React_Native_Tips.js

// 1. Track API calls in network for React Native Application
// Add the below code to App.js file:
XMLHttpRequest = GLOBAL.originalXMLHttpRequest ? 
  GLOBAL.originalXMLHttpRequest : GLOBAL.XMLHttpRequest;

// 2. React Native Vertically aligning Content
container: {
  flex: 1,
  justifyContent: 'center',
  alignItems: 'center'
}

// 3. onChangeText event not working for TextInput
// It happens bcoz event handler function for onChangeText is asynchronous, hence you should use async/await
<TextInput
  onChangeText={text => this.onChange(text)}
/>

onChange = async (text) => {
  await this.setState({
    listingId: text
  })
}
  
// 4. Clear xcode simulator cache
xcrun simctl erase all