WeChat mini program routing problem

Routing method

The triggering method of routing and the page life cycle function are as follows:
The following are the types of routing methods , Trigger timing

##onLoad, onShow Open a new page Call API wx.navigateTo or use onHideonLoad, onShow##Page redirection Call API wx.redirectTo or use componentTo return to the page, call API wx.navigateBack or use a component or user to press the return button in the upper left cornerTab switch calls API wx.switchTab or when using the component or the user switches TabRestartThe life cycle corresponding to Tab switching (take pages A and B as Tabbar pages, C is the page opened from page A, and page D is the page opened from page C):

Routing method trigger timing	Pre-routing page	Post-routing page
Initialization The first page opened by the applet
onUnload	onLoad, onShow
onUnload	onShow
	Please see the detailed explanation below for usage
Call API wx.reLaunch or use component	onUnload

Current pageAAACCDD(Enter from forwarding)D(Enter from forwarding)

Routed page	Triggered life cycle (in order)
A	Nothing happened
B	A.onHide(), B.onLoad() , B.onShow()
B(open again)	A.onHide(), B.onShow()
A	C.onUnload(), A.onShow()
B	C.onUnload(), B.onLoad(), B.onShow()
B	D.onUnload( ), c.onUnload(), B.onLoad(), B.onShow()
A	D .onUnload(), A.onLoad(), A.onShow()
B	D.onUnload( ), B.onLoad(), B.onShow()

Tips:

• navigateTo

  , redirectTo Only non-tabBar pages can be opened.

• switchTab

  Only the tabBar page can be opened.

The tabBar at the bottom of the page is determined by the page, that is, as long as the page is defined as a tabBar, there will be a tabBar at the bottom.
Call the page routing band Parameters can be obtained in onLoad of the target page.

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