React Native, content going under navigation header, SafeAreaView not working - javascript

As you can see in the image below, I have to give some top margin in order to "not" hide my half of the content under the navigation header, isn't header supposed to be a "safe area" for the below content, to be on the safe side I provided the SafeAreaView but still my content goes under the Header and unfortunately I have to give some hardcoded margin top value to avoid hiding.
The above image is when I comment marginTop.
Above image is when I add marginTop: 70
Code:
NotificationScreen.tsx:
import {
View,
SafeAreaView,
Text,
StatusBar,
} from 'react-native';
import Animated, {FadeIn, FadeOut} from 'react-native-reanimated';
import OrderItem from '../../components/OrderItem';
const NotificationScreen = () => {
const [orders, setOrders] = useState([]);
useEffect(() => {
// calling API...
}, []);
return (
<SafeAreaView style={styles.container}>
<StatusBar backgroundColor="transparent" translucent />
<Text style={{color: 'lightgray', fontSize: 18}}>My Orders: </Text>
<Animated.FlatList
data={orders}
entering={FadeIn}
leaving={FadeOut}
contentContainerStyle={{
alignItems: 'center',
}}
keyExtractor={(_: any, index) => 'key' + index}
renderItem={({item}) => <OrderItem key={item.id} data={item} />}
/>
</SafeAreaView>
);
};
const styles = StyleSheet.create({
container: {
marginTop: 70, // if I remove this, the content goes under the header as shown in image.
flex: 1,
padding: 10,
backgroundColor: COLORS.primary,
},
});
export default NotificationScreen;
One more query, why my OrderItem not taking the full width of FlatList (see image, the gray box is not takin the full width...), I have provided width: 100% to my OrderItem container:
OrderItem.tsx:
const OrderItem = ({data}) => {
return (
<View style={styles.container}>
<View style={styles.textBlock}>
<Text style={styles.label}>Strategy: </Text>
<Text style={styles.info}>{data.strategyTitle}</Text>
</View>
// ... same views as shown in image
</View>
);
};
const styles = StyleSheet.create({
container: {
width: '100%',
paddingVertical: 10,
paddingHorizontal: 10,
alignItems: 'center',
justifyContent: 'space-between',
backgroundColor: COLORS.lightGray,
borderRadius: 10,
},
textBlock: {
flexDirection: 'row',
alignItems: 'center',
justifyContent: 'space-between',
},
label: {
color: 'grey',
fontSize: 16,
},
info: {
color: 'white',
fontSize: 16,
},
});
export default OrderItem;

The SafeAreaView does not work currently for Android devices. You need to have something like this to avoid this issue:
import { Platform,StatusBar } from "react-native";
const styles = StyleSheet.create({
container: {
paddingTop: Platform.OS == "android" ? StatusBar.currentHeight : 0,
},
});
<SafeAreaView style={styles.container}>
</SafeAreaView>
And for the OrderItem not taking all available width, remove from Animated.FlatList this:
contentContainerStyle={{alignItems: 'center'}}

Related

Unable to align text in React Native

I am new to React Native. I have created a login page with it. I want to know how I can align the Login text on the left side instead of showing it in the center.
My code:
Login.js
import React from 'react';
import { View, Text, StyleSheet, TextInput, TouchableOpacity } from 'react-native';
const Login = () => {
return (
<View style={styles.container}>
<Text style={styles.head}>
Login
</Text>
<TextInput placeholder="Username" style={styles.input}/>
<TextInput placeholder="Password" style={styles.input}/>
<TouchableOpacity style={styles.button}>
<Text style={styles.textStyle}>LOGIN</Text>
</TouchableOpacity>
</View>
)
}
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor:'white'
},
head:{
alignItems:'flex-start',
fontWeight:'bold',
fontSize:30,
marginBottom:15
},
input:{
height:50,
borderRadius:5,
backgroundColor:'#ededed',
alignSelf:'stretch',
marginLeft:15,
marginRight:15,
marginBottom:8,
paddingLeft:15
},
button:{
backgroundColor:'#e57373',
alignSelf:'stretch',
borderRadius:5,
marginLeft:15,
marginRight:15,
alignItems:'center',
padding: 15,
},
textStyle:{
fontWeight:'bold',
color:'white'
}
});
export default Login;
Let me know what I am doing wrong in the code above.
alignItems is concerned with the children of the parent container, while alignSelf deals with the element itself.
head:{
alignSelf:'flex-start',
// ...other styles
}
I can't test it right now, but it should be something like this:
Add the alignSelf and textAlign attributes to your head-styles.
head: {
alignItems: 'flex-start',
alignSelf: 'stretch',
fontWeight: 'bold',
fontSize: 30,
marginBottom: 15,
textAlign: 'left'
},

