解决Titanium Tab组件click事件在iOS中不生效的方案

问题: 以下代码,tab1的click事件在Android中生效,在iOS不生效

function ApplicationTabGroup(Window) {


[code]    //create module instance

var self = Ti.UI.createTabGroup();

//create app tabs

var win1 = new Window(L('home')), win2 = new Window(L('settings'));

var tab1 = Ti.UI.createTab({

title : L('home'),

icon : '/images/KS_nav_ui.png',

window : win1

});

win1.containingTab = tab1;

var tab2 = Ti.UI.createTab({

title : L('settings'),

icon : '/images/KS_nav_views.png',

window : win2

});

win2.containingTab = tab2;

self.addTab(tab1);

self.addTab(tab2);

tab1.addEventListener('click',function(){

//这个事件在iOS中不会被触发

});

return self;

};

module.exports = ApplicationTabGroup;

[/code]

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

解决方案:

通过看Titanium附带的示例程序 Kitcken Sink , 找到了解决方案.

为TabGroup添加focus事件,然后对事件参数进行判断,来确定当前被点击的是那个tab.

 

function ApplicationTabGroup(Window) {


[code]    //create module instance

var self = Ti.UI.createTabGroup();

//create app tabs

var win1 = new Window(L('home')), win2 = new Window(L('settings'));

var tab1 = Ti.UI.createTab({

title : L('home'),

icon : '/images/KS_nav_ui.png',

window : win1

});

win1.containingTab = tab1;

var tab2 = Ti.UI.createTab({

title : L('settings'),

icon : '/images/KS_nav_views.png',

window : win2

});

win2.containingTab = tab2;

self.addTab(tab1);

self.addTab(tab2);

self.addEventListener('focus', function(e) {

var info = Titanium.API.info;

// 在iOS中, e.source 是 TabGroup对象,

// 在Android中,e.source 是 Tab对象

var src = e.source;

var tab = e.tab;

var preTab = e.previousIndex;

// e.tab 是当前获得焦点的tab

// e.index 当前获得焦点的tab的索引,首次为-1

// e.previousTab 上个tab

// e.previousIndex 上个tab的索引,首次为null

// On iOS, the "More..." tab is actually a tab container, not a tab. When it is clicked, e.tab is undefined.

if (!tab) {

info('在iOS中点击了"More..."');

return;

}

// 首次

if (!preTab) {

info('首次进入');

return;

}

if (tab === tab1) {

info('点击了tab1');

} else if (tab === tab2) {

info('点击了tab2');

}

});

return self;

};

module.exports = ApplicationTabGroup;

[/code]

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }