如何正确提示用户开启“提高定位精度”设置？

Posted 2023-04-14

【中文标题】如何正确提示用户开启“提高定位精度”设置？

【英文标题】：How to correctly prompt a user to turn on "Improve Location Accuracy" setting?

【发布时间】：2019-11-11 18:47:36

【问题描述】：

我的应用程序要求用户在其设置中启用改进的位置准确性。不幸的是，我无法找出正确的方法来实际进入正确的菜单，并在设置完成后让后退按钮返回到我的应用程序。

这是我所拥有的：

    private fun checkLocationSettingsAsync() 
        viewModel.launch(Dispatchers.IO) 
            val locationSettings = client.checkLocationSettings(
                locationBuilder.build()
            ).asDeferred()

            locationSettings.asTask().addOnSuccessListener 
                //location settings are already high accuracy
                locationSettingsOkay = true
            .addOnFailureListener  e ->
                if (e is ResolvableApiException) 
                    //location settings not satisfied, request to make them higher
                    runCatching 
                        val intent = Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS)
                        startActivityForResult(intent, LOCATION_ACCURACY_ACCESS_CODE)
                    .onFailure 
                        println(it.stackTrace)
                    
                
            

            locationSettings.await()
        
    

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) 
        super.onActivityResult(requestCode, resultCode, data)
        when (requestCode) 
            LOCATION_ACCURACY_ACCESS_CODE -> 
                if (resultCode == Activity.RESULT_OK) 
                    //TODO: navigate back to activity once setting is set
                
            
        
    

Android 菜单 Settings.ACTION_LOCATION_SOURCE_SETTINGS 进入包含改进的位置精度设置的外部菜单，但我实际上无法找到正确的 Intent 名称来进入相应的菜单，我也无法获取它以便用户可以启用设置后导航回我的应用程序。

有什么建议吗？或文档，因为我找不到任何关于此的内容！

编辑：这是一个很好的代码示例！ https://github.com/googlesamples/android-play-location/blob/master/LocationUpdates/app/src/main/java/com/google/android/gms/location/sample/locationupdates/MainActivity.java

【参考方案1】：

以下代码用于提示用户更改位置设置 Click here to see full document

task.addOnSuccessListener  locationSettingsResponse ->
   // All location settings are satisfied. The client can initialize
   // location requests here.    

task.addOnFailureListener  exception ->
 if (exception is ResolvableApiException)
     // Location settings are not satisfied, but this can be fixed
     // by showing the user a dialog.
     try 
         // Show the dialog by calling startResolutionForResult(),
         // and check the result in onActivityResult().
         exception.startResolutionForResult(this@MainActivity,
                 REQUEST_CHECK_SETTINGS)
      catch (sendEx: IntentSender.SendIntentException) 
         // Ignore the error.
     
 

【讨论】：

很有帮助，谢谢！不幸的是，我正在尝试使用 startIntentSenderForResult 从片段启动分辨率，而不是 startResolutionForResult

【参考方案2】：

我是这样做的

Gps 设置不正常？

使用 显示用户“打开 Gps 对话框”

来自活动：

status.startResolutionForResult(this , REQUEST_CHECK_SETTINGS);

来自片段：

startIntentSenderForResult(status.getResolution().getIntentSender(), REQUEST_CHECK_SETTINGS, null, 0, 0, 0, null)

在onActivityResult 中查找结果

如果您请求 HIGH_ACCURACY 升级，请注意此错误

Not Able To Upgrade Gps settings to high Accuracy using FusedLocationProvider In some devices

虽然我在上次更新 Google Play 服务后没有遇到这个错误.....但是我不确定这个错误是否已经完全修复

如果 resultCode 为 RESULT_OK -> 什么也不做

如果 resultCode 是 RESULT_CANCELED -> 显示用户需要手动升级 Gps 优先级的对话框 并使用

将用户重定向到位置设置页面

Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivityForResult(intent, REQUEST_UPDATE_GPS_SETTINGS_MANUALLY);

【参考方案3】：

这可能会帮助你：

对不起，如果它是在 java 中。让我知道它是否有效。

 public static void displayPromptForEnablingGPS(final Activity activity, Context context) 
        LocationManager lm = (LocationManager) activity.getSystemService(LOCATION_SERVICE);
        if (!lm.isProviderEnabled(LocationManager.GPS_PROVIDER) ||
                !lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER)) 

            AlertDialog.Builder builder = new AlertDialog.Builder(context);
            builder.setTitle(R.string.locationTitle);
            builder.setMessage(R.string.enableLocation);
            builder.setPositiveButton(R.string.OK, new DialogInterface.OnClickListener() 
                public void onClick(DialogInterface dialogInterface, int i) 

                    Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                    activity.startActivity(intent);
                
            );
            Dialog alertDialog = builder.create();
            alertDialog.setCanceledOnTouchOutside(false);
            alertDialog.show();
        
    

【参考方案4】：

这是我在意识到我需要使用startIntentSenderForResult 而不是startResolutionForResult 后提出的解决方案，因为我是从片段中启动它的。 :-)

    private fun checkLocationSettings() 
        settingsClient.checkLocationSettings(locationSettingsRequest).addOnSuccessListener 
            //all settings satisfied!
            locationSettingsOkay = true
        .addOnFailureListener  e ->
            val statusCode = (e as ApiException).statusCode
            when (statusCode) 
                LocationSettingsStatusCodes.RESOLUTION_REQUIRED -> 
                    println("settings not good enough, attempting to upgrade them")
                    try 
                        val rae = (e as ResolvableApiException)
                        startIntentSenderForResult(
                            rae.resolution.intentSender,
                            REQUEST_CHECK_SETTINGS,
                            null, 0, 0, 0, null
                            )
                     catch (sie : IntentSender.SendIntentException) 
                        println("pending intent unable to process request")
                    
                
                LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE -> 
                    Toast.makeText(
                        [e-mail](),
                        "Location settings can't be fixed here. Try to turn on Improved Location Accuracy in settings.",
                        Toast.LENGTH_LONG
                        ).show()
                
            
        
    

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) 
        when (requestCode) 
            REQUEST_CHECK_SETTINGS -> 
                when (resultCode) 
                    Activity.RESULT_OK -> 
                        locationSettingsOkay = true
                        if (locationPermissionGranted && resultSuccess) 
                            makeButtonsReadyAndSubmitList(resultList, destinationsAdapter)
                        
                    
                    Activity.RESULT_CANCELED -> 
                        //TODO: ask for location settings again