javascript - Angularjs ui-router，如何在 $stateChangeSuccess 触发时获取预加载解析值？

Question

$stateProvider.state('home', {
  url: '/', 
  resolve: {
    person: function() { 
      return 'good' 
    } 
  }

像上面的状态配置一样，如何在 $stateChangeSuccess 回调函数中获取 'person' 值？

$rootScope.$on('$stateChangeSuccess', 
  function(event, toState, toParams, fromState, fromParams) {
    // I want get the 'person' value in this function, what should I do?
});

Answer 1

我们遇到了同样的问题。我们是依靠ui-router的一些内部实现细节来解决的；这确实意味着它可能会在未来版本的 Angular 中中断，但这是我们使用的函数:

function annotatedStateObject(state, $current) {
    state = _.extend({}, state);
    var resolveData = $current.locals.resolve.$$values;
    state.params = resolveData.$stateParams;
    state.resolve = _.omit(resolveData, '$stateParams');
    state.includes = $current.includes;
    return state;
}

这将获取参数、包含和所有(已解析的)解析对象。我们像这样在回调中使用它:

$scope.$on('$stateChangeSuccess', function(event, toState, toParams, fromState, fromParams) {
    toState = annotatedStateObject(toState, $state.$current);

    var person = toState.resolve.person;
}

希望对您有所帮助!