utils.js
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/**
* Created by DEV005 on 2017/8/31.
*/
import Toast from 'react-native-root-toast';
import {
Alert,
Dimensions,
Platform,
StatusBar
} from 'react-native';
import {zoomH} from './getSize';
/**
* 冒一个时间比较短的Toast
* @param content
*/
export const xnToast = (content) => {
if (global.toast !== undefined) {
Toast.hide(toast);
};
global.toast = Toast.show(content.toString(), {
duration: Toast.durations.SHORT,
position: Toast.positions.CENTER,
shadow: true,
animation: true,
hideOnPress: true,
delay: 0
});
};
export const xnAlert = (content,okBack,cancel) => {
Alert.alert(
'',
content,
[
{text: '取消', onPress: () =>cancel&&cancel()},
{text: '确定', onPress: () =>okBack&&okBack()},
]
)
};
//是否 isIphoneX
export function isIphoneX() {
let dimen = Dimensions.get('window');
return (
Platform.OS === 'ios' &&
!Platform.isPad &&
!Platform.isTVOS &&
(dimen.height === 812 || dimen.width === 812)
);
}
//获取头部高度
export function getHeaderHeight() {
if( Platform.OS === 'android'){
return 48;
}else if(Platform.OS === 'ios') {
if(isIphoneX()){
return 88;
}else {
return 64;
}
}
}
//获取头部填充高度
export function getHeaderPadding() {
if( Platform.OS === 'android'){
return 0;
}else if(Platform.OS === 'ios') {
if(isIphoneX()){
return 44;
}else {
return 20;
}
}
}
//获取头部填充底部填充高度
export function getFooterBottom() {
if( Platform.OS === 'android'){
return 0;
}else if(Platform.OS === 'ios') {
if(isIphoneX()){
return 34;
}else {
return 0;
}
}
}
/*获取头部整体高度*/
export function getTopHeight(){
if( Platform.OS === 'android'){
return (48/zoomH) + StatusBar.currentHeight;
}else if(Platform.OS === 'ios') {
if(isIphoneX()){
return (48/zoomH) + 44;
}else {
return (48/zoomH) + 20;
}
}
};
export function xnBorderWidth() {
if(isIphoneX()){
return 1;
}else {
return 0.5;
}
}
//时间显示
export function timeShow(time) {
let timeStr = time;
if (timeStr.length == 10){
timeStr = timeStr +'000';
}
if (new Date(Number(timeStr)).toDateString() === new Date().toDateString()) {
//今天
console.log(Date(timeStr));
return "今天";
} else if (isYestday(timeStr)){
//之前
console.log(Date(timeStr));
return "昨天";
}
}
function isYestday(theDate){
let date = (new Date()); //当前时间
let today = new Date(date.getFullYear(), date.getMonth(), date.getDate()).getTime(); //今天凌晨
let yestday = new Date(today - 24*3600*1000).getTime();
return theDate.getTime() < today && yestday <= theDate.getTime();
}
const xnUtils={
xnToast:xnToast,
xnAlert:xnAlert,
isIphoneX:isIphoneX,
getHeaderHeight:getHeaderHeight,
getHeaderPadding:getHeaderPadding,
getFooterBottom:getFooterBottom,
xnBorderWidth:xnBorderWidth,
}
export default xnUtils;
//防止按钮多次触发
export const NoDoublePress = {
lastPressTime: 1,
onPress(callback){
let curTime = new Date().getTime();
if (curTime - this.lastPressTime > 1000) {
this.lastPressTime = curTime;
callback();
}
},
};