Javascript 在脱机事件phonegap应用程序中显示div

我正在使用phonegap创建webview应用程序
我使用iframe方法来获取我的网站

<iframe src="http://www.google.com" id="iframe"></iframe>

反正也不行 我复习了几十个主题，但不适合我

我也试过这个，但不起作用

// offline event
function checkConnection() {
           var networkState = 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';

           return networkState;

       }

function onDeviceReady() {
       var networkState = checkConnection();
    /* load local files if there is not network connection */
                  if (networkState == Connection.NONE) {
                      window.location="offline.html"; 
                  } 
     }

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你检查过启动的onOffline（）函数了吗？@AliEsmaeili如何检查，这是我第一个使用phonegap的项目

// offline event
function checkConnection() {
           var networkState = 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';

           return networkState;

       }

function onDeviceReady() {
       var networkState = checkConnection();
    /* load local files if there is not network connection */
                  if (networkState == Connection.NONE) {
                      window.location="offline.html"; 
                  } 
     }