macOS NSStepper class

[rethish]

How to use NSStepper? Give a simple example

 

[lee1210]

http://www.cocoadev.com/index.pl?NSStepperUnusable

There's an example here to download, plus a code snippet in the thread itself.

-Lee

 

[kainjow]

Well steppers first need a minimum and maximum value and a starting value:

[stepper setMinValue:0.0];
[stepper setMaxValue:100.0];
[steper setDoubleValue:50.0];

To know when the stepper value has changed, give it a target and action. This is usually done in Interface Builder. Then in the action method you can access the stepper's value like any other control (since it inherits from NSControl):

- (IBAction)stepperAction:(id)sender {
    [textField setDoubleValue:[stepper doubleValue]];
}