发现网络时如何将数据上传到服务器？

Question

我基于网络连接的android应用程序，当我的手机连接到互联网时它工作正常，但是当互联网连接断开时它停止工作（肥胖），没有自动连接。

我想在互联网可用时将数据放到服务器上。

任何帮助都会对我有所帮助。

NetworkBroadcastReceiver.java

public class NetworkBroadcastReceiver extends BroadcastReceiver {
private static ConnectivityManager mConnectivityManager;

public NetworkBroadcastReceiver() {
}

@Override
public void onReceive(Context context, Intent intent) {
    // TODO: This method is called when the BroadcastReceiver is receiving
    // an Intent broadcast.
    if (isNetworkAvailable(context))
        Toast.makeText(context, "Connected", Toast.LENGTH_LONG).show();
    else
        Toast.makeText(context, "Not Connected", Toast.LENGTH_LONG).show();
}

/**
 *
 * @param context
 * @return
 */
public static boolean isNetworkAvailable(Context context) {
    boolean isMobile = false;
    boolean isWifi = false;

    NetworkInfo[] infoAvailableNetworks = getConnectivityManager(context).getAllNetworkInfo();

    if (infoAvailableNetworks != null) {
        for (NetworkInfo network : infoAvailableNetworks) {

            if (network.getType() == ConnectivityManager.TYPE_WIFI) {
                if (network.isConnected() && network.isAvailable())
                    isWifi = true;
            }
            if (network.getType() == ConnectivityManager.TYPE_MOBILE) {
                if (network.isConnected() && network.isAvailable())
                    isMobile = true;
            }
        }
    }

    return isMobile || isWifi;
}

/**
 * Return connectivity manager instance.
 * @return mConnectivityManager
 */
public static ConnectivityManager getConnectivityManager(Context context) {

    if (mConnectivityManager == null) {
        mConnectivityManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
    }

    return mConnectivityManager;
}

}

Manifest.xml

<receiver
        android:name=".receiver.NetworkBroadcastReceiver"
        android:enabled="true"
        android:exported="true" >
        <intent-filter>
            <action android:name="android.net.conn.CONNECTIVITY_CHANGE"/>
            <action android:name="android.net.wifi.WIFI_STATE_CHANGED"/>
        </intent-filter>
    </receiver>

Answer 1

要检查网络状态，请确保您已在清单中声明 ACCESS_NETWORK_STATE 权限

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