React Native provides StatusBar component to control your app status bar. You can easily create a white color StatusBar with the following snippet:
<StatusBar translucent backgroundColor="white"/>
Yes, there’s a problem with the above snippet, the whole status bar turns to white and you can’t see the content such as signal, battery etc. In such cases, you can use barStyle prop of StatusBar component. Adding the barStyle value ‘dark-content’ will make the content of white status bar visible. Just go through the snippet below:
<StatusBar translucent backgroundColor="white" barStyle="dark-content" />
For more information, you may go through the official document on StatusBar component.