ExtJS布局详解-优快云博客

本文链接：https://blog.youkuaiyun.com/J2EE_dev/article/details/4437961

关键字: extjs layout 总结 extjs 的容器组件都可以设置它的显示风格，它的有效值有 absolute, accordion, anchor, border, card, column, fit, form and table. 一共9种。简单总结一下，帮助记忆。
[list]

absolute
顾名思义，在容器内部，根据指定的坐标定位显示
accordion

这个是最容易记的，手风琴效果

Java代码

Ext.OnReady(function(){
var panel=new Ext.Panel( //Ext.formPanel就是Panel中用了form布局
{
renderTo:'paneldiv' ,
title:'容器组件' ,
layout :'accordion' ,
width:500 ,
height:200 ,
layoutConfig:{animate:false },
items:[
{title:'元素1' ,html: '' },
{title:'元素2' ,html: '' },
{title:'元素3' ,html: '' },
{title:'元素4' ,html: '' }
]
}
);
});

Ext.OnReady(function(){
var panel=new Ext.Panel(//Ext.formPanel就是Panel中用了form布局
      {
       renderTo:'paneldiv',
       title:'容器组件',
       layout
:'accordion',       
       width:500,
       height:200,
       layoutConfig:{animate:false},
       items:[
        {title:'元素1',html:''},
        {title:'元素2',html:''},
        {title:'元素3',html:''},
        {title:'元素4',html:''}
       ]
      }
     );
});

anchor

这个效果具体还不知道有什么用，就是知道注意一下
1.容器内的组件要么指定宽度，要么在anchor中同时指定高/宽，
2.anchor值通常只能为负值(指非百分比值)，正值没有意义，
3.anchor必须为字符串值

Java代码

Ext.onReady(function() {
var panel1 = new Ext.Panel({
title: "panel1" ,
height: 100 ,
anchor: '-50' ,
html: "高度等于100，宽度=容器宽度-50"
});
var panel2 = new Ext.Panel({
title: "panel2" ,
height: 100 ,
anchor: '50%' ,
html: "高度等于100,宽度=容器宽度的50%"
});
var panel3 = new Ext.Panel({
title: "panel3" ,
anchor: '-10, -250' ,
html: "宽度=容器宽度-10,高度=容器宽度-250"
});
var win = new Ext.Window({
title: "Anchor Layout " ,
height: 400 ,
width: 400 ,
plain: true ,
layout : 'anchor' ,
items: [panel1, panel2,panel3]
});
win.show();
});

Ext.onReady(function() {
        var panel1 = new Ext.Panel({
            title: "panel1",
            height: 100,
            anchor: '-50',
            html: "高度等于100，宽度=容器宽度-50"
        });

        var panel2 = new Ext.Panel({
            title: "panel2",
            height: 100,
            anchor: '50%',
            html: "高度等于100,宽度=容器宽度的50%"

        });

        var panel3 = new Ext.Panel({
            title: "panel3",
            anchor: '-10, -250',
            html: "宽度=容器宽度-10,高度=容器宽度-250"

        });

        var win = new Ext.Window({
            title: "Anchor Layout
",
            height: 400,
            width: 400,
            plain: true,                    
            layout
: 'anchor',
            items: [panel1, panel2,panel3]            
        });
        win.show();
    });

border

将容器分为五个区域:east,south,west,north,center

Java代码

Ext.onReady(function() {
var button = Ext.get('show-btn' );
var win;
button.on('click' , function() {
//创建TabPanel
var tabs = new Ext.TabPanel({
region: 'center' , //border布局，将页面分成东，南，西，北，中五部分，这里表示TabPanel放在中间
margins: '3 3 3 0' ,
activeTab: 0 ,
defaults: {
autoScroll: true
},
items: [{
title: 'Bogus Tab' ,
html: "第一个Tab的内容."
}, {
title: 'Another Tab' ,
html: "我是另一个Tab"
}, {
title: 'Closable Tab' ,
html: "这是一个可以关闭的Tab" ,
closable: true
}]
});
//定义一个Panel
var nav = new Ext.Panel({
title: 'Navigation' ,
region: 'west' , //放在西边，即左侧
split: true ,
width: 200 ,
collapsible: true , //允许伸缩
margins: '3 0 3 3' ,
cmargins: '3 3 3 3'
});
//如果窗口第一次被打开时才创建
if (!win) {
win = new Ext.Window({
title: 'Layout Window' ,
closable: true ,
width: 600 ,
height: 350 ,
border : false ,
plain: true ,
layout : 'border' ,
closeAction:'hide' ,
items: [nav, tabs]//把上面创建的panel和TabPanel放在window中，并采用border方式布局
});
}
win.show(button);
});
});

