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Update screen-api.md

Guy Carmeli 7 lat temu
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@@ -263,7 +263,10 @@ this.props.navigator.setOnNavigatorEvent(this.onNavigatorEvent.bind(this));
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 ```
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 # Screen Visibility
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-Listen to screen visibility events in onNavigatorEvent handler:
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+`const isVisible = await this.props.navigator.isCurrentlyVisibleScreen()`
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+## Listen visibility events in onNavigatorEvent handler
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 ```js
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 export default class ExampleScreen extends Component {