harmony 鸿蒙Overview of Other State Management Features
Overview of Other State Management Features
In addition to the component state and application state management mentioned in previous topics, ArkTS also provides \@Watch, $$ and \@Track for state management.
\@Watch listens for the changes of state variables.
$$operator provides a TS variable by-reference to a built-in component so that the variable value and the internal state of that component are kept in sync.
\@Track applies to attribute-level updates of class objects. When a property decorated by \@Track changes, only the UI associated with the property is updated.
Freezing a Custom Component represents that the component is inactive and its state variable does not respond to updates.
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