检查Android上是否可以访问互联网

我如何检查互联网是否有。但我发现这个代码，但当wifi连接它返回真的，但我知道，没有互联网。没有互联网接入

 public boolean chechInternet_con(){
    ConnectivityManager connec = (ConnectivityManager)
    context.getSystemService(Context.CONNECTIVITY_SERVICE);
    android.net.NetworkInfo wifi =connec.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
    android.net.NetworkInfo mobile = connec.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);

    // Here if condition check for wifi and mobile network is available or not.
    // If anyone of them is available or connected then it will return true, otherwise false;

    if (wifi.isConnected() || mobile.isConnected()) {
        return true;
    } 
    return false;

}

试试这个

public boolean isInternetOn(Context ctx) {
        this.mContext = ctx;
        ConnectivityManager Connect_Manager = (ConnectivityManager) mContext
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        State connected = NetworkInfo.State.CONNECTED;
        State connecting = NetworkInfo.State.CONNECTING;
        State disconnected = NetworkInfo.State.DISCONNECTED;

        State info0 = Connect_Manager.getNetworkInfo(0).getState();
        State info1 = Connect_Manager.getNetworkInfo(1).getState();

        // ARE WE CONNECTED TO THE NET
        if (info0 == connected || info0 == connecting || info1 == connecting
                || info1 == connected) {

            Log.d("Internet", "Connected");
            return true;
        } else if (info0 == disconnected || info1 == disconnected) {
            Log.d("Internet", "DisConnected");
            return false;
        }
        return false;
    }

试试这个

public boolean isInternetOn(Context ctx) {
        this.mContext = ctx;
        ConnectivityManager Connect_Manager = (ConnectivityManager) mContext
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        State connected = NetworkInfo.State.CONNECTED;
        State connecting = NetworkInfo.State.CONNECTING;
        State disconnected = NetworkInfo.State.DISCONNECTED;

        State info0 = Connect_Manager.getNetworkInfo(0).getState();
        State info1 = Connect_Manager.getNetworkInfo(1).getState();

        // ARE WE CONNECTED TO THE NET
        if (info0 == connected || info0 == connecting || info1 == connecting
                || info1 == connected) {

            Log.d("Internet", "Connected");
            return true;
        } else if (info0 == disconnected || info1 == disconnected) {
            Log.d("Internet", "DisConnected");
            return false;
        }
        return false;
    }

请参阅下面的代码

    public static boolean checkConnection(Context context) {

    final ConnectivityManager mConnectivityManager = (ConnectivityManager) context
            .getSystemService(Context.CONNECTIVITY_SERVICE);

    final NetworkInfo netInfo = mConnectivityManager.getActiveNetworkInfo();
    if (netInfo != null && netInfo.isConnectedOrConnecting()) {
        return true;
    } else
        return false;
}

请参阅下面的代码

    public static boolean checkConnection(Context context) {

    final ConnectivityManager mConnectivityManager = (ConnectivityManager) context
            .getSystemService(Context.CONNECTIVITY_SERVICE);

    final NetworkInfo netInfo = mConnectivityManager.getActiveNetworkInfo();
    if (netInfo != null && netInfo.isConnectedOrConnecting()) {
        return true;
    } else
        return false;
}

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因此，它连接到wi-fi网络，但没有互联网接入。对吧?

尝试ping 8.8.8.8或google.com以了解是否有互联网接入。

---

将帮助您。

因此，它已连接到wi-fi网络，但无法访问internet。对吧?

尝试ping 8.8.8.8或google.com以了解是否有互联网接入。

---

将对您有所帮助。

您是否在设备中测试了您的代码？已回答此问题。请检查此链接您是否在设备中测试了您的代码？已回答此问题。请检查此链接您是否可以从“if”中删除此info0==连接| | info1==连接条件，然后检查？我的设备已连接到wifi，但无法访问internet，我无法进入网站：（您是否可以从“如果”中删除此info0==连接| | info1==连接条件，然后检查？我的设备已连接到wifi但没有internet访问，我无法进入网站：（谢谢，但您仅检查连接或连接，但我的设备已连接到wifi但没有internet访问。我的意思是我无法进入任何网站：（谢谢，但您只检查了已连接或正在连接，但我的设备已连接到wifi，但无法访问互联网。我的意思是我无法进入任何网站：(