Question

大家好我正在使用Google位置服务来获取用户位置。我使用this作为参考代码，它工作正常。但问题是使用此服务我必须在所有活动中调用位置代码，因为我需要用户位置在我的应用程序中，我不想在所有活动中冗余此代码。那么有什么方法可以在我的应用程序中使用单个代码实例来使用它。

请检查我在Sandy的回答后写的代码

public class App extends Application implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener {
@Override
public void onCreate() {
    super.onCreate();
    mRequestingLocationUpdates = false;
    mLastUpdateTime = "";
    buildGoogleApiClient();

}
protected synchronized void buildGoogleApiClient() {
    Log.i(TAG, "Building GoogleApiClient");
    mGoogleApiClient = new GoogleApiClient.Builder(this)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .addApi(LocationServices.API)
            .build();
    mGoogleApiClient.connect();
    createLocationRequest();
}
protected void createLocationRequest() {

    mLocationRequest = new LocationRequest();

    // Sets the desired interval for active location updates. This interval is
    // inexact. You may not receive updates at all if no location sources are available, or
    // you may receive them slower than requested. You may also receive updates faster than
    // requested if other applications are requesting location at a faster interval.
    mLocationRequest.setInterval(UPDATE_INTERVAL_IN_MILLISECONDS);

    // Sets the fastest rate for active location updates. This interval is exact, and your
    // application will never receive updates faster than this value.
    mLocationRequest.setFastestInterval(FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS);

    mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);

    LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder()
            .addLocationRequest(mLocationRequest);
    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();
            Log.v("=========", "=====@@@@@@===requestCode=" + status.getStatusCode());
            switch (status.getStatusCode()) {
                case LocationSettingsStatusCodes.SUCCESS:
                    // All location settings are satisfied. The client can initialize location
                    // requests here.
                    startLocUpdate();

                    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(MainActivity.this, 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;
            }
        }
    });



}

}

Answer 1

如果您尚未创建，则创建一个扩展Application类的类，然后编写所有逻辑以获取应用程序类上的位置

还在应用程序类上创建一个方法，该方法返回一个从您引用的样本中提取的位置对象

e.g。

chown -R :<designated_group> /path/to/repo.git

如有任何问题，请告诉我

在多个活动中使用google locationservices而无需冗余代码？

1 个答案: