Thanks for submitting a pull request! Please provide enough information so that others can review your pull request: (You can skip this if you're fixing a typo or adding an app to the Showcase.) Explain the **motivation** for making this change. What existing problem does the pull request solve? Prefer **small pull requests**. These are much easier to review and more likely to get merged. Make sure the PR does only one thing, otherwise please split it. **Test plan (required)** Demonstrate the code is solid. Example: The exact commands you ran and their output, screenshots / videos if the pull request changes UI. Make sure tests pass on both Travis and Circle CI. **Code formatting** Look around. Match the style of the rest of the codebase. See also the simple [style guide](https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md#style-guide). For more info, see the ["Pull Requests" section of our "Contributing" guidelines](https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md#pull-requests).