Countdown slider

Juan_Antonio · June 20, 2021, 8:02pm

Until now, the Slider is always divided into 100 positions, this produces those jumps.

We hope this changes in future updates.

github.com/mit-cml/appinventor-sources

High fidelity slider

opened 04:17PM - 15 Mar 21 UTC

ewpatton

enhancement status: needs discussion feature request affects: ucr

**Describe the desired feature** The Slider component maps the min/max valu…es into the range 0-100, so if you have a range that does not easily map into that range the values reported can be off. For example, if you have min/max of 0, 200, the slider will only report values in steps of 2. The proposal would be for a new property on the Slider to control whether the values are mapped into 0, 100 or not. **Give an example of how this feature would be used** Consider a slider for picking an angle between 0...359. Each step on the slider will be roughly 3.59, but if you wanted to pick 60 degrees, for example, you couldn't. **Why doesn't the current App Inventor system address this use case?** The App Inventor system causes the problem by its design. This would give more flexibility to people that need it. **Why is this feature beneficial to App Inventor's educational mission?** Users may be surprised when they get values that make no sense due to the internal mapping that the Slider creates. This would make it easier for beginners/students to make use of this component.

Try this code

Instead of using Slider, you can use Canvas like in this example from @TIMAI2