Rich Display Hello World
About This Space
A Hello World app with both dynamic output and input fields
Last updated on April 28, 2020
Public Permissions: View Open/Fork Run Comment
Rich Display Hello World Template
This template illustrates the basics of Rich Display screens. The starting Node.js file for this application is app.js. To review or change this, right-click the file and in the tree and select Properties.
You can run the application from the Launch menu.
Statefulness
This app uses a stateful top-down paradigm, meaning that when a screen is displayed, the Node.js code is paused to wait for the user's input.
Visual Designer
The interface was built using the Visual Designer and stored in a Rich Display file named app.json. When you open the json file in the Visual Designer, you can click around to select various widgets and view properties assigned to those widgets.
Field Binding
In the Visual Designer, certain widget properties are directly bound to fields that are exposed to Node.js code.
For example:
- yourName is a character field bound to the 'value' property of the textbox
- submit is a boolean field bound to the 'response' property of the Submit Answer button
- exit is a boolean field bound to the 'response' property of the Exit button
Layouts
Layouts are widgets that can host other widgets. This example uses a Panel Layout widget. The layout is centered on the page. This is accomplished by right-clicking the layout and selecting the Center Horizontally and Center Vertically options.
API
- pjs.defineDisplay() - Create a Rich Display object from json definition
- display.screen.execute() - Display a screen and wait for user to respond
- display.messageBox() - Display a message box
More Spaces By Al3 (@al3)
This workspace implements Amazon Web Services Rekognition. The application uses your device camera to take your photo, determine how old you look, and tell you all about it using human speech though the speakers on your device.
15833
1
1
This workspace implements Amazon Web Services Rekognition. The application uses your device camera to take a photo, analyze objects in the picture, and tell you all about it using human speech though the speakers on your device.
12889
1
0
This workspace implements Amazon Web Services Rekognition. The application uses your device camera to take a photo, analyze objects in the picture, and tell you all about it using human speech though the speakers on your device.
13109
0
0
This space creates an AWS S3 Bucket Browser using AWS SDK APIs. It allows you to create and delete buckets, list objects in a bucket, and Upload, download, preview or delete objects.
24030
1
1
This space creates an AWS S3 Bucket Browser using AWS SDK APIs. It allows you to create and delete buckets, list objects in a bucket, and Upload, download, preview or delete objects. This space is protected to protect the credentials being used for the example. To see the code or create a version to browse your own S3 buckets see http://noderun.com/al3/aws-s3-bucket-browser/
16745
1
1
19750
0
3
13709
0
0
Be the first to comment:
Comments