Slider

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A slider is a horizontal track with a control called a thumb, which you can slide with your finger to move between a minimum and maximum value, such as screen brightness level or position during media playback. As a slider’s value changes, the portion of track between the minimum value and the thumb fills with color. A slider can optionally display left and right icons that illustrate the meaning of the minimum and maximum values.

Best practices

• Customize a slider’s appearance if it adds value. A slider’s appearance, including track color, thumb image, and left and right icons, can be adjusted to blend with your app’s design and to communicate intent. A slider that adjusts image size, for example, could show a small image icon on the left and a large image icon on the right.

How to use

1. Drop a Slider control from the object panel to a Window
2. Use the Slider Inspector to customize its properties

If you need to write code for Slider:

3. Open the Code Editor (cmd + 6)
4. Select the Changed item inside the Events area and write your custom code in the Code Editor

The inspector where the Slider class can be configured.

Example

1. Open the Code Editor (cmd + 6)
2. Select the Changed item inside the Events area and write your custom code in the Code Editor

   Console.write("Slider value: \(self.value)")

Most important properties

Several UI aspects can be configured in the Slider class but the values related properties are the most commons to be configured.

• Value: The slider’s current value.
• Maximum: The maximum value of the slider.
• Minimum: The minimum value of the slider.

References

Slider class reference contains a complete list of properties and methods that can be used to customize a Slider object.