I have few class components, that uses react-navigation, when I'm wrapping class component to use HOC, the header dissappears, after doing some research, it seems I need to hoist the static navigationOptions = {}
My themeProvider
export const ThemeContextProvider = ({ children }) => {
const [themeID, setThemeID] = useState();
useEffect(() => {
(async () => {
const storedThemeID = await AsyncStorage.getItem(STORAGE_KEY);
if (storedThemeID) setThemeID(storedThemeID);
else setThemeID(THEMES[1].key);
})();
}, []);
return (
<ThemeContext.Provider value={{ themeID, setThemeID }}>
{!!themeID ? children : null}
</ThemeContext.Provider>
);
};
export function withTheme(Component) {
return props => {
const { themeID, setThemeID } = useContext(ThemeContext);
const getTheme = themeID => THEMES.find(theme => theme.key === themeID);
const setTheme = themeID => {
AsyncStorage.setItem(STORAGE_KEY, themeID);
setThemeID(themeID);
};
return (
<Component
{...props}
themes={THEMES}
theme={getTheme(themeID)}
setTheme={setTheme}
/>
);
};
hoistNonReactStatics(withTheme, HomeScreen); //I've tried this, but header still does not show up.
}
The component in question
export class HomeScreen extends Component {
static navigationOptions = ({ navigation }) => ({
title: 'Dashboard',
headerTintColor: 'white',
headerStyle: {
backgroundColor: 'red',
borderBottomWidth: 0,
},
headerLeft: (
<TouchableOpacity
style={{ paddingLeft: 15 }}
onPress={() => navigation.dispatch(DrawerActions.toggleDrawer())}
>
<Feather name="arrow-left" size={24} color="#ffffff" />
</TouchableOpacity>
),
headerRight: (
<View style={{ flexDirection: 'row' }}>
</View>
),
});
componentDidMount() {
...
}
render() {
const { theme } = this.props;
console.log(theme);
return this.state.loading ? (
<ActivityIndicator
color="red"
size="large"
style={{ alignSelf: 'center', flex: 1 }}
/>
) : (
<View style={[styles.container, { backgroundColor: theme.backgroundColor }]}>
<View style={styles.container2}>
<TouchableOpacity>
<Feather
style={{ top: '60%', left: '28%' }}
name="plus"
size={32}
color="#ffffff"
onPress={this._openNewTaskModal}
/>
</TouchableOpacity>
<TouchableOpacity>
</TouchableOpacity>
</View>
<Feather
style={{ bottom: '5%', left: '85%' }}
name="calendar"
size={22}
color="#ffffff"
/>
<Feather
style={{ bottom: '9%', left: '8%' }}
name="home"
size={22}
color="#ffffff"
/>
</View>
);
}
}
export default withTheme(HomeScreen);
});
I also tried to export it as hoistNonReactStatics in the HomeScreen but no luck, what am I missing?
The solution was to use
export default hoistNonReactStatics(withTheme(HomeScreen), HomeScreen);
Related
react-navigation v5
When initializing Drawer.Navigator the drawer is blinking, though in parameters I pass openByDefault={ false } How to get out of this blinking?
"#react-navigation/drawer": "5.8.2",
"#react-navigation/native": "5.5.1."
Update:
<NavigationContainer>
<Drawer.Navigator
openByDefault={ false }
drawerContent={ (props) => <CustomDrawerContent { ...props } /> }
drawerContentOptions={ drawerOptions }
>
{ isAuth ? (
<>
<Drawer.Screen
name="Dashboard"
component={ DashboardStack }
options={ {
drawerIcon: config => <DashboardIcon fill={ 'white' }/>
} }
/>
<Drawer.Screen
name="Logout"
component={ LogoutStack }
options={ {
drawerIcon: config => <LogoutIcon fill={ 'white' }/>
} }
/>
</>) : (
<Drawer.Screen
name="Authorization"
component={ LoginScreen }
/>
) }
</Drawer.Navigator>
</NavigationContainer>
const CustomDrawerContent = (props) => {
return (
<SafeAreaView style={ { flex: 1 } }>
<View style={ {
height: 60,
alignItems: 'center',
justifyContent: 'center',
backgroundColor: '#000',
opacity: 0.9,
paddingVertical: 10
} }>
<Logo height={ 30 } width={ 165 }/>
</View>
<View style={ { height: 3, alignItems: 'center', backgroundColor: '#000', opacity: 0.9 } }>
<Divider style={ { height: 1, width: 255, marginHorizontal: 30, backgroundColor: 'gray', opacity: 0.9 } }/>
</View>
<ScrollView style={ { backgroundColor: '#000', opacity: 0.9, paddingTop: 20 } }>
<DrawerItemList { ...props } />
</ScrollView>
</SafeAreaView>
)
}
Fixed it by using a hook to check for the initial render
const useInitialRender = () => {
const [isInitialRender, setIsInitialRender] = React.useState(false)
if (!isInitialRender) {
setTimeout(() => setIsInitialRender(true), 1)
return true
}
return false
}
const MyApp = () => {
