How can i update $stateParams without reloading th

2020-02-09 06:05发布

站内问答 / 后端开发
705 3 5

Get the context, angular, ui-router, nothing special, a root view built with 3 named ui-views. so in index.html we have 

<body>
  <div ui-view='left'>
  <div ui-view='center'>
  <div ui-view='right'>
</body>

my route looks like

$stateProvider
 .state('main', {
  url: '/',
  views: {
   'left': {templateUrl: 'foo.html'},
   'center': {templateUrl: 'bar.html'},
   'right': {templateUrl: 'xyz.html'}
  }
 })
 .state('main.b', {
  url: '/b',
  params: { foo: {value: 'bar'} }
  views: { 'right@': {templateUrl: '123.html'} } // I wish to update $stateParams in 'left@' view
 })
 .state('main.c', {
  url: '/c',
  params: ...
  views: { 'left@': ..., 'center@': ..., 'right@': .. }
 });

Is there a way in going to b state to update the $stateParams in the 'center' and 'left' view?? I can get it using a service but i need to add a $watch to the variable I need and it looks a little bit hacky to me.

Going into c state I can actually get what I want, but the view is reloaded, and i wish to avoid this behaviour cause i have a canvas in the 'left' view.

3条回答
别忘想泡老子
2楼-- · 2020-02-09 06:44

You could use the following to go to a specific route without reloading the views:

$state.go('.', {parm1: 1}, {notify: false});

The last object literal represents the options which you can pass along to go. If you set notify to false, this will actually prevent the controllers from being reinitialized. The . at the beginning is the absolute state name or relative state path you wanna go to.

The important thing is the notify though.

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ら.Afraid
3楼-- · 2020-02-09 06:56

Quoting @christopherthielen from https://github.com/angular-ui/ui-router/issues/1758#issuecomment-205060258:

using notify: false is almost never a good idea, and is now deprecated. Use reloadOnSearch if you must.

You can also try dynamic parameters in the 1.0 version (currently 1.0.0-alpha.3). In your state, configure a parameter as dynamic and implement the uiOnParamsChanged callback :

.state('foo', {
  url: '/:fooId',
  params: { fooId: { dynamic: true } },
  controller: function() {
    this.uiOnParamsChanged = function(changedParams, $transition$) {
      // do something with the changed params
      // you can inspect $transition$ to see the what triggered the dynamic params change.
    }
  }
});

For a demo, have a look at this plunker: http://plnkr.co/edit/T2scUAq0ljnZhPqkIshB?p=preview

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在下西门庆
4楼-- · 2020-02-09 06:58

I think that using "Dynamic params" is now a better solution:

When dynamic is true, changes to the parameter value will not cause the state to be entered/exited. The resolves will not be re-fetched, nor will views be reloaded.

$stateProvider.state('search', {
   url: '/search?city&startDate&endDate',
   templateUrl: 'some/url/template.html',  
   params: {
      city: {
         value: 'Boston',
         dynamic: true
      }
   }
 }

and then: 

$state.go('.', {city: 'London'});

https://ui-router.github.io/ng1/docs/latest/interfaces/params.paramdeclaration.html#dynamic https://github.com/angular-ui/ui-router/issues/2709

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