Taro Specs

1. 文件夹规范

— 入口文件为 app.js

— 页面文件放在src/pages目录下

-- config
|-- dev.js
|-- index.js
|-- prod.js
-- src
|-- components
| |-- ComponentName
|-- pages
| |-- index
| | |-- banner

Taro Best Practices Notes

1. 不能在包含JSX 元素的 map 循环中使用 if 表达式

2. 不能在Array.map 之外的方法中操作 JSX 数组

3. 不能在JSX参数中使用匿名函数

4.不支持在render() 之外的方法中定义JSX

所有的JSX定义,都要写在 render()中

> render(){
> const header = <View><Text>Header</Text></View>;
> const {showHeader} = this.state
>
> return (
> <View>
> {
> showHeader&&header
> }
> <View>
> <Text>Body</Text>
> </View>
> </View>
> )
> }
>

5. 不要再JSX的参数(props)中使用对象展开操作符

6. 不支持无状态组件

7.自定义组件样式不能受外部样式影响

即不要给自定义组件添加 className 或者 style 属性以期望控制自定义组件的展示

8.给自定义的组件设置 defaultProps 和 propTypes

class CustomComponent extends Component {
render(){
return (
<h1> Hello, {this.props.name}</h1>
);
}
}

CustomComponent.propTypes = {
name: PropTypes.String
};

CustomComponent.defaultProps = {
name: null
};

####9.组件传递函数属性以 on 开头

Class Parent extends Component {
handleEvent(){

}

render(){
return(
<CustomChild
onTrigger={this.handleEvent.bind(this)}
renderHeader={<JSX ></JS>}
>
</CustomChild>
)
}
}

10.不要在组件中打印传入的函数

11.不要将在模板中用到的数据设置为 undefined

如果某个数据不使用了,可以设置成 null

12.不要在组件中打印 this.props.chidren

13. props中可以传入JSX

组件传入的JSX的属性名必须以 render 开头

14. 属性值不能以 id,class,style 为名称

15. state 和 props 的字段不能重名

16.生命周期差异

— 在componentWillMount() 中即 onLoad 的时候才能拿到路由

— 子组件的 constructorrender 初始化时会被提前调用一次

17. JS编码必须使用单引号

18. 环境变量需要直接使用 process.env

19. 页面跳转时,在 componentWillMount() 前可以通过预加载拿到参数进行页面请求

> class Index extends Component{
>
> // Step 1.
> componentWillPreload(params) {
> // Step 2.
> return this.fetchData(params.url)
> }
>
> // Method Define
> fetchData () {
> this.isFetching = true
>
> }
>
> // Step 3.
> componentWillMount(){
> console.log('is Fetching: ', this.isFetching)
> this.$preloadData
> .then( res => {
> console.log( 'res', res)
> this.isFetching = false
> })
> }
> }
>
  1. 通过componentWillPreload接收页面跳转参数作为参数;
  2. componentWillPreload 中通过 return 将需要加载的内容返回;
  3. 在页面中触发 componentWillMount, 然后通过 this.$preloadData 获取到预加载的内容,然后再处理数据;

20. 使用this.$preload 函数进行页面跳转传参数

使用 this.$preload 可以传入单个参数也可以传入多个参数

this.$preload('key', 'val')
Taro.navigateTo({ url: '/pages/B/B'})

componentWillMount(){
console.log('preload: ', this.$router.preload.key)
}
this.$preload({
x: 1,
y: 2
})
Taro.navigateTo({ url: '/pages/B/B'})

componentWillMount(){
console.log('preload:', this.$router.preload)
}

21. 使用PurComponent减少不必要的渲染

class Home extends Taro.PureComponent {

}

Flutter Widgets -

Basic Widget

Container

​ 1. Container

属性 类型 默认值 说明
alignment AlignmentGeometry Align the child within the container.
constraints
decoration Decoration
foregroundDecoration
margin
padding
transform
child Widget 被Container 包含的子Widget

Row

Column

Image

Text

Icon

RaisedButton

Scaffold

Appbar

Placeholder

StatefulWidget vs StatelessWidget

StatefulWidget 是指自身会有状态变化的组件。

例如,系统提供的 Checkbox, Radio, Slider, Form, TextField

StatelessWidget 是指自身内部不会有状态变化的组件。

例如,系统提供的无状态的组件有 Icon, IconButton, Text

Dart In Flutter

变量声明

var

  1. var 声明变量时不用指定变量可以接受的数据类型
  2. 编译时,第一次给 var 声明的变量赋值时来推断 var 变量的类型
  3. var 声明的变量类型一经指定后,不可以再修改其变量类型
var t;
t = "hello world";
t = 1000; // ❌

dynamic

Widget 类型

Widget 分为 有状态的widget(Stateful widget) 无状态的widget(Stateless widget) ,他们的差别点在于:

  1. Stateful widget 可以拥有状态,即在该类widget的生命周期中,其拥有的状态是可以改变的;
  2. Stateless widget在其生命周期中是不可以改变的;
  3. Stateful widget 至少由两个类组成:
    • StatefulWidget 类: 声明某个继承StatefulWidget的类
    • State类:状态类,在Widget的生命周期中可能发生变化
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}): super(key: key);
final String title;
@override
_MyHomePageState createState() => new _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {

