We Keep Coding

react native ImageBackground not using full width

I have a Screen:
return (
<SafeAreaView style={styles.container}>
<ImageBackground source={require('../../../../assets/start.png')} resizeMode="cover" style={styles.image}>
<Text>Some Text</Text>
</ImageBackground>
</SafeAreaView>
);
And these are the styles I'm using:
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: 'white',
},
image: {
flex: 1,
justifyContent: 'center',
},
})
The problem is my background Image has white space around it.
From the above image you can see that the image has a gap at the top and the left side, it also has the same gap on the bottom and right.
Im trying to get this image edge to edge. Any idea?
iv tried adding 100% width and height and applying resize properties to the image, but its not working?

React Native Paper ProgressBar Not visible

Hello i was following along a tutorial and it was going fine, until the tutor used react-native-paper ProgressBar in his project, I wrote exactly same but it was not visible, I found the documentation and plugged it, still not visible.
What am i Doing wrong?
import {View, StyleSheet, Text} from 'react-native' ;
import { ProgressBar, Colors } from 'react-native-paper';
import CountDown from '../comps/CountDown.js' ;
const Timer = ({task}) => {
return (
<View style={styles.container}>
<CountDown />
<Text style={styles.text}> Focusing On:</Text>
<Text style={[styles.text, styles.textBold]}> {task} </Text>
<ProgressBar progress={0.4} color='#5E84E2' style={styles.progress}/>
</View>
) ;
}
const styles = StyleSheet.create({
container : {
flex: 1,
width: 100,
alignItems: 'center' ,
justifyContent: 'center',
paddingTop: 40,
},
text: {
// flex: 0.5,
color: 'white'
},
textBold: {
fontWeight: 'bold' ,
// borderColor: 'white',
// borderWidth: 1,
// borderStyle: 'solid' ,
},
progress: {
height: 10,
// borderColor: 'white',
// borderWidth: 1,
// borderStyle: 'solid' ,
}
}) ;
export default Timer ;
Also, If i were to Give border to the progressBar, it appears but keep on increasing in width even when width is more than the viewport width. I dont know what is happening

The problem here is when you use alignItems the children components need to have a fixed width, your progress bar doesnet have a fixed width.
You will have to provide a with in the styles.
progress: {
height: 10,
width:50
}
Based on documentation default value for width is
auto (default value) React Native calculates the width/height for the
element based on its content, whether that is other children, text, or
an image.
Better have a value for width which will solve your issue.

A responsive solution
Currently ProgressBar doesn't support the flex styling system.
If someone is also looking to make the width equal to 100% if it's parrent component, there is a good recommended solution provided here.
Just set the width to undefined:
progress: {
height: 10,
width:undefined
}
e.g.
<View style={{ flex: 2, other flex styles }}>
<ProgressBar progress={0.5} color="white" style={{ height: 5, width: undefined }} />
</View>

React Native: Why my text breaks like this and why is it not respecting the container margin?

I want to display multiple elements next to each other in React Native (with a flex wrap if there are too many elements or if the elements are too long). Each element consists of an icon and a text. If the text is too long, the text should break into the next line.
I tried different things with flexGrow and flexShrink but nothing had the desired effect. Here is my code (expo snack):
export default function App() {
function iconWithText(text) {
return (
<View style={styles.iconWithTextWrapper}>
<View style={{paddingRight: 10, backgroundColor: 'grey'}}>
<Text>Icon</Text>
</View>
<View style={{backgroundColor: 'yellow'}}>
<Text>{text}</Text>
</View>
</View>
)
}
return (
<View style={styles.container}>
{iconWithText('short text')}
{iconWithText('short text')}
{iconWithText('this is a long, long, long text that does break very ugly')}
</View>
);
}
const styles = StyleSheet.create({
container: {
marginTop: 50,
marginHorizontal: 50,
flex: 1,
flexDirection: 'row',
flexWrap: 'wrap',
justifyContent: 'flex-start',
},
iconWithTextWrapper: {
flexDirection: 'row',
margin: 10,
}
});
Here is the corresponding result - as you can see the margin of the whole container is not respected and the text does not break very well:
Why is the right margin of the container not respected, why does the text break like this and how can I fix this?

Try adding a flex:1 to your text style.
edit:
I played around in your snack and came up with this:
https://snack.expo.io/#moistbobo/iconwithtext
Please see if this fits your use case.

React Native FlatList with clickable items

I'm building a custom line style for a react-native FlatList.
I want the user to navigate to item details when clicking on the line text, or navigate to another page (drill down next level) when clicked on the right caret, something like:
Here is my current list components code:
class MyList extends Component {
handleShowDetails = index => {
...
};
handleDrillDown = index => {
...
}
render = () => {
let data = // Whatever data here
return (
<View style={styles.container}>
<FlatList
data={data}
keyExtractor={(item, index) => index.toString()}
renderItem={({ item }) => (
<MyListItem
onTextPress={this.handleShowDetails}
onCaretPress={this.handleDrillDown}
item={item}
/>
)}
/>
</View>
);
};
}
export default MyList;
const styles = StyleSheet.create({
container: {
flex: 1
},
item: {
padding: 10,
fontSize: 18,
height: 44,
backgroundColor: colors.white,
borderStyle: "solid",
marginBottom: 1
}
});
And my list item component:
class MyListItem extends Component {
handleTextPress = () => {
if (this.props.onTextPress) this.props.onTextPress(this.props.item.id);
};
handleIconPress =() => {
if (this.props.onCaretPress) this.props.onCaretPress(this.props.item.id)
}
render = () => {
return (
<View style={styles.container}>
<View style={styles.textContainer}>
<Text onPress={this.handleTextPress}>{this.props.item.title}</Text>
</View>
<View style={styles.iconContainer}>
<Button onPress={this.handleIconPress}>
<Icon name="ios-arrow-forward"/>
</Button>
</View>
</View>
);
};
}
export default MyListItem;
const styles = StyleSheet.create({
container: {
flex: 1,
flexDirection: "row",
justifyContent: "space-between",
alignItems: "center",
backgroundColor: colors.white,
marginBottom: 1,
height: 30
},
textContainer: {
backgroundColor: colors.light,
paddingLeft: 5,
fontSize: 26
},
iconContainer: {
alignSelf: "flex-end",
backgroundColor: colors.primary,
paddingRight: 5,
fontSize: 26
}
});
Problems I'm facing:
a. Clicking on text is not working properly. Sometimes it navigates but most of time I cannot navigate, specially if I click on the empty space between the text and the caret.
b. I simply cannot style the fontSize of the text.
c. I'm not being able to space then accordingly.
d. I need to vertical center both itens on row.
Here is what I'm getting for now:

For the clicking issue, you could set an TouchableHighlight or a TouchableOpacity for the View.
For spacing and alignment issues, maybe you could set the text to flex: 9 and the icon to flex: 1 with FlexBox. Here are the docs for that https://facebook.github.io/react-native/docs/flexbox.html.

a. Try to make the text full the cell. I can see your text just in 50% of the cell. style <Text> with height: 44
b. fontsize has to be placed in the <Text> component. You are placing it in <View> component
c. "I'm not being able to space then accordingly". I can't get your point clearly.
d. Try justifyContent: 'center' in iconContainer

For part a I would suggest an improvement over Anthu's answer:
I you want the entire textContainer to be clickable I suggest using TouchableWithoutFeedback (or another Touchable which suits your needs) and wrap this around the textContainer View

Transparent part of png Image showing white colour

I have a png image inside Image tag. Part of the image has transparent background. In my android phone it's showing white colour. I want the white part to be removed and make that transparent.
Here's my code -
export default class LoginScreen extends Component {
render() {
return (
<View style={styles.container}>
<View style = {styles.topContainer}>
<Image style = {styles.logoContainer}
source = {require('../images/black_header.png')} />
</View>
</View>
);
}
}
const styles = StyleSheet.create({
logoContainer: {
resizeMode: 'contain',
backgroundColor: "rgba(0,0,0,0)",
width: null,
height: 254,
},
container: {
backgroundColor: "#f7f7f7"
},
topContainer: {
backgroundColor: "rgba(0,0,0,0)"
}
});

I don't know if you're having the same problem that me, but I had some similar issue and resolved it adding StyleSheet.absoluteFillObject to the logoContainer.

write in image style={{ position:'absolute'}}