To make <Text /> as watermark of images, it shows in official Docs:
Background Image via Nesting
A common feature request from developers familiar with the web is background-image. To handle this use case, simply create a normal <Image> component and add whatever children to it you would like to layer on top of it.
return (
<Image source={...}>
<Text>Inside</Text>
</Image>
);
I tried, the "Inside" has white background, not the part of the image.
How to make "Inside" as a watermark of the image? Thanks.
You can use ImageBackground component
Link-> https://reactnative.dev/docs/imagebackground
import React from "react";
import { ImageBackground, StyleSheet, Text, View } from "react-native";
const image = { uri: "https://reactjs.org/logo-og.png" };
const App = () => (
<View style={styles.container}>
<ImageBackground source={image} resizeMode="cover" style={styles.image}>
<Text style={styles.text}>Inside</Text>
</ImageBackground>
</View>
);
const styles = StyleSheet.create({
container: {
flex: 1,
},
image: {
flex: 1,
justifyContent: "center"
},
text: {
color: "white",
fontSize: 42,
lineHeight: 84,
fontWeight: "bold",
textAlign: "center",
backgroundColor: "#000000c0"
}
});
export default App;
Related
I am new to react native. I tried to change the background view on the container seems like it doesn't work. I attached the codes below.
Could anyone here tell me what is wrong with the code below?
const HomeScreen = () => {
return (
<SafeAreaView style={{ flex: 1 }}>
<View style={{ flex: 1, backgroundColor: '#FF0000' }}>
<Text style={{
color: COLORS.Text,
marginLeft: 14,
marginTop: 16,
width: 100,
height: 20
}}>Hello world</Text>
</View>
</SafeAreaView>
);
Check the below code:
import React from 'react';
import {StyleSheet, Text, SafeAreaView } from 'react-native';
const App = () => {
return (
<SafeAreaView style={styles.container}>
<Text style={styles.text}>Page content</Text>
</SafeAreaView>
);
};
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor:'green'
},
text: {
fontSize: 25,
fontWeight: '500',
},
});
export default App;
For more information, you can explore SafeArea Documentation.
Can someone help me with this Component, i want to make like this, but dont know how this white frames called? Can someone tell me this? And if we press that yellow Touchable Opacity it is showing whole Text, and if we press again it will became smaller!
Thanks in Advance , I am Just new in RN
You can easily create that card with a little bit of CSS.
Below is the sample app which shows you how you can achieve that.
Working Example: Expo Snack
import React, { useState, useEffect } from 'react';
import {
Text,
View,
StyleSheet,
FlatList,
Image,
TouchableOpacity,
} from 'react-native';
import { AntDesign } from '#expo/vector-icons';
import Constants from 'expo-constants';
import { newsFeed } from './news';
export default function App() {
const [news, setNews] = useState(newsFeed);
const showFull = (index) => {
const temp = [...news];
temp[index].toggle = !temp[index].toggle;
setNews(temp);
};
return (
<View style={styles.container}>
<FlatList
data={news}
renderItem={({ item, index }) => (
<View style={styles.card}>
<Text style={styles.title}>{item.title}</Text>
<Text style={styles.paragraph}>
{item.toggle ? item.desc : `${item.desc.substr(0, 100)}...`}
</Text>
{item.toggle && (
<Image source={{ uri: item.img }} style={styles.img} />
)}
<View style={styles.bottomBar}>
<Text style={styles.date}>4/02/2021</Text>
<TouchableOpacity onPress={() => showFull(index)}>
<View style={{ flexDirection: 'row', alignItems: 'center' }}>
<Text style={styles.moreBtn}>
{!item.toggle ? 'More' : 'Less'}
</Text>
<AntDesign
name={item.toggle ? 'up' : 'down'}
size={12}
color="orange"
/>
</View>
</TouchableOpacity>
</View>
</View>
)}
/>
</View>
);
}
const styles = StyleSheet.create({
bottomBar: {
marginVertical: 5,
flexDirection: 'row',
justifyContent: 'space-between',
},
container: {
flex: 1,
justifyContent: 'center',
paddingTop: Constants.statusBarHeight,
backgroundColor: '#ecf0f1',
padding: 8,
},
card: {
padding: 10,
backgroundColor: 'white',
marginVertical: 5,
borderRadius: 10,
},
title: {
marginVertical: 5,
fontSize: 18,
fontWeight: 'bold',
},
img: {
flex: 1,
height: 100,
borderRadius: 10,
marginVertical: 5,
},
paragraph: {
fontSize: 14,
},
date: {
fontSize: 12,
color: 'rgba(21,21,21,0.5)',
},
moreBtn: {
fontSize: 12,
color: 'orange',
marginRight: 10,
},
});
actually this card is not a component you can design it using css and if you want to create a component which you can reuse then you can make one component and reuse it as you want and for this card either you can use your own css or a library called native-base which is
like bootstrap but it is used in react-native
you can read about native base here for more information
https://nativebase.io/
and if you want to create card of your own then make a separate file and make a funcional card component in it
and call it wherever you like
import myCustomCard from './card'
and to use it you use like this in your jsx
<myCustomCard />
and if you want to know more about how to pass props and else you can checkout official docs of the react native here
https://reactnative.dev/docs/getting-started
I am new to React Native and I have encountered a problem: my TextBox doesn't stay above the keyboard while I am writing in it.
