android - 仅在android中使用wifi获取当前位置

Question

当我使用 GpsProvider 时，我得到了当前位置。但只有当我使用 wifi 获取 wifi 网络时，我才需要获取当前位置。我使用 NetworProvider 来实现它，但我不能
我使用的以下代码

    public static void requestSingleUpdate(final Context context,
        final LocationCallback callback) {

    final LocationManager locationManager = (LocationManager) context
            .getSystemService(Context.LOCATION_SERVICE);

    boolean isNetworkEnabled = locationManager
            .isProviderEnabled(LocationManager.NETWORK_PROVIDER);
    if (isNetworkEnabled) {
        Criteria criteria = new Criteria();
        criteria.setAccuracy(Criteria.ACCURACY_COARSE);

        locationManager.requestSingleUpdate(criteria,
                new LocationListener() {
                    @Override
                    public void onLocationChanged(Location location) {
                        callback.onNewLocationAvailable(location);
                    }

                    @Override
                    public void onStatusChanged(String provider,
                            int status, Bundle extras) {
                    }

                    @Override
                    public void onProviderEnabled(String provider) {
                    }

                    @Override
                    public void onProviderDisabled(String provider) {
                    }
                }, null);}  

我的许可如下。

 <uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.VIBRATE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
 <!-- Network State Permissions -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />\
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE"/>
<uses-permission android:name="android.permission.WRITE_SETTINGS"/>
<uses-permission     android:name="android.permission.ACCESS_COARSE_LOCATION"/>

谢谢:)

Answer 1

检查 WiFi 是否启用:-

WifiManager wifi = (WifiManager)getSystemService(Context.WIFI_SERVICE);
if (wifi.isWifiEnabled()){
//wifi is enabled
}