}

StatefulWidget 的构建

  1. 构建 StatefulWidget
  2. 创建 State
  3. 初始化Widget
  4. 调用Widgetbuild 方法构建 widget 树
  5. 将 widget树显示到屏幕上
export default class Index extends Component {
config = {
navigationBarBackgroundColor: '#000000',
navigationBarTextStyle: 'white/black',
navigationBarTitleText: '页面标题',
navigationStyle: 'default/custom',
backgroundColor: '#ffffff',
backgroundTextStyle: 'dark/light',
backgroundColorTop: '#ffffff',
backgroundColorBottom: '#ffffff',
enablePullDownRefresh: false,
onReachBottomDistance: 50,
pageOrientation: 'auto/portrait/landscape',
disableScroll: false,
disableSwiperBack: false,
usingComponents: {

}
}

componentWillMount(){

}

componentDidMount(){

}

componentWillUpdate(nextProps, nextState){

}

componentDidUpdate(prevProps, prevState){

}

componentWillUnmount(){

}

componentDidShow(){

}

componentDidHide(){

}

/*
const {} = this.$router.params
*/


onPullDownRefresh(){

Taro.startPullDownRefresh()

Taro.stopPullDownRefresh()
}

onReachBottom(){

}

onPageScroll(Object){

}

onShareAppMessage(Object){
const {from, target, webViewUrl} = Object
return{
title: '',
path: '',
imageUrl: '',
}
}

onResize(object){

}

onTabItemTab(object){
const {index, pagePath, text} = object
}

componentWillPreload(){

}
}
import Taro, {Component} from '@tarojs/taro'
import Index from './pages/index'
import './app.scss'

class App extends Component {
config = {
pages: [
'pages/index/index',
'pages/me/index',
'pages/category/index'
],
window: {
navigationBarBackgroundColor: '#000000',
backgroundTextStyle: 'light',
navigationBarBackgroundColor: '#fff',
navigationBarTitleText: 'application name',
navigationBarTextStyle: 'black',
navigationStyle: 'default/custom',
backgroundTextStyle: 'dark/light',
backgroundColorTop: '#ffffff',
backgroundColorBottom: '#ffffff',
enablePullDownRefresh: true,
onReachBottomDistance: 50,
pageOrientation: 'auto/portrait/landscape'
},
tabBar: {
color: '#aabbcc',
selectedColor: '#ffffff',
backgroundColor: '#000000',
borderStyle: 'black/white',
list: [
{
pagePath: '/pages/index/index',
text: 'home',
iconPath: '', // max 40kb, 81px*81px
selectedIconPath: '', // max 40kb, 81px*81px
}
],
postion: 'bottom/top',
custom: true/false
},
networkTimeout: {
request: 60000, // Taro.request
connectSocket: 60000, // Taro.connectSocket
uploadFile: 60000, // Taro.uploadFile
downloadFile: 60000 // Taro.downloadFile
},
debug: true,
functionalPages: true,
subPackages: [
],
workers: '/worker/path/',
requiredBackgroundModes: ['sound'],
plugins: {

},
preloadRule: {

},
resizable: true,
navigateToMiniProgramAppIdList: [
'appid001','appid02'
],
usingComponents: {

},
permission:{
'scope.userLocation': {
desc: '你的位置信息将用于小程序接口的效果展示'
}
}
}

componentWillMount(){
const {path, scene, query, shareTicket, referrerInfo} = this.$router.params
const {appId, extraData, sourceServiceId} = referrerInfo
}

componentDidMount(){
const {path, scene, query, shareTicket, referrerInfo} = this.$router.params
const {appId, extraData, sourceServiceId} = referrerInfo
}

// 对应小程序的 onShow()
componentDidShow(){
const {path, scene, query, shareTicket, referrerInfo} = this.$router.params
const {appId, extraData, sourceServiceId} = referrerInfo
}

// 对应小程序 onHide()
componentDidHide(){

}

// 对应小程序的 onError()
componentDidCatchError(String error){

}

// 对应小程序的 onPageNotFound()
componentDidNotFound(Object){
const {path, query, isEntryPage} = Object
}

}

Taro Tips

DO NOT DO IT

— Do not use class / id / style as component property name

— Do not use HTML tag in Taro

— Do not use this.state in this.setState

— Avoid call this.setState in componentDidMount

— Do not call this.setState in componentWillUpdate/componentDidUpdate/render

— Do not define the unused state

— Do not use anonymous function in JSX

<View onClick={this.handleClick} />
<View onClick={this.handleClick.bind(this)} />
<View onClick={this.props.handleClick} />
<View onClick={this.props.handleClick.bind(this)} />

Below Code can not work

<View onClick={() => this.handleClick()} />

<View onClick={(e) => this.handleClick(e)} />

<View onClick={() => ({})} />

<View onClick={function () {}} />

<View onClick={function (e) {this.handleClick(e)}} />

<Custom child={<View />} />

<Custom child={() => <View />} />

<Custom child={function () { <View /> }} />

<Custom child={ary.map(a => <View />)} />

— Do not use object spread operator in JSX

— Do not use non functional component

DO IT in Taro

— Assign key when you use map loop

— It is better to define defaultProps

class ComponentName extends Component{
static defaultProps = {
propName: propValue,
}
}

— Must return in render()

— PLEASE use on as prefix for component event property

<View className='container' onClick={this.handleClick} />

— It is better to use map to operate Array

native-base component interface and props

Native Base component interface and props

native base is a wonderful react-native component lib. But it doesn’t provide enough Components document on official site.

After we install native-base module, we can find “native-base” module definition file, it contains much information about each props for “native-base” component.

Past them here for development reference usage.

A official native-base component usage, we can find from here: https://docs.nativebase.io/Components.html#Components



declare module "native-base" {
import * as React from "react";
import * as ReactNative from "react-native";

namespace NativeBase {
interface Text extends ReactNative.TextProperties {
note?: boolean;
uppercase?: boolean;
}

interface Switch extends ReactNative.SwitchProperties { }

interface View extends ReactNative.ViewProperties {
padder?: boolean;
}

interface Picker extends ReactNative.PickerProperties {
mode?: "dialog" | "dropdown";
iosHeader?: string;
inlineLabel?: boolean;
headerBackButtonText?: string;
placeholder?: string;
placeholderStyle?: ReactNative.TextStyle;
textStyle?: ReactNative.TextStyle;
style?: ReactNative.TextStyle;
iosIcon?: React.ReactElement<NativeBase.Icon>;
note?: boolean;
placeholderIconColor?: string;
itemTextStyle?: ReactNative.TextStyle;
headerStyle?: ReactNative.ViewStyle;
headerTitleStyle?: ReactNative.TextStyle;
headerBackButtonTextStyle?: ReactNative.TextStyle;
modalStyle?: ReactNative.ViewStyle;
renderHeader?: (backAction: any) => React.ReactElement<any>;
}

interface H1 extends ReactNative.TextProperties { }
/**
* see Widget Text.js
*/
interface H2 extends ReactNative.TextProperties { }
/**
* see Widget Text.js
*/
interface H3 extends ReactNative.TextProperties { }
/**
* see Widget Text.js
*/
interface BsStyle {
success?: boolean;
primary?: boolean;
danger?: boolean;
warning?: boolean;
info?: boolean;
}

interface Badge extends ReactNative.ViewProperties, BsStyle { }
/**
* see Widget CardSwiper.js
*/
interface CardSwiper { }
/**
* see Widget DeckSwiper.js
*/
interface DeckSwiper {
/**
* Array<any>
*/
dataSource?: Array<any>;
/**
* Direction of iteration for elements
* Default: iterates in backward direction
*/
onSwipeLeft?: Function;
/**
* Direction of iteration for elements
* Default: iterates in forward direction
*/
onSwipeRight?: Function;
/**
* Takes a data entry from the data source and should return a renderable component to be rendered as the row.
*/
renderItem?: Function;
}
/**
* see Widget Header.js
*/
interface Header {
/**
* Prop to be used with <Header> component to have Search bar onto the Header section of your screen.
*/
searchBar?: boolean;
/**
* Wraps the search bar with predefined border options.
* Default: regular
*/
rounded?: boolean;
style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
/**
* It is advisable to use hasTabs prop with Header while using Tab
*/
hasTabs?: boolean;
noShadow?: boolean;
hasSubtitle?: boolean;
span?: boolean;
androidStatusBarColor?: string;
iosBarStyle?: ReactNative.StatusBarStyle;
hasSegment?: boolean;
translucent?: boolean;
transparent?: boolean;
}

interface Left {
style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
}

interface Body {
style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
}

interface Right {
style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
}

/**
* see Widget FooterTab.js
*/
interface FooterTab {
style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
}
/**
* see Widget Footer.js
*/
interface Footer {
style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
}
/**
* see Widget Title.js
*/
interface Title {
style?: ReactNative.TextStyle;
}
/**
* see Widget Subtitle/index.js
*/
interface Subtitle {
style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
}
/**
* see Widget Container.js
*/
interface Container {
/**
* The theme prop can be applied to any component of NativeBase.
*/
theme?: Object;
style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
}
/**
* see Widget Content.js
*/
interface Content {
/**
* The theme prop can be applied to any component of NativeBase.
*/
refreshing?: boolean;
refreshControl?: object;
theme?: Object;
padder?: boolean;
disableKBDismissScroll?: boolean;
enableResetScrollToCoords?: boolean;
contentOffset?: Object;
scrollEnabled?: boolean;
style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
contentContainerStyle?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
keyboardShouldPersistTaps?: string;
keyboardDismissMode?: string;
}
/**
* see Widget Button.js
*/
interface Button extends ReactNative.TouchableOpacityProperties, BsStyle {
/**
* Defines button style
*/
style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
/**
* Defines button text style
*/
textStyle?: ReactNative.TextStyle;
/**
* Block level button
*/
block?: boolean;
/**
* Vertical button
*/
vertical?: boolean;
/**
* Button with badges
*/
badge?: boolean;
//primary?: boolean,
/**
* Gives you effect of Icon-buttons.
* To have button with transparent background, include this prop.
*/
transparent?: boolean;
//success?: boolean,
//danger?: boolean,
// warning?: boolean,
//info?: boolean,
color?: string;
/**
* Applies outline button style.
*/
bordered?: boolean;
/**
* Renders button with slightly round shaped edges.
*/
rounded?: boolean;
/**
* For large size button
*/
large?: boolean;
/**
* For small size button
*/
small?: boolean;
/**
* Used for Icon alignment.
* Aligns icon to the left in button.
* By default, icons are aligned to the left in button.
*/
iconLeft?: boolean;
/**
* Used for Icon alignment.
* Aligns icon to the right in button.
*/
iconRight?: boolean;
/**
* Used to enable/disable icons
* Icons align in the center of the bu8tton.
*/
icon?: boolean;
/**
* Disables onPress option for button
*/
disabled?: boolean;
active?: boolean;
inputButton?: boolean;
full?: boolean;
light?: boolean;
dark?: boolean;
/**
* [android] colored ripple effect
*/
androidRippleColor?: string;
/**
* Segments
*/
first?: boolean;
last?: boolean;
}
/**

