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addNavigationHelpers.js
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/
addNavigationHelpers.js
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/**
* @flow
*
* Helpers for navigation.
*/
import type {
NavigationAction,
NavigationProp,
NavigationParams,
} from './TypeDefinition';
import NavigationActions from './NavigationActions';
export default function<S: *>(navigation: NavigationProp<S, NavigationAction>) {
return {
...navigation,
goBack: (key?: ?string): boolean =>
navigation.dispatch(
NavigationActions.back({
key: key === undefined ? navigation.state.key : key,
})
),
navigate: (
routeName: string,
params?: NavigationParams,
action?: NavigationAction
): boolean =>
navigation.dispatch(
NavigationActions.navigate({
routeName,
params,
action,
})
),
/**
* For updating current route params. For example the nav bar title and
* buttons are based on the route params.
* This means `setParams` can be used to update nav bar for example.
*/
setParams: (params: NavigationParams): boolean =>
navigation.dispatch(
NavigationActions.setParams({
params,
key: navigation.state.key,
})
),
};
}