode()) {
            case LocationSettingsStatusCodes.SUCCESS:

                // NO need to show the dialog;

                break;

            case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
                //  Location settings are not satisfied. Show the user a dialog

                try {
                    // Show the dialog by calling startResolutionForResult(), and check the result
                    // in onActivityResult().

                    status.startResolutionForResult(LocSettingsActivity.this, REQUEST_CHECK_SETTINGS);

                } catch (IntentSender.SendIntentException e) {

                    //failed to show
                }
                break;

            case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE:
                // Location settings are unavailable so not possible to show any dialog now
                break;
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == REQUEST_CHECK_SETTINGS) {

            if (resultCode == RESULT_OK) {

                Toast.makeText(getApplicationContext(), "GPS enabled", Toast.LENGTH_LONG).show();
            } else {

                Toast.makeText(getApplicationContext(), "GPS is not enabled", Toast.LENGTH_LONG).show();
            }

        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:23.0.1'
    compile 'com.google.android.gms:play-services-location:8.4.0'
}

Answer 3

您需要使用最新版本的Google Play服务。最新版本有一个对话框，可以激活获取GPS所需的所有内容。

从Android开发者播放服务留档，

位置设置-虽然FusedLocationProviderApi结合了多个传感器为您提供最佳位置，但您的应用程序接收到的位置的准确性仍然在很大程度上取决于设备上启用的设置（GPS、wifi、飞行模式等）。使用新的SettinsApi类，您可以打开一个位置设置对话框，该对话框显示一个一键式控件，供用户在不离开您的应用程序的情况下更改他们的设置。

链接指向播放服务版本文档。版本7.0引入了此新提示。