android连接到网络监听器背景

Question

在版本 (7.0) 之后执行此操作的最佳方法是什么 我正在使用“BroadcastReceiver”执行此操作，但在版本（7.0）之后开始出现问题 我尝试使用“GcmTaskService”和“JobScheduler” 但是我没有找到正确的方法。 谁能帮帮我？

Answer 1

RxAndroid (https://github.com/ReactiveX/RxAndroid) 为响应异步进程提供了非常有用的工具。

具体与网络连接有关，您可以使用内置的 android NetworkManager 和 WifiConfiguration 开始连接，并使用 RxAndroid ReactiveNetwork 静态方法观察连接。

WifiConfiguration wifiConfig = new WifiConfiguration();
conf.ssid = "\"SecureNetwork\"" //Note that quote characters are required in the SSID
conf.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);

WifiManager wifiManger = (WifiManager) appContext.getSystemService(Context.WIFI_SERVICE);
if (wifiManager == null) {
    //error handling - make sure you have permissions etc
}

int connectionId = wifiManager.addNetwork(conf);
if (connectionId == -1) {
    //Network is already configured - find configuration using wifiManger.getConfiguredNetworks();
}

wifiManager.enableNetwork(connectionId, true); //Attempt to connect to network

//Now use RxAndroid ReactiveNetwork to observe connectivity

ReactiveNetwork.observeNetworkConnectivity(context)
    .filter(ConnectivityPredicate.hasState(NetworkInfo.State.CONNECTED))
    .filter(ConnectivityPredicate.hasType(ConnectivityManager.TYPE_WIFI))
    .flatMap(connectivity -> {
        int currentNetId = wifiManager.getConnectionInfo().getNetworkId();
        if (currentNetId == connectionNetId) {
             return Observable.just(true);
        } else {
             return Observable.error("Not connected to new network")
        }
    .doOnNext(mBoolean -> //Do whatever you want to now that you are connect)
    .doOnError(mError ->> //Handle error)
    .suscribe();