By default buttons created in react native application is in rectangle shape and dose not support rounded corners. So in this tutorial we would going to make a Rounded Corners Button in react native app using TouchableOpacity. TouchableOpacity component is used to wrap a view which can respond on button click events. So let’s get started .
Contents in this project Create Rounded Corners Button in React Native app :
1. Start a fresh React Native project. If you don’t know how then read my this tutorial.
2. Import AppRegistry, StyleSheet, Text, View, TouchableOpacity and Alert in your project.
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import React, { Component } from ‘react’;
import { AppRegistry, StyleSheet, Text, View, TouchableOpacity ,Alert} from ‘react-native’;
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3. Create a function named as ButtonClickCheckFunction. This function would call on TouchableOpacity onPress event.
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ButtonClickCheckFunction = () =>{
Alert.alert(“Button Clicked”)
}
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4. Create a Root View inside the render’s return block.
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render() {
return (
<View style={styles.MainContainer}>
</View>
);
}
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5. Create TouchableOpacity component inside the Root View.
style : Used to call the CSS Style class.
activeOpacity : Determines opacity of wrapped view when its clicked.
onPress : Calls the function on TouchableOpacity onPress event.
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render() {
return (
<View style={styles.MainContainer}>
<TouchableOpacity
style={styles.SubmitButtonStyle}
activeOpacity = { .5 }
onPress={ this.ButtonClickCheckFunction }
>
<Text style={styles.TextStyle}> SUBMIT </Text>
</TouchableOpacity>
</View>
);
}
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6. Create CSS Style classes for Root View, TouchableOpacity and Text component.
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const styles = StyleSheet.create({
MainContainer: {
flex: 1,
justifyContent: ‘center’,
backgroundColor: ‘#F5FCFF’,
},
SubmitButtonStyle: {
marginTop:10,
paddingTop:15,
paddingBottom:15,
marginLeft:30,
marginRight:30,
backgroundColor:‘#00BCD4’,
borderRadius:10,
borderWidth: 1,
borderColor: ‘#fff’
},
TextStyle:{
color:‘#fff’,
textAlign:‘center’,
}
});
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7. Complete source code for index.android.js / index.ios.js file:
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import React, { Component } from ‘react’;
import { AppRegistry, StyleSheet, Text, View, TouchableOpacity ,Alert} from ‘react-native’;
export default class Myproject extends Component {
ButtonClickCheckFunction = () =>{
Alert.alert(“Button Clicked”)
}
render() {
return (
<View style={styles.MainContainer}>
<TouchableOpacity
style={styles.SubmitButtonStyle}
activeOpacity = { .5 }
onPress={ this.ButtonClickCheckFunction }
>
<Text style={styles.TextStyle}> SUBMIT </Text>
</TouchableOpacity>
</View>
);
}
}
const styles = StyleSheet.create({
MainContainer: {
flex: 1,
justifyContent: ‘center’,
backgroundColor: ‘#F5FCFF’,
},
SubmitButtonStyle: {
marginTop:10,
paddingTop:15,
paddingBottom:15,
marginLeft:30,
marginRight:30,
backgroundColor:‘#00BCD4’,
borderRadius:10,
borderWidth: 1,
borderColor: ‘#fff’
},
TextStyle:{
color:‘#fff’,
textAlign:‘center’,
}
});
AppRegistry.registerComponent(‘Myproject’, () => Myproject);
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Screenshot in Android Application :
Screenshots in iOS mobile application :
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