I just created a new React Native project and was working on the UI bit. I tried to write some text within <Text>Hello world!</Text> and it was working fine:
Hello world!
But when I added fontWeight: 'bold' to the same, it truncated and showed something like this:
Hel..
I've only tested this in android.
My React project version details:
react-native-cli: 2.0.1
react-native: 0.52.0
I have no idea why the text is truncating itself. Is this a known issue in the 0.52.0 because I've been using the same method to set text bold and the issue never occurred in 0.48.2
EDIT:
I just realized, this happens when I have inside a with a style property alignItems: 'center' . I have no idea why this still happens though. Here's my code:
<View style={{alignItems:'center'}}>
<Text style={{fontWeight: 'bold'}}>Helloworld!</Text>
</View>
Thanks!
my coworker had the same problem, we solved by changing the font (through font-family). Most probably a bug from react...
You can use flex:1 and flexDirection:"column" at view level style if you want your content to come line by line. like this:-
<View style={{flex:1, flexDirection:"column"}}>
<Text style={{fontWeight: 'bold'}}>Helloworld!</Text>
</View>
or if you don't want to use flexDirection then you can use alignSelf: 'stretch', textAlign: 'center'. like this:-
<View style={{ alignSelf: 'stretch', textAlign: 'center'}}>
<Text style={{fontWeight: 'bold'}}>Helloworld!</Text>
</View>
You can use flexGrow:1 on the Text element, e.g.:
<Text style={{flexGrow:1, fontWeight:'bold'}}> General Checkup </Text>
Related
I am noticing the following code in ReactNative (React 0.59), which represents a single search result item, is sometimes cutting off the last line of text on a client's android phone (but not on any of my android phones or simulators)
<View style={this.props.style}>
<View style={{ flexDirection: 'row' }}>
<Text style={styles.textStyle}>
{this.itemSentences()}
</Text>
</View>
<View style={{justifyContent: 'center', alignItems: 'center', flex: 1, marginTop: -7}}>
<Text style={{color: '#000', fontSize: ellipsisFontSize, fontWeight: '600'}}>{ellipsisText}</Text>
</View>
</View>
In the image below, you can see the effect, which is an incomplete sentence being rendered:
It almost looks like there isn't enough room to render the rest of the text, so it cuts it off. Again, on my phone, it renders the whole paragraph but in the client's screen shot, it is cut off.
Any initial suggestions or things I can do? I tried reducing the font, increasing the font, changing padding, but no luck. What other details can I provide? Thank you!
Edit:
Here is the container the above list items appear in:
<View style={styles.containerStyle}>
<FlatList
onContentSizeChange={ (x, y) => { this.layoutChanged(x, y) } }
onLayout={(event) => this.layoutChanged(event)}
keyboardShouldPersistTaps="always"
keyExtractor={(item, index) => index.toString()}
data={dataSource}
ListFooterComponent={footer}
ListHeaderComponent={header}
scrollEventThrottle={16}
onScroll={this.handleScroll.bind(this)}
language={this.props.language}
renderItem={this.renderItem.bind(this)}
/>
<AnimatedEditedResults
style={[editResultsStyle, {transform: [{translateX: this.state.editResultsOverlayX}]}]}
editResultsXButtonPressed={this.hideEditResultsOverlay.bind(this)}
applyFilterPressed={this.applyFilterPressed.bind(this)}
searchResults={this.props.originalSearchResults.Results}
selectedSources={this.props.selectedSources}
sentenceNumber={this.props.sentenceNumber}
hasMadeChanges={this.props.hasMadeChanges}
clearFilterPressed={this.props.clearFilterPressed}
language={this.props.language}
/>
</View>
Any reason why you cant wrap the component in a ScrollView
After playing with over 100+ different kinds of builds, different attempts, etc. I finally found the issue.
There is a property on called "TextBreakStyle" and by default it is "complex". By changing to "Simple", the issue went away. This apparently only plagues certain types of phones/devices.
