Include a react-geo component
Now that we have react-geo
installed, we can use it's components in the
my-app application. For demonstration purposes we'll now
add a simple button
to the application.
Please open a text editor (if not already done) and open the file App.js
from
the src
directory of your my-app application. Now import the
SimpleButton
class with the following statement:
import {
SimpleButton
} from '@terrestris/react-geo';
The style definitions of react-geo
and antd
need to be imported as well:
import 'antd/dist/antd.min.css';
import './react-geo.css';
If the react-geo.css
file is not yet located in the src
directory please
paste it from here.
info Please note that we are importing css files with the ES6
import
here. This needs a properly configured css-loader.create-react-app
includes this.
Now make use of the imported class by integrating it to the render
method inside the App
div (e.g. within the <p>
-element):
<SimpleButton>
Hello world!
</SimpleButton>
Save the file, open the application in your browser. You should see the changes directly, otherwise reopen http://localhost:3000. A blue button labelled with the text Hello world will be rendered.
Congratulations! You just created a complete React application including your first
react-geo
component with a few commands! We will now enhance the button to alert
once it has been clicked by implementing a onClick
callback function:
<SimpleButton
onClick={() => {alert('Hello World!');}}
>
Hello world!
</SimpleButton>
Save the changes and test the results by clicking on the button. You should now see a simple alert message with a Hello World! message.
We can also replace the text of the button with an icon. Simply remove the Hello world text and add the icon
property with the value "bars"
to the component.
<SimpleButton
onClick={() => {alert('Hello World!');}}
iconName="bars"
/>
Voilá! You added a nice menu button to your app!
Your final solution should look like the following snippet:
import React from 'react';
import logo from './logo.svg';
import './App.css';
import 'antd/dist/antd.min.css';
import './react-geo.css';
import {
SimpleButton
} from '@terrestris/react-geo';
function App() {
return (
<div className="App">
<header className="App-header">
<img src={logo} className="App-logo" alt="logo" />
<p>
Edit <code>src/App.js</code> and save to reload.
</p>
<SimpleButton
onClick={() => {alert('Hello World!');}}
iconName="bars"
/>
</header>
</div>
);
}
export default App;