@react-navigation/native#InitialState TypeScript Examples

The following examples show how to use @react-navigation/native#InitialState. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: LoadAssets.tsx    From react-native-meetio with MIT License 7 votes vote down vote up 
LoadAssets = ({ assets, fonts, children }: LoadAssetsProps) => {
  const [isNavigationReady, setIsNavigationReady] = useState(!__DEV__);
  const [initialState, setInitialState] = useState<InitialState | undefined>();
  const ready = useLoadAssets(assets || [], fonts || {});
  useEffect(() => {
    const restoreState = async () => {
      try {
        const savedStateString = await AsyncStorage.getItem(
          NAVIGATION_STATE_KEY
        );
        const state = savedStateString
          ? JSON.parse(savedStateString)
          : undefined;
        setInitialState(state);
      } finally {
        setIsNavigationReady(true);
      }
    };

    if (!isNavigationReady) {
      restoreState();
    }
  }, [isNavigationReady]);

  const onStateChange = useCallback((state) => {
    AsyncStorage.setItem(NAVIGATION_STATE_KEY, JSON.stringify(state));
  }, []);
  if (!ready || !isNavigationReady) {
    return <AppLoading />;
  }
  return (
    <NavigationContainer {...{ onStateChange, initialState }}>
      {children}
    </NavigationContainer>
  );
}
Example #2
Source File: DevPersistedNavigationContainer.tsx    From mobile with Apache License 2.0 5 votes vote down vote up 
function DevPersistedNavigationContainerImpl(
  {persistKey, onStateChange, ...others}: DevPersistedNavigationContainerProps,
  forwardedRef: React.Ref<NavigationContainerRef>,
) {
  const [isReady, setIsReady] = React.useState(false);
  const [initialState, setInitialState] = React.useState<InitialState | undefined>();
  const persistInteractionRef = React.useRef<{cancel: () => void} | null>(null);
  const onStateChangeInternal = React.useCallback(
    state => {
      const persistState = async () => {
        persistInteractionRef.current = null;
        try {
          await AsyncStorage.setItem(persistKey, JSON.stringify(state));
        } catch (ex) {
          console.warn(`Failed to persist state. ${ex.message}`);
        }
      };

      if (persistInteractionRef.current !== null) {
        persistInteractionRef.current.cancel();
      }

      if (state != null) {
        persistInteractionRef.current = InteractionManager.runAfterInteractions(persistState);
      }

      if (onStateChange != null) {
        onStateChange(state);
      }
    },
    [onStateChange, persistKey],
  );

  React.useEffect(() => {
    const loadPersistedState = async () => {
      try {
        const jsonString = await AsyncStorage.getItem(persistKey);
        if (jsonString != null) {
          setInitialState(JSON.parse(jsonString));
        }
        setIsReady(true);
      } catch (ex) {
        console.warn(`Failed to load state. ${ex.message}`);
        setIsReady(true);
      }
    };
    loadPersistedState();
  }, [persistKey]);

  if (!isReady) {
    return null;
  }

  return (
    <NavigationContainer
      {...others}
      key={persistKey}
      ref={forwardedRef}
      initialState={initialState}
      onStateChange={onStateChangeInternal}
    />
  );
}
Example #3
Source File: DevPersistedNavigationContainer.tsx    From mobile with Apache License 2.0 5 votes vote down vote up 
function DevPersistedNavigationContainerImpl(
  {persistKey, onStateChange, ...others}: DevPersistedNavigationContainerProps,
  forwardedRef: React.Ref<NavigationContainerRef>,
) {
  const [isReady, setIsReady] = React.useState(false);
  const [initialState, setInitialState] = React.useState<InitialState | undefined>();
  const persistInteractionRef = React.useRef<{cancel: () => void} | null>(null);
  const onStateChangeInternal = React.useCallback(
    state => {
      const persistState = async () => {
        persistInteractionRef.current = null;
        try {
          await AsyncStorage.setItem(persistKey, JSON.stringify(state));
        } catch (error) {
          captureException(`Failed to persist state.`, error);
        }
      };

      if (persistInteractionRef.current !== null) {
        persistInteractionRef.current.cancel();
      }

      if (state != null) {
        persistInteractionRef.current = InteractionManager.runAfterInteractions(persistState);
      }

      if (onStateChange != null) {
        onStateChange(state);
      }
    },
    [onStateChange, persistKey],
  );

  React.useEffect(() => {
    const loadPersistedState = async () => {
      try {
        const jsonString = await AsyncStorage.getItem(persistKey);
        if (jsonString != null) {
          setInitialState(JSON.parse(jsonString));
        }
        setIsReady(true);
      } catch (error) {
        captureException(`Failed to load state.`, error);
        setIsReady(true);
      }
    };
    loadPersistedState();
  }, [persistKey]);

  if (!isReady) {
    return null;
  }

  return (
    <NavigationContainer
      {...others}
      key={persistKey}
      ref={forwardedRef}
      initialState={initialState}
      onStateChange={onStateChangeInternal}
    />
  );
}