在片段中开始分辨率结果

Question

如果用户没有打开位置功能，我的应用程序会提示一个对话框，并尝试通过覆盖onActivityResult方法返回结果（可能不正确）。

由于这是在一个片段内部，所以不确定会有什么变化：

这是我如何使用startResolutionForResult方法调用对话框的：

public void checkDeviceLocationIsOn()
        {
            System.out.println("Test running setting request" );
            LocationRequest locationRequest = LocationRequest.create();
            locationRequest.setPriority(LocationRequest.PRIORITY_LOW_POWER);
            LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder()
                    .addLocationRequest(locationRequest);
            builder.setAlwaysShow(true); //this is the key ingredient

            PendingResult<LocationSettingsResult> result =
                    LocationServices.SettingsApi.checkLocationSettings(mGoogleApiClient, 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.
                            System.out.println("Test setting all fine starting location request" );
                            getLocation();
                            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(), LOCATION_SETTINGS_REQUEST_CODE);
                                System.out.println("Test setting not met starting dialog to prompt user" );
                            } 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;
                    }
                }
            });
        }

然后我尝试像下面这样获取结果（这个从来没有被调用）：

   @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        switch (requestCode) {
        // Check for the integer request code originally supplied to startResolutionForResult().
            case LOCATION_SETTINGS_REQUEST_CODE:
                switch (resultCode) {
                    case Activity.RESULT_OK:
                        System.out.println("test user has turned the gps back on");
                        getLocation();
                        break;
                    case Activity.RESULT_CANCELED:

                        System.out.println("test user has denied the gps to be turned on");
                        Toast.makeText(getActivity(), "Location is required to order stations", Toast.LENGTH_SHORT).show();
                        break;
                }
                break;
        }
    }

感谢您的帮助！

- Nicholas Muir

---

你为什么要使用 System.out.println() 而不是 Android 的 Log 类？https://developer.android.com/reference/android/util/Log.html - AdamMc331

因为这是为了我的个人测试目的。 - Nicholas Muir

你有找到任何解决方案吗？我也遇到了同样的问题 :( - r4jiv007

这个问题已经在这里得到了回答：https://dev59.com/z10Z5IYBdhLWcg3wpRhW#39579124 - Ali Nem

@AliNematiHayati，不确定您在想什么，但这个问题已经被问了一年以上。 - Nicholas Muir

Answer 1

使用 fragment 方法调用：

startIntentSenderForResult(status.getResolution().getIntentSender(), REQUEST_CODE_LOCATION_SETTING, null, 0, 0, 0, null);

而不是：

status.startResolutionForResult(...)

- Badhrinath Canessane

---

没有比 Google 的 API 更稳定的了。岁月流逝，一切仍然如此实际 xD。 - Karol Kulbaka

有趣，这个方法可行，但您能否提供更多为什么要使用它的信息？只是想了解一下。谢谢！ - Notron

Answer 2

为了在你的片段中启动结果分辨率，你需要使用新的API。

首先，创建ActivityResultLanucher。

private val resolutionForResult =
    registerForActivityResult(ActivityResultContracts.StartIntentSenderForResult()) { activityResult ->
        if (activityResult.resultCode == RESULT_OK)
            //startLocationUpdates() or do whatever you want
        else {
            showMessage("we can't determine your location")
        }
    }

然后像这样使用它。

val intentSenderRequest = IntentSenderRequest.Builder(exception.resolution).build()
resolutionForResult.launch(intentSenderRequest)

- Amr

---

工作得很好，谢谢 :) - Nero

Answer 3

在超级活动中执行此方法...

在主活动中

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
    final int REQUEST_CHECK_SETTINGS = 100;//check GPS setting
    Log.d("onActivityResult()", Integer.toString(resultCode));

    //final LocationSettingsStates states = LocationSettingsStates.fromIntent(data);
    switch (requestCode)
    {
        case REQUEST_CHECK_SETTINGS:
            switch (resultCode)
            {
                case Activity.RESULT_OK:
                {
                    // All required changes were successfully made
                    Toast.makeText(this, "Location enabled by user!", Toast.LENGTH_LONG).show();
                    ContactFragment.isGPSEnabled=true;
                    ContactFragment.click();
                    break;
                }
                case Activity.RESULT_CANCELED:
                {
                    // The user was asked to change settings, but chose not to
                    Toast.makeText(this, "Location not enabled, user cancelled.", Toast.LENGTH_LONG).show();
                    ContactFragment.isGPSEnabled=false;
                    break;
                }
                default:
                {
                    break;
                }
            }
            break;
    }

}

在 ContactFragment 内部。

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

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

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

    result = LocationServices.SettingsApi.checkLocationSettings(googleApiClient, builder.build());
    result.setResultCallback(this);
}
  @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(),
                        REQUEST_CHECK_SETTINGS);
            } 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;
    }
}

- aj dodiya

Answer 4

也许一个简单的解决方案是使用两个活动，并通过在清单上使用任何对话框主题之一显示其中一个。

<activity
        android:name=".LocationDialogActivity"
        android:theme="@style/DialogStyle"></activity>

只需像往常一样使用onActivityResult。

DialogActivity

 private void setLocation() {
    Intent intentResult = new Intent();
    intentResult.putExtra("latitude", "valueLat");
    intentResult.putExtra("longitude", "valueLon");
    setResult(RESULT_OK, intentResult);
    finish();
}

主活动

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

        if (resultCode == RESULT_OK) {
            /*Take your data*/
            latitude = data.getExtras().getString("latitude");
            longitude = data.getExtras().getString("longitude");
        }
}

- Firestone Seven