Hi -
The Ai provided this...
Creating a minimal Apache Royale app with multiple screens is a good way to get
familiar with how to structure an app with multiple views or screens. Here's a
simple guide to get you started with Apache Royale, showing how to create an
app with multiple screens.
Step-by-Step Guide
1. Set up Apache Royale
If you haven't set up Apache Royale yet, follow these steps:
Download and set up Apache Royale from here.
Make sure you have Apache Flex SDK set up if you’re using it, as Royale is
built on top of it.
Install Node.js, as Apache Royale uses it for building apps.
You can start a Royale project using the following command:
mxmlc --output=app.swf main.mxml
Or if you're using an IDE like IntelliJ IDEA or Visual Studio Code, you can
directly create a new Royale project through the IDE.
2. Create a Basic Application with Multiple Screens
Let's break down how you can create multiple screens in a Royale application.
We will create two screens: HomeScreen and AboutScreen.
Project Structure:
/src
/main.mxml
/HomeScreen.mxml
/AboutScreen.mxml
Step 1: Create the HomeScreen.mxml
This is the first screen that will be shown when the app starts.
<?xml version="1.0" encoding="utf-8"?>
<fx:Application xmlns:fx="http://ns.adobe.com/mxml/2009";
xmlns:s="library://ns.adobe.com/flex/spark" applicationComplete="initApp()">
<fx:Script>
<![CDATA[
import mx.events.FlexEvent;
private function initApp():void {
navigateToAboutScreenButton.addEventListener(MouseEvent.CLICK,
navigateToAboutScreen);
}
private function navigateToAboutScreen(event:MouseEvent):void {
this.currentState = 'aboutScreen';
}
]]>
</fx:Script>
<fx:States>
<fx:State name="homeScreen"/>
<fx:State name="aboutScreen"/>
</fx:States>
<s:Group id="homeScreenGroup">
<s:Label text="Welcome to the Home Screen!" width="100%" height="100%"
textAlign="center" verticalAlign="middle"/>
<s:Button label="Go to About Screen" id="navigateToAboutScreenButton"
horizontalCenter="0" verticalCenter="50"/>
</s:Group>
<s:Group id="aboutScreenGroup" includeIn="aboutScreen">
<s:Label text="This is the About Screen" width="100%" height="100%"
textAlign="center" verticalAlign="middle"/>
</s:Group>
</fx:Application>
Step 2: Create the AboutScreen.mxml
This is the second screen, which will show when the user navigates to it.
<?xml version="1.0" encoding="utf-8"?>
<fx:Application xmlns:fx="http://ns.adobe.com/mxml/2009";
xmlns:s="library://ns.adobe.com/flex/spark">
<s:Label text="This is the About Screen" width="100%" height="100%"
textAlign="center" verticalAlign="middle"/>
</fx:Application>
3. Main Application Logic
Now we’ll set up a main application to manage navigation between screens.
main.mxml
<?xml version="1.0" encoding="utf-8"?>
<fx:Application xmlns:fx="http://ns.adobe.com/mxml/2009";
xmlns:s="library://ns.adobe.com/flex/spark" applicationComplete="initApp()">
<fx:Script>
<![CDATA[
import mx.events.FlexEvent;
private function initApp():void {
currentState = 'homeScreen';
}
]]>
</fx:Script>
<fx:States>
<fx:State name="homeScreen"/>
<fx:State name="aboutScreen"/>
</fx:States>
<s:Group id="homeScreenGroup" includeIn="homeScreen">
<s:Label text="Welcome to the Home Screen!" width="100%" height="100%"
textAlign="center" verticalAlign="middle"/>
<s:Button label="Go to About Screen" horizontalCenter="0"
verticalCenter="50" click="currentState='aboutScreen'"/>
</s:Group>
<s:Group id="aboutScreenGroup" includeIn="aboutScreen">
<s:Label text="This is the About Screen" width="100%" height="100%"
textAlign="center" verticalAlign="middle"/>
<s:Button label="Back to Home" horizontalCenter="0" verticalCenter="50"
click="currentState='homeScreen'"/>
</s:Group>
</fx:Application>
Explanation:
States: Apache Royale uses fx:State elements to manage different views or
screens. Here we have two states: homeScreen and aboutScreen.
Components: The s:Group elements are used to display the content of each
screen. We use includeIn to manage which group is visible based on the current
state.
Navigation: Clicking a button changes the currentState, which in turn
toggles the visibility of the appropriate screen. When the button on the home
screen is clicked, it navigates to the about screen, and vice versa.
I will give it a whirl
thanks
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