Book Image

React Native By Example

By : Richard Kho
Book Image

React Native By Example

By: Richard Kho

Overview of this book

React Native's ability to build performant mobile applications with JavaScript has resulted in its popularity amongst developers. Developers now have the luxury to create incredible mobile experiences that look and feel native to their platforms with the comfort of a well-known language and the popular React.js library. This book will show you how to build your own native mobile applications for the iOS and Android platforms while leveraging the finesse and simplicity of JavaScript and React. Throughout the book you will build three projects, each of increasing complexity. You will also link up with the third-party Facebook SDK, convert an app to support the Redux architecture, and learn the process involved in making your apps available for sale on the iOS App Store and Google Play. At the end of this book, you will have learned and implemented a wide breadth of core APIs and components found in the React Native framework that are necessary in creating great mobile experiences.
Table of Contents (17 chapters)
Title Page
About the Author
About the Reviewer
Customer Feedback

The previous month's expenses

The next step that we want to carry out is to create a view that shows us the expenses for each month and then allows the user to enter that view by tapping on one of these months. This view should be navigated to when the user long presses on a month in the PreviousMonthsList component.

Thankfully, we already have a component that can handle this for us. In the last chapter, we built the CurrentMonthExpenses component that renders the expenses for a given month.

So far in our app, CurrentMonthExpenses is being rendered in just one place--App.js. The container that it renders within has a top margin offset to accommodate the navigation bar.

If we want to reuse the CurrentMonthExpenses component to render any month's expenses, we should build some logic to selectively include a top margin offset equal to the navigation bar's height if the component is being navigated to by PreviousMonthsList.

This can be achieved by having CurrentMonthExpenses accept an optional...