There is a point where you will have multiple files and folder in your project. And we need to get the reference of one file from another in any random possibilities. If we are following the relative path such as
import themes from '../../config/themes';
then it’s really very hard for us to get an idea where it takes by the symbol ‘../ ‘ and in more complex project this is a night mare.
In this post we will find the possible solution and alternative on this type of scenario. Let’s take an example project with following folder structure.
Your App Root Directory
| |-- login
| | |-- login.js
| |-- icon
| | |-- userupload.png
Valid style props
Component Placement and Visibility
React enables to create components by invoking the React.createClass() method which expects a render method and triggers a lifecycle that can be hooked into via a number of so called lifecycle methods.
This short article should shed light into all the applicable functions.
Understanding the component lifecycle will enable you to perform certain actions when a component is created or destroyed. Further more it gives you the opportunity to decide if a component should be updated in the first place and to react to props or state changes accordingly.
Debugging in simulator
Now we have developed the iOS application with react native, it’s time to know how to debug iOS application application. Inside the project directory you will see
react native useful component
hide or show react native`s component
Context is similar to props in react , the only difference is that context lets you pass some data through all nodes in component tree. But at the time of writing this post this feature is still in development phase and its api may change in next version of react. Let’s explain the concept of context this with following diagram.
After building your component, you may find yourself wanting to “reach out” and invoke methods on component instances returned from
render(). This can be achieve from refs in react based project. Refs are a great way to send a message to a particular child instance in a way that would be inconvenient to do via streaming Reactive
refs can be as string attribute or callback method. Here’s how we can use it in both cases.
Install node.js package in package.json
> npm install