 Ext.onReady(function() {     

        var button = Ext.get('show-btn');
        var win;
        
        button.on('click', function() {

            //创建TabPanel
            var tabs = new Ext.TabPanel({
                region: 'center', //border布局，将页面分成东，南，西，北，中五部分，这里表示TabPanel放在中间
                margins: '3 3 3 0',
                activeTab: 0,
                defaults: {
                    autoScroll: true
                },
                items: [{
                    title: 'Bogus Tab',
                    html: "第一个Tab的内容."
                }, {
                    title: 'Another Tab',
                    html: "我是另一个Tab"
                }, {
                    title: 'Closable Tab',
                    html: "这是一个可以关闭的Tab",
                    closable: true
}]
                });

                //定义一个Panel
                var nav = new Ext.Panel({
                    title: 'Navigation',
                    region: 'west', //放在西边，即左侧
                    split: true,
                    width: 200,
                    collapsible: true, //允许伸缩
                    margins: '3 0 3 3',
                    cmargins: '3 3 3 3'
                });

                //如果窗口第一次被打开时才创建
                if (!win) {
                    win = new Ext.Window({
                        title: 'Layout
 Window',
                        closable: true,
                        width: 600,
                        height: 350,
                        border : false,
                        plain: true,
                        layout
: 'border',
                        closeAction:'hide',
                        items: [nav, tabs]//把上面创建的panel和TabPanel放在window中，并采用border方式布局
                    });
                }
                win.show(button);
            });
        });

card

像安装向导一样，一张一张显示

Java代码

Ext.onReady(function() {
var i = 0 ;
var navHandler = function(direction) {
if (direction == - 1 ) {
i--;
if (i < 0 ) { i = 0 ; }
}
if (direction == 1 ) {
i++;
if (i > 2 ) { i = 2 ; return false ; }
}
var btnNext = Ext.get("move-next" ).dom.document.getElementsByTagName( "button" )[ 1 ];
var btnBack = Ext.get("move-next" ).dom.document.getElementsByTagName( "button" )[ 0 ];
if (i == 0 ) {
btnBack.disabled = true ;
}
else {
btnBack.disabled = false ;
}
if (i == 2 ) {
btnNext.value = "完成" ;
btnNext.disabled = true ;
}
else {
btnNext.value = "下一步" ;
btnNext.disabled = false ;
}
card.getLayout().setActiveItem(i);
};
var card = new Ext.Panel({
width: 200 ,
height: 200 ,
title: '注册向导' ,
layout : 'card' ,
activeItem: 0 , // make sure the active item is set on the container config!
bodyStyle: 'padding:15px' ,
defaults: {
border: false
},
bbar: [
{
id: 'move-prev' ,
text: '上一步' ,
handler: navHandler.createDelegate(this , [- 1 ])
},
'->' ,
{
id: 'move-next' ,
text: '下一步' ,
handler: navHandler.createDelegate(this , [ 1 ])
}
],
items: [{
id: 'card-0' ,
html: '<h1>欢迎来到注册向导!</h1><p>Step 1 of 3</p>'
}, {
id: 'card-1' ,
html: '<h1>请填写注册资料!</h1><p>Step 2 of 3</p>'
}, {
id: 'card-2' ,
html: '<h1>注册成功!</h1><p>Step 3 of 3 - Complete</p>'
}],
renderTo: "container"
});
});

Ext.onReady(function() {

        var i = 0;

        var navHandler = function(direction) {
            if (direction == -1) {
                i--;
                if (i < 0) { i = 0; }
            }

            if (direction == 1) {
                i++;
                if (i > 2) { i = 2; return false; }
            }


            var btnNext = Ext.get("move-next").dom.document.getElementsByTagName("button")[1];
            var btnBack = Ext.get("move-next").dom.document.getElementsByTagName("button")[0];

            if (i == 0) {
                btnBack.disabled = true;
            }
            else {
                btnBack.disabled = false;
            }

            if (i == 2) {
                btnNext.value = "完成";
                btnNext.disabled = true;
            }
            else {
                btnNext.value = "下一步";
                btnNext.disabled = false;
            }

            card.getLayout().setActiveItem(i);