Hope this helps someone!
Hey so I'm very inexperienced with coding and react-native in general, but I'm trying to create a modal which pops up with a little info box for the user and blurs out the background page. I was able to get a modal working and tweaked it for my specifications until it works great! I imported the library 'expo-blur' and found an example online of it being used, but I can't figure out how I would implement the blur into my Modal. Please any help with this would be extremely appreciated! I've attached images of my Modal code and the expo-blur example I found, below.
Modal
BlurView example
I had the same problem and I have just found this example. Now it works.
https://github.com/Kureev/react-native-blur/issues/105#issuecomment-257872152
In the example he is using class components, I'm using function components. The problem was I wasn't using transparent={true} for the modal
This is my code to make it work:
<Modal visible={filterScreen} animationType="slide" transparent={true}>
<View style={{ marginTop: 100, flex: 1 }}>
<BlurView
intensity={100}
style={[styles.nonBlurredContent, { height: "100%" }]}
>
<Text>Hello! I am bluring contents underneath</Text>
<Text>Hello from the modal</Text>
<TouchableOpacity
style={{ backgroundColor: "red", width: 30, height: 30 }}
onPress={() => setFilterScreen(!filterScreen)}
>
<Text>X</Text>
</TouchableOpacity>
</BlurView>
</View>
</Modal>
(also posted in https://github.com/facebook/react-native/issues/27583)
Update: a day passed and I started my app again. Didn't change anything since posting the question. Now it works fine. No idea what happened...
From the fact that two people marked this question as useful, I understand that I am not the only one having this problem...
I am running a very basic 'app' (a single file, a single component) for which the code is attached below, using React native 0.61.
Developing for android, on windows 10 with genymotion.
Fast Refresh is turned on, but it doesn't seem to work, for example, when:
I am changing the 'Posts' string to 'New Posts'
When I remove the posts button
Only the debug menu's "reload" refreshes the app and renders the changes.
Any idea why?
Here is the code:
import React, { useState } from 'react';
import { View, TouchableOpacity, Text, StyleSheet } from 'react-native';
export const App = () => {
const [resource, setResource] = useState('todos');
return (
<View style={{ flex: 1, alignItems: 'center', marginTop: 30 }}>
<View style={{ flexDirection: 'row', marginTop: 0,
alignItems: 'center', justifyContent: 'center' }}>
<TouchableOpacity onPress={() => (setResource('posts'))}>
<View style={styles.button}>
<Text style={styles.buttonText}>
Posts
</Text>
</View>
</TouchableOpacity>
<View style={{ width: 20 }} />
<TouchableOpacity onPress={() => setResource('todos')}>
<View style={styles.button}>
<Text style={styles.buttonText}>
Todos
</Text>
</View>
</TouchableOpacity>
</View>
</View>
);
}
const styles = StyleSheet.create({
buttonText: {
color: 'black',
fontSize: 20
},
button: {
backgroundColor: '#a8a',
justifyContent: 'center',
alignItems: 'center',
paddingVertical: 5,
paddingHorizontal: 10,
borderRadius: 2
}
});
I've found that sometimes the Metro Bundler gets 'stuck'. That would explain why when you ran it the next day, it worked fine.
When things get weird for (seemingly) no apparent reason, I do:
yarn start --reset-cache
In my case I ran watchman watch-del-all and suddenly I lost fast reload.
Re-installing node_modules and clear & rebuilding app did not help me.
Update: a day passed and I started my app again. Didn't change anything since posting the question. Now it works fine. No idea what happened...
Got a hint from this and restarted my computer. Now it works fine.
I had the same issue few minutes back. Fast refresh was not working even though it was enabled. I closed the metro bundle and started the new instance. Worked for me.
I'm trying to create an image with a text on it, and in order for the the text to be clearly seen I need to make the image darker.
