Partial modal view controller class for iOS.
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We have all been in situations where designers think an app should behave as a website does. Especially, when you see designs with a bunch of modals. BGPartialModals to the rescue! BGPartialModals makes presenting web-like modals easy for iOS.

Get Started

Download the files and run the demo app and check out the source code. Check out the docs.


  • iOS 4.3+
  • QuartzCore.framework
  • ARC

Quick Start (TL;DR)

  1. Link against the QuartzCore.framework
  2. Add the BGPartialModal source folder to your project. Make sure you have Copy items into destination group's folder checked. Also, check your target in the Add to targets view.
  3. Create a new Objective-C class and make it a subclass of BGPartialModalViewController. Make sure the With XIB for user interface is checked.
  4. In the XIB file do the following:
    1. Drag and drop a new UIView into your main view.
    2. Reference it to the modalView outlet.
    3. Customize your modal view however you like.
  5. Do the following in the view controller where you will present the modal:
    1. Open the view controller's header file and add:
      • #import "BGPartialModalFadeTransition.h" (replace with a transition of your choice).
      • Don't forget to import your modal view controller.
    2. Open the view controller's main file and add something similar to the following lines of code in your action method:
      // initialize modal view controller
      MyModalViewController *myModalController = [[MyModalViewController alloc] initWithNibName:@"MyModalViewController" bundle:nil];
      myModalController.enableOverlayClose = YES;
      // present modal
      [self presentViewController:myModalController
                     overlayColor:[UIColor colorWithRed:0 green:0 blue:0 alpha:0.75f] // overlay color with alpha
                    animationType:[BGPartialModalFadeTransition class] // animation type
                           // some completion stuff here
    3. Create an action to launch your modal, compile and run!

Available Transitions

  • BGPartialModalTransition: This is the father of all transitions. Feel free to subclass it to create your own awesome transitions.
  • BGPartialModalFadeTransition: A simple fade transition.

More transitions are needed! Feel free to contribute or suggest any code.


  • Add more transitions
  • Add nice UI, and cool demo
  • Create an iPad demo
  • Write better documentaion
  • Create visual tutorial, maybe a video