update readme.add pod spec

EmbeddedSwapping.podspec

@@ -0,0 +1,37 @@
+Pod::Spec.new do |s|
+  s.name         = "EmbeddedSwapping"
+  s.version      = "1.0"
+  s.summary      = "Container view controller which manage multiple child view controllers using storyboards"
+  s.homepage     = "https://github.com/mkutgt72/EmbeddedSwapping"
+  s.license      = {
+    :type => 'MIT',
+    :text => <<-LICENSE
+    Copyright (c) 2012 Michael Luton
+
+    Permission is hereby granted, free of charge, to any person obtaining
+    a copy of this software and associated documentation files (the
+    "Software"), to deal in the Software without restriction, including
+    without limitation the rights to use, copy, modify, merge, publish,
+    distribute, sublicense, and/or sell copies of the Software, and to
+    permit persons to whom the Software is furnished to do so, subject to
+    the following conditions:
+
+    The above copyright notice and this permission notice shall be
+    included in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+    LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+    OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+    WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+    LICENSE
+   }
+   s.author       = { "Michael Luton" => "https://github.com/mluton" }
+   s.source       = { :git => "https://github.com/mkutgt72/EmbeddedSwapping.git", :tag => "1.0" }
+   s.source_files = ['EmptySegue.{h,m}',
+   'ContainerViewController.{h,m}']
+    s.ios.deployment_target = '5.0'
+    s.requires_arc = true
+  end

EmbeddedSwapping/ViewController.m

@@ -15,6 +15,7 @@
 static NSString* const secondControllerSegueIdentifier = @"embedSecond";
 
 @interface ViewController ()
+
 @property (nonatomic, weak) ContainerViewController *containerViewController;
 
 - (IBAction)swapButtonPressed:(id)sender;

README.md

@@ -1,52 +1,50 @@
-Demonstration of how to make a custom container view controller manage multiple child view controllers using storyboards. This solution is heavily based on [Peregrin Planet's Container View Controllers in the Storyboard](http://orderoo.wordpress.com/2012/02/23/container-view-controllers-in-the-storyboard/).
+Demonstration of how to make a custom container view controller manage multiple child view controllers using storyboards. This idea based on [mluton/EmbeddedSwapping](https://github.com/mluton/EmbeddedSwapping) code.
 
 The child view controllers are connected to their container with a custom segue. The custom segue doesn't do anything but exists for the purpose of connecting things together in the storyboard. The custom container view controller manages the child view controllers in `prepareForSegue:sender`.
 
+Usage example with custom animation:
+
 ```objective-c
-- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
-{
-    if (([segue.identifier isEqualToString:SegueIdentifierFirst]) && !self.firstViewController) {
-        self.firstViewController = segue.destinationViewController;
-    }
+#import "ViewController.h"
+#import "ContainerViewController.h"
+#import "FirstViewController.h"
+#import "SecondViewController.h"
 
-    if (([segue.identifier isEqualToString:SegueIdentifierSecond]) && !self.secondViewController) {
-        self.secondViewController = segue.destinationViewController;
-    }
+static NSString* const firstControllerSegueIdentifier = @"embedFirst";
+static NSString* const secondControllerSegueIdentifier = @"embedSecond";
 
-    if ([segue.identifier isEqualToString:SegueIdentifierFirst]) {
-        if (self.childViewControllers.count > 0) {
-            [self swapFromViewController:[self.childViewControllers objectAtIndex:0] toViewController:self.firstViewController];
-        }
-        else {
-            [self addChildViewController:segue.destinationViewController];
-            UIView* destView = ((UIViewController *)segue.destinationViewController).view;
-            destView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
-            destView.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);
-            [self.view addSubview:destView];
-            [segue.destinationViewController didMoveToParentViewController:self];
-        }
-    }
-    else if ([segue.identifier isEqualToString:SegueIdentifierSecond]) {
-        [self swapFromViewController:[self.childViewControllers objectAtIndex:0] toViewController:self.secondViewController];
-    }
-}
+@interface ViewController ()
+
+@property (nonatomic, weak) ContainerViewController *containerViewController;
+
+- (IBAction)swapButtonPressed:(id)sender;
 
-- (void)swapFromViewController:(UIViewController *)fromViewController toViewController:(UIViewController *)toViewController
-{
-    toViewController.view.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);
-    toViewController.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
+@end
 
-    [fromViewController willMoveToParentViewController:nil];
-    [self addChildViewController:toViewController];
+@implementation ViewController
 
-    [self transitionFromViewController:fromViewController toViewController:toViewController duration:1.0 options:UIViewAnimationOptionTransitionCrossDissolve animations:nil completion:^(BOOL finished) {
-        [fromViewController removeFromParentViewController];
-        [toViewController didMoveToParentViewController:self];
-        self.transitionInProgress = NO;
-    }];
+- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
+    if ([segue.identifier isEqualToString:@"embedContainer"]) {
+        self.containerViewController = segue.destinationViewController;
+
+        self.containerViewController.animationBlock = ^void(UIViewController* container, UIViewController* fromViewController, UIViewController* toViewController) {
+            [container transitionFromViewController:fromViewController toViewController:toViewController duration:1.0 options:UIViewAnimationOptionTransitionCrossDissolve animations:nil completion:^(BOOL finished) {
+                [fromViewController removeFromParentViewController];
+                [toViewController didMoveToParentViewController:self];
+            }];
+        };
+    }
 }
-```
 
-See the [blog post](http://sandmoose.com/post/35714028270/storyboards-with-custom-container-view-controllers) for a more detailed description. Download the full project for the complete solution. Comments, Feedback, Suggestions: [Michael Luton](mailto:[email protected])
+- (IBAction)swapButtonPressed:(id)sender {
+    if ([self.containerViewController.currentController isKindOfClass:[FirstViewController class]]) {
+        [self.containerViewController performSegueWithIdentifier:secondControllerSegueIdentifier sender:self];
+    } else {
+        [self.containerViewController performSegueWithIdentifier:firstControllerSegueIdentifier sender:self];
+    }
+}
+
+@end
+```
 
 MIT license.