Solving the Border Radius and Background Color Issue in React Native

Solving the Border Radius and Background Color Issue in React Native

17 December 2024 Stephan Petzl Leave a comment Tech-Help

Developers often encounter a peculiar issue in React Native where the borderRadius styling doesn’t seem to apply correctly to components with a background color, leaving the background in a square shape despite the rounded corners. This guide will help you address this problem using effective techniques and best practices.

Understanding the Problem

The issue typically arises when styling a TouchableHighlight or similar component, where the borderRadius is applied alongside a backgroundColor. Due to the component’s layout behavior, the background color may not follow the border radius, especially on certain platforms.

The most effective and widely adopted solution involves adjusting the styling approach. Follow these steps to ensure consistent behavior across both iOS and Android devices:

  1. Move the styling properties, such as backgroundColor and borderRadius, directly to the TouchableHighlight component instead of the nested text element.
  2. Ensure the overflow property is set to hidden to ensure the background respects the border radius.

Example Code

Here is an example of how you can implement this solution:

submit: {
  marginRight: 40,
  marginLeft: 40,
  marginTop: 10,
  paddingTop: 20,
  paddingBottom: 20,
  backgroundColor: '#68a0cf',
  borderRadius: 10,
  borderWidth: 1,
  borderColor: '#fff',
},
submitText: {
  color: '#fff',
  textAlign: 'center',
}

Use this styling in your component:

<TouchableHighlight
  style={styles.submit}
  onPress={() => this.submitSuggestion(this.props)}
  underlayColor='#fff'>
    <Text style={[this.getFontSize(), styles.submitText]}>Submit</Text>
</TouchableHighlight>

Additional Considerations

For more advanced configurations and to ensure compatibility across different devices, consider wrapping your Text components within a View or another suitable container. Apply the borderRadius to the container instead of directly to the Text to avoid platform-specific inconsistencies.

Leveraging Automation Tools

When developing and testing mobile applications, ensuring consistent UI behavior across different devices and platforms can be challenging. This is where automation tools like Repeato can be instrumental. Repeato is a no-code test automation tool that simplifies the process of creating, running, and maintaining automated tests for your React Native apps. Its computer vision and AI capabilities allow for fast and efficient testing, ensuring your components behave as expected across both iOS and Android environments.

For further reading on managing React Native styles and testing strategies, explore our blog and documentation sections.

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