TypeError: undefined is not a function (near '...currencyFilter.map...')

I'm quite new to react native and trying to set up a search bar with search functionality. I'm trying to set it up where the list updates with each letter typed. The data is displayed fine but the error occurs when I try and type something into the search bar.
Full Error Message
https://ibb.co/Zd5hB52
Here is the file that is having issues
import { StyleSheet, Text, View, Button, StatusBar, ScrollView, TextInput } from "react-native";
import Icon from 'react-native-vector-icons/Ionicons';
import datas from "../components/CurrencyData"
import FavouritesList from "../components/FavouritesList";
const AddToFavourites = () => {
const state = {
datas: datas,
filter: datas
}
const [currencyFilter, setSearch] = useState(state.filter)
const getFlags = () => {
return currencyFilter.map(data => {
return <FavouritesList detail={data} key={data.id}/>
})
}
const searchCurrencies = (searchFor) => {
setSearch({
filterCurrency: datas.filter(i=>
i.name.toLowerCase().includes(searchFor.toLowerCase),
),
});
}
return (
<View style={styles.container}>
<View style= {styles.action}>
<Icon name="search" size={25}/>
<TextInput
style= {{flex: 1}}
placeholder= "Search..."
underlineColorAndroid="transparent"
onChangeText= {text => {searchCurrencies(text)}}
/>
</View>
<ScrollView>
<StatusBar backgroundColor="#1E90FF" barStyle="light-content"/>
{getFlags()}
</ScrollView>
</View>
)
}
const styles = StyleSheet.create({
container: {
flex: 1,
alignItems: "center",
justifyContent: "center",
},
action: {
flexDirection: 'row',
justifyContent: 'center',
alignItems: 'center',
borderWidth: 2,
height: 50,
borderRadius: 30,
paddingLeft: "4%",
paddingRight: "4%",
margin: "3%"
},
})
export default AddToFavourites;```
[1]: https://i.stack.imgur.com/kWkHo.png
with hooks you don't pass the state object like setState, you just pass the new value
change
setSearch({
filterCurrency: datas.filter(i => i.name.toLowerCase().includes(searchFor.toLowerCase)),
});
to
setSearch( datas.filter(I =>i.name.toLowerCase().includes(searchFor.toLowerCase)));

