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Notes on the 3rd harmonyos training in the studio

2022-06-26 03:01:00 【Eternal @ [email protected]】

Catalog

One 、 Directory structure

Two 、 Life cycle

3、 ... and 、list Components

Four 、 Routing jump

edit

5、 ... and 、swipe Components

One 、 Directory structure

Directory structure
Main concern entry--》src--》main This file
app.js Files are used for global JavaScript Logic and entire application lifecycle management .
pages The directory is used to store all component pages .
common Directory is used to store public resource files , such as ： Media resources and JS file .
i18n The directory is used to configure the content of resources in different language scenes , such as ： Apply text entry , Path... Pictures, etc , Be careful i18n Is the development retention folder , Cannot rename .

Two 、 Life cycle

Page Different state transitions in the lifecycle and their corresponding callbacks

onStart()

When the system was first created Page When an instance , Trigger the callback . For one Page example , The callback is triggered only once during its life cycle , Page After this logic will enter INACTIVE state . Developers have to rewrite the method , And configure the default display here AbilitySlice.

onActive()

Page Will be entering INACTIVE The status goes to the front desk , Then the system calls the callback .Page After that, enter ACTIVE state , This state is the state in which the application interacts with the user .Page Will remain in this state , Unless something happens that causes Page Lose focus , For example, the user clicks the back button or navigates to other Page. When something like this happens , Will trigger Page go back to INACTIVE state , The system will call onInactive() Callback . thereafter ,Page Maybe back to ACTIVE state , The system will call again onActive() Callback . therefore , Developers often need to implement in pairs onActive() and onInactive(), And in onActive() To obtain in onInactive() The released resources in .