Harmonyos second training

Video tutorial 10—12

Text tutorial

Catalog

1. Creation of custom components

2. Call of custom build

3. Implementation of parent-child component communication function

4. Routing function implementation

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1. Creation of custom components

      

2. Call of custom build

1.name Property refers to the custom component name ( Not required ), Component names are case insensitive , The default is lowercase ,src Properties refer to custom components hml File path ( Required ), If not set name attribute , It is used by default hml Use the file name as the component name .

2. Event binding ： Binding subcomponent events in custom components use (on|@)child1 grammar , Passed in the child component this.$emit('child1', { params: ' Pass parameters ' }) Trigger the event and transfer the value , Parent component execution bindParentVmMethod Method and receive the parameters passed by the subcomponent .

3. Implementation of parent-child component communication function

4. Routing function implementation