TextInput disappears under keyboard in React Native

I am making a react native app and for some reason when I tap on the text input to type something it disappears under the keyboard. I want it to come to the top of the keyboard like the way Instagram messenger and other messenger apps do it. I tried using keyboardAvoidView and setting the behavior to padding and height but none of it worked.
import {
View,
Text,
StyleSheet,
SafeAreaView,
TextInput,
TouchableOpacity,
} from "react-native";
import CommunityPost from "../components/CommunityPost";
import { Context as CommunityContext } from "../context/CommunityContext";
const Key = ({ navigation }) => {
const { createCommunityPost, errorMessage } = useContext(CommunityContext);
const [body, setBody] = useState("");
return (
<View style={styles.container}>
<SafeAreaView />
<CommunityPost />
<View style={styles.inputContainer}>
<TextInput
style={styles.input}
multiline={true}
placeholder="Type..."
placeholderTextColor="#CACACA"
value={body}
onChangeText={setBody}
/>
<TouchableOpacity
style={{ justifyContent: "center", flex: 1, flexDirection: "row" }}
onPress={() => createCommunityPost({ body })}
>
<Text style={styles.sendText}>Send</Text>
</TouchableOpacity>
</View>
</View>
);
};
const styles = StyleSheet.create({
container: {
flex: 1,
alignItems: "flex-start",
backgroundColor: "#2B3654",
justifyContent: "flex-end",
},
inputContainer: {
justifyContent: "flex-end",
flexDirection: "row",
},
sendText: {
color: "white",
fontSize: 25,
},
input: {
fontSize: 25,
color: "white",
borderColor: "#2882D8",
borderWidth: 1,
borderRadius: 15,
width: "80%",
marginBottom: 30,
marginLeft: 10,
padding: 10,
},
});
export default Key;
You must KeyboardAvoidingView component provided by react native.
<KeyboardAvoidingView
behavior={Platform.OS == "ios" ? "padding" : "height"}
style={styles.container}
>
<SafeAreaView />
<CommunityPost />
<View style={styles.inputContainer}>
<TextInput
style={styles.input}
multiline={true}
placeholder="Type..."
placeholderTextColor="#CACACA"
value={body}
onChangeText={setBody}
/>
<TouchableOpacity
style={{ justifyContent: "center", flex: 1, flexDirection: "row" }}
onPress={() => createCommunityPost({ body })}
>
<Text style={styles.sendText}>Send</Text>
</TouchableOpacity>
</View>
</KeyboardAvoidingView>
For these situations we can use one of these methods:
1.wrapping Component with <ScrollView></ScrollView>
2.wrapping Component with <KeyboardAvoidingView></KeyboardAvoidingView>
Sometimes our wrong given styles can make these happens too such as : Having a fixed value for our styles, check your margins and use one of the given methods
I hope it helps
Try using keyboardVerticalOffset and test it with different values.
For more info check this out
For those who want to keep the code clean, just use the FlatList component and add a View component involving the component with the states: {flex: 1, height: Dimensions.get ("window"). Height}.
Below left a component ready for anyone who wants to use, just wrap your component in this way:
<FormLayout>
{... your component}
</FormLayout>
Here is the solver component:
import React from 'react'
import { View, StyleSheet, FlatList, Dimensions } from 'react-native'
import Background from './Background'
const FormLayout = ({ children }) => {
const renderContent = <View style={styles.container}>
{children}
</View>
return <FlatList
ListHeaderComponent={renderContent}
showsVerticalScrollIndicator={false}
/>
}
const styles = StyleSheet.create({
container: {
flex: 1,
height: Dimensions.get('window').height * 0.95
}
})
export default FormLayout

