componentWillMount, componentWillReceiveProps and render being called twice times #16806
Description
Is this a bug report?
Yes
Bug
I created new app with react-native-init ,
and i added log to know it's a bug from react-native or from my code ;
export default class App extends PureComponent<{}> {
componentWillMount() {
console.log('componentWillMount');
}
componentDidMount() {
console.log('componentDidMount');
}
componentWillReceiveProps() {
console.log('componentWillReceiveProps');
}
render() {
console.log('render')
return (
<View style={styles.container}>
<Text style={styles.welcome}>
BUG WITH React Native!
</Text>
</View>
);
}
}
This is the result of log :
2017-11-13 09:37:41.369 [info][tid:com.facebook.react.JavaScript] componentWillMount
2017-11-13 09:37:41.368865+0100 myapp[14909:120213] componentWillMount
2017-11-13 09:37:41.369 [info][tid:com.facebook.react.JavaScript] render
2017-11-13 09:37:41.369192+0100 myapp[14909:120213] render
2017-11-13 09:37:41.378 [info][tid:com.facebook.react.JavaScript] componentDidMount
2017-11-13 09:37:41.378381+0100 myapp[14909:120213] componentDidMount
Environment
Environment:
OS: macOS Sierra 10.12.6
Node: 6.11.2
Yarn: 1.3.2
npm: 5.5.1
Watchman: 4.7.0
Xcode: Xcode 9.1 Build version 9B55
Android Studio: 2.3 AI-162.4069837
Packages: (wanted => installed)
react: 16.0.0 => 16.0.0
react-native: 0.50.3 => 0.50.3
Target Platform: iOS (10.3)