state

问题 I am researching into what is the best way to store the UI state, Should I use something like Redux-UI (https://github.com/tonyhb/redux-ui) to store/manage the UI state? or should I create my own actions/reducers for the UI? Also... when I have stored the UI state, how do I make sure if the browser is refreshed, I still have exactly the same state of the page? Just as a normal web page would including Data taken from the server. I have Redux with thunk middle wear implemented and a store. I

问题 I'm not understanding my professor means when he says the write flag and read flag. Does 0 mean it is triggered? He wants us to draw a state transition diagram but I think I can do that myself if I knew what was going on. +---------+------------+-----------+----------------+ | Counter | Write flag | Read flag | Interpretation | +---------+------------+-----------+----------------+ | 0 | 0 | 0 | Write locked | | 0 | 0 | 1 | Invalid | | 0 | 1 | 0 | Invalid | | 0 | 1 | 1 | Available | | N | 0 |

问题 When I try to load the "test" state or any of these state, controllers does not affect. Template are changed perfectly but no data comes from the mentioned controller in state configuration. And I did not use ng-controller directive any where. myApp.config(function($stateProvider,$urlRouterProvider){ $stateProvider.state('task', { url:'/task', controller:"TasksController", views:{ "sidebar":{templateUrl:'/partial/task/taskcreateform.html'}, "content":{templateUrl:'/partial/task/taskgrid.html'

问题 When I try to load the "test" state or any of these state, controllers does not affect. Template are changed perfectly but no data comes from the mentioned controller in state configuration. And I did not use ng-controller directive any where. myApp.config(function($stateProvider,$urlRouterProvider){ $stateProvider.state('task', { url:'/task', controller:"TasksController", views:{ "sidebar":{templateUrl:'/partial/task/taskcreateform.html'}, "content":{templateUrl:'/partial/task/taskgrid.html'

问题 How can I check the state (pause/running/suspended) of a particular process running on the Android device programmatically? I want to include this logic within my application. Using ActivityManager , I am able to retrieve a list of all processes running on the device, but it doesn't show me any process state information. Any idea on how I can retrieve this information? Thanks in Advance. 回答1: I was wrong when I mentioned in the question that there is no process state information in the list

问题 It seems like ListView doesn't expose its y-position in the same way a ScrollView does. In other words: I need to remember the exact position the ListView was scrolled to and set it when I return to the activity. Just to clarify: I don't need the selected item... that's pretty straight forward. I need to restore the exact pixel-wise y position on the ListView. Thanks! 回答1: I've used this successfully when saving (in onSaveInstanceState) and restoring (onCreate), when switching orientations:

问题 I was wondering what is the best way to partially update a state of a component in React/React-Native. Other than the fact that I can make a function which takes the current state and creates a new state and merges the new {key:value} and the previous state. For example: { dataStream:[//having data here], formData: { 'first_name': 'Richard', 'last_name' : 'Barbieri', } } I want to update last_name to another value. When I call this.setState(formData:{{'last_name':newValue}}) , it resets the

问题 I have a react element that has an inline style like this: (Shortened version) <div className='progress-bar' role='progressbar' style={{width: '30%'}}> </div> I want to replace the width with a property from my state, although I'm not quite sure how to do it. I tried: <div className='progress-bar' role='progressbar' style={{{width: this.state.percentage}}}> </div> Is this even possible? 回答1: You can do it like this style={ { width: `${ this.state.percentage }%` } } Example 回答2: yes its

问题 I am creating a simple chat app where I make an api call to my database via axios which returns an array of message objects. I am able to get the data when I make an axios call in componentWillMount. Then I am trying to setState to display the conversation. Here's the code: export default class Chat extends Component { constructor(props){ super(props); this.state = { messages : [], message : '', }; this.socket = io('/api/'); this.onSubmitMessage = this.onSubmitMessage.bind(this); this

问题 Recently some co-workers and I were having a discussion as to whether or not AngularJS services should have state or not. We came up with some arguments for and against it and I wanted to get additional thoughts and feedback on the subject. In my searching I found this but there doesn't seem to be any clear best-practice mentioned. In the none client-side world a service should never hold state, but I am starting to think that it might be acceptable client-side because its a different problem