├── Demo ├── demo.gif ├── IPSqueezableViewController │ ├── en.lproj │ │ └── InfoPlist.strings │ ├── IPViewController.h │ ├── IPAppDelegate.h │ ├── main.m │ ├── IPSqueezableViewController-Prefix.pch │ ├── Images.xcassets │ │ ├── AppIcon.appiconset │ │ │ └── Contents.json │ │ └── LaunchImage.launchimage │ │ │ └── Contents.json │ ├── IPViewController.m │ ├── IPSqueezableViewController-Info.plist │ ├── IPAppDelegate.m │ └── Base.lproj │ │ └── Main.storyboard ├── demo-safari.gif ├── IPSqueezableViewControllerTests │ ├── en.lproj │ │ └── InfoPlist.strings │ ├── IPSqueezableViewControllerTests-Info.plist │ └── IPSqueezableViewControllerTests.m └── IPSqueezableViewController.xcodeproj │ ├── project.xcworkspace │ └── contents.xcworkspacedata │ └── project.pbxproj ├── Resources ├── backButton.png ├── backButton@2x.png ├── invisibleBackButton.png └── invisibleBackButton@2x.png ├── .gitignore ├── IPSqueezableViewController.podspec ├── LICENSE ├── Classes ├── IPNavBarSqueezableViewController.h └── IPNavBarSqueezableViewController.m └── README.md /Demo/demo.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/zetachang/IPSqueezableViewController/HEAD/Demo/demo.gif -------------------------------------------------------------------------------- /Demo/IPSqueezableViewController/en.lproj/InfoPlist.strings: -------------------------------------------------------------------------------- 1 | /* Localized versions of Info.plist keys */ 2 | 3 | -------------------------------------------------------------------------------- /Demo/demo-safari.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/zetachang/IPSqueezableViewController/HEAD/Demo/demo-safari.gif -------------------------------------------------------------------------------- /Demo/IPSqueezableViewControllerTests/en.lproj/InfoPlist.strings: -------------------------------------------------------------------------------- 1 | /* Localized versions of Info.plist keys */ 2 | 3 | -------------------------------------------------------------------------------- /Resources/backButton.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/zetachang/IPSqueezableViewController/HEAD/Resources/backButton.png -------------------------------------------------------------------------------- /Resources/backButton@2x.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/zetachang/IPSqueezableViewController/HEAD/Resources/backButton@2x.png -------------------------------------------------------------------------------- /Resources/invisibleBackButton.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/zetachang/IPSqueezableViewController/HEAD/Resources/invisibleBackButton.png -------------------------------------------------------------------------------- /Resources/invisibleBackButton@2x.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/zetachang/IPSqueezableViewController/HEAD/Resources/invisibleBackButton@2x.png -------------------------------------------------------------------------------- /Demo/IPSqueezableViewController.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /Demo/IPSqueezableViewController/IPViewController.h: -------------------------------------------------------------------------------- 1 | // 2 | // IPViewController.h 3 | // IPSqueezableViewController 4 | // 5 | // Created by zeta on 2014/5/15. 6 | // Copyright (c) 2014年 shotdoor. All rights reserved. 7 | // 8 | 9 | #import 10 | #import "IPNavBarSqueezableViewController.h" 11 | 12 | @interface IPViewController : IPNavBarSqueezableViewController 13 | 14 | @end 15 | -------------------------------------------------------------------------------- /Demo/IPSqueezableViewController/IPAppDelegate.h: -------------------------------------------------------------------------------- 1 | // 2 | // IPAppDelegate.h 3 | // IPSqueezableViewController 4 | // 5 | // Created by zeta on 2014/5/15. 6 | // Copyright (c) 2014年 shotdoor. