Android 双卡检查互联网连接问题

我使用此代码检查internet网络是否打开：

public boolean isNetworkOnline() {
        boolean status=false;
        try{
            ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
            NetworkInfo netInfo = cm.getNetworkInfo(0);
            if (netInfo != null && netInfo.getState()==NetworkInfo.State.CONNECTED) {
                status= true;
            }else {
                netInfo = cm.getNetworkInfo(1);
                if(netInfo!=null && netInfo.getState()==NetworkInfo.State.CONNECTED)
                    status= true;
            }
        }catch(Exception e){
            e.printStackTrace();  
            return false;
        }
        return status;

        }

---

问题是，如果您从SIM卡2使用internet 3g，这表示您没有打开internet连接。

请尝试以下代码：

public static boolean isNetworkAvailable(Context context) {
        boolean outcome = false;


        if (context != null) {
            ConnectivityManager cm = (ConnectivityManager) context
                    .getSystemService(Context.CONNECTIVITY_SERVICE);

            NetworkInfo[] networkInfos = cm.getAllNetworkInfo();

            for (NetworkInfo tempNetworkInfo : networkInfos) {

                if (tempNetworkInfo.isConnected()) {
                    outcome = true;
                    break;
                }
            }
        }

        return outcome;
    }

---

请尝试以下代码：

public static boolean isNetworkAvailable(Context context) {
        boolean outcome = false;


        if (context != null) {
            ConnectivityManager cm = (ConnectivityManager) context
                    .getSystemService(Context.CONNECTIVITY_SERVICE);

            NetworkInfo[] networkInfos = cm.getAllNetworkInfo();

            for (NetworkInfo tempNetworkInfo : networkInfos) {

                if (tempNetworkInfo.isConnected()) {
                    outcome = true;
                    break;
                }
            }
        }

        return outcome;
    }