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A brief introduction to V1 and V2 decorators in HarmonyOS development
- In HarmonyOS development, V1 and V2 decorators are used for defining component behaviors and data flow.
- V1 Decorator includes @State for managing component states, @prop for parent-child data transmission, and @link for two-way communication.
- V1 also features @ObjectLink/@Observed/@Track for partial UI refresh and @Provide/@Consume for one-way value transfer.
- V2 Decorator includes @local which is equivalent to @State, @param for data transfer, and @Require for mandatory passing.
- V2 introduces @Monitor for deep monitoring, supporting changes in nested classes and arrays.
- @Event, @Watch, and @Monitor are used for implementing communication between parent and child components.
- AppStorage in V2 allows for multiple AppStorages with @ObservedV2 for detailed monitoring capabilities.
- Custom component mixing in V1 and V2 decorators has limitations on variable transfer and usage.
- Migration from V1 to V2 decorators in HarmonyOS development involves using appropriate decorators and handling data compatibility.
- Developers should follow guidelines for proper implementation and transition between V1 and V2 decorators.
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