本文实例讲述了微信小程序tabBar用法。分享给大家供大家参考，具体如下：
1、效果展示
2、原理：在app.json中配置tabBar属性
{
"pages": [
"index",
"picDisplay"
],
"window": {
"navigationBarBackgroundColor": "#ffffff",
"navigationBarTextStyle": "black",
"navigationBarTitleText": "首页",
"backgroundColor": "#eeeeee",
"backgroundTextStyle": "light",
"enablePullDownRefresh": false
},
"tabBar": {
"color":"#666666",
"selectedColor":"#06bd04",
"list": [{
"pagePath": "index",
"text": "首页",
"iconPath": "images/index.png",
"selectedIconPath": "images/indexHL.png"
},{
"pagePath": "picDisplay",
"text": "图片展示",
"iconPath": "images/picDisplay.png",
"selectedIconPath": "images/picDisplayHL.png"
}]
}
}
3、关键代码
"tabBar": {
"color":"#666666",
"selectedColor":"#06bd04",
"list": [{
"pagePath": "index",
"text": "首页",
"iconPath": "images/index.png",
"selectedIconPath": "images/indexHL.png"
},{
"pagePath": "picDisplay",
"text": "图片展示",
"iconPath": "images/picDisplay.png",
"selectedIconPath": "images/picDisplayHL.png"
}]
}
4、操作方法
新建一个项目，打开app.json文件，将关键代码复制到"window":{},后面，注意window的大括号前加逗号，如下图
配置tabBar属性值
"tabBar": {
//设置tabBar文字默认颜色
"color":"#666666",
//设置tabBar文字被选中是的颜色
"selectedColor":"#06bd04",
//tab列表，数组类型，改数组内至少要有两个但不大于5个的tab对象
"list": [{
//设置tab跳转页面链接
"pagePath": "index",
//设置tab上的文字
"text": "首页",
//设置tab上的默认图标
"iconPath": "images/index.png",
//设置tab被选中时的图标
"selectedIconPath": "images/indexHL.png"
},{
"pagePath": "picDisplay",
"text": "图片展示",
"iconPath": "images/picDisplay.png",
"selectedIconPath": "images/picDisplayHL.png"
}]
}
tabBar的5种常用属性与配置说明：
1) color:未选择字体颜色
2) selectedColor:选择字体颜色
3) borderStyle:tabbar上方线的颜色white(仅支持白色和黑色)
4) backgroundColor