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

Displaying the current month's expenses

The next feature we wrote about earlier in this chapter was that if the expense is saved, it should then be rendered in a list on the main screen that contains the button to add further expenses.

In this section, we will create that list. We should create a component called CurrentMonthExpenses and make modifications to the existing files to support it.

You should add a new function to storageMethods that accepts a month and year, returning the budget, list of expenses, and the amount spent for that month and year.

The CurrentMonthExpenses component should do the following things:

  • Render a header that shows the current month's name and budget.
  • Display a ListView of the month's expenses, retrieved from AsyncStorage, with some styling and formatting. At the very least, it should include the description of the expense as well as the dollar amount.
    • The ListView being rendered should be its own component so that we can reuse it in the next chapter for the prior...