These are the visuals from the application
Screenshot
And this is my Signup.js:
import React, { Component } from 'react';
import {
StyleSheet,
Text,
View,
TouchableOpacity
} from 'react-native';
import Form from '../components/Form';
import Logo2 from'../components/Logo2';
import {Actions} from 'react-native-router-flux';
export default class Signup extends Component {
goBack() {
Actions.pop()
}
render() {
return(
<View style={styles.container}>
<Logo2/>
<Form type="Registrar"/>
<View style={styles.signupTextCont}>
<Text style={styles.signupText}>Ja tens uma conta? </Text>
<TouchableOpacity onPress={this.goBack}><Text style={styles.signupButton}>Entra</Text></TouchableOpacity>
</View>
</View>
)
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#232122'
},
signupTextCont: {
flexGrow: 1,
justifyContent: 'center',
alignItems: 'flex-end',
paddingVertical: 16,
flexDirection: 'row'
},
signupText: {
color: 'rgba(255,255,255,0.7)',
fontSize:16
},
signupButton: {
color: '#FFA200',
fontSize:16,
fontWeight: '500'
}
});
I don't know what I need to code.
Could you please help me?
To replicate my comment that resolved your problem; you can use the component KeyboardAvoidingView from the package react-native. It levels up the area it contains above your virtual keyboard.
Wrap your code like this:
<KeyboardAvoidingView behavior={'position'} enabled>
<View style={styles.signupTextCont}>
<Text style={styles.signupText}>Ja tens uma conta? </Text>
<TouchableOpacity onPress={this.goBack}>
<Text style={styles.signupButton}>Entra</Text>
</TouchableOpacity>
</View>
</KeyboardAvoidingView>
Here's some more info about how it works: https://facebook.github.io/react-native/docs/keyboardavoidingview.
You can wrap your code with KeyboardAvoidingView rather than a normal View so that it can actually lift up any items inside it above the keyboard. You can use <KeyboardAvoidingView behavior="padding">
Hope it helps.
The result I want to get is:
The result that I created, an icon with the writing inside:
The icon was created using an SVG, as can be seen from the code below.
But the result I obtained does not satisfy me, I cannot get the result I had proposed considering the first image, the problems are the following.
1) Rounded corners in the part of the icon, the gray area.
I don't know how I can do this using svg.
Considering that the size can vary and the gray part must be similar to the image proposed.
2) Central the text of the date considering that the size of the icon can change.
Some advice?
Link: Expo
Code:
import React, { Component } from 'react';
import { View, StyleSheet, Text } from 'react-native';
import { Constants, Svg } from 'expo';
import { MaterialCommunityIcons } from '#expo/vector-icons';
var size = 30; //300
export default class App extends Component {
render() {
return (
<View style={styles.container}>
<Text style={styles.paragraph}>
Change code in the editor and watch it change on your phone! Save to
get a shareable url.
