微信小程序开发—(一)全局配置

落日映苍穹つ 2021-09-12 06:02 878阅读 0赞

一.app.json

使用app.json文件来对微信小程序进行全局配置，决定页面文件的路径、窗口表现、设置网络超时时间、设置多 tab 等.

![20170427133926134][]

注意在.json不能注释，否则会出错。

二.工具栏tabBar

如果我们的小程序是一个多 tab 应用（客户端窗口的底部或顶部有 tab 栏可以切换页面），那么我们可以通过 tabBar 配置项指定 tab 栏的表现，以及 tab 切换时显示的对应页面。

tabBar 是一个数组，只能配置最少2个、最多5个 tab，tab 按数组的顺序排序

![20170427113133649][]

![Center][]

![20170427113229322][]

app.json中

{
    	"pages": ["pages/index/index", 
    	           "pages/coming/coming",
    	           "pages/search/search",
    	           "pages/top/top"
             ],
    	"window": {
    		"navigationBarBackgroundColor": "#47a86c",
    	    "navigationBarTextStyle": "white",
    	    "navigationBarTitleText":  "小程序案例",
    	    "backgroundColor": "#fff",
    	    "backgroundTextStyle": "dark"
    	},
    	"tabBar": {
    		"color": "#686868",
    		"selectedColor": "#47a86c",
    		"backgroundColor": "#fff",
    		"list": [{
    			"pagePath": "pages/index/index",
    			"iconPath": "dist/images/popular_icon.png",
          		"selectedIconPath": "dist/images/popular_active_icon.png",
    			"text": "热映"
    		}, 
    		{
    			"pagePath": "pages/coming/coming",
    			"iconPath": "dist/images/coming_icon.png",
          		"selectedIconPath": "dist/images/coming_active_icon.png",
    			"text": "待映"
    		},
    		{
    			"pagePath": "pages/search/search",
    			"iconPath": "dist/images/search_icon.png",
          		"selectedIconPath": "dist/images/search_active_icon.png",
    			"text": "搜索"
    		},
    		{
    			"pagePath": "pages/top/top",
    			"iconPath": "dist/images/top_icon.png",
          		"selectedIconPath": "dist/images/top_active_icon.png",
    			"text": "口碑"
    		}]
    	},
    	"networkTimeout": {
    		"request": 10000,
    		"downloadFile": 10000
    	},
    	"debug": true
    }

![20170427140033412][]

图标可以放在与pages同级，文件命名可是自定。

![20170427140436558][]

app.json中其他属性： [可以查看手册，里面有详解][Link 1]

[20170427133926134]: /images/20210813/23d285eff9e24a0890ed7a9fd94e350d.png
[20170427113133649]: /images/20210813/c5339bb4a04d4e8a9818775c8b305510.png
[Center]: /images/20210813/f3473815855a4ebd8a116e8054dd47f3.png
[20170427113229322]: /images/20210813/0124632318934f1e9def8f978e557b8e.png
[20170427140033412]: /images/20210813/83cef96ec923470c9d0308f59575af9a.png
[20170427140436558]: /images/20210813/30d2aef7bce04a338eefff3edeb982ac.png
[Link 1]: https://mp.weixin.qq.com/debug/wxadoc/dev/framework/config.html