ionic 顶/底部按钮宽度“平均分”

文章参考 http://blog.csdn.net/aitangyong/article/details/50929691 

<ion-footer-bar style="padding: 0">
    <div class="button-bar">
        <button class="button button-assertive" ng-click="goTo('addAddress')">增加新地址</button>
        <button class="button button-calm" ng-click="goTo('propertyPaymentIndex')">确定</button>
    </div>
</ion-footer-bar>

或者

<div class="bar bar-footer">
	<div class="button-bar">
        <button class="button button-assertive" ng-click="goTo('addAddress')">增加新地址</button>
        <button class="button button-calm" ng-click="goTo('propertyPaymentIndex')">确定</button>
    </div>
</div>