無法讀取未定義的屬性「連接」。在科爾多瓦3.2.0

Question

我無法檢查連接狀態。我已經成功添加插件org.apache.facebook.networkinformation。但是我仍然有錯誤。

<script type="text/javascript" src="cordova.js"></script> 
<script src="js/Connection.js"></script> 
<script src="js/network.js"></script> 
<script type="text/javascript" charset="utf-8"> 

    document.addEventListener("deviceready", onDeviceReady(), false); 


    function onDeviceReady() { 
     alert(navigator.network.connection.type); 
     alert(1); 
    } 


    function checkConnection() { 

     alert(navigator.network.connection.type); 
     var networkConnectionType = navigator.network.connection.type; 

     var states = {}; 
     states[Connection.UNKNOWN] = 'Unknown connection'; 
     states[Connection.ETHERNET] = 'Ethernet connection'; 
     states[Connection.WIFI] = 'WiFi connection'; 
     states[Connection.CELL_2G] = 'Cell 2G connection'; 
     states[Connection.CELL_3G] = 'Cell 3G connection'; 
     states[Connection.CELL_4G] = 'Cell 4G connection'; 
     states[Connection.NONE] = 'No network connection'; 
     alert('Connection Type: ' + states[networkConnectionType]); 
    } 

</script> 

Answer 1

我剛剛檢查了你的代碼，我覺得有些壞了。試試這個腳本，告訴我，如果它適合你！

function checkConnection() { 
    var networkState = navigator.connection.type; 

    var states = {}; 
    states[Connection.UNKNOWN] = 'Unknown connection'; 
    states[Connection.ETHERNET] = 'Ethernet connection'; 
    states[Connection.WIFI]  = 'WiFi connection'; 
    states[Connection.CELL_2G] = 'Cell 2G connection'; 
    states[Connection.CELL_3G] = 'Cell 3G connection'; 
    states[Connection.CELL_4G] = 'Cell 4G connection'; 
    states[Connection.CELL]  = 'Cell generic connection'; 
    states[Connection.NONE]  = 'No network connection'; 

    alert('Connection type: ' + states[networkState]); 
} 

checkConnection(); 

，並在您的HTML代碼，你可以把一個按鈕狀 - >

<input type="button" onclick="checkConnection();"> 

，因爲用戶的編輯評論

document.addEventListener("deviceready", onDeviceReady, false); 


function onDeviceReady { 
    var networkState = navigator.connection.type; 

    var states = {}; 
    states[Connection.UNKNOWN] = 'Unknown connection'; 
    states[Connection.ETHERNET] = 'Ethernet connection'; 
    states[Connection.WIFI]  = 'WiFi connection'; 
    states[Connection.CELL_2G] = 'Cell 2G connection'; 
    states[Connection.CELL_3G] = 'Cell 3G connection'; 
    states[Connection.CELL_4G] = 'Cell 4G connection'; 
    states[Connection.CELL]  = 'Cell generic connection'; 
    states[Connection.NONE]  = 'No network connection'; 

    alert('Connection type: ' + states[networkState]); 
}