How to make TouchableOpacity image look like pressed in? - react-native

I have an image in each TouchableOpacity and I would like to change the picture in every onPress function so she could looked like shes pressed in (for example: remove the color from to picture and changes it to black and white or make a light gray shadow on the picture ).
and Reverse (when you click shes changing back to the original picture (Press:true/false).
I have a stateless Component and no class.
My Component :
export default function Recipie({ navigation, route }) {
const recipies = GetRecipies();
return (
<View style={{ flexGrow: 1, flex: 1 }}>
<ScrollView>
{recipies.map((u, i) => {
return (
<View key={i}>
<Text
onPress={navigation.navigate}
style={{
fontSize: 25,
fontFamily: "Cochin",
textAlign: "center",
}}
>
{u._recipieName}
</Text>
<TouchableOpacity
onPress={() => {
navigation.navigate("SingleRecipieScreen", { u });
}}
>
<Image
style={{
height: 200,
width: 350,
borderRadius: 80,
alignSelf: "center",
}}
source={{ uri: u._imgUrl }}
/>
</TouchableOpacity>
<Text
style={{
fontSize: 17,
fontFamily: "Cochin",
textAlign: "center",
}}
>
{u._recipieDescription}
</Text>
<TouchableOpacity
style={{ flex: 1, flexDirection: "column", flexGrow: 1 }}
>
{Show(u._preparationTime)}
</TouchableOpacity>
</View>
);
})}
</ScrollView>
</View>
);
}

Try to use position absolute in View to cover button , and useState for styles, example :
import React, { useState } from "react";
import { StyleSheet, Text, TouchableOpacity, View,Image } from "react-native";
const App = () => {
const [isPressed, setIsPressed] = useState(0);
const onPress = () => setIsPressed(!isPressed);
return (
<View style={styles.container}>
<TouchableOpacity
style={styles.button}
onPress={onPress}
>
<View style={isPressed && styles.pressedButtonStyle} />
<Text> {isPressed ? "Pressed" : " Press Here"}</Text>
<Image
style={ styles.tinyLogo}
source={{
uri: 'https://reactnative.dev/img/tiny_logo.png',
}}
/>
</TouchableOpacity>
</View>
);
};
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: "center",
paddingHorizontal: 10,
},
button: {
alignItems: "center",
backgroundColor: "#DDDDDD",
},
tinyLogo: {
width: 50,
height: 50,
},
pressedButtonStyle: {
position:"absolute",
width:"100%",
height:"100%",
backgroundColor:'black',
opacity:0.6,
zIndex:100,
}
});
https://snack.expo.dev/ixeOwAg3o

