ionic ion-tab图标修改, 自定义tab图标

遇到需要自定义tab图标很简单, 只需要自定义相应的css就可以了, 这里要注意的是如何调整背景图片的大小.

<ion-view hide-back-button="false">
	<style>
	.ion-ios-home0 {
		background: url(img/home0.png) no-repeat 50% 50%;
		background-size: 20px 20px;
	}

	.ion-ios-book0 {
		background: url(img/book0.png) no-repeat center ;
		background-size: 20px 20px;
	}

	.ion-android-person0 {
		background: url(img/person0.png) no-repeat center ;
		background-size: 20px 20px;
	}

	.ion-ios-home1 {
		background: url(img/home1.png) no-repeat center ;
		background-size: 20px 20px;
	}

	.ion-ios-book1 {
		background: url(img/book1.png) no-repeat center ;
		background-size: 20px 20px;
	}

	.ion-android-person1 {
		background: url(img/person1.png) no-repeat center ;
		background-size: 20px 20px;
	}

	</style>
	<ion-tabs class="tabs-icon-top tabs-color-active-assertive tabs-light" ng-class="{'tabs-item-hide': $root.hideTabs}" delegateHandle="main">
		<ion-tab title="首页" icon="ion-ios-home0" nav-direction="swap" icon-on="ion-ios-home1" href="#/home/index/code/">
			<ion-nav-view name="tab-index"></ion-nav-view>
		</ion-tab>
		<ion-tab title="学习" icon="ion-ios-book0" nav-direction="swap" icon-on="ion-ios-book1" href="#/home/inread">
			<ion-nav-view name="tab-inread"></ion-nav-view>
		</ion-tab>
		<ion-tab title="我的" icon="ion-android-person0" nav-direction="swap" icon-on="ion-android-person1" href="#/home/user-center">
			<ion-nav-view name="tab-usercenter"></ion-nav-view>
		</ion-tab>
	</ion-tabs>
</ion-view>