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WXProgram/miniprogram/components/navigation-bar/navigation-bar.js

106 lines
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JavaScript
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2025-10-16 21:32:16 +08:00
"use strict";
Component({
options: {
multipleSlots: true // 在组件定义时的选项中启用多slot支持
},
/**
* 组件的属性列表
*/
properties: {
extClass: {
type: String,
value: ''
},
title: {
type: String,
value: ''
},
background: {
type: String,
value: ''
},
color: {
type: String,
value: ''
},
back: {
type: Boolean,
value: true
},
loading: {
type: Boolean,
value: false
},
homeButton: {
type: Boolean,
value: false,
},
animated: {
// 显示隐藏的时候opacity动画效果
type: Boolean,
value: true
},
show: {
// 显示隐藏导航隐藏的时候navigation-bar的高度占位还在
type: Boolean,
value: true,
observer: '_showChange'
},
// back为true的时候返回的页面深度
delta: {
type: Number,
value: 1
},
},
/**
* 组件的初始数据
*/
data: {
displayStyle: ''
},
lifetimes: {
attached() {
const rect = wx.getMenuButtonBoundingClientRect();
wx.getSystemInfo({
success: (res) => {
const isAndroid = res.platform === 'android';
const isDevtools = res.platform === 'devtools';
this.setData({
ios: !isAndroid,
innerPaddingRight: `padding-right: ${res.windowWidth - rect.left}px`,
leftWidth: `width: ${res.windowWidth - rect.left}px`,
safeAreaTop: isDevtools || isAndroid ? `height: calc(var(--height) + ${res.safeArea.top}px); padding-top: ${res.safeArea.top}px` : ``
});
}
});
},
},
/**
* 组件的方法列表
*/
methods: {
_showChange(show) {
const animated = this.data.animated;
let displayStyle = '';
if (animated) {
displayStyle = `opacity: ${show ? '1' : '0'};transition:opacity 0.5s;`;
}
else {
displayStyle = `display: ${show ? '' : 'none'}`;
}
this.setData({
displayStyle
});
},
back() {
const data = this.data;
if (data.delta) {
wx.navigateBack({
delta: data.delta
});
}
this.triggerEvent('back', { delta: data.delta }, {});
}
},
});