Radial Selection

Does the MIT App Inventor have the ability to have a Radial Button selection?

Example?

The sample would be.

Select

  • Celsius
  • Fahrenheit

The coversion depends on which on the choose.

Like a Spinner?

If the selection is just between two options you can use the ready made "switch" user interface,like:
image
Alternatively you can use a Canvas in which to design a Sprite (with a dial button as a background image, for example). By rotating the Sprite a certain amount of degrees (Left or Right) you can implement a selector. Obviously the Switch block is much easier.

How about a pie chart, with selectable data points?

1 Like

You're probably referring to the Radio Button. AppInventor doesn't have such a component, but you can use a similar one, CheckBox.

Screenshot_2025-11-19-21-06-09-250_com.android.chrome

And then add some logic.

You can also create images representing radio buttons and set them as the background of a regular button. When clicked, the image changes to "selected."

You can use radio buttons in a Tableviewer, if you can use extensions:

Thank you all for your help. You gave me some things to try, and I will give each one a go.

Thank you again!