How do mini program users return to the home page after authorization?-Mini Program Development-php.cn

How do mini program users return to the home page after authorization?

angryTom

Release： 2020-03-20 17:44:40

Original

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How do mini program users return to the home page after authorization?

How do mini program users return to the homepage after authorization

There are many implementation methods, as follows:

1. Use wx.navigateBack(Object object) to close the current page and return to the previous page or multi-level page. You can get the current page stack through getCurrentPages and decide how many levels need to be returned.

Sample code:

// 此处是A页面
wx.navigateTo({
  url: 'B?id=1'
})

// 此处是B页面
wx.navigateTo({
  url: 'C?id=1'
})

// 在C页面内 navigateBack，将返回A页面
wx.navigateBack({
  delta: 2
})

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2. Use wx.navigateTo(Object object) to jump to the page, keep the current page, and jump to a page in the application. But you cannot jump to the tabbar page.

Sample code:

wx.navigateTo({
  url: 'test?id=1',
  events: {
    // 为指定事件添加一个监听器，获取被打开页面传送到当前页面的数据
    acceptDataFromOpenedPage: function(data) {
      console.log(data)
    },
    someEvent: function(data) {
      console.log(data)
    }
    ...
  },
  success: function(res) {
    // 通过eventChannel向被打开页面传送数据
    res.eventChannel.emit('acceptDataFromOpenerPage', { data: 'test' })
  }
})

//test.js
Page({
  onLoad: function(option){
    console.log(option.query)
    const eventChannel = this.getOpenerEventChannel()
    eventChannel.emit('acceptDataFromOpenedPage', {data: 'test'});
    eventChannel.emit('someEvent', {data: 'test'});
    // 监听acceptDataFromOpenerPage事件，获取上一页面通过eventChannel传送到当前页面的数据
    eventChannel.on('acceptDataFromOpenerPage', function(data) {
      console.log(data)
    })
  }
})

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3. Use wx.redirectTo(Object object) to close the current page and jump to a page within the application. But jumping to the tabbar page is not allowed.

Code example:

wx.redirectTo({
  url: 'test?id=1'
})

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4. Use wx.reLaunch(Object object)Close all pages and open a page within the application

Code example:

wx.reLaunch({
  url: 'test?id=1'
})
// test
Page({
  onLoad (option) {
    console.log(option.query)
  }
})

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Recommended learning: Small program development

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