render

问题 Assume I have a tab control component written in React. Only the active tab will be rendered for better performance (if I render all tabs, it will take 5 seconds, because there are about 20 tabs, each containing plenty of data). Other tabs will be rendered when I click them to activate them. This works very well except for one tab. The special tab is much bigger than others, it contains a table that has 2000 rows, so React takes 3 seconds to render it. This makes the user experience pretty

问题 I have a datatable in a shiny app, in which I want to add superscript to my observations. These should detail whether the observation is an estimate, and how far the year of the observation is from the reference year (this data is already in my dataset). For example a particular observation might display : "75(superscript)-3 e". Is this possible? 回答1: I had the same question today and this post helped me get some of the way there. There is a working example of this on How to add subscripts in

问题 I am just learning how to use SDL and openGL. I've been through the tutorials over at SDLTutorials.com. I am now trying to take things further and create a loading screen for an application; an oop menu system. I am starting off real simple to test things out. I have the main backdrop of the window done via a texture class. The two relevant functions are defined here: void Texture::Bind() { glBindTexture(GL_TEXTURE_2D, TextureID); } void Texture::RenderQuad(int X, int Y, int Width, int Height

问题 i work about application how can change android screen brightness, can somme help me by giving some examples of how to doing this. Thanks :-) 回答1: This peice of code will set the brightness: private void setBrightness(int brightness) { try { IHardwareService hardware = IHardwareService.Stub.asInterface( ServiceManager.getService("hardware")); if (hardware != null) hardware.setScreenBacklight(brightness); } catch (RemoteException doe) { } } Do not forget to add to your manifest <uses

问题 I'm working on a bus driver app. Once in a while, there are messages published on a MQTT topic which the app is subscribed to (by a server). When such message comes, a popup must appear. I customized the default Kivy popup: changed the background, added as the content a FloatLayout with a Lable and a Button. The problem is that once in several cases (5-6) the texture elements of the popup jumps away, like the background, or the Label text, or the button's image. Here is the Kivy definition of

问题 I send my function to child component for callBack . In the parent, I have a function with setState method: onInputUpdated(id){ var array = {}; let char = id.slice(-1); console.log(this.state.states) switch(char){ case 'a': array[id] = this.getY(ReactDOM.findDOMNode(this.refs[id].refs.inp).value); break; case 'b': array[id] = this.getX(ReactDOM.findDOMNode(this.refs[id].refs.inp).value); break; } let oldStates = this.state.states; oldStates[id] = array[id]; this.setState({ states: oldStates }

问题 class Person { String name Integer age String street String email } class PersonController { def save = { def personInstance = new Person(params) personInstance.save(flush:true) } } main.gsp <g:form controller="person" action="save"> <g:textField name="name" /> <g:textField name="age" /> <g:textField name="street" /> <g:textField name="email" /> <g:submitButton name="save" value="Save" /> </g:form> What modifications do i have to make in both the controller and the gsp page to render the

问题 I would like to figure out how to use renderImage in Shiny with online located images (URL), and make the image clickable, so that I can hang an observeEvent() to it. I can do both these things, but not together. My approach to render an URL doesn't work with clicking, and the local image version that allows clicking doesn't render URL images. Here are the two half working versions: I took some inspiration from here for the Clickable library(shiny) ui <- fluidPage( imageOutput("image1", click

问题 I have a connected component where I would like to retrieve an array of objects. In my store, there is an array of ids, and an object where I keep the items like this: const state = { items: [0, 1, 2], itemsById: { 0: {}, 1: {}, 2: {}, }, } So using the connect function of react-redux, I do this in my component to inject the correct array: const mapStateToProps = (state) => ({ items: state.items.map((itemId) => state.itemsById[itemId]), }) My app triggers updates very often (I dispatch

问题 I recently upgraded to Primefaces 5.0 and was in the process of converting my charts to accommodate the new chart api in 5.0 when I came across a rather annoying problem where one of my Line Charts only refuses to render on this one specific page. More Specifically: A LineChart I have does not work on a specific page. If put on another page, the chart works. If put on the specific page where it was not working with all the other content deleted, it still does not work. If the chart is placed