* see Widget List.js
*/
interface List extends ReactListViewProperties {
listBorderColor?: string;
listDividerBg?: string;
listNoteColor?: string;
listItemPadding?: number;
listNoteSize?: number;
inset?: boolean;
/**
* Array of data chunks to render iteratively.
*/
dataArray?: Array<any>;
renderRow?: (
rowData: any,
sectionID: string | number,
rowID: string | number,
highlightRow?: boolean
) => React.ReactElement<any>;
dataSource?: ReactNative.ListViewDataSource;
disableLeftSwipe?: boolean;
disableRightSwipe?: boolean;
rightOpenValue?: number;
leftOpenValue?: number;
renderRightHiddenRow?: (
rowData: any,
sectionID: string | number,
rowID: string | number,
rowMap?: any
) => React.ReactElement<any>;
renderLeftHiddenRow?: (
rowData: any,
sectionID: string | number,
rowID: string | number,
rowMap?: any
) => React.ReactElement<any>;
rowHasChanged?: (r1: any, r2: any) => boolean;
onRowOpen?: Function;
onRowClose?: Function;
onRowDidOpen?: Function;
onRowDidClose?: Function;
swipeToOpenPercent?: number;
closeOnRowBeginSwipe?: boolean;
}
/**
* see Widget ListItem.js
*/
interface ListItem extends ReactNative.TouchableOpacityProperties {
header?: boolean;
noBorder?: boolean;
noIndent?: boolean;
/**
* Aligns icon to the right of ListItem.
* Default: false
*/
iconRight?: boolean;
/**
* Aligns icon to the left of ListItem.
* Default: true
*/
iconLeft?: boolean;
icon?: boolean;
avatar?: boolean;
thumbnail?: boolean;
button?: boolean;
/**
* Helps to organize and group the list items.
*/
itemDivider?: boolean;
/**
* Sub caption for List Item.
*/

note?: string;
itemHeader?: boolean;
first?: boolean;
last?: boolean;
selected?: boolean;
/**
* [android] colored ripple effect
*/
androidRippleColor?: string;
touchableHighlightStyle?: ReactNative.ViewStyle;
}

interface Separator {
bordered?: boolean;
style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
}

/**
* see Widget CardItem.js
*/
interface CardItem extends ReactNative.TouchableOpacityProperties {
header?: boolean;
footer?: boolean;
cardBody?: boolean;
button?: boolean;
bordered?: boolean;
}
/**
* Override React ListViewProperties
*/
interface ReactListViewProperties
extends ReactNative.ScrollViewProperties,
React.Props<ReactNative.ListView> {
/**
* Flag indicating whether empty section headers should be rendered.
* In the future release empty section headers will be rendered by
* default, and the flag will be deprecated. If empty sections are not
* desired to be rendered their indices should be excluded from
* sectionID object.
*/
enableEmptySections?: boolean;

/**
* How many rows to render on initial component mount. Use this to make
* it so that the first screen worth of data apears at one time instead of
* over the course of multiple frames.
*/
initialListSize?: number;

/**
* (visibleRows, changedRows) => void
*
* Called when the set of visible rows changes. `visibleRows` maps
* { sectionID: { rowID: true }} for all the visible rows, and
* `changedRows` maps { sectionID: { rowID: true | false }} for the rows
* that have changed their visibility, with true indicating visible, and
* false indicating the view has moved out of view.
*/
onChangeVisibleRows?: (
visibleRows: Array<{ [sectionId: string]: { [rowID: string]: boolean } }>,
changedRows: Array<{ [sectionId: string]: { [rowID: string]: boolean } }>
) => void;

/**
* Called when all rows have been rendered and the list has been scrolled
* to within onEndReachedThreshold of the bottom. The native scroll
* event is provided.
*/
onEndReached?: () => void;

/**
* Threshold in pixels for onEndReached.
*/
onEndReachedThreshold?: number;

/**
* Number of rows to render per event loop.
*/
pageSize?: number;

/**
* A performance optimization for improving scroll perf of
* large lists, used in conjunction with overflow: 'hidden' on the row
* containers. Use at your own risk.
*/
removeClippedSubviews?: boolean;

/**
* () => renderable
*
* The header and footer are always rendered (if these props are provided)
* on every render pass. If they are expensive to re-render, wrap them
* in StaticContainer or other mechanism as appropriate. Footer is always
* at the bottom of the list, and header at the top, on every render pass.
*/
renderFooter?: () => React.ReactElement<any>;

/**
* () => renderable
*
* The header and footer are always rendered (if these props are provided)
* on every render pass. If they are expensive to re-render, wrap them
* in StaticContainer or other mechanism as appropriate. Footer is always
* at the bottom of the list, and header at the top, on every render pass.
*/
renderHeader?: () => React.ReactElement<any>;

/**
* (rowData, sectionID, rowID) => renderable
* Takes a data entry from the data source and its ids and should return
* a renderable component to be rendered as the row. By default the data
* is exactly what was put into the data source, but it's also possible to
* provide custom extractors.
*/
renderRow?: (
rowData: any,
sectionID: string | number,
rowID: string | number,
highlightRow?: boolean
) => React.ReactElement<any>;