</Text>
<MaterialCommunityIcons name="calendar-blank" size={30} color="#000" />
<View style={{ flexDirection: 'row' }}>
<Svg height={size} width={size}>
<Svg.Rect x={0} y={0} width={size} height={size} fill="#000" />
<Svg.Rect
x={size / 12}
y={size / 6}
width={size - size / 6}
height={size - 6.5}
fill="#fff"
/>
<Svg.Text fontSize={size / 2} x={size / 4} y={size / 1.5}>
21
</Svg.Text>
</Svg>
<MaterialCommunityIcons
name="calendar-blank"
size={30}
color="#000"
/>
</View>
<Text style={styles.paragraph}>
Change code in the editor and watch it change on your phone! Save to
get a shareable url.
</Text>
</View>
);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
//alignItems: 'center',
justifyContent: 'center',
paddingTop: Constants.statusBarHeight,
backgroundColor: '#ecf0f1',
},
});
My idea is a little bit different: to have one wrapper (a View component) and to use the calendar icon as a "background image" of it. Then position the dynamic date number in the middle of this wrapper:
<View style={styles.calendar}>
<MaterialCommunityIcons name="calendar-blank" size={30} color="#000" style={styles.calendarIcon} />
<Text style={styles.date}>21</Text>
</View>
Styles:
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
paddingTop: Constants.statusBarHeight,
backgroundColor: '#ecf0f1',
},
calendar: {
position: 'relative',
alignItems: 'center',
justifyContent: 'center',
width: 30,
height: 30,
},
calendarIcon: {
position: 'absolute',
top: 0,
left: 0,
right: 0,
bottom: 0
},
date: {
fontSize: 9,
marginTop: 4
}
});
Here is a working example.
I tried several codes but I only have errors every time.
How to add images from my gallery (no links) one below the other, with text
at the top and bottom of each image?
Like this:
(source: noelshack.com)
import React, { Component } from "react";
import { Text, View, StyleSheet, Image, ImageBackground,ScrollView } from "react-native";
import withBackground from "../components/WithBackground";
class LinksScreen extends Component {
render() {
return (
<ScrollView>
<text>Hi</text>
<Image source={require('./assets/images/ici.jpg')} />
<text> Hello</text>
<text> Hi2</text>
<Image source={require('./assets/images/ici2.jpg')} />
<text> Hello2</text>
</ScrollView>
);
}}
export default withBackground(LinksScreen);
I am novice,
any help would be appreciated.
Can you give a screenshot of the result you are expecting?
There is something called a FlatList you can use that to achieve a list of images.
Note : menuData is an array of objects and Item is an object that has image title and URL
<FlatList
data={this.props.menuData}
renderItem={({ item }) => {
return(
<View style={{ flexDirection: 'row' }}>
<Image source={require(item.imageURL)} />
<Text>{item.imageText}</Text>
</View>
);
}}
keyExtractor={(item) => item.title }
/>
Use this style for Text:
textStyle: {
flex: 1,
width: '100%',
position: 'absolute',
alignSelf: 'center',
backgroundColor: 'rgba(0.57, 0.57, 0.57, 0.3)',
height: '100%',
}
I am going to show you a possibility of working with native-base, but it's just a suggestion. You can see some possibilities in the official docs: https://docs.nativebase.io/Components.html#Components
import React, { Component } from 'react';
import { Image, ImageBackground, View } from 'react-native';
import { Card, CardItem, Text, Left, Right } from 'native-base';
import styles from './styles';
class ProductImage extends Component {
render() {
return (
<View style={{ flex: 1 }}>
<ImageBackground
style={ styles.image }
source={{ uri: this.props.photo }}
>
</ImageBackground>
</View>
);
}
}
export default ProductImage
So if you want to put a photo without props, it's just put the link image, like 'https://www.w3schools.com/w3css/img_lights.jpg'. Don't forget to install the dependence: npm install native-base --save
Can you try this once:
<ScrollView>
<View>
<Text>Hi</Text>
<Image source={require('./assets/snack-icon.png')} style={{ width: '100%',
height: 150, marginBottom: 10, padding: 10 }} resizeMode="cover" />
</View>
<View>
<Text> Hi2</Text>
<Image source={require('./assets/snack-icon.png')} style={{ width: '100%',
height: 150, marginBottom: 10, padding: 10 }} resizeMode="cover" />
<Text> Hello2</Text>
</View>
</ScrollView>