## Description <p>通用定时器组件，子控件可以自定义，由`Timer`来控制计时器的相关功能</p> 本组件**不提供** 任何 UI 样式，只提供定时器功能。
npm install rn-timer通用定时器组件，子控件可以自定义，由Timer来控制计时器的相关功能
$ npm install rn-timer --save|Props|Type|Optional|default|Description|
|:--|:--|:--|:--:|:--|
|timestamp|number|❎||未来的某个时间戳(计时结束时间戳)|
| timerStep |number|✅||时间跨度,1000则为1s|
| timerUnit |number|✅|ms|(未启用)|
| binders |object|✅||值映射对|
| timerFinishedListener |func|✅||计时器计时结束的回调|
TimerExample``javascript
export default class TimerExample extends Component {
render() {
const binder = { // 值-func 映射
hour: (date: Date) => date.getUTCHours(),
min: (date: Date) => date.getMinutes(),
second: (date: Date) => date.getSeconds(),
};
return (
binders={binder}
timestamp={new Date().getTime() + 50000}
timerFinishedListener={() => {
alert('end')
}}>
// your cusotmer Timer Component
);
}
}
`
class TimerUI (Your customer component)
`javascript
import React, {Component} from 'react';
import { StyleSheet, Text, View} from 'react-native';
export default class TimerUI extends Component {
static propTypes: {
hour: React.PropTypes.number,
min: React.PropTypes.number,
second: React.PropTypes.number,
}
render() {
const {hour, min, second} = this.props
return (
{hour: ${hour}}
{min: ${min}}
{second: ${second}}
);
}
}
``
!图片