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface IPAppDelegate : UIResponder 12 | 13 | @property (strong, nonatomic) UIWindow *window; 14 | 15 | @end 16 | -------------------------------------------------------------------------------- /Demo/IPSqueezableViewController/main.m: -------------------------------------------------------------------------------- 1 | // 2 | // main.m 3 | // IPSqueezableViewController 4 | // 5 | // Created by zeta on 2014/5/15. 6 | // Copyright (c) 2014年 shotdoor. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | #import "IPAppDelegate.h" 12 | 13 | int main(int argc, char * argv[]) 14 | { 15 | @autoreleasepool { 16 | return UIApplicationMain(argc, argv, nil, NSStringFromClass([IPAppDelegate class])); 17 | } 18 | } 19 | -------------------------------------------------------------------------------- /Demo/IPSqueezableViewController/IPSqueezableViewController-Prefix.pch: -------------------------------------------------------------------------------- 1 | // 2 | // Prefix header 3 | // 4 | // The contents of this file are implicitly included at the beginning of every source file. 5 | // 6 | 7 | #import 8 | 9 | #ifndef __IPHONE_5_0 10 | #warning "This project uses features only available in iOS SDK 5.0 and later." 11 | #endif 12 | 13 | #ifdef __OBJC__ 14 | #import 15 | #import 16 | #endif 17 | -------------------------------------------------------------------------------- /Demo/IPSqueezableViewController/Images.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "iphone", 5 | "size" : "29x29", 6 | "scale" : "2x" 7 | }, 8 | { 9 | "idiom" : "iphone", 10 | "size" : "40x40", 11 | "scale" : "2x" 12 | }, 13 | { 14 | "idiom" : "iphone", 15 | "size" : "60x60", 16 | "scale" : "2x" 17 | } 18 | ], 19 | "info" : { 20 | "version" : 1, 21 | "author" : "xcode" 22 | } 23 | } -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Xcode 2 | # 3 | build/ 4 | *.pbxuser 5 | !default.pbxuser 6 | *.mode1v3 7 | !default.mode1v3 8 | *.mode2v3 9 | !default.mode2v3 10 | *.perspectivev3 11 | !default.perspectivev3 12 | xcuserdata 13 | *.xccheckout 14 | *.moved-aside 15 | DerivedData 16 | *.hmap 17 | *.ipa 18 | *.xcuserstate 19 | 20 | # CocoaPods 21 | # 22 | # We recommend against adding the Pods directory to your .gitignore. However 23 | # you should judge for yourself, the pros and cons are mentioned at: 24 | # http://guides.cocoapods.org/using/using-cocoapods.html#should-i-ignore-the-pods-directory-in-source-control 25 | # 26 | # Pods/ -------------------------------------------------------------------------------- /Demo/IPSqueezableViewController/Images.xcassets/LaunchImage.launchimage/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "orientation" : "portrait", 5 | "idiom" : "iphone", 6 | "extent" : "full-screen", 7 | "minimum-system-version" : "7.0", 8 | "scale" : "2x" 9 | }, 10 | { 11 | "orientation" : "portrait", 12 | "idiom" : "iphone", 13 | "subtype" : "retina4", 14 | "extent" : "full-screen", 15 | "minimum-system-version" : "7.0", 16 | "scale" : "2x" 17 | } 18 | ], 19 | "info" : { 20 | "version" : 1, 21 | "author" : "xcode" 22 | } 23 | } -------------------------------------------------------------------------------- /Demo/IPSqueezableViewController/IPViewController.m: -------------------------------------------------------------------------------- 1 | // 2 | // IPViewController.m 3 | // IPSqueezableViewController 4 | // 5 | // Created by zeta on 2014/5/15. 6 | // Copyright (c) 2014年 shotdoor. All rights reserved. 7 | // 8 | 9 | #import "IPViewController.h" 10 | 11 | @interface IPViewController () 12 | @property (weak, nonatomic) IBOutlet UITextView *textView; 13 | 14 | @end 15 | 16 | @implementation IPViewController 17 | 18 | - (void)viewDidLoad 19 | { 20 | [super viewDidLoad]; 21 | self.title = @"A Long Long Long Story"; 22 | } 23 | 24 | - (void)didReceiveMemoryWarning 25 | { 26 | [super didReceiveMemoryWarning]; 27 | // Dispose of any resources that can be recreated. 28 | } 29 | 30 | @end 31 | -------------------------------------------------------------------------------- /Demo/IPSqueezableViewControllerTests/IPSqueezableViewControllerTests-