React-Native, Scroll View Not Scrolling - react-native

When I wrap content like this example below, it scrolls Perfectly..
return(
<ScrollView>
<Text> TEST </Text>
<Text> TEST </Text>
<Text> TEST </Text>
<Text> TEST </Text>
...
</ScrollView>
);
However, whenever I wrap it in another View, It will not scroll.
return(
<View>
<ScrollView>
<Text> TEST </Text>
<Text> TEST </Text>
<Text> TEST </Text>
<Text> TEST </Text>
...
</SCrollView>
</View>
);
Is there some sort of fix to this. I am trying to put a nav bar header above all of the content, couldn't really figure it out though.

It's a typo:
Your closing ScrollView tag is: </SCrollView> rather than </ScrollView>.
You also need to add a style to the View container, here's an example of what it should look like:
return(
<View style={{flex: 1}}>
<ScrollView>
<Text> TEST </Text>
<Text> TEST </Text>
<Text> TEST </Text>
<Text> TEST </Text>
...
</ScrollView>
</View>
);

Try next code:
<ScrollView contentContainerStyle={{ flexGrow: 1 }}>
<Text> TEST </Text>
<Text> TEST </Text>
<Text> TEST </Text>
<Text> TEST </Text>
</ScrollView>

If your ScrollView is within something that handles touch (Pressable, TouchableWithoutFeedback etc) then you either need to stop the touch event propagating up to that parent handler or else the ScrollView won't handle the touch event and therefore won't scroll.
This can be done either with onStartShouldSetResponder={() => true} or by wrapping the children in an element which itself handles the touch event (e.g. Pressable):
return (
<ScrollView>
<Pressable>
<Text>This is scrollable</Text>
<Pressable>
<Pressable>
<Text>As is this</Text>
<Pressable>
</ScrollView>
);

Try adding style={{flex:1}} to <View> and <ScrollView> components. You also have a typo on your code: </SCrollView> in line 9. An example code will look like this:
<View style={{backgroundColor:'white', flex:1}}>
<NavigationBar title="Title" />
<ScrollView style={{flex:1, backgroundColor:'white'}}>
<View style={{flex:1,justifyContent:'center'}}>
<RegisterForm />
</View>
</ScrollView>
</View>

Another solution is to add a height property to the parent View container. This sometimes works well when calculating the height against the screen height.
render () {
const screenHeight = Dimensions.get('window').height
return(
<View style={{height: screenHeight}}>
<ScrollView>
<Text> TEST </Text>
<Text> TEST </Text>
<Text> TEST </Text>
<Text> TEST </Text>
...
</ScrollView>
</View>
)
}

I have tried all of these solutions and none were working. Then I just fully restarted the app and the metro server and everything worked fine.

As #Evan Siroky has answered above it's working well I'm just adding on thing for a auto height in case you don't want to reserve the space
render () {
const screenHeight = Dimensions.get('window').height
return(
<View style={{ Height: "auto", maxHeight: screenHeight}}>
<ScrollView>
<Text> TEST </Text>
<Text> TEST </Text>
<Text> TEST </Text>
<Text> TEST </Text>
...
</ScrollView>
</View>
)
}

I had a similar issues, it got solved by removing height/width if set to '100%'.
Just adding here if someone faces the same issues. :D

Set nestedScrollEnabled as true for Hybrid Android + react app as it might be issue with gesture/click for scrolling issue.

Just if anyone is as desperate as I was:
My view was inside a StackNavigator. In the StackNavigator you can assign a default cardStyle. This card style needs height: "100%".
For me this was the case but I had overwritten it within the cardStyle of the Stack.Screen definition.
See this working example:
// This is the stack navigator
<ModalStack.Navigator screenOptions={() => ({
cardStyle: {height: "100%"}
});}}>
<ModalStack.Screen name={ScreenItemDetail} options={{
// cardStyle: {} be sure to not override card style again!
}} component={ItemDetailScreen} />
// ...
</ModalStack.Navigator>

removing contentContainerStyle prop from the ScrollView has fixed the issue for me

Just add ScrollView as parent View if it's still not working for you...just restart your app or server and your ScrollView will work fine. Because sometimes our app freezes for no reason.

I think the best way of doing this is to put all requires inside an array and map this array.
const images = [
require('../your/path/here'),
require('../other/image/here'),
...
];
return ( {images.map((image) => <Image ... source={image} />)
note that if you want it as a background image with other elements above the image, you may use BackgroundImage and either render elements for each image or position absolute the image map and zIndex it behind all things

Related

How to make sticky footer with react native scrollview?

I Had this code with sticky component on the header, how can i move this to the bottom, like footer button on instagram (when you open the app, it already stick in the bottom) ? here's my code
function MyApp() {
return (
<ScrollView
stickyHeaderIndices={[0]}
showsVerticalScrollIndicator={false}>
<View>
<MyStickyFooter/>
</View>
<View>
<Text> Hello world </Text>
<Text> 3000 long lorem word </Text>
</View>
</ScrollView>)}
const MyStickyFooter = () => {
return (
<View style={{}}>
<Button> I am a sticky footer </Button>
</View>
)};
You should move out the MyStickyFooter component from your ScrollView.
You should have something like this:
<View style={....}>
<ScrollView>
... components
</ScrollView>
<MyStickyFooter/>
</View>

ScrollView not working even tho it works on other components

Hello guys i have been working on the ubereats clone and while using scrollView it doesnt work ,
i used it on other components the same way and it worked fine but here it doesnt !! ?
const MenuItem=()=>{
return(
<ScrollView showsVerticalScrollIndicator={false}>
<View style={{paddingHorizontal:10}} >
{Menu.map((food,index)=>(
<View style={{paddingLeft:20,flexDirection:"row",marginTop:30,borderTopWidth:1,borderTopColor:"lightgray",paddingTop:10}} key={index} >
<View style={{justifyContent:"center"}}><BouncyCheckbox
iconStyle={{borderColor: "gray",borderRadius:0}}
fillColor='green'
/></View>
<View style={{width:220,marginLeft:10}}>
<Text style={{fontSize:20,fontWeight:"700"}}>{food.title}</Text>
<Text > {food.description}</Text>
<View style={{marginTop:8}}>
<Text style={{fontSize:17,fontWeight:"500"}}>{food.price}</Text></View>
</View>
<View style={{marginLeft:18}}>
<Image source={{uri:food.image}} style={{width:80,height:80,borderRadius:30}}/>
</View>
</View>
))}
</View>
</ScrollView>
)
}```
i used flex 1 on the view outside the map function and it didnt fix it
Remove the View above the ScrollView.
You try to set one child for the scrollView it’s the View component and the View component have array map.
Remove the View component to keep array map child for ScrollView

React native Model popup style Issue

I make check box list on Model Pop up by using react native multiple select
checkbox list listed but it take full screen height
i am not able to fix this issue
please Any body help me
Outer Element would be a modal, then make a view of a specific height inside that modal,
Example
<Modal transparent={true}
visible={this.state.showDialog}
animationType='fade'>
<View style={{opacity:.5, backgroundColor:'black',flex:1}}/>
<View
style={{position:'absolute',padding:16,top:0,bottom:0,left:0,right:0
,justifyContent:'center',alignContent:"center",
alignItems:'center'}}>
<View style={{backgroundColor:’red’,padding:16,borderRadius:5,
width:'60%',height:'10%',alignContent:'center',alignItems:'center',justifyContent:'center'}}>
<Text style={{fontSize:14,alignSelf:'center',textAlign:'center'}}>
Sorry!!
</Text>
<Text style={{marginTop:5,fontSize:12,alignSelf:'center',textAlign:'center',color:’black’}}>
{this.props.errorMessage}
</Text>
<Button title='close'
onPress={()=>this.setState({showDialog:false})}/>
</View>
</View>
</Modal>

react-native Modal with SafeAreaView-wrapper not working

We have a FilterComponent which renders a Modal, but on iPhone X it's Header is in the Statusbar.
I tried to render it with SafeAreaView but seems like this is not working:
return (
<SafeAreaView>
<Modal
{ ...defaultModalProps }
onRequestClose={ close }
style={ styles.container }
visible={ visible }
>
<ModalNavbar close={ close }>
Filter
</ModalNavbar>
<View style={ styles.content }>
...
</View>
</Modal>
</SafeAreaView>
);
When FilterModal is openend on iPhoneX it still is in the Statusbar and you cant click on anything.
Any idea how to solve this?
thanks.
Put SafeAreaView inside the Modal component
return (
<Modal
{...defaultModalProps}
onRequestClose={close}
style={styles.container}
visible={visible}
>
<SafeAreaView style={{ flex: 1, backgroundColor: "transparent" }}>
<ModalNavbar close={close}>Filter</ModalNavbar>
<View style={styles.content}>...</View>
</SafeAreaView>
</Modal>
);
if you use react-native-safe-area-context and you have a problem with modal then
<Modal>
<SafeAreaProvider>
<SafeAreaView>
// your modal content
</SafeAreaView>
</SafeAreaProvider>
</Modal>
A Modal fill the entire screen, so you need to provide extra spacing inside the Modal. Margin / Padding will not effect on Modal if applied on parent of Modal.
<Modal {...}>
<TouchableWithoutFeedback onPress={closeModal}>
<SafeAreaView {...}>
{...}
</SafeAreaView>
</TouchableWithoutFeedback>
</Modal>

ScrollView cuts off last object on the page

I built a view that is populated dynamically using array mapping. After doing this, I realized that the View would be too large to contain all the array items on one screen.
Here is my code.
<View style={[styles.flexColumn]}>
{Characters.map((character, i) =>
<View key={i} style={[styles.flexRow]}>
<View>
<Text>
{character.Name}
</Text>
</View>
</View>
)}
</View>
So I tried adding a scroll view as the parent like this:
<ScrollView>
<View style={[styles.flexColumn]}>
{Characters.map((character, i) =>
<View key={i} style={[styles.flexRow]}>
<View>
<Text>
{character.Name}
</Text>
</View>
</View>
)}
</View>
</ScrollView>
This does add some scrollability to the view, but it's still cutting off a portion of the last object in the array.
Is there a way to fix this?
Thanks!
ScrollView is intended for showing scrollable content at once. Since you are populating content dynamically, you should be using FlatList. Something similar to the following would work:
...
_keyExtractor = character => character.Name
_renderItem = ({character}) => (
<Text>
{character.Name}
</Text>
)
render() {
return (
<FlatList
data={Characters}
keyExtractor={this._keyExtractor}
renderItem={this._renderItem}
/>
)
}
...
Detailed explanation is available in the docs.
If you are by any reason still forced to stick to Scrollview, the problem is probably related to the styling. I suppose styles.flexColumn should be applied to the ScrollView itself via contentContainerStyle, rather than to its' child View.