I am using React Native Typescript for my. In My app there are three elements one is Map, bottom-sheet (which position is absolute) and One button. I have created one custom bottom sheet. Bottom-sheet is animated Scrollable. Inside the Bottom-sheet I used Custom search bar and under the search bar there is Flat-list where I am rendering the data. In IOS simulator I can see the FlatList card under the Button. which is really bad from UI (IOS-Image) but in Android it looks perfect Android-simulator. I want to hide the flat-List data which is coming under the button. I tried background color white and tried with height, width, bottom.But none of of work. I want to make efficient css position instead of hard code position. But I don't know how to fixed it.
I share my code in Expo-snacks
This is my custom Bottom-sheet
import React from "react";
import {
SafeAreaView,
StyleSheet,
Text,
useWindowDimensions,
TouchableOpacity,
View,
} from "react-native";
import Animated, {
Extrapolate,
interpolate,
useAnimatedGestureHandler,
useAnimatedStyle,
withTiming,
} from "react-native-reanimated";
import { PanGestureHandler } from "react-native-gesture-handler";
import styled from "styled-components/native";
interface Props {
panY: number;
children: React.ReactNode;
}
export default function BottomSheet({ panY, children }: Props) {
const { height } = useWindowDimensions();
const gestureHandler = useAnimatedGestureHandler(
{
onStart(_, context) {
context.startY = panY.value;
},
onActive(event, context) {
panY.value = context.startY + event.translationY;
},
onEnd() {
if (panY.value < -height * 0.4) {
panY.value = withTiming(-(height * 0.6));
} else {
panY.value = withTiming(0);
}
},
},
[height]
);
const animatedStyle = useAnimatedStyle(() => {
return {
transform: [
{
translateY: interpolate(panY.value, [-1, 0], [-1, 0], {
extrapolateLeft: Extrapolate.EXTEND,
extrapolateRight: Extrapolate.CLAMP,
}),
},
],
};
});
return (
<PanGestureHandler onGestureEvent={gestureHandler}>
<Animated.View
style={[styles.container, { top: height * 0.7 }, animatedStyle]}
>
{children}
</Animated.View>
</PanGestureHandler>
);
}
const styles = StyleSheet.create({
container: {
position: "absolute",
top: 0,
left: 0,
right: 0,
backgroundColor: "white",
shadowColor: "black",
shadowOffset: {
height: -6,
width: 0,
},
shadowOpacity: 0.1,
shadowRadius: 5,
borderTopEndRadius: 15,
borderTopLeftRadius: 15,
},
});This is My App component
import React, { useState } from "react";
import {
StyleSheet,
Text,
View,
Dimensions,
useWindowDimensions,
SafeAreaView,
StatusBar,
RefreshControl,
} from "react-native";
import styled from "styled-components/native";
import MapView from "react-native-maps";
import { useSharedValue } from "react-native-reanimated";
import { FlatList } from "react-native-gesture-handler";
import BottomSheet from "./ActionSheet";
import BottomButton from "./BottomButton";
import SafeAreaWrapper from "./SafeAreaWrapper";
import SearchBar from "./SearchBar";
const { width, height } = Dimensions.get("screen");
const api =
"http://open-api.myhelsinki.fi/v1/events/?distance_filter=60.1699%2C24.9384%2C10&language_filter=en&limit=100";
const initialRegion = {
latitudeDelta: 15,
longitudeDelta: 15,
latitude: 60.1098678,
longitude: 24.7385084,
};
export default function App() {
const { width, height } = useWindowDimensions();
const [loading, setLoading] = useState(false);
const [data, setData] = React.useState([]);
const updateState = async () => {
try {
const response = await fetch(api);
const data = await response.json();
setData(data.data);
} catch (error) {
console.log("failed to catch", error);
}
};
React.useEffect(() => {
updateState();
}, []);
const y = useSharedValue(0);
return (
<SafeAreaWrapper>
<Container>
<MapContent>
<MapView style={styles.mapStyle} initialRegion={initialRegion} />
</MapContent>
<BottomSheet panY={y}>
<Content>
<SearchContainer>
<SearchBar placeholder={"write some thing"} />
</SearchContainer>
{data && data === undefined ? (
<Text>loading</Text>
) : (
<HeroFlatList
data={data}
showsVerticalScrollIndicator={false}
refreshControl={
<RefreshControl
enabled={true}
refreshing={loading}
onRefresh={updateState}
/>
}
keyExtractor={(_, index) => index.toString()}
renderItem={({ item, index }) => {
const image = item?.description.images.map((img) => img.url);
const startDate = item?.event_dates?.starting_day;
return (
<EventContainer key={index}>
<EventImage
source={{
uri:
image[0] ||
"https://res.cloudinary.com/drewzxzgc/image/upload/v1631085536/zma1beozwbdc8zqwfhdu.jpg",
}}
/>
<DescriptionContainer>
<Title ellipsizeMode="tail" numberOfLines={1}>
{item?.name?.en}
</Title>
<DescriptionText>
{item?.description?.intro ||
"No description available"}
</DescriptionText>
<DateText>{startDate}</DateText>
</DescriptionContainer>
</EventContainer>
);
}}
/>
)}
</Content>
</BottomSheet>
<ButtonContainer>
<BottomButton
title={"Save"}
onPress={() => {
console.log("jjj");
}}
/>
</ButtonContainer>
</Container>
</SafeAreaWrapper>
);
}
const styles = StyleSheet.create({
mapStyle: {
width: width,
height: height, // I DON'T KNOW HOW TO CONVERT THEM INTO STYLED COMPONENT
},
});
const HeroFlatList = styled(FlatList).attrs({
contentContainerStyle: {
paddingTop: 20,
paddingBottom: 2000, // BAD PRACTICE
flexGrow: 1, //SEEMS LIKE IT DOES NOT WORK
},
})`
height: 2000px; // BAD PRACTICE
`;
const MapContent = styled.View`
flex: 1;
`;
const Content = styled.View`
flex: 1;
padding: 20px;
`;
const Container = styled.View`
flex: 1;
`;
const ButtonContainer = styled.View`
background-color: #fdfbfb; // My Button container
`;
const TextName = styled.Text`
color: orange;
font-weight: bold;
`;
const SearchContainer = styled.View`
margin-bottom: 5px;
`;
const Title = styled.Text`
font-size: 16px;
font-weight: 700;
margin-bottom: 5px;
`;
const DescriptionText = styled(Title)`
font-size: 14px;
opacity: 0.7;
`;
const DateText = styled(Title)`
font-size: 14px;
opacity: 0.8;
color: #0099cc;
`;
const EventImage = styled.Image`
width: 70px;
height: 70px;
border-radius: 70px;
margin-right: 20px;
`;
const DescriptionContainer = styled.View`
width: 200px;
`;
const EventContainer = styled.View`
flex-direction: row;
padding: 20px;
margin-bottom: 10px;
border-radius: 20px;
background-color: rgba(0, 0, 0, 0.8);
`;