如何使android中的发射器侦听器在互联网关闭和重新打开时工作？[副本]

Question

我已经在我的应用程序中实现了聊天设置。聊天室使用套接字工作。木卫一。我正在努力解决当互联网关闭和重新打开时发射器侦听器正常工作的问题。目前，套接字可以在internet上重新连接，但一旦重新连接internet，侦听器就无法工作。请帮帮我！

Answer 1

您可以监听连接更改并再次执行连接？

在您的舱单中：

<receiver android:name=".ConnectivityReceiver"
        android:label="NetworkConnection">
        <intent-filter>
            <action android:name="android.net.conn.CONNECTIVITY_CHANGE"/>
        </intent-filter>
    </receiver>

而ConnectivityReceiver代码类似于：

public class ConnectivityReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {

    ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();

    if ( activeNetInfo != null )
    {
         //do your reconection if it's lost
    }

}

Answer 2

利用广播接收机

<receiver android:name=".YOURRECEIVER">
   <intent-filter>
      <action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
   </intent-filter>
</receiver>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

在应用程序中添加接收器，并在收到回拨后执行操作

public class NetworkStateReceiver extends BroadcastReceiver {
    public void onReceive(Context context, Intent intent) {
     Log.d("app","Network connectivity change");
     if(intent.getExtras()!=null) {
        NetworkInfo ni=(NetworkInfo) intent.getExtras().get(ConnectivityManager.EXTRA_NETWORK_INFO);
        if(ni!=null && ni.getState()==NetworkInfo.State.CONNECTED) {
            Log.i("app","Network "+ni.getTypeName()+" connected");
        } else if(intent.getBooleanExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY,Boolean.FALSE)) {
            Log.d("app","There's no network connectivity");
        }
   }
}

检查这里