Related

White background in react-native-view-shot

I am using react-native-view-shot to save a screenshot of a view, whose height is not initially defined, as I am using padding and setting the height of the view using the onLayout method.
The problem is that, when the view has an initial fixed height, the screenshot taken does not have a white background, which is what I want. However, when I set the height when the onLayout is invoked, the screenshot has a white background.
Here's my code:
const [height, setHeight] = useState();
<View
onLayout={(e) => {
setHeight(e.nativeEvent.layout.height);
}}
ref={contentRef}
style={{
height,
width: width - 12,
backgroundColor: "darkblue",
borderRadius: 32,
}}
>
<Text style={styles.text}>This is a test using padding</Text>
</View>
https://snack.expo.dev/#pietroputelli/react-native-view-shot
=========== EDIT ===========
<View style={{ flex: 1, justifyContent: "center", alignItems: "center" }}>
<View ref={shotRef} style={{ backgroundColor: "transparent" }}>
<View
onLayout={(e) => {
setHeight(e.nativeEvent.layout.height);
}}
style={{
height,
width: width / 2 - 12,
backgroundColor: "darkblue",
borderRadius: 32,
}}
>
<Text style={{ color: "white" }}>This is a test using padding</Text>
</View>
</View>
<Button
onPress={() => {
captureRef(shotRef, {
format: "png",
quality: 0.8,
}).then(
async (uri) => {
await MediaLibrary.saveToLibraryAsync(uri);
},
(error) => console.error("Oops, snapshot failed", error)
);
}}
title="Take screenshot"
/>
</View>
I can able to generate the same from viewshot:
take another view and give a reference to that view and generate a screenshot from that. might be its issue of reference. Please check the below screenshot.
<View ref={viewshotRef}
style={{
// whatever you want to add as per your requirement
}} >
<View
onLayout={(e) => {
setHeight(e.nativeEvent.layout.height);
}}
style={{
height,
width: DEVICE_WIDTH / 2 - 12,
backgroundColor: "darkblue",
borderRadius: 32,
}}
>
<Text style={{ color: 'white' }}>This is a test using padding</Text>
</View>
</View>
For base64:
import * as MediaLibrary from "expo-media-library";
import React, { useRef, useState } from "react";
import {
Button,
Dimensions,
StyleSheet,
Text,
View,
} from "react-native";
import ViewShot, { captureRef } from "react-native-view-shot";
const { width } = Dimensions.get("window");
export default function ViewCapture() {
const contentRef = useRef();
const [height, setHeight] = useState(undefined);
return (
<View style={{ flex: 1, justifyContent: "center", alignItems: "center", backgroundColor: "transparent" }}>
<ViewShot ref={contentRef} options={{ result: 'base64' }}>
<View
onLayout={(e) => {
setHeight(e.nativeEvent.layout.height);
}}
style={{
height,
width: width - 12,
backgroundColor: "darkblue",
borderRadius: 32,
}}
>
<Text style={{ color: "white" }}>This is a test using padding</Text>
</View>
</ViewShot>
{/* </View> */}
<Button
onPress={() => {
contentRef.current.capture().then((url) => {
console.log("on success", "data:image/jpeg;base64,", url)
// await MediaLibrary.saveToLibraryAsync(uri);
},
(error) => console.error("Oops, snapshot failed", error)
);
}}
title="Take screenshot"
/>
</View>
);
}
For File:
You need to set the result as tmpfile so you will get file uri in the callback
<ViewShot ref={contentRef} options={{ result: 'tmpfile' }}>
I hope it will work!

FlatList - react native not scrolling

I am unable to get my Flatlist to scroll in my expo react native app. At the moment it is just static, displaying a grid of images int he Flatlist with no scrolling functionality. Please can someone advise?
I am unable to get my Flatlist to scroll in my expo react native app. At the moment it is just static, displaying a grid of images int he Flatlist with no scrolling functionality. Please can someone advise?
import { StyleSheet, Text, View, Button, TextInput, TouchableWithoutFeedback, Keyboard, FlatList, ActivityIndicator } from 'react-native';
import { Image } from '#rneui/themed';
import ImageAPI from '../shared-components/ImageAPI';
export default function Home({ navigation }) {
const onCreate = () => {
console.log('create my image now');
};
return (
<TouchableWithoutFeedback onPress={() => Keyboard.dismiss()}>
<View style={styles.container}>
{/** Enter text prompt */}
<View style={styles.section1}>
<View style={styles.txtInputView}>
<TextInput
style={styles.txtInput}
placeholder='Enter a prompt - a description of what you want to create'
multiline={true}
numberOfLines={4}
/>
</View>
<View style={styles.buttonView}>
<Text
style={styles.createBtnText}
onPress={onCreate}
>Create</Text>
</View>
</View>
{/** PROMPT EXAMPLES */}
<View style={styles.section2}>
<View style={styles.section2_sub0}>
<Text style={styles.promptEgTxt}>Prompt Examples</Text>
</View>
<View style={styles.section2_sub1}>
<ImageAPI />
</View>
</View>
</View>
</TouchableWithoutFeedback>
);
}
const styles = StyleSheet.create({
container: {
flex: 1,
alignItems: 'center',
justifyContent: 'center',
},
section1: {
flex: 2,
width: '100%',
alignItems: 'center',
justifyContent: 'center',
backgroundColor: '#ffc6e2',
},
section2: {
flex: 5,
width: '100%',
backgroundColor: '#F8DB93',
},
// section3: {
// flex: 3,
// backgroundColor: '#BCF893',
// },
txtInputView: {
flex: 3,
width: '85%',
height: '50%',
alignItems: 'center',
justifyContent: 'center',
marginTop: 20,
marginBottom: 20
},
buttonView: {
flex: 2,
width: '70%',
alignItems: 'center',
justifyContent: 'center',
marginBottom: 20,
backgroundColor: '#EE4A4A',
borderRadius: 40
},
txtInput: {
borderColor: '#AAAAAA',
borderWidth: 2,
padding: 10,
borderRadius: 15,
// width: '85%',
// height: '50%',
width: '100%',
height: '100%',
fontSize: 15,
},
createBtnText: {
fontSize: 18,
fontWeight: 'bold',
// backgroundColor: '#EEEC4A'
},
section2_sub0: {
flex: 1,
width: '100%',
height: '100%',
backgroundColor: '#EEEC4A',
justifyContent: 'center',
},
promptEgTxt: {
fontSize: 15,
fontWeight: 'bold',
marginLeft: 10
},
section2_sub1: {
flex: 8,
width: '100%',
height: '100%',
backgroundColor: '#A9F889'
},
});
This is the ImageAPI.js file:
import React from 'react';
import { FlatList, SafeAreaView, StyleSheet, ActivityIndicator, View, ScrollView } from 'react-native';
import { Image } from '#rneui/themed';
const BASE_URI = 'https://source.unsplash.com/random?sig=';
const ImageAPI = () => {
return (
<>
<SafeAreaView>
<FlatList
data={[...new Array(10)].map((_, i) => i.toString())}
style={styles.list}
numColumns={2}
keyExtractor={(e) => e}
renderItem={({ item }) => (
<Image
transition={true}
source={{ uri: BASE_URI + item }}
containerStyle={styles.item}
PlaceholderContent={<ActivityIndicator />}
/>
)}
/>
</SafeAreaView>
</>
);
};
const styles = StyleSheet.create({
list: {
width: '100%',
backgroundColor: '#000',
},
item: {
aspectRatio: 1,
width: '100%',
flex: 1,
},
});
export default ImageAPI
you need to give it a fixed height and set the contentContainerStyle prop to { flexGrow: 1 }. This will allow the content inside the FlatList to exceed the bounds of the container and be scrollable.
<View style={styles.section2_sub1}>
<FlatList
contentContainerStyle={{ flexGrow: 1 }}
data={data}
renderItem={({ item }) => <ImageAPI data={item} />}
keyExtractor={(item) => item.id}
/>
</View>
Try adding flex according to your requirement to your <SafeAreaView> which is the parent to your <Flatlist> Something like this:
<>
<SafeAreaView style = {{flex: 8}} >
<FlatList
data={[...new Array(10)].map((_, i) => i.toString())}
style={styles.list}
numColumns={2}
keyExtractor={(e) => e}
renderItem={({ item }) => (
<Image
transition={true}
source={{ uri: BASE_URI + item }}
containerStyle={styles.item}
PlaceholderContent={<ActivityIndicator />}
/>
)}
/>
</SafeAreaView>
</>
Or remove the SafeAreaView if not required.
Both should work.

How to scroll To next item on a button click using FlatList in React Native?

I have an array of months which I am using to display months using a horizontal FlatList. I want the months to change using 2 buttons that are forward button to change the month in increasing order i.e from January to February and so on and a back button to change the month backwards i.e from January to December.
How can I make the buttons do so. Below monthName is an array that contains all the month names.
<ScrollView style={{flexGrow: 1}}>
<View style={{flex: 1, backgroundColor: '#fff', height: hp('130')}}>
<View
style={{
justifyContent: 'space-evenly',
width: wp('48'),
}}>
<FlatList
data={monthName}
pagingEnabled={true}
showsHorizontalScrollIndicator={false}
renderItem={(month, index) => (
<View>
<Months
showMonth={month.item}
id={month.id}
refer={flatRef}
/>
</View>
)}
keyExtractor={(item, index) => item.id.toString()}
horizontal
// snapToInterval={Dimensions.get('window').width}
snapToAlignment={'center'}
ref={(node) => (flatRef = node)}
/>
</View>
<View
style={{
justifyContent: 'space-evenly',
width: wp('12'),
}}>
{/* {} */}
<IonIcons.Button --> the button that makes the month increment.
name="arrow-forward"
size={25}
backgroundColor="white"
color="black"
// onPress={() => console.log('pressed')}
onPress={() => {
flatRef.scrollToIndex({index: ?});
}}
/>
</View>
</View>
</ScrollView>
try to access ref using current and it should work
this.flatRef.current.scrollToIndex({index: monthName.length > this.state.currentindex ? this.state.currentindex++ : this.state.currentindex });
import React, { useRef } from 'react';
import {
FlatList,
StyleSheet,
Text,
TouchableOpacity,
View
} from 'react-native';
import { wp } from '../../constants/scaling';
import { colors } from '../../constants/theme';
import bookingprocess from '../../data/BookingProcess';
import { textStyles } from '../../styles/textStyles';
import { RFValue } from 'react-native-responsive-fontsize';
import AntDesign from 'react-native-vector-icons/AntDesign';
const BookingProcess = ({}) => {
const flatListRef = useRef(FlatList);
const nextPress = index => {
if (index <= 2) {
flatListRef?.current?.scrollToIndex({
animated: true,
index: index + 1
});
}
};
const backPress = index => {
if (index >= 1) {
flatListRef?.current?.scrollToIndex({
animated: true,
index: index - 1
});
}
};
return (
<View
style={{
...styles.cardView,
padding: 0,
elevation: 0,
borderWidth: 1,
borderColor: '#f2f2f2',
overflow: 'hidden'
}}>
<View
style={{
padding: wp(2),
backgroundColor: colors.primaryColor
}}>
<Text
style={{
...textStyles.heading,
color: '#fff'
}}>
Booking Process
</Text>
</View>
<Text
style={{
...textStyles.mediumheading,
padding: wp(2),
paddingBottom: 0
}}>
You can reserve your parking slot in advance. Please follow
these four simple steps to book your parking slot.
</Text>
<FlatList
data={bookingprocess}
horizontal={true}
ref={flatListRef}
contentContainerStyle={{ padding: wp(2) }}
showsHorizontalScrollIndicator={false}
keyExtractor={(item, index) => item.id}
renderItem={({ item, index }) => {
return (
<View style={styles.innerCard}>
{item.image}
<View style={styles.ButtonBox}>
<TouchableOpacity
onPress={() => backPress(index)}
style={{
backgroundColor: colors.secondaryColor,
borderRadius: wp(50)
}}>
<AntDesign
name="leftcircle"
size={RFValue(25)}
color={colors.primaryColor}
/>
</TouchableOpacity>
<TouchableOpacity
onPress={() => nextPress(index)}
style={{
backgroundColor: colors.secondaryColor,
borderRadius: wp(50)
}}>
<AntDesign
name="rightcircle"
size={RFValue(25)}
color={colors.primaryColor}
/>
</TouchableOpacity>
</View>
<View style={styles.innercardHeaderView}>
<Text style={styles.headingTextNumber}>
{item.id}. {item.title}
</Text>
</View>
<Text style={styles.description}>
{item.description}
</Text>
</View>
);
}}
/>
</View>
);
};
export default BookingProcess;
const styles = StyleSheet.create({
cardView: {
backgroundColor: colors.white,
margin: wp(2),
elevation: 4,
borderRadius: wp(2),
padding: wp(2),
width: wp(94)
},
innerCard: {
margin: wp(2),
borderRadius: wp(2),
padding: wp(0),
paddingTop: 0,
paddingHorizontal: 0,
overflow: 'hidden',
width: wp(90),
elevation: 5,
marginLeft: 0,
padding: wp(2),
backgroundColor: '#fff'
},
ButtonBox: {
position: 'absolute',
flexDirection: 'row',
right: 0,
justifyContent: 'space-between',
width: wp(20),
padding: wp(2)
},
innercardHeaderView: {
backgroundColor: '#0000',
flexDirection: 'row',
padding: wp(2),
paddingBottom: 0,
alignItems: 'center'
},
headingTextNumber: {
...textStyles.heading,
color: colors.primaryColor,
textAlign: 'center',
alignSelf: 'center',
textAlignVertical: 'center'
},
description: {
...textStyles.mediumheading,
paddingHorizontal: wp(2),
textAlign: 'justify'
}
});
Instead of using a FlatList I would suggest you to make a state variable and execute it like this
Working example - Here
import * as React from 'react';
import { Text, View, StyleSheet } from 'react-native';
import { AntDesign } from '#expo/vector-icons';
...
const [SelectMonth, SetSelectMonth] = React.useState(monthName[0]);
const NextPress = () => {
if (SelectMonth.id !== 12) {
let temp = monthName.find((c) => c.id === SelectMonth.id + 1);
if (temp) {
SetSelectMonth(temp);
}
}
};
const PrevPress = () => {
if (SelectMonth.id !== 1) {
let temp = monthName.find((c) => c.id === SelectMonth.id - 1);
if (temp) {
SetSelectMonth(temp);
}
}
};
return (
<View style={styles.container}>
<View style={styles.CalenderBox}>
<AntDesign
name="caretleft"
size={30}
color="black"
onPress={() => PrevPress()}
/>
<View style={styles.MonthNameBox}>
<Text style={{ fontWeight: 'bold', fontSize: 24 }}>
{SelectMonth.name}
</Text>
</View>
<AntDesign
name="caretright"
size={30}
color="black"
onPress={() => NextPress()}
/>
</View>
</View>
);

KeyboardAvoidingView doesn't work properly on my app

I searched a lot about this issue and I don't know what to do now so I decided to ask here and any help would be appreciated. in my register screen I have some input that user must fill and for the last one I need to avoid keyboard overlay. so I used KeyboardAvoidingView component to solve this but as you can see in the screenshot the device keyboard still overlay my input (birth date).
here is my code for this screen :
import React, { useState } from 'react';
import { View, Text, KeyboardAvoidingView, Image, Dimensions, PixelRatio, StyleSheet } from 'react-native';
import { widthPercentageToDP as wp, heightPercentageToDP as hp } from 'react-native-responsive-screen';
import { COLORS } from '../Constants/COLORS';
import PrimaryButton from '../Components/PrimaryButton';
import PrimaryInput from '../Components/PrimaryInput';
import CheckBox from '../Components/CheckBox';
const Register = (props) => {
const [lisenceTerm, setLisenceTerm] = useState(true);
const [privacyPolicy, setPrivacyPolicy] = useState(true);
return (
<View style={styles.screen}>
<View style={styles.imageContainer}>
<Image style={styles.image} source={require('../assets/Img/office_5.jpg')} />
</View>
<View style={styles.loginContainer}>
<View style={styles.headerContainer}>
<Text style={styles.headerText}>Join us</Text>
</View>
<KeyboardAvoidingView style={styles.inputContainer}>
<PrimaryInput placeholder='Name Surname' />
<PrimaryInput placeholder='Your Email' />
<PrimaryInput placeholder='Phone Number (05***)' />
<PrimaryInput placeholder='Birth Date' />
</KeyboardAvoidingView>
<View style={styles.checkBoxContainer}>
<CheckBox text='Kvkk sözleşmesini okudum, kabul ediyorum' active={lisenceTerm} onPress={() => setLisenceTerm(!lisenceTerm)} />
<CheckBox text='Kullanıcı sözleşmesini okudum, kabul ediyorum' active={privacyPolicy} onPress={() => setPrivacyPolicy(!privacyPolicy)} />
</View>
<View style={styles.buttonsContainer}>
<PrimaryButton
buttonStyle={styles.button}
textStyle={styles.buttonText}
title='Register' />
</View>
</View>
</View>
)
}
const styles = StyleSheet.create({
screen: {
flex: 1,
},
imageContainer: {
width: '100%',
height: '34%'
},
image: {
width: '100%',
height: '100%'
},
loginContainer: {
backgroundColor: 'white',
width: '100%',
height: '71%',
position: 'absolute',
zIndex: 1,
bottom: 0,
borderTopLeftRadius: 40,
borderTopRightRadius: 40,
alignItems: 'center'
},
buttonsContainer: {
width: '100%',
justifyContent: 'center',
alignItems: 'center'
},
button: {
justifyContent: 'center',
alignItems: 'center',
width: '75%',
paddingVertical: '3%',
marginTop: hp(1.2),
borderRadius: hp(3.5),
backgroundColor: COLORS.royalBlue
},
buttonText: {
fontSize: hp(3.2),
fontFamily: 'BalooPaaji2ExtraBold',
color: 'white'
},
arrow: {
right: 20
},
inputContainer: {
width: '100%',
justifyContent: 'center',
alignItems: 'center',
marginBottom: hp(1),
},
headerContainer: {
marginTop: hp(3),
marginBottom: hp(2),
width: '75%',
},
headerText: {
fontSize: hp(3.5),
fontFamily: 'BalooPaaji2Bold',
color: COLORS.royalBlue
},
checkBoxContainer: {
width: '70%',
justifyContent: 'flex-start',
marginBottom: hp(1)
}
})
export default Register;
and here below is the result. btw I used behavior and keyboardVerticalOffset props to control the way this component behave but still same problem.
Your KeyboardAvoidingView component must be on top of render tree
In order to scroll onto your Join us view, you must set a ScrollView in your KeyboardAvoidingView and those component must be on top of renderer.
Try this (based on my iOS / android setup) :
import { KeyboardAvoidingView, ScrollView } from 'react-native';
const Register = (props) => {
const [lisenceTerm, setLisenceTerm] = useState(true);
const [privacyPolicy, setPrivacyPolicy] = useState(true);
return (
<KeyboardAvoidingView
style={{ flex: 1 }}
behavior={(Platform.OS === 'ios') ? 'padding' : null}
enabled
keyboardVerticalOffset={Platform.select({ ios: 80, android: 500 })}>
<ScrollView>
<View style={styles.screen}>
<View style={styles.imageContainer}>
<Image style={styles.image} source={require('../assets/Img/office_5.jpg')} />
</View>
<View style={styles.loginContainer}>
<View style={styles.headerContainer}>
<Text style={styles.headerText}>Join us</Text>
</View>
<View style={styles.inputContainer}>
<PrimaryInput placeholder='Name Surname' />
<PrimaryInput placeholder='Your Email' />
<PrimaryInput placeholder='Phone Number (05***)' />
<PrimaryInput placeholder='Birth Date' />
</View>
<View style={styles.checkBoxContainer}>
<CheckBox text='Kvkk sözleşmesini okudum, kabul ediyorum' active={lisenceTerm} onPress={() => setLisenceTerm(!lisenceTerm)} />
<CheckBox text='Kullanıcı sözleşmesini okudum, kabul ediyorum' active={privacyPolicy} onPress={() => setPrivacyPolicy(!privacyPolicy)} />
</View>
<View style={styles.buttonsContainer}>
<PrimaryButton
buttonStyle={styles.button}
textStyle={styles.buttonText}
title='Register' />
</View>
</View>
</View>
</ScrollView>
</KeyboardAvoidingView>
)
}
you need to install react-native-keyboard-aware-scroll-view by
yarn add react-native-keyboard-aware-scroll-view
and you need to wrap KeyboardAwareScrollView instead of KeyboardAvoidingView
like
import {KeyboardAwareScrollView} from 'react-native-keyboard-aware-scroll-view';
<KeyboardAwareScrollView>
<View>
...
</View
</KeyboardAwareScrollView>
import { useHeaderHeight } from "#react-navigation/elements"
import {
Keyboard,
Platform,
TouchableWithoutFeedback,
View,
KeyboardAvoidingView
} from "react-native"
const Chat = () => {
// This is the crucial variable we will place it in
// KeyboardAvoidingView -> keyboardVerticalOffset
const headerHeight = useHeaderHeight()
return (
<TouchableWithoutFeedback onPress={Keyboard.dismiss}>
<KeyboardAvoidingView
style={{ position: "absolute", bottom: 0, left: 0, right: 0 }}
behavior={Platform.OS === "ios" ? "padding" : "height"}
// If you want the input not to stick exactly to the keyboard
// add a const here for example headerHeight + 20
keyboardVerticalOffset={headerHeight}
>
<View style={{ flex: 1, justifyContent: "flex-end" }}>
<InputWrapper>
<RawInput />
</InputWrapper>
</View>
</KeyboardAvoidingView>
</TouchableWithoutFeedback>
)
}
Also take a look at this article it might be helpful: https://medium.com/#nickyang0501/keyboardavoidingview-not-working-properly-c413c0a200d4

React Native change integer value when button is kicked

I am having a problem changing an integer value, the code below is showing a list of item, and control how many items will be shown when the button is clicked
The variable I want to change when it is clicked,
var showdata = 5;
code for the button and want to change it to 10 when clicked, also want the text change to Less, and showdata change back to 5 when it is for the second time
<View style={externalStyle.more_buttom}>
<TouchableOpacity onPress={() => showdata == 10}>
<Text
style={{
fontWeight: "bold",
fontSize: 13,
color: "#FFF",
}}
>
More{" "}
</Text>
</TouchableOpacity>
</View>
code for the list of item, show data used at "topTen.slice"
<ScrollView
vertical
showsHorizontalScrollIndicator={false}
style={{ paddingBottom: 0 }}
>
{isLoadingTopTen ? (
<Text
style={{
fontWeight: "bold",
fontSize: 13,
color: "#FFF",
textAlign: "center",
}}
>
Loading top ten
</Text>
) : (
topTen
.slice(0, showdata)
.map((item, index) => (
<InfoCard
navigation={navigation}
brand={item.Name}
amount={item.esgrating}
key={index}
/>
))
)}
</ScrollView>
Use useState hooks for changing the value of showData.
const [showdata, setShowData] = useState(5)
//..........
<View style={externalStyle.more_buttom}>
<TouchableOpacity onPress={() => setShowdata(10)}>
<Text
style={{
fontWeight: "bold",
fontSize: 13,
color: "#FFF",
}}
>
More{" "}
</Text>
</TouchableOpacity>
</View>
Working Example: Expo Snack
import React, { useState } from 'react';
import { Text, View, StyleSheet, TouchableOpacity } from 'react-native';
import Constants from 'expo-constants';
export default function App() {
const [showdata, setShowData] = useState(5);
return (
<View style={styles.container}>
<TouchableOpacity
onPress={() => {
setShowData(10);
}}>
<View style={{ backgroundColor: 'pink', padding: 10 }}>
<Text
style={{
fontWeight: 'bold',
fontSize: 13,
color: '#000',
}}>
More {showdata}
</Text>
</View>
</TouchableOpacity>
</View>
);
}
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
paddingTop: Constants.statusBarHeight,
backgroundColor: '#ecf0f1',
padding: 8,
},
});