Question

我有这个Android应用程序，它做某些需要在线连接的东西，但如果手机没有连接到互联网，我想发送到在线数据库的条目保存在sqlite表中。我的问题是，一旦手机连接到互联网，我该如何重新发送这些条目，我应该搜索哪些主题？

Answer 1

尝试使用BroadcastReceiver监控手机的互联网状态。

public class MyReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo mobile = manager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
        NetworkInfo wifi = manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
        NetworkInfo active = manager.getActiveNetworkInfo();
        if(active == null) { //no internet

        }
        if(mobile.isConnected()) { //mobile connetcion

        }
        if(wifi.isConnected()) { //wifi connetcion

        }
}

}

AndroidManifest.xml中的

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>

<application

...

<receiver android:name=".MyReceiver">
    <intent-filter>
        <action android:name="android.net.conn.CONNECTIVITY_CHANGE"/>
    </intent-filter>
</receiver>
</application>

网络连接服务

1 个答案: