PWSwitch

Custom UISwitch implementation designed for those who want more control over the looks of the component. Built with CALayer and CAAnimation for finer control and nice interaction visual effects.

• Supports Autolayout
• Supports Storyboard (@IBDesignable, @IBInspectable)
• Can be easily added and configured programmatically
• Global customization with UIAppearance
• Supports standard UISwitch setOn method and ValueChanged control event
• Replicates standard UISwitch visual feedback animations

1.1 version breaking changes

• Renamed trackOnFillColor to trackOnBorderColor and added real trackOnFillColor property which works only if shouldFillOnPush is set to false. To restore previous behavior rename trackOnFillColor to trackOnBorderColor in your project everywhere you use it and then set new trackOnFillColor to clear. (should be by default)
• Added thumbOffPushBorderColor. If you have changed default thumbOffBorderColor then you probably need to adjust thumbOffPushBorderColor now also.

Usage

Simply add PWSwitch init with non-zero rect to your view. 50x26 is the default size, changing it may require adjusting thumbDiameter property

let pwSwitch = PWSwitch(frame: CGRect(x: 0, y: 0, width: 50, height: 26))
view.addSubview(pwSwitch)

Alternatively you can use storyboard and/or autolayout to add PWSwitch to your view.

PWSwitch supports standard UISwitch setOn(on: Bool, animated :Bool) method to change state of PWSwitch from code, add sends UIControlEvents.ValueChanged event when state changes. Current state of the control can be obtained with the on property.

pwSwitch.setOn(true, animated: true)
pwSwitch.addTarget(self, action: #selector(self.onSwitchChanged), forControlEvents: .ValueChanged)
if pwSwitch.on {
    //do something is switch is on
}

PWSwitch has a wide number of properties to customize it's appearance. All properties can be set globally with the UIAppearance proxy: PWSwitch.appearance(), or directly in code or Interface Builder attribute inspector. Global values set with the UIAppearance can be overriden for specific instance by changing their property values directly.

• trackOffBorderColor - track border color when state is Off
• trackOffPushBorderColor - track border color when switch is pressed (touch began, but not ended). Border width is animated and fills inside of the track completely if shouldFillOnPush is true
• trackOffFillColor - track fill color when state is Off
• thumbOffBorderColor - thumb border color when state is Off
• thumbOffPushBorderColor - thumb border color when switch is pressed (touch began, but not ended). Set to the same value as thumbOffBorderColor if border color animation is not desireable
• thumbOffFillColor - thumb fill color when state is Off
• trackBorderFillColor - track border color when state is On. If shouldFillOnPush is true then border completely fills track
• trackOnFillColor - track fill color when state is On
• thumbOnBorderColor - thumb border color when state is On
• thumbOnFillColor - thumb fill color when state is On
• thumbDiameter - diameter of thumb in pixels
• cornerRadius - track corner radius
• thumbCornerRadius - thumb corner radius
• shouldFillOnPush - track border width is animated and fills inside of the track completely when switch is pressed if true
• trackInset - track inset from the outer control frame. Usable if thumb is bigger than track
• thumbShadowColor - thumb shadow color. Alpha value can be used to change shadow opacity
• shadowStrength - overall strength of thumb shadow
• thumbDelta - how much thumb grows when touhes begin. Setting to 0 will disable thumb growing/shrinking

Issues

Values set with the PWSwitch.appearance() override @IBInspectable values set it the Interface Builder attributes inspector.

Example

To run the example project, clone the repo, and run pod install from the Example directory first.

Requirements

• iOS 8.3+
• Xcode 8.0+
• Swift 3.0+

Please use release 1.0.0 for the final Swift 2.x supported version.

Installation

PWSwitch is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod "PWSwitch"

Author

Nikita Shanin, shaninnik@gmail.com

License

PWSwitch is available under the MIT license. See the LICENSE file for more info.