        };


        var card = new Ext.Panel({
            width: 200,
            height: 200,
            title: '注册向导',
            layout
: 'card',
            activeItem: 0, // make sure the active item is set on the container config!
            bodyStyle: 'padding:15px',
            defaults: {
                border: false
            },
            bbar: [
                {
                    id: 'move-prev',
                    text: '上一步',
                    handler: navHandler.createDelegate(this, [-1])                    
                },
                '->',
                {
                    id: 'move-next',
                    text: '下一步',
                    handler: navHandler.createDelegate(this, [1])
                }
            ],

            items: [{
                id: 'card-0',
                html: '<h1>欢迎来到注册向导!</h1><p>Step 1 of 3</p>'
            }, {
                id: 'card-1',
                html: '<h1>请填写注册资料!</h1><p>Step 2 of 3</p>'
            }, {
                id: 'card-2',
                html: '<h1>注册成功!</h1><p>Step 3 of 3 - Complete</p>'
}],

                renderTo: "container"
            });



        });

column

把整个容器看成一列,然后向容器放入子元素时

Java代码

Ext.onReady(function() {
var win = new Ext.Window({
title: "Column Layout " ,
height: 300 ,
width: 400 ,
plain: true ,
layout : 'column' ,
items: [{
title:"width=50%" ,
columnWidth:0.5 ,
html:"width=(容器宽度-容器内其它组件固定宽度)*50%" ,
height:200
},
{
title:"width=250px" ,
width: 200 ,
height:100 ,
html:"固定宽度为250px"
}
]
});
win.show();
});

Ext.onReady(function() {
        var win = new Ext.Window({
            title: "Column Layout
",
            height: 300,
            width: 400,
            plain: true,
            layout
: 'column',
            items: [{
                title:"width=50%",
                columnWidth:0.5,
                html:"width=(容器宽度-容器内其它组件固定宽度)*50%",
                height:200
            },
            {
                title:"width=250px",
                width: 200,
                height:100,
                html:"固定宽度为250px"
            }            
            ]
        });
        win.show();
    });

一个子元素将充满整个容器（如果多个子元素则只有一个元素充满整个容器）

Java代码

Ext.OnReady(function(){
var panel=new Ext.Panel(
{
renderTo:'paneldiv' ,
title:'容器组件' ,
layout :'fit' ,
width:500 ,
height:100 ,
items:[
{title:'子元素1' },
{title:'子元素2' },
{title:'子元素3' },
{title:'子元素4' },
{title:'子元素5' }
]
}
);
});

Ext.OnReady(function(){
var panel=new Ext.Panel(
      {
       renderTo:'paneldiv',
       title:'容器组件',
       layout
:'fit',
       width:500,
       height:100,
       items:[
        {title:'子元素1'},
        {title:'子元素2'},
        {title:'子元素3'},
        {title:'子元素4'},
        {title:'子元素5'}
       ]
      }
     );
});

form

是一种专门用于管理表单中输入字段的布局

Java代码

Ext.onReady(function() {
var win = new Ext.Window({
title: "form Layout " ,
height: 150 ,
width: 230 ,
plain: true ,
bodyStyle: 'padding:15px' ,
items:
{
xtype: "form" ,
labelWidth: 30 ,
defaultType: "textfield" ,
frame:true ,
items:
[
{
fieldLabel:"姓名" ,
name:"username" ,
allowBlank:false
},
{
fieldLabel:"呢称" ,
name:"nickname"
},
{
fieldLabel: "生日" ,
xtype:'datefield' ,
name: "birthday" ,
width:127
}
]
}
});
win.show();
});

Ext.onReady(function() {
        var win = new Ext.Window({
            title: "form Layout
",
            height: 150,
            width: 230,
            plain: true,
            bodyStyle: 'padding:15px',
            items: 
            {
                xtype: "form",
                labelWidth: 30,
                defaultType: "textfield",
                frame:true,
                items: 
                [
                    {
                        fieldLabel:"姓名",
                        name:"username",
                        allowBlank:false
                    },
                    {
                        fieldLabel:"呢称",
                        name:"nickname"
                    },
                    {
                        fieldLabel: "生日",
                        xtype:'datefield',
                        name: "birthday",
                        width:127
                    }
                ]
            }
        });
        win.show();
    });

table
按照普通表格的方法布局子元素，用layoutConfig:{columns:3},//将父容器分成3列
Java代码
1. Ext.onReady(function(){
2. var panel=new Ext.Panel(
3. {
4. renderTo:'paneldiv' ,
5. title:'容器组件' ,
6. layout :'table' ,
7. width:500 ,
8. height:200 ,
9. layoutConfig:{columns:3 }, //将父容器分成3列
10. items:[
11. {title:'元素1' ,html: 'ssssssssss' ,rowspan: 2 ,height: 100 },
12. {title:'元素2' ,html: 'dfffsddsdfsdf' ,colspan: 2 },
13. {title:'元素3' ,html: 'sdfsdfsdf' },
14. {title:'元素4' ,html: '' }
15. ]
16. }
17. );
18. });

EXTJS 布局