Slider

Slider

The MDCSlider object is a Material Design control used to select a value from a continuous range or discrete set of values.

Design & API Documentation

• Material Design guidelines: Sliders
• API: MDCSlider

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Installation

Requirements

• Xcode 7.0 or higher.
• iOS SDK version 7.0 or higher.

Installation with CocoaPods

To add this component to your Xcode project using CocoaPods, add the following to your Podfile:

pod 'MaterialComponents/Slider'

Then, run the following command:

pod install

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Usage

Importing

Before using Slider, you'll need to import it:

Swift

import MaterialComponents.MaterialSlider

Objective-C

#import "MaterialSlider.h"

Standard usage

MDCSlider can be be used like a standard UIControl.

Swift

override func viewDidLoad() {
  super.viewDidLoad()

  let slider = MDCSlider(frame: CGRect(x: 50, y: 50, width: 100, height: 27))
  slider.addTarget(self,
                   action: #selector(didChangeSliderValue(senderSlider:)),
                   for: .valueChanged)
  view.addSubview(slider)
}

func didChangeSliderValue(senderSlider:MDCSlider) {
  print("Did change slider value to: %@", senderSlider.value)
}

Objective C

- (void)viewDidLoad {
  MDCSlider *slider = [[MDCSlider alloc] initWithFrame:CGRectMake(50, 50, 100, 27)];
  [slider addTarget:self
                action:@selector(didChangeSliderValue:)
      forControlEvents:UIControlEventValueChanged];
  [self.view addSubview:slider];
}

- (void)didChangeSliderValue:(MDCSlider *)slider {
  NSLog(@"did change %@ value: %f", NSStringFromClass([slider class]), slider.value);
}

The differences between the UISlider class and the MDCSlider class:

Does not have api to:

• set right and left icons
• set the thumb image
• set the right and left track images (for a custom track)
• set the right (background track) color

Same features:

• set color for thumb via @c thumbColor
• set color of track via @c trackColor

New features:

• making the slider a snap to discrete values via property numberOfDiscreteValues