EXTJS学习（二）Message
上一节简单介绍了下EXTJS，接下来学习其中的消息类
这里面有以下几个方法
1.Alert
alert(
String title, String msg, [Function fn], [Object scope] ) : 这里面后面两个参数是非必须的，以下是例子
Ext.MessageBox.alert('Status', 'Changes saved successfully.', showResult);
function showResult(btn){
Ext.Msg('Button Click', btn);
};
2.confirm
confirm(
String title, String msg, [Function fn], [Object scope] ) : 这里的用法和alert相似
Ext.MessageBox.confirm('Confirm', 'Are you sure you want to do that?', showResult);
function showResult(btn){
Ext.Msg('Button Click', btn);
};
3.Prompt
prompt(
String title, String msg, [Function fn], [Object scope], [Boolean/Number multiline] ) : Ext.MessageBox Ext.MessageBox.prompt('Name', 'Please enter your name:', showResultText);
function showResultText(btn, text){
Ext.Msg('Button Click', text);
};
其中第一个参数是按钮的参数，第二个参数是传递的值，也就是输入之后得到的值
4.Multi-line Prompt
Ext.MessageBox.show({
title: 'Address',
msg: 'Please enter your address:',
width:300,
buttons: Ext.MessageBox.OKCANCEL,
multiline: true,
fn: showResultText,
animEl: 'mb3',
icon: Ext.MessageBox.QUESTION
});
function showResultText(btn, text){
Ext.Msg('Button Click', text);
};
其中title是显示的标题，msg是现实的提示消息，width是输入框的宽度，button这里是消息框中显示的按钮，multiline是否多行输入，fn处理函数,icon显示的图标
5.Yes/No/Cancel
Ext.MessageBox.show({
title:'Save Changes?',
msg: 'You are closing a tab that has unsaved changes. <br />Would you like to save your changes?',
buttons: Ext.MessageBox.YESNOCANCEL,
fn: showResult,
animEl: 'mb4',
icon: Ext.MessageBox.QUESTION
});
6.Progress Dialog
Ext.MessageBox.show({
title: 'Please wait',
msg: 'Loading items...',
progressText: 'Initializing...',
width:300,
progress:true,
closable:false,
animEl: 'mb6'
});
// this hideous block creates the bogus progress
var f = function(v){
return function(){
if(v == 12){
Ext.MessageBox.hide();
Ext.example.msg('Done', 'Your fake items were loaded!');
}else{
var i = v/11;
Ext.MessageBox.updateProgress(i, Math.round(100*i)+'% completed');
}
};
};
for(var i = 1; i < 13; i++){
setTimeout(f(i), i*500);
}
下面的一部分是采用定时来刷新进度条，以及显示进度条
7.Wait Dialog
Ext.MessageBox.show({
msg: 'Saving your data, please wait...',
progressText: 'Saving...',
width:300,
wait:true,
waitConfig: {interval:200},
icon:'ext-mb-download', //custom class in msg-box.html
animEl: 'mb7'
});
setTimeout(function(){
//This simulates a long-running operation like a database save or XHR call.
//In real code, this would be in a callback function.
Ext.MessageBox.hide();
Ext.example.msg('Done', 'Your fake data was saved!');
}, 8000);
警告里面大概就是这些了，更多的信息可以参考官方的文档
