ionicHistory美元.手动返回前一个状态时，backView的状态不正确
$ionicHistory.backView has incorrect state when go to previous state manually
我做了一个小实验:http://codepen.io/hawkphil/pen/NqMomm?editors=101
这是我的状态流(点击按钮):Home -> Fact1 -> Fact2 -> Fact3 -> Fact2
在每个状态变化中，我显示console.log为$ionicHistory.backView然而，你可以看到在pen.js:64行，奇怪的事情发生了。$ionicHistory.backView"认为"我从后退按钮到达app.fact2，并将app.fact1显示为以前的状态(行pen.js:53)。这是不正确的，对吧?它应该显示app.fact3作为以前的状态，因为我得到了app.fact2状态手动点击按钮。我还显示了$timeout (pen.js:59行)的值，以防它太慢。但它仍然是不正确的。
pen.js:56 stateChangeSuccess
pen.js:64 State change from: tabs.home to: tabs.fact1
pen.js:52 $scope.$watch $ionicHistory.backView change detect. newVal:
pen.js:53 tabs.home
pen.js:58 $timeout after 2 sec $ionicHistory.backView().stateName
pen.js:59 tabs.home
pen.js:56 stateChangeSuccess
pen.js:64 State change from: tabs.fact1 to: tabs.fact2
pen.js:52 $scope.$watch $ionicHistory.backView change detect. newVal:
pen.js:53 tabs.fact1
pen.js:58 $timeout after 2 sec $ionicHistory.backView().stateName
pen.js:59 tabs.fact1
pen.js:56 stateChangeSuccess
pen.js:64 State change from: tabs.fact2 to: tabs.fact3
pen.js:52 $scope.$watch $ionicHistory.backView change detect. newVal:
pen.js:53 tabs.fact2
pen.js:58 $timeout after 2 sec $ionicHistory.backView().stateName
pen.js:59 tabs.fact2
pen.js:56 stateChangeSuccess
pen.js:64 State change from: tabs.fact3 to: tabs.fact2
pen.js:52 $scope.$watch $ionicHistory.backView change detect. newVal:
pen.js:53 tabs.fact1
pen.js:58 $timeout after 2 sec $ionicHistory.backView().stateName
pen.js:59 tabs.fact1
如何纠正这种行为?重写这个委托或者重写它?
是否有解决方案?因为我依靠正确的先前的状态来显示/隐藏某些东西
JS
angular.module('ionicApp', ['ionic'])
.config(function($stateProvider, $urlRouterProvider) {
$stateProvider
.state('tabs', {
url: "/tab",
abstract: true,
templateUrl: "templates/tabs.html",
controller: "MainCtrl"
})
.state('tabs.home', {
url: "/home",
views: {
'home-tab': {
templateUrl: "templates/home.html",
controller: 'HomeTabCtrl'
}
}
})
.state('tabs.fact1', {
url: "/fact1",
views: {
'home-tab': {
templateUrl: "templates/fact1.html",
controller: 'Fact1TabCtrl'
}
}
})
.state('tabs.fact2', {
url: "/fact2",
views: {
'home-tab': {
templateUrl: "templates/fact2.html",
controller: 'Fact2TabCtrl'
}
}
})
.state('tabs.fact3', {
url: "/fact3",
views: {
'home-tab': {
templateUrl: "templates/fact3.html",
controller: 'Fact3TabCtrl'
}
}
})
.state('tabs.about', {
url: "/about",
views: {
'about-tab': {
templateUrl: "templates/about.html"
}
}
})
.state('tabs.navstack', {
url: "/navstack",
views: {
'about-tab': {
templateUrl: "templates/nav-stack.html"
}
}
});
$urlRouterProvider.otherwise("/tab/home");
})
.controller('MainCtrl', function($scope, $rootScope, $timeout, $ionicHistory) {
$scope.$watch(function() {
return $ionicHistory.backView() ? $ionicHistory.backView().stateName : null;
}, function (newVal, oldVal) {
console.log('$scope.$watch $ionicHistory.backView change detect. newVal:');
console.log(newVal);
});
$rootScope.$on('$stateChangeSuccess', function(event, toState, toParams, fromState, fromParams){
console.log('stateChangeSuccess');
$timeout(function(){
console.log('$timeout after 2 sec $ionicHistory.backView().stateName');
console.log($ionicHistory.backView().stateName);
}, 2000);
});
})
.controller('HomeTabCtrl', function($scope, $rootScope) {
// console.log('Home');
$rootScope.$on('$stateChangeSuccess', function(event, toState, toParams, fromState, fromParams){
console.log('State change from: ' + fromState.name + ' to: ' + toState.name);
});
})
.controller('Fact1TabCtrl', function($scope) {
// console.log('Fact1');
})
.controller('Fact2TabCtrl', function($scope) {
// console.log('Fact2');
})
.controller('Fact3TabCtrl', function($scope) {
// console.log('Fact3');
});