Also (don't sure if it matters or not) I need the background image to be touchable.
This question was asked several times here and I've seen some answers, but none of them worked for me, so I'm wondering if I'm missing something more crucial here.
My code is the following:
<View style={postStyles.container}>
<TouchableOpacity onPress={() =>
this.props.navigation.navigate('AnotherWindow')}>
<ImageBackground source={require('../../assets/images/my_img.jpg')}
style={{width: '100%', height: 150}}>
<Text style={postStyles.title} numberOfLines={2}>
My text
</Text>
</ImageBackground></TouchableOpacity>
From looking around here, I've tried the following solutions:
Tried to wrap the text element inside the imagebackground tag inside a
View element that has a style property of "backgroundColor" with value of 'rgba(255,0,0,0.5)' (also tried different values),
Tried to add this backgroundColor property to the styles of both the container itself, the TouchableOpacity element
Tried to above two solutions with the "elevation" property instead of backgroundColor (I work in Android).
None of the above solutions worked, in a sense that the background image didn't change at all, so I'm wondering if I'm missing something more crucial.
Thanks!
If anyone still having problems with the ImageBackground component, this is how i solved it, basically i set a view inside the image background which has the backgroundColor that darkens the image.
<ImageBackground
source={Images.background}
style={styles.imageBackground}
>
<View style={styles.innerContainer}>
{content}
</View>
</ImageBackground>
const styles = StyleSheet.create({
imageBackground: {
height: '100%',
width: '100%'
},
innerContainer: {
flex: 1,
backgroundColor: 'rgba(0,0,0, 0.60)'
},
});
if you want to make the image darker, you'll need the Image component and use the tintColor prop like:
<Image source={require('./your_image.png')} style={{ tintColor: 'cyan' }}>
this tintColor prop only works for Image component not ImageBackground, also if you want to add a text on the Image component, you'll need to positioning that text with position: 'absolute' or 'relative'
<View style={postStyles.container}>
<TouchableOpacity
onPress={() => his.props.navigation.navigate('AnotherWindow')}>}
>
<Image
source={require('./my_image.png')}
resizeMode="contain"
style={{ width: '100%', height: 150, tintColor: 'cyan' }}
/>
<Text style={postStyles.title} numberOfLines={2}>
My text
</Text>
</TouchableOpacity>
</View>
Also, if you implement this approach you'll need to calculate the dimensions of the screen for each device, well you'll need to check this other component from react-native: https://facebook.github.io/react-native/docs/dimensions
Please, let me know if this works :D
You should just add tintColor to ImageBackground imageStyle and you're done. easy peasy!
<TouchableOpacity onPress={() => this.props.navigation.navigate('AnotherWindow')}>
<ImageBackground source={require('../../assets/images/my_img.jpg')}
style={{width: '100%', height: 150}}
imageStyle={{tintColor: 'rgba(255,0,0,0.5)'}}>
<Text style={postStyles.title} numberOfLines={2}>
My text
</Text>
</ImageBackground>
</TouchableOpacity>
I am using React Native's flexbox (not css flexbox). I am creating an image gallery and the first image has to be double the size, and the rest of the images smaller. Works good, but I have a problem that the third image is displayed in new row, instead where the blank space is.
Is it possible to achieve such behaviour with flex-box, so that the third image would be below the first small image?
I tried all combinations with aligning items, self aligning, flex directions, but no success. If needed I can provide a small example of the code which I already have.
I don't have a fully responsive answer, but this may be helpful here:
<View style={{ flexDirection: 'column' }}>
<View style={{ flexDirection: 'row' }}>
{this.renderPhoto(0)}
<View>
{this.renderPhoto(1)}
{this.renderPhoto(2)}
</View>
</View>
<View style={{ flexDirection: 'row' }}>
{render rest...}
</View>
</View>
Try this component. Maybe it will help you
https://xudafeng.github.io/autoresponsive-react/