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An iOS Filter UIControl Subclass. Zero Graphics. Highly Customizable.
Objective-C Ruby
branch: master

Merge pull request #7 from jghazarian/iosupdate

Update to compile for ios 7 without warnings thanks to @jghazarian
latest commit 9f232c4664
@ShadyElyaski authored

iOS Filter Control

An iOS Filter UIControl Subclass. Zero Graphics. Highly Customizable.

Inspired by National Geographics: Park Guides.


  1. In your XCode Project, take the SEFilterControl.h and .m & SEFilterKnob.h and .m from ios-filter-control folder and drag them into your project.
  2. Start using this new UIControl Subclass!

SDK Support

It supports iOS 4 to iOS 6


Here's a screenshot for different variations

My image

You may watch a demo video on Youtube


The class is not very well documented. I tried documenting drawing code as much as I could.

There are sample codes that illustrate various parameters.


Creating your filter

Somewhere, for example in your viewDidLoad, alloc and init the filter UIControl:

SEFilterControl *filter = [[SEFilterControl alloc]initWithFrame:CGRectMake(10, 20, 300, 70) Titles:[NSArray arrayWithObjects:@"Articles", @"News", @"Updates", @"Featured", @"Newest", @"Oldest", nil]];

This initializes our Filter Control using CGRect and Titles Array of NSStrings.

Note That height of the control is predifined as 70 and can't be changed

Then, add target for Value Change Event handling:

[filter addTarget:self action:@selector(filterValueChanged:) forControlEvents:UIControlEventValueChanged];

Don't forget to impelment the handler we specified later:

-(void)filterValueChanged:(SEFilterControl *) sender{
    NSLog(@"%@", [NSString stringWithFormat:@"%d", sender.SelectedIndex]);

Adding to your UIView & releasing the object:

[self.view addSubview:filter];
[filter release];

Customizing your filter

To change the track color:

[filter setProgressColor:[UIColor lightGrayColor]];

To change the handler color:

[filter setHandlerColor:[UIColor darkGrayColor]];

To change the Titles text color:

[filter setTitlesColor:[UIColor blackColor]];

To change the Titles text font:

[filter setTitlesFont:[UIFont fontWithName:@"Didot" size:14]];


Special thanks to mash, Ltd. team for their support.


This Code is released under the MIT License by Shady Elyaski

Would love to hear from you when you use this custom UIControl in your project!


Shady A. Elyaski

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