android 檢查wifi是否打開連接

用於檢查wifi

代碼也是比較簡單的：

//是否連接WIFI
    public static boolean isWifiConnected(Context context)
    {
        ConnectivityManager connectivityManager = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo wifiNetworkInfo = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
        if(wifiNetworkInfo.isConnected())
        {
            return true ;
        }

        return false ;
    }

用法：

用if語句判斷

isWifiConnected(this)

即可