在phonegap應用程序中檢測到網絡連接速度慢

Question

我可以在我的phonegap應用程序中使用navigator.network.connection.type但沒有連接時速度慢（幾乎不存在）時檢查檢測這種情況使用任何jQuery/JavaScript代碼？

Answer 1

你可以使用setTimeout()設置的最大時間的請求：

var timeout; 
var xhr = $.ajax({ 
    type: "GET", 
    url: "http://myservice.com/jsonp", 
    data: data, 
    success: function(msg){ 
     // All went OK 
     if(timeout != null) clearTimeout(timeout); 
    } 
}); 

timeout = setTimeout(function() { 
    // Request took >= 10 seconds 
    // We could kill it? 
    xhr.abort(); 
    // Or send a message to the user and ask whether they want to continue 
    if(!confirm("Network connection is taking longer than usual to complete. Continue waiting?")) { 
     xhr.abort(); 
    } 
}, 10000);