iOS 11 Control Center Slider

Im not sure whats happing but, I use Cocoa Pods quite frequently so I know it's not a noob issue, but I can't get the CocoaPod to install, but as soon as I remove SectionedSlider, it works fine. Any ideas? Running Xcode 8.3.3 and updated my CocoaPod installation too.

When I try to have more than 10 sections (for example 20) and try to select 16 (selectedSection: 16, sections: 20) on slider initialization, I was not able to see the 16 selected sections. After looking at the code, I realized that because on initialization, the selectedSection variable is updated before the sections variable, my change on sections value does not take place and thus selectedSection is capped to 10.

Solution: if you swap the place of initializing sections and selectedSection, everything should work. For reference, swap line 490 with line 491. The problem comes from didSet on line 440.

I don't mind forking the repo and using my own version of the slider, but I really want to benefit from future updates since this is one great project which is made amazingly well. Congratulations :) I would be thankful if you made this simple fix.

I have the slider in a tableviewcell and need to set the selectedSection each time cellForRowAtIndexPath is called. The property however is not accessible.

I Installed using pods on Objective-C Project. The SectionedSliderDelegate not founded in <SectionedSlider/SectionedSlider-Swift.h>

After that I removed from pods list and added manually to the project and the result was same. in myproject-Swift.h:

SWIFT_CLASS("_TtC11gogoMessage15SectionedSlider")
@interface SectionedSlider : UIView
@property (nonatomic, strong) UIColor * _Nullable viewBackgroundColor;
@property (nonatomic, strong) UIColor * _Nullable sliderBackgroundColor;
@property (nonatomic, strong) UIColor * _Nullable sliderColor;
@property (nonatomic) NSInteger sections;
@property (nonatomic) NSInteger selectedSection;
SWIFT_CLASS_PROPERTY(@property (nonatomic, class, readonly) Class _Nonnull layerClass;)
+ (Class _Nonnull)layerClass SWIFT_WARN_UNUSED_RESULT;
- (nonnull instancetype)initWithFrame:(CGRect)frame OBJC_DESIGNATED_INITIALIZER;
- (nullable instancetype)initWithCoder:(NSCoder * _Nonnull)aDecoder OBJC_DESIGNATED_INITIALIZER;
- (void)awakeFromNib;
- (void)drawLayer:(CALayer * _Nonnull)layer inContext:(CGContextRef _Nonnull)ctx;
- (void)draw;
- (void)needsDisplay;
- (void)touchesBegan:(NSSet<UITouch *> * _Nonnull)touches withEvent:(UIEvent * _Nullable)event;
- (void)touchesMoved:(NSSet<UITouch *> * _Nonnull)touches withEvent:(UIEvent * _Nullable)event;
@end


SWIFT_CLASS("_TtC11gogoMessage20SectionedSliderLayer")
@interface SectionedSliderLayer : CALayer
@property (nonatomic) CGFloat factor;
- (nonnull instancetype)init OBJC_DESIGNATED_INITIALIZER;
- (nonnull instancetype)initWithLayer:(id _Nonnull)layer OBJC_DESIGNATED_INITIALIZER;
- (nullable instancetype)initWithCoder:(NSCoder * _Nonnull)aDecoder OBJC_DESIGNATED_INITIALIZER;
@end


SWIFT_CLASS("_TtC11gogoMessage8StyleKit")
@interface StyleKit : NSObject
- (nonnull instancetype)init OBJC_DESIGNATED_INITIALIZER;
@end

typedef SWIFT_ENUM_NAMED(NSInteger, SectionedSliderResizingBehavior, "ResizingBehavior") {
  SectionedSliderResizingBehaviorAspectFit = 0,
/// The content is proportionally resized to fit into the target rectangle.
  SectionedSliderResizingBehaviorAspectFill = 1,
/// The content is proportionally resized to completely fill the target rectangle.
  SectionedSliderResizingBehaviorStretch = 2,
/// The content is stretched to match the entire target rectangle.
  SectionedSliderResizingBehaviorCenter = 3,
};

As you see there is no property named delegate. I don't know why it wasn't Imported Any Idea?

Is possible to make secttion separator invisible. In iOS control center there is similar slider and this one is nice example of apples one. However it would be nice that section separators can be clear color and invisible. Any code sample for this trick? Thanks

Variables sections and selectedSection were made open so it's possible to actually programmatically change the value rather than just listen to changes via the delegate function. Without this, the only way to really change it is to recreate the entire SectionedSlider.

TouchedMoved were swapped out for pan gestures so the gesture recognizers could operate with that of a scrollView. Otherwise, the pan gesture of the scrollView would activate when you're trying to use the Sectioned Slider. Note that this was only tested via Storyboards (aka using awakeFromNib), I haven't tested it via programmatic creation init(frame: CGRect, selectedSection: Int, sections: Int, palette: Palette = Palette())

Hey! Thanks for this great control.

Just came across a small bug, looks like observers don't run in the initializer for swift which causes a first delegate call with 0.0 (Factor's default value) instead of the value you can put in the initializer for selected section.

Let me know what you think 👍

Section Changed Delegate should not be called when setting the selectedSection. This is the default pattern in all the iOS controls. Check UISegmentControl.

Hey,

I've separated the content to 4 commits:

1. Upgrade Swift 3.0 -> 4.2
2. Upgrade Swift 4.2 -> 5.0
3. Change the Example project to have a navigation controller leading to the view controller, so it's easy to show the leak
4. Fix the leak

To reproduce:

• Go to the 3rd commit and run the example
• Enter the slider VC, then back out, repeat a couple of times
• Use Xcode's "Debug Memory Graph"

You'll see that there are multiple ViewControllers up, rather than one:

The 4th commit fixes this. More info on delegates and retains cycles here.

Hope you can approve this PR and update the Pod!

Hey, I love that someone came out with this.

I was wondering if you plan on, or could add an option to use it in Landscape rather than in Portrait only.