const isInitialRender = useInitialRender()
return (
<NavigationContainer>
<Drawer.Navigator
openByDefault={false}
drawerStyle={{ width: isInitialRender ? null : "70%" }}
drawerContent={ (props) => <CustomDrawerContent { ...props } /> }>
<Drawer.Screen name="Main" component={ MainScreen } />
</Drawer.Navigator>
</NavigationContainer>
)}
So basically I retrive a collection from Firestore succesfully and succesfully I put it in an array but it doesnt display on the screen, issue is I would say where I wrote paramater post inside my renderPost function. Please help me this should be easy I guess, this is my code:
<!-- language-all: lang-js -->
import Fire, { getPosts } from "../Fire";
import firebase, { database } from "firebase";
require("firebase/firestore");
export default class HomeScreen extends React.PureComponent {
constructor(props) {
super(props);
}
state = {
loading: false,
limit: 2,
post: [],
user: {},
};
onPostsReceived = (post) => {
this.setState({ post: post });
console.log(this.state.post); //it DOES return an array full of objects of collection
};
componentDidMount() {
getPosts(this.onPostsReceived);
//console.log(this.state.post); //returns empty array
}
renderPost = (post) => {
return (
<View style={styles.feedItem}>
<Image
source={
this.state.user.avatar
? { uri: this.state.user.avatar }
: require("../assets/tempAvatar.jpg")
}
style={styles.avatar}
/>
<View style={{ flex: 1 }}>
<View
style={{
flexDirection: "row",
justifyContent: "space-between",
alignItems: "center",
}}
>
<View>
{/* <Text>{console.log(this.state.post)}</Text> */}
<Text style={styles.name}>{}</Text>
<Text style={styles.timestamp}>
{moment(post.timestamp).toDate().toDateString()}
</Text>
</View>
<Ionicons name="ios-more" size={24} color="#73788B" />
</View>
<Text style={styles.post}>{post.text}</Text>
<Image
source={post.image && { uri: post.image }}
style={styles.postImage}
resizeMode="cover"
/>
<View style={{ flexDirection: "row" }}>
<Ionicons
name="ios-heart-empty"
size={24}
color="#73788B"
style={{ marginRight: 16 }}
/>
<Ionicons name="ios-chatboxes" size={24} color="#73788B" />
</View>
</View>
</View>
);
};
render() {
return (
<View style={styles.container}>
<StatusBar
translucent
backgroundColor="white"
barStyle="dark-content"
/>
<ClassicHeader
headerTitle="Eleph"
leftComponent={
<TouchableOpacity
style={{ marginRight: 0, margin: 10 }}
onPress={() =>
this.props.navigation.dispatch(DrawerActions.openDrawer())
}
>
<FontAwesome5 name="bars" size={24} color="#161924" />
</TouchableOpacity>
}
rightComponent={
<TouchableOpacity
style={{ marginLeft: 0, margin: 10 }}
onPress={() => this.props.navigation.navigate("Message")}
>
<Ionicons name="ios-chatboxes" size={24} color="#73788B" />
</TouchableOpacity>
}
/>
<FlatList
style={styles.feed}
data={this.state.post}
//extraData={this.state}
renderItem={({ item, index }) => {
this.renderPost(item);
}}
keyExtractor={(item, index) => String(index)}
//ItemSeparatorComponent={this.renderSeparator}
ListFooterComponent={this.renderFooter}
ListHeaderComponent={this.renderHeader}
onEndReachedThreshold={0}
onEndReached={this.retrieveMore}
showsVerticalScrollIndicator={false}
></FlatList>
</View>
);
}
}
in case my method getPosts from Fire is important here it goes:
export async function getPosts (PostsRetreived) {
var post = [];
var snapshot = await firebase.firestore()
.collection('posts')
.orderBy('timestamp')
.get()
snapshot.forEach((doc) => {
const PostItem = doc.data();
PostItem.id = doc.id;
post.push(PostItem);
});
PostsRetreived(post);
}
Fire.shared = new Fire();
export default Fire;
Omfg...this is why I often hate programming. I lost a week to this and error was this:
renderItem={({ item, index }) => {
this.renderPost(item);
}}
should be renderItem={({ item, index }) =>
this.renderPost(item);
}
yeah i just had to delete one curly bracets, nothing anywhere pointed at this being problematic omg. anyways yeah bye
I'm new in React native here. I got stuck on this scenario. I have a Dashboard screen. Inside dashboard screen, there's Hitcher screen that has Tabview. And there are HitcherTrip and HitcherChat inside the Tabview. In HitcherTrip, i expected componentWillReceiveProps() will trigger after calling Actions.goToOtherLayout() but componentWillReceiveProps() is triggered on Dashboard screen (Parent screen).
