小程序頁面傳值的幾種方式

1.  url傳值

 

list.wxml:

 <view class="playIcon">
    <image src="../../iconfont/play_init.png"  bindtap="playAudio" data-songid="{{song.song_id}}"></image>
</view>
 list.js:

playAudio: function (event) {
    let songid = event.currentTarget.dataset.songid;
    var that = this;
    wx.navigateTo({
      url: '/pages/listDetail/listDetail?title=' + songid,
    })
}    

listDetail.js:

 onLoad: function (options) {
    var that = this;
    console.log('options',options.title) 

}

 

 

 

2.app.globalData  設置全局變量

app.js: 設置全局變量

App({
globalData: {
userInfo: null,
host:'http://localhost:8000'
}
})
 

index.js:

const app = getApp()
// app.globalData = '這里也可以設置值',
console.log(app.globalData.host)

 

 

 

3.

wx.setStorageSync（）/wx.getStorageSync（）  將值寫在本地緩存里，最大支持10M，可以存些文本之類的，音頻視頻就算啦.這里是同步寫法，異步見開發文檔

list.js:

存值到本地緩存

wx.setStorageSync('title',data)

 

listDetail.js：

從本地緩存取值

let info = wx.getStorageSync('title')

console.log('info',info)