ionic进入多级目录后隐藏底部导航栏(tabs)的完美解决方案

<ion-tabs class="tabs-icon-top" ng-class="{'tabs-item-hide': $root.hideTabs}"> 
//tabs 
</ion-tabs>

//app已经在其他文件中指定，如var app = angular.module("starter",["ionic"]) 
app.directive('hideTabs', function($rootScope) { 
return { 
restrict: 'A', 
link: function(scope, element, attributes) { 
scope.$on('$ionicView.beforeEnter', function() { 
scope.$watch(attributes.hideTabs, function(value){ 
$rootScope.hideTabs = 'tabs-item-hide'; 
}); 
}); 
scope.$on('$ionicView.beforeLeave', function() { 
scope.$watch(attributes.hideTabs, function(value){ 
$rootScope.hideTabs = 'tabs-item-hide'; 
}); 
scope.$watch('$destroy',function(){ 
$rootScope.hideTabs = false; 
}) 
}); 
} 
}; 
});

//这是官网模板中的文件 
<ion-view hide-tabs="true" view-title="{{chat.name}}"> 
<ion-content class="padding"> 
<img ng-src="{{chat.face}}" style="width: 64px; height: 64px"> 
<p> 
{{chat.lastText}} 
</p> 
</ion-content> 
</ion-view>