Dashboard
const Menu = createDrawerNavigator(
{
First: { screen: Hitcher },
Second: { screen: Driver }
},
{
contentComponent: props => (
<ScrollView>
<View style={{ padding:20, backgroundColor:'#4ca858' }}>
<Image source={require('../assets/pp.png')} style={{ borderRadius: 40, borderWidth: 1, borderColor: '#fff',width:80, height: 80 }} />
<CustomDrawerText/>
</View>
<SafeAreaView forceInset={{ top: "always", horizontal: "never" }}>
<Drawer.Item
label="I am Hitcher"
style={styles.drawerItem}
onPress={
() => {}
}
/>
<View style={{ height:1, backgroundColor:'#a8a8a8', marginLeft: 15, marginRight: 15 }}/>
<Drawer.Item
label="I am Driver"
onPress={
() => {}
}
style={styles.drawerItem}
/>
<View style={{ height:1, backgroundColor:'#a8a8a8', marginLeft: 15, marginRight: 15 }}/>
<Drawer.Item
label="Settings"
style={styles.drawerItem}
/>
<View style={{ height:1, backgroundColor:'#a8a8a8', marginLeft: 15, marginRight: 15 }}/>
<Drawer.Item
label="Log Out"
style={styles.drawerItem}
onPress={
() => {}
}
/>
<View style={{ height:1, backgroundColor:'#a8a8a8', marginLeft: 15, marginRight: 15 }}/>
</SafeAreaView>
</ScrollView>
)
}
);
const AppNav = createAppContainer(Menu);
export default class Dashboard extends React.Component {
constructor(props) {
super(props)
}
componentWillReceiveProps(props) {
console.log("Dashboard");
}
render() {
return(
<AppNav />
)
}
}
Hitcher
export default class Hitcher extends React.Component {
state = {
index: 0,
routes: [
{ key: 'first', title: 'My Trips' },
{ key: 'second', title: 'Chats' },
],
};
async _storeItem(key, token) {
try {
var token = await AsyncStorage.setItem(key, token);
return token;
} catch (error) {
console.log(error.message);
}
}
render() {
return (
<View style={styles.container}>
<Appbar.Header
style={{ backgroundColor: '#4ca858' }}>
<Appbar.Action
icon="menu"
color="white"
onPress={() =>
this.props.navigation.dispatch(DrawerActions.toggleDrawer())
}
/>
<Appbar.Action icon={require('../assets/logo_inverted.png')} style={{flex:1, alignSelf:'center'}} size={65} color="white"/>
<Appbar.Action icon="bell" color="white"/>
</Appbar.Header>
<View style={styles.container}>
<TabView
style={{ marginTop: 10 }}
navigationState={this.state}
renderScene={SceneMap({
first: HitcherTrip,
second: HitcherChat,
})}
renderTabBar={props =>
<TabBar
{...props}
labelStyle={styles.label}
indicatorStyle={styles.indicator}
style={styles.tabbar}
getLabelText={({ route }) => route.title}
/>
}
onIndexChange={index => this.setState({ index })} />
</View>
</View>
);
}
}
HitcherTrip
export default class HitcherTrip extends React.Component {
constructor(props) {
super(props);
this.state = {
data: [],
isFetching: false,
spinner: false,
itemId: 0
};
}
componentDidMount() {
this.getTrips();
}
getTrips = () => {
// codes
};
componentWillReceiveProps(props) {
console.log("HitcherTrip");
}
onRefresh() {
this.setState({isFetching: true,},() => {this.getTrips();});
}
createTrip = () => {
Actions.goToOtherLayout();
};
render() {
return(
<View style={styles.scene} >
<FlatList
showsVerticalScrollIndicator={false}
data={this.state.data}
renderItem={({item}) => {
var date = Moment(item.created_at).format('DD MMM');
var now = Moment();
var expired = Moment(item.expired_at);
var status = item.status_name;
if (now > expired && item.status == 0)
status = "Expired";
return (
<TouchableOpacity onPress={
() => {
}
}>
<Spinner
visible={this.state.spinner}
textContent={'Loading...'}
textStyle={styles.spinnerTextStyle}
/>
<View style={styles.container}>
{item.status == 0 ?
<View style={styles.header}>
<Text style={styles.headerLeftActive}>{status}</Text>
<Text style={styles.headerRightActive}>{item.request_no}</Text>
</View> :
<View style={styles.headerInActive}>
<Text style={styles.headerLeftInactive}>{status}</Text>
<Text style={styles.headerRightInactive}>{date}</Text>
</View>
}
<View style={styles.content}>
<Image source={require('../assets/fromto.png')} style={styles.image} />
<View style={styles.textContent}>
<Text style={styles.address}>{item.pickup_location}</Text>
<View style={{flex: 1}} />
<Text style={styles.address}>{item.dropoff_location}</Text>
</View>
</View>
</View>
</TouchableOpacity>
)}
}
keyExtractor={item => item.request_no}
onRefresh={() => this.onRefresh()}
refreshing={this.state.isFetching}
/>
<TouchableOpacity
style={{
alignItems:'center',
justifyContent:'center',
width:70,
position: 'absolute',
bottom: 10,
right: 10,
height:70,
backgroundColor:'#4ca858',
borderRadius:100,
elevation: 6,
}} onPress={this.createTrip}>
<Text style={{color:'#fff', fontSize: 32}}>+</Text>
</TouchableOpacity>
</View>
)
}
}
On other layout, i have set
Actions.pop(); setTimeout(()=> Actions.refresh(), 500);
to trigger componentWillReceiveProps() when press back button. But it only triggers on Dashboard screen.
How to trigger componentWillReceiveProps() on HitcherTrip? Or maybe trigger HitcherTrip function from Dashboard screen?
Is there a way for me to get the props from a child of my DrawerNavigator inside my CustomDrawerComponent ?
When I open my Drawer, I wanted to get my StackNavigator screens inside it, not simply "AppStackNavigator". Is there a easy way do do that ?
My Navigators:
const AppStackNavigator = createStackNavigator(
{
Início: {
screen: HomeScreen
},
Perfil: {
screen: ProfileScreen
},
Notificações: {
screen: NotificationScreen
},
'Criar Evento': {
screen: CreateEventScreen
},
EventScreen
},
StackNavigatorConfig()
)
const AppNavigator = createDrawerNavigator(
{
AppStackNavigator
},
{
contentComponent: Drawer,
drawerBackgroundColor: color.primary.main
}
)
const AppContainer = createAppContainer(AppNavigator)
My CustomDrawerContentComponent:
export default (CustomDrawerContentComponent = props => {
return (
<ScrollView>
<TouchableOpacity onPress={() => props.navigation.closeDrawer()} style={styles.close}>
<EvilIcons style={{ color: color.primary.contrastLightText }} size={40} name="close" />
</TouchableOpacity>
<View style={styles.thumbImageContainer}>
<ThumbImage image={require('../assets/images/user.jpg')} />
<View style={styles.statusContainer}>
<TextApp>Luis Coimbra</TextApp>
<TextApp secondary>Apaixonado por Jesus</TextApp>
</View>
</View>
<SafeAreaView style={{ flex: 1 }} forceInset={{ top: 'always', horizontal: 'never' }}>
<DrawerItems {...props} {...itemsStyle} />
</SafeAreaView>
</ScrollView>
)
})
With the props.navigation.state.routes[0].routes.slice(-1)[0].routeName, I can manage to get the active router so I am able to style. If you have a better way, I'd be glad to read.
Not exactly what I was expecting, but it works well for now:
export default (CustomDrawerContentComponent = props => {
const activeRouterName = props.navigation.state.routes[0].routes.slice(-1)[0].routeName
return (
<ScrollView>
<TouchableOpacity onPress={() => props.navigation.closeDrawer()} style={styles.close}>
<EvilIcons style={{ color: color.dark.contrast }} size={40} name="close" />
</TouchableOpacity>
<View style={styles.thumbImageContainer}>
<ThumbImage source={require('../assets/images/user.jpg')} />
<View style={styles.statusContainer}>
<TextApp dark>Luis Coimbra</TextApp>
<TextApp secondary>Apaixonado por Jesus</TextApp>
</View>
</View>
<SafeAreaView
style={{ flex: 1, borderTopWidth: 2, borderTopColor: color.dark.contrast }}
forceInset={{ top: 'always', horizontal: 'never' }}
>
{['Início', 'Perfil', 'Notificações', 'Criar Evento'].map(routerName => (
<View key={routerName} style={routerName == activeRouterName && styles.activeView}>
<TextApp
onPress={() => props.navigation.navigate(routerName)}
style={{
color:
routerName == activeRouterName
? color.secondary()
: color.dark.contrast,
margin: 16,
fontWeight: 'bold'
}}
>
{routerName}
</TextApp>
</View>
))}
</SafeAreaView>
</ScrollView>
)
})
Result:
I am using <FlatList/> to render an item for each object of json. This json is stored in this.state.json. Here is my code:
export class MyAppsName extends React.Component {
static navigationOptions = {
title: "App name",
headerLeft: null,
};
constructor() {
super();
this.state = {
index: 0,
isAuthed: false,
data: [
{
name: "Class 1",
grade: 83,
letterGrade: "A+"
},
{
name: "Class 2",
grade: 90,
letterGrade: "B+"
}
],
loading: false
};
}
refresh() {
this.setState({ isAuthed: true });
}
componentWillMount() {
}
render() {
return (
<Root>
<ScrollableTabView initialPage={0} tabBarPosition="top">
<HomeRoute tabLabel="Grades" />
<View
style={{ flex: 1, justifyContent: "center" }}
tabLabel="Settings"
>
</View>
</ScrollableTabView>
</Root>
);
}
}
makeRemoteRequest = () => {
//do request stuff
};
handleRefresh = () => {
this.makeRemoteRequest();
};
renderSeparator = () => {
return (
<View
style={{
height: 1,
width: "86%",
backgroundColor: "black",
}}
/>
);
};
renderHeader = () => {
return <View />;
};
classSelected = className => {
//do stuff
};
renderFooter = () => {
if (!this.state.loading) return null;
return (
<View>
<ActivityIndicator animating size="large" />
</View>
);
};
const HomeRoute = () => (
<List containerStyle={{ borderTopWidth: 0, borderBottomWidth: 0 }}>
<FlatList
style={{ width: width }}
data={this.state.data}
renderItem={({ item }) => (
<View style={{ left: "9%", padding: 6 }}>
<TouchableOpacity onPress={() => this.classSelected(item.name)}>
<Text
style={{
fontSize: 16
}}
>
{item.name}
</Text>
<Text
style={{
fontSize: 12
}}
>
{item.grade}
</Text>
<Text
style={{
fontSize: 12
}}
>
{item.letterGrade}
</Text>
</TouchableOpacity>
</View>
)}
ItemSeparatorComponent={this.renderSeparator}
ListHeaderComponent={this.renderHeader}
ListFooterComponent={this.renderFooter}
keyExtractor={item => item.name}
/>
</List>
);
The error I get is 'TypeError: Cannot read property 'data' of undefined' within HomeRoute. I think the error is in this line: data={this.state.data}.
I am defining data correctly? Am I even correctly setting up the FlatList? Or does it have to do with how I am passing down application state?
If you need any other code to be appended to the question, you can just ask in the comments.
Thanks in advance
You've declared the state in is parent component, causing this.state is undefined in its child component.
When you use the HomeRoute component, you need to pass the state data from its parent component.
render() {
return (
<Root>
<ScrollableTabView initialPage={0} tabBarPosition="top">
<HomeRoute tabLabel="Grades" data={this.state.data} />
<View
style={{ flex: 1, justifyContent: "center" }}
tabLabel="Settings"
>
</View>
</ScrollableTabView>
</Root>
);
}
and in the HomeRoute itself, you need to extract data from its props.
const HomeRoute = ({data}) => (
<List containerStyle={{ borderTopWidth: 0, borderBottomWidth: 0 }}>
<FlatList
style={{ width: width }}
data={data}
renderItem={({ item }) => (
<View style={{ left: "9%", padding: 6 }}>
<TouchableOpacity onPress={() => this.classSelected(item.name)}>
<Text
style={{
fontSize: 16
}}
>
{item.name}
</Text>
<Text
style={{
fontSize: 12
}}
>
{item.grade}
</Text>
<Text
style={{
fontSize: 12
}}
>
{item.letterGrade}
</Text>
</TouchableOpacity>
</View>
)}
ItemSeparatorComponent={this.renderSeparator}
ListHeaderComponent={this.renderHeader}
ListFooterComponent={this.renderFooter}
keyExtractor={item => item.name}
/>
</List>
);
Several functions, including HomeRoute, are not defined within the MyAppsName class. Therefore, this in these functions doesn't point to the correct this. I suggest to put them inside the class and bind all the functions that use this.
You get a syntax error because they are not defined properly. Follow the pattern of the definition of render, for example:
makeRemoteRequest() {
Instead of
makeRemoteRequest = () => {