/**
* A function that returns the scrollable component in which the list rows are rendered.
* Defaults to returning a ScrollView with the given props.
*/
renderScrollComponent?: (
props: ReactNative.ScrollViewProperties
) => React.ReactElement<ReactNative.ScrollViewProperties>;

/**
* (sectionData, sectionID) => renderable
*
* If provided, a sticky header is rendered for this section. The sticky
* behavior means that it will scroll with the content at the top of the
* section until it reaches the top of the screen, at which point it will
* stick to the top until it is pushed off the screen by the next section
* header.
*/
renderSectionHeader?: (sectionData: any, sectionId: string | number) => React.ReactElement<any>;

/**
* (sectionID, rowID, adjacentRowHighlighted) => renderable
* If provided, a renderable component to be rendered as the separator below each row
* but not the last row if there is a section header below.
* Take a sectionID and rowID of the row above and whether its adjacent row is highlighted.
*/
renderSeparator?: (
sectionID: string | number,
rowID: string | number,
adjacentRowHighlighted?: boolean
) => React.ReactElement<any>;

/**
* How early to start rendering rows before they come on screen, in
* pixels.
*/
scrollRenderAheadDistance?: number;

/**
* An array of child indices determining which children get docked to the
* top of the screen when scrolling. For example, passing
* `stickyHeaderIndices={[0]}` will cause the first child to be fixed to the
* top of the scroll view. This property is not supported in conjunction
* with `horizontal={true}`.
* @platform ios
*/
stickyHeaderIndices?: number[];

ref?: React.Ref<ReactNative.ListView & ReactNative.ScrollView & ReactNative.View>;
}
/**
* see Widget Card.js
*/
interface Card extends ReactNative.ViewProperties {
dataArray?: Array<any>;
style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
ref?: React.Ref<ReactNative.ViewProperties | ReactListViewProperties>;
transparent?: boolean;
noShadow?: boolean;

// Adding ListView properties
// dataSource?: ReactNative.ListViewDataSource;
enableEmptySections?: boolean;
initialListSize?: number;
onChangeVisibleRows?: (
visibleRows: Array<{ [sectionId: string]: { [rowID: string]: boolean } }>,
changedRows: Array<{ [sectionId: string]: { [rowID: string]: boolean } }>
) => void;
onEndReached?: () => void;
onEndReachedThreshold?: number;
pageSize?: number;
removeClippedSubviews?: boolean;
renderFooter?: () => React.ReactElement<any>;
renderHeader?: () => React.ReactElement<any>;
renderRow?: (
rowData: any,
sectionID: string | number,
rowID: string | number,
highlightRow?: boolean
) => React.ReactElement<any>;
renderScrollComponent?: (props: ReactNative.ScrollViewProperties) => React.ReactElement<ReactNative.ScrollViewProperties>;
renderSectionHeader?: (sectionData: any, sectionId: string | number) => React.ReactElement<any>;
renderSeparator?: (
sectionID: string | number,
rowID: string | number,
adjacentRowHighlighted?: boolean
) => React.ReactElement<any>;
scrollRenderAheadDistance?: number;
stickyHeaderIndices?: number[];
stickySectionHeadersEnabled?: boolean;
}
/**
* react-native-easy-grid
*/
interface Grid extends ReactNative.ViewProperties { }
interface Row extends ReactNative.ViewProperties {
size?: number;
}
interface Col extends ReactNative.ViewProperties {
size?: number;
}
/**
* see Widget InputGroup.js
*/
interface InputGroup extends ReactNative.ViewProperties {
/**
* Wraps the textbox with predefined border options.
* Default: underline
*/
borderType?: "rounded" | "regular" | "underline";
toolbar?: boolean;
atoolbar?: boolean;
/**
* If true, the icon in the input text box appears to the right.
* Default: true
*/
iconRight?: boolean;
/**
* The border color of textbox for valid input.
*/
success?: boolean;
/**
* The border color of textbox for invalid input.
*/
error?: boolean;
/**
* Disables inputting data.
*/
disabled?: boolean;
regular?: boolean;
underline?: boolean;
rounded?: boolean;
}
/**
* see Widget Input.js
*/
interface Input extends ReactNative.TextInputProperties {
label?: string;
/**
* Label placed to the left of the input element.
* When the user enters text, the label does not hide.
* This can also be used along with placeholder.
*/
inlineLabel?: boolean;
/**
* Places the label on top of the input element which appears like a stack.
* This can also be used along with placeholder.
*/
stackedLabel?: boolean;
/**
* Disables inputting data.
*/
disabled?: boolean;
getRef?: React.Ref<ReactNative.TextInput>;
}
/**
* see Widget Textarea.js
*/
interface Textarea extends ReactNative.TextInputProperties {
rowSpan: number;
}