Center text below image in react native

I'm trying to center the Edit text below the image. This the start of the profile page for an app I'm working at so I want the Edit button text to be centered below the image.
Here's the code:
import React from 'react';
import { AppRegistry, StyleSheet, Text, View, Image, TextInput, TouchableHighlight, Alert, Button } from 'react-native';
import { Constants, ImagePicker } from 'expo';
const util = require('util');
export default class TopProfile extends React.Component{
state = {
image: 'https://www.sparklabs.com/forum/styles/comboot/theme/images/default_avatar.jpg',
};
render() {
let { image } = this.state;
return (
<View style={styles.container}>
<View style={styles.column}>
<TouchableHighlight onPress={this._pickImage}>
{image &&
<Image source={{ uri: image }} style={{ width: 100, height: 100, borderRadius: 50}} />}
</TouchableHighlight>
<Button
style={styles.button}
title="Edit"
onPress={this._pickImage}
/>
</View>
</View>
);
}
_pickImage = async () => {
let result = await ImagePicker.launchImageLibraryAsync({
allowsEditing: true,
aspect: [4, 3],
});
console.log(result);
if (!result.cancelled) {
this.setState({ image: result.uri });
}
};
}
const styles = StyleSheet.create({
container: {
flex: 1,
flexDirection: 'row'
},
column:{
flex: 1,
flexDirection: 'column',
alignItems: 'flex-start',
paddingLeft: 10,
},
button: {
}
});
module.exports = TopProfile;
And this is what I'm currently getting:
Does anyone have an idea how can I fix this?
There's an error in your column style props.
You've defined alignItems: 'flex-start'. When the flexDirection: 'column', the alignItems prop effects the X-axis of the view, EG how items in the view are horizontally positioned. Setting their alignment to flex-start is not what you want here.
Change your styles to:
column:{
flex: 1,
flexDirection: 'column',
alignItems: 'center', //THIS LINE HAS CHANGED
paddingLeft: 10,
},
it's either you specify the with of the <View style={[styles.column, {width:100, justifyContent:'center'}]} or you wrap your <TouchableHighlight> and <Button> inside another <View>

React Native : View does not bound to the right

I've been dabbling with some react native code and found that my view does not have a right boundary in both android and iOS renders. So when I add a horizontal margin, the view displays margin only on the left like this.
I am also attaching my code and styles to guide me on where I would have gone wrong.
Login.js
import React,{Component} from 'react';
import {View,ToolbarAndroid,Text, Image, StatusBar,TextInput, TouchableOpacity} from 'react-native';
import styles from './styles.js'
class LogIn extends Component {
constructor(props) {
super(props)
this.state = {hostName: '', userName: '', password: ''}
}
onButtonPress() {
this.props.onSubmit && this.props.onSubmit(this.state);
}
render() {
return(
<Image style={styles.container} source={images.background}>
<StatusBar backgroundColor="#00EF6C00" translucent={true}/>
<View style={styles.logocontainer}>
<FitImage source={images.logo} resizeMode="contain" resizeMethod="scale" style= {{width: 300,position: 'absolute', left: 50, height: 100}}/>
</View>
<View style={styles.comp_container}>
<TextInput placeholder="Host Name" style={{height: 40}} onChangeText={(text) => this.setState({hostName: text})}/>
<TextInput placeholder="User Name" style={{height: 40}} onChangeText={(text) => this.setState({userName: text})}/>
<TextInput placeholder="Password" style={{height: 40}} onChangeText={(text) => this.setState({password: text})}/>
<TouchableOpacity onPress={this.onButtonPress.bind(this)} style={{height: 40, flex: 1, flexDirection: 'row'}}>
<Text style={{flex: 1}}> Submit </Text>
</TouchableOpacity>
</View>
</Image>
)
}
}
LogIn.propTypes = {
onSubmit: React.PropTypes.func,
}
export default LogIn;
Also Please find the attached stylesheet for further information on style
import { StyleSheet } from 'react-native'
const styles = StyleSheet.create({
container: {
flex: 1,
flexDirection: 'column'
},
toolbar: {
backgroundColor: '#EF6C00',
height: 56,
elevation: 3,
},
textInput: {
borderRadius: 20,
borderColor: "#FFFFFF",
height: 40,
},
button: {
height: 40,
},
logocontainer: {
flex: 1,
flexDirection: 'column',
alignItems: 'stretch',
justifyContent: 'center',
},
comp_container: {
flex: 2,
flexDirection: 'column',
justifyContent: 'center',
marginHorizontal: 16,
}
});
export default styles
Edit: It is almost palpable that the problem should be with react-native unable to decide where the view boundary is. So instead of wrapping within the view, it decides to extent it. I also would love to get to know of any tools which can help me debug the UI issues, like the uiautomationviewer for android.
You do not specify width nor resizeMode in background image so it overflows screen. By default alignItems is stretch, TouchableOpacity fills container on horizontal and also overflows screen.

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