react native dropdown

Simulation machine debugging first to confirm that your environment variable path is not the ADB paths, ADB generally in the Android ADK directory under Platform-tools, Android directory by default in the C disk user/administrator (user default words ) in/appdata/If you're using the emulator that comes with Android studio, you can play it like this.RunC:\Users\Administrator\AppData\Local\Android\Sdk\emulator\emulator.exe-netdelay none-netspeed FULL-AVD NEXUS4 _api_27This command to ensure that t

Today to write a component, I believe many people will use the--viewstack.The Viewstack component is undoubtedly a very important component in the UI, but react-native is not embedded in it and needs to be implemented by the developer himself.The implementation principle is simple, is to display a sub-view according to the index, with a render can be done:1 render () {2 return (3 4 {

Pulltorefreshviewandroid LearningPulltorefreshviewandroid is a view that can place a single scrollable child view that, when the sub-view is shifted vertically (scrolly) to 0 o'clock, the drop-down can trigger a Onrefresh event.Before learning pulltorefreshviewandroid components, if there is not a certain basis, it is recommended to read the previous article, because, here I learn scrollview before the foundation, add pulltorefreshviewandroid function. The current code is as follows:' use strict

: _handlemoveshouldsetpanrespondercapture2 (Event:object, Gesturestate:object,): boolean { console.log ( Gesturestate.dy); Console.log (' _handlemoveshouldsetpanrespondercapture2 '); When you swipe to the top and continue to pull down, return this._reachend2gesturestate.dy>=0; } Okay ~ Our first page of the parent control gets the swipe event, we continue to pull up, that is, to pull up the distance to our "Pull up View Details" component:_handlepanr

?? Code debugging, especially important in the process of program development, can help developers quickly locate problems.?? This paper focuses on the program debugging tools and processes developed by react native.?? Exhale the Developer Menu dialog box as shown in: Android Physical device or iOS physical device: Shake the phone to exhale.Android Simulator:Command? + M iOS Simulator:C

React Native Knowledge 3-TextInput component, react3-textinput TextInput is a basic component that allows users to input text on the keyboard in an application. The attributes of this component provide various features, such as automatic completion, auto case, placeholder text, and a variety of different keyboard types (such as pure numeric keypad. Its style attributes are the same as those of Text; I. Attr

Before looking at this article, please refer to my preparation as follows: 1, installed react Developer Tools plug-in chrom; 2, integrated react Native after the webstorm, integrated reference Webstorm integration React-native plug-ins and basic settings; 3, an Androi

1 Installing ChocolateyOpen cmd Black window@powershell-noprofile-executionpolicy Bypass-command "IEX (New-object net.webclient). Downloadstring (' Https://chocolatey.org/install.ps1 ')) " SET path=%path%;%allusersprofile%\chocolatey\ BinStick This code in, enter.2 Installing node, Python2, JDKChoco Install Nodejs.installChoco Install Python2Choco Install Jdk83 Configuring Java Environment variablesSee http://jingyan.baidu.com/article/1e5468f924210a484961b7f0.htmlCMD run Javac See if successful4

Uiimageview Creation (React Native) by Wusheying' Use strict '; var React = require (' react-native '); var {appregistry, StyleSheet, View, Image,} = React;class Uiimagevie W extends React.component {render () {return (

Uiactivityindicator Creation (React Native) by Wusheying' Use strict '; var React = require (' react-native '); var {appregistry, StyleSheet, View, Activityindicatorios,} = React;c Lass Uiactivityindicator extends React.c

Uilabel Creation (React Native) by Wusheying' Use strict '; var React = require (' react-native '); var {appregistry, StyleSheet, View, Text,} = React;class UILabel ext Ends React.component {render () {return ( Uilabel Creation (

In the development process, images are used in almost every project.RN is the display of pictures through the image component. You can load a network picture or load a local resource picture.The image component must declare the paragraph and height of the picture in the style. If there is no declaration, the picture will not be rendered on the interface.Web Image loadingLoading network pictures is very simple, directly on the code:Modify Index.ios.js or Inde.android.jsImport

We can access Web pages in our React Native application using the WebView component. We'll connect the links in your repository component to their Github Web page when a user click on them.Navigate to WebView component: openpage (URL) { this. Props.navigator.push ({ component:web, ' Web View', passprops: {URL}} ); Web View compnent:Import