interface Label {
style?: ReactNative.TextStyle;
}
/**
* see Widget Icon.js
*/
interface Icon {
name: string;
type?: "Entypo" | "EvilIcons" | "Feather" | "FontAwesome" | "Foundation" | "Ionicons" | "MaterialCommunityIcons" | "MaterialIcons" | "Octicons" | "SimpleLineIcons" | "Zocial";
// TODO position attribute of ReactNative.FlexStyle hasn't another position values without "absolute" and "relative"
style?: any;
onPress?: (e?: any) => any;
active?: boolean;
ios?: string;
android?: string;
color?: string;
fontSize?: number;
}
/**
* see Widget Icon.js
*/
interface Thumbnail extends ReactNative.ImageProperties {
/**
* Dimension of thumbnail.
* Default: 30
*/
size?: number;
/**
* Represents shape of thumbnail.
* By default thumbnail is circle in shape.
*/
circular?: boolean;
/**
* Represents shape of thumbnail.
* By default thumbnail is circle in shape.
*/
square?: boolean;
small?: boolean;
large?: boolean;
}
/**
* see Widget Spinner.js
*/
interface Spinner extends ReactNative.ActivityIndicatorProperties {
inverse?: boolean;
}
/**
* see Widget CheckBox.js
*/
interface CheckBox extends ReactNative.TouchableOpacityProperties {
checked?: boolean;
color?: string;
}
/**
* see Widget CheckBox.js
*/
interface Radio extends ReactNative.TouchableOpacityProperties {
selected?: boolean;
}
/**
* see Widget ProgressBar.js
*/
interface ProgressBar {
progress?: number;
color?: string;
inverse?: boolean;
}
/**
* vendor react-native-drawer
*/
interface DrawerStyles {
drawer?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
main?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
drawerOverlay?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
mainOverlay?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
}
interface Drawer {
acceptDoubleTap?: boolean;
acceptPan?: boolean;
acceptTap?: boolean;
captureGestures?: boolean;
children?: any;
open?: boolean;
closedDrawerOffset?: number;
content?: any;
deviceScreen?: ReactNative.ScaledSize;
disabled?: boolean;
initializeOpen?: boolean;
negotiatePan?: boolean;
onClose?: Function;
onCloseStart?: Function;
onOpen?: Function;
onOpenStart?: Function;
openDrawerOffset?: number;
openDrawerThreshold?: number;
panCloseMask?: number;
panOpenMask?: number;
panStartCompensation?: boolean;
relativeDrag?: boolean;
side?: "left" | "right";
styles?: DrawerStyles;
tapToClose?: boolean;
tweenDuration?: number;
tweenEasing?: string;
tweenHandler?: Function;
type?: "overlay" | "static" | "displace";
}
interface ScrollableTab {
goToPage?: Function;
activeTab?: number;
tabs?: Array<any>;
backgroundColor?: string;
activeTextColor?: string;
inactiveTextColor?: string;
scrollOffset?: number;
style?: ReactNative.ViewStyle;
tabStyle?: ReactNative.ViewStyle;
tabsContainerStyle?: ReactNative.ViewStyle;
renderTab?: Function;
underlineStyle?: ReactNative.ViewStyle;
onScroll?: Function;
}

/**
* see Widget Tabs.js
*/
interface Tabs {
renderTabBar?: Function;
tabBarPosition?: "top" | "bottom";
edgeHitWidth?: number;
springTension?: number;
springFriction?: number;
onChangeTab?: Function;
locked?: boolean;
initialPage?: number;
tabBarUnderlineStyle?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
tabBarBackgroundColor?: string;
tabBarActiveTextColor?: string;
tabBarInactiveTextColor?: string;
tabBarTextStyle?: ReactNative.TextStyle;
tabContainerStyle?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
contentProps?: ReactNative.ScrollViewProperties;
}

interface Tab {
heading: React.ReactElement<TabHeading> | string;
tabStyle?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
activeTabStyle?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
textStyle?: ReactNative.TextStyle;
activeTextStyle?: ReactNative.TextStyle;
}
interface TabHeading {
tabStyle?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
activeTabStyle?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
textStyle?: ReactNative.TextStyle;
activeTextStyle?: ReactNative.TextStyle;
style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
}

interface Item {
fixedLabel?: boolean;
floatingLabel?: boolean;
inlineLabel?: boolean;
stackedLabel?: boolean;
placeholderLabel?: boolean;
bordered?: boolean;
regular?: boolean;
underline?: boolean;
rounded?: boolean;
disabled?: boolean;
error?: boolean;
placeholder?: string;
secureTextEntry?: boolean;
success?: boolean;
last?: boolean;
style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
}

interface Form {
style?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
}

interface Fab {
active?: boolean;
direction?: "down" | "up" | "left" | "right";
containerStyle?: ReactNative.ViewStyle | Array<ReactNative.ViewStyle>;
onPress?: () => void;
position?: "topLeft" | "topRight" | "bottomLeft" | "bottomRight";
style?: ReactNative.ViewStyle;
}

interface Image extends ReactNative.TextProperties { }

interface Segment extends ReactNative.TextProperties { }

interface Root extends ReactNative.TextProperties { }

interface StyleProvider {
style?: any;
}
interface SwipeRow {
leftOpenValue?: number;
rightOpenValue?: number;
closeOnRowPress?: boolean;
disableLeftSwipe?: boolean;
disableRightSwipe?: boolean;
recalculateHiddenLayout?: boolean;
preview?: boolean;
previewDuration?: number;
directionalDistanceChangeThreshold?: number;
swipeToOpenPercent?: number;
stopLeftSwipe?: number;
stopRightSwipe?: number;
onRowOpen?: Function;
onRowClose?: Function;
left?: React.ReactElement<any>;
body?: React.ReactElement<any>;
right?: React.ReactElement<any>;
style?: ReactNative.ViewStyle;
}

interface Accordion {
dataArray: Array<any>;
headerStyle?: ReactNative.ViewStyle;
contentStyle?: ReactNative.ViewStyle;
renderHeader?: (item: any, expanded: boolean) => React.ReactElement<any>;
renderContent?: (item: any) => React.ReactElement<any>;
icon?: string;
expandedIcon?: string;
iconStyle?: ReactNative.TextStyle;
expandedIconStyle?: ReactNative.TextStyle;
style?: ReactNative.ViewStyle;
}

interface DatePicker {
defaultDate?: Date;
minimumDate?: Date;
maximumDate?: Date;
locale?: string;
placeHolderText?: string;
textStyle?: ReactNative.TextStyle;
placeHolderTextStyle?: ReactNative.TextStyle;
androidMode?: "calendar" | "spinner" | "default";
timeZoneOffsetInMinutes?: number;
modalTransparent?: boolean;
animationType?: "slide" | "fade" | "none";
disabled?: boolean;
onDateChange?: (date: any) => void;
formatChosenDate?: (date: any) => void;
}
}

// Export definitions
/**
* NativeBase.Container
*
* Provides its own frame component, named after <Container>.
* All the components should be included within the Container.
* Container takes mainly two components: <Header> and <Content>.
* Container comes with its predefined stylesheet, with an added advantage of accepting user-defined styles.
* Usage of Container's Header component is very similar to your HTML <head>.
* The Content component of Container is nothing but the body section of your screen.
*/
export class Container extends React.Component<NativeBase.Container, any> { }
/**
* NativeBase.Header
*
* NativeBase component that renders as Header (navbar) for your screen.
* There can be a single Header component into your Container.
* To have Header for your screen, include <Header> component within <Container>.
* NativeBase gives you flexibility to define your Header component anywhere in the bounds of Container.
* Header takes input as: Button and Title (Text)
* The components those are defined within <Header> will be rendered in the same order that you define them.
* Header provides you with stylesheet.
* User can add custom styles while defining <Header> within their app.
* Replacing Component: React Native <View>
*/
export class Header extends React.Component<NativeBase.Header, any> { }
/**
* NativeBase.Content
*
* This is a NativeBase component which renders as body element of your screen.
* Each screen can have only one <Content> component and can be defined anywhere within the Container.
* Content takes in the whole collection of React Native and NativeBase components.
* Content provides you with stylesheet.
* User can add custom styles while defining <Content> within their app.
* Replacing Component: React Native <ScrollView>
*/
/**
* NativeBase.Left
*/
export class Left extends React.Component<NativeBase.Left, any> { }
/**
* NativeBase.Right
*/
export class Right extends React.Component<NativeBase.Right, any> { }
/**
* NativeBase.Body
*/
export class Body extends React.Component<NativeBase.Body, any> { }

export class Content extends React.Component<NativeBase.Content, any> { }
/**
* NativeBase.FooterTab
*/
export class FooterTab extends React.Component<NativeBase.FooterTab, any> { }
/**
* NativeBase.Footer
*/
export class Footer extends React.Component<NativeBase.Footer, any> { }
/**
* NativeBase.Title
*/
export class Title extends React.Component<NativeBase.Title, any> { }

export class Subtitle extends React.Component<NativeBase.Subtitle, any> { }

/**
* NativeBase.Button
*
* Provides Button component which is readily not available in React Native.
* Supports React Native app on both iOS and Android devices.
* Button component takes input such as: Text, Icon, Text with Icon.
* NativeBase gives you privilege to customize the props of this component.
* Example: To have custom style for button, include them in style prop of button.
* Intakes user-defined styles.
* NativeBase has provided its users with enormous list of props that can be used with Button.
* Replacing Component: React Native <TouchableOpacity>
*/
export class Button extends React.Component<NativeBase.Button, any> { }
/**
* NativeBase.View
*/
export class View extends React.Component<NativeBase.View, any> { }
/**
* NativeBase.Text
*/
export class Text extends React.Component<NativeBase.Text, any> { }
/**
* NativeBase.Switch
*/
export class Switch extends React.Component<NativeBase.Switch, any> { }
/**
* NativeBase.Picker
*/
export class Picker extends React.Component<NativeBase.Picker, any> { }
namespace Picker {
export class Item extends React.Component<ReactNative.PickerItemProperties, any> { }
}
/**
* NativeBase.List
*
* A base component for specifying lists of information. List must contain one or more list elements.
* Props provide configurability for several features. Provides a number of attributes that follows styling and interaction guidelines for each platform, so that they are intuitive for users to interact with.
*/
export class List extends React.Component<NativeBase.List, any> { }
/**
* NativeBase.ListItem
*
* • This is the child component of List.
* • Defines a list item.
* • Adds border at bottom of each ListItem.
* • List takes any number of ListItem.
*/
export class ListItem extends React.Component<NativeBase.ListItem, any> { }
/**
* NativeBase.H1
*/
export class H1 extends React.Component<NativeBase.H1, any> { }
/**
* NativeBase.H2
*/
export class H2 extends React.Component<NativeBase.H2, any> { }
/**
* NativeBase.H3
*/
export class H3 extends React.Component<NativeBase.H3, any> { }
/**
* NativeBase.Row
*/
export class Row extends React.Component<NativeBase.Row, any> { }
/**
* NativeBase.Col
*/
export class Col extends React.Component<NativeBase.Col, any> { }
/**
* NativeBase.Grid
*/
export class Grid extends React.Component<NativeBase.Grid, any> { }
/**
* NativeBase.InputGroup
*
* A foundational component for inputting text into the app via a keyboard.
* Props provide configurability for several features, such as auto-correction, auto-capitalization, placeholder text, and different keyboard types, such as a numeric keypad.
* Provides a number of attributes that follows styling and interaction guidelines for each platform, so that they are intuitive for users to interact with.
*/
export class InputGroup extends React.Component<NativeBase.InputGroup, any> {
public static propTypes: any;
}
/**
* NativeBase.Input
*/
export class Input extends React.Component<NativeBase.Input, any> { }
/**
* NativeBase.Textarea
*/
export class Textarea extends React.Component<NativeBase.Textarea, any> { }
/**
* NativeBase.Icon
*/
export class Icon extends React.Component<NativeBase.Icon, any> { }
/**
* NativeBase.Thumbnail
*
* Thumbnail component works very similar to Image.
* It helps you to showcase an image with variuos dimensions and shapes.
* By default, Thumbnail renders an image in circular shape.
*/
export class Thumbnail extends React.Component<NativeBase.Thumbnail, any> { }
/**
* NativeBase.Card
*
* Card is a flexible and extensible content container.
* It includes options for headers and footers, a wide variety of content, contextual background colors, and powerful display options.
* NativeBase Cards support a wide variety of content, including images, text, list groups, links, and more.
* Mix and match multiple content types to create the card you need.
*/
export class Card extends React.Component<NativeBase.Card, any> { }
/**
* NativeBase.CardItem
*
* This is the child component of Card. Works very similar to the list items of list. Card takes any number of CardItem.
* CardItem component takes input such as: Text, Button, Image, Thumbnail, Icon.
*/
export class CardItem extends React.Component<NativeBase.CardItem, any> { }
/**
* NativeBase.CardSwiper
*
* Looking at data one piece at a time is more efficient when you consider people you might want to date, restaurants, streaming music, or local events you might want to check out.
* NativeBase Card Swiper helps you evaluate one option at a time, instead of selecting from a set of options.
*/
export class CardSwiper extends React.Component<NativeBase.CardSwiper, any> { }
/**
* NativeBase.DeckSwiper
*/
export class DeckSwiper extends React.Component<NativeBase.DeckSwiper, any> { }
/**
* NativeBase.Badge
*
* All of us must have seen notification badges somewhere, such as on smart phones or facebook.
*/
export class Badge extends React.Component<NativeBase.Badge, any> { }
/**
* NativeBase.Spinner
*/
export class Spinner extends React.Component<NativeBase.Spinner, any> { }
/**
* NativeBase.CheckBox
*/
export class CheckBox extends React.Component<NativeBase.CheckBox, any> { }
/**
* NativeBase.Radio
*/
export class Radio extends React.Component<NativeBase.Radio, any> { }
/**
* NativeBase.ProgressBar
*/
export class ProgressBar extends React.Component<NativeBase.ProgressBar, any> { }
/**
* NativeBase.Drawer
*/
export class Drawer extends React.Component<NativeBase.Drawer, any> { }
/**
* NativeBase.ScrollableTab
*/
export class ScrollableTab extends React.Component<NativeBase.ScrollableTab, any> { }
/**
* NativeBase.Tabs
*
* Tabs are a horizontal region of buttons or links that allow for a consistent navigation experience between screens.
* It can contain any combination of text and icons, and is a popular method for enabling mobile navigation.
*/
export class Tabs extends React.Component<NativeBase.Tabs, any> { }
/**
* NativeBase.Tab
*/
export class Tab extends React.Component<NativeBase.Tab, any> { }

export class TabHeading extends React.Component<NativeBase.TabHeading, any> { }
/**
* NativeBase.Item
*/
export class Item extends React.Component<NativeBase.Item, any> { }
/**
* NativeBase.Form
*/
export class Form extends React.Component<NativeBase.Form, any> { }
/**
* NativeBase.Fab
*/
export class Fab extends React.Component<NativeBase.Fab, any> { }

export class Separator extends React.Component<NativeBase.Separator, any> { }

export class Label extends React.Component<NativeBase.Label, any> { }

export class StyleProvider extends React.Component<NativeBase.StyleProvider, any> { }

export class ActionSheet {
static show: (
configuration: {
options: string[] | Array<{ text: string, icon?: string, iconColor?: string }>;
cancelButtonIndex?: number;
destructiveButtonIndex?: number;
title?: string;
},
onSelect: (index: number) => void
) => void;
}

export class Image extends React.Component<NativeBase.Image, any> { }

export class Segment extends React.Component<NativeBase.Segment, any> { }

export class Root extends React.Component<NativeBase.Root, any> { }

export class SwipeRow extends React.Component<NativeBase.SwipeRow, any> { }

export class Toast {
public static show(configuration: {
text: string;
buttonText?: string;
position?: "top" | "bottom" | "center";
type?: "danger" | "success" | "warning";
duration?: number;
onClose?: (reason: "user" | "timeout" | "functionCall") => any;
textStyle?: ReactNative.TextStyle;
buttonTextStyle?: ReactNative.TextStyle;
buttonStyle?: ReactNative.ViewStyle;
}): void;
}

export class Accordion extends React.Component<NativeBase.Accordion, any>{ }

export class DatePicker extends React.Component<NativeBase.DatePicker, any> { }
}

How to install JDK on Ubuntu Cloud VM quickly

1. 添加apt-get 的repository源

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update

2. 安装Oracle Java Installer

sudo apt-get install oracle-java8-installer

系统会将installer 默认下载到以下位置。

/var/cache/oracle-java8-installer

3. 设置安装的JDK为系统默认JDK

sudo update-java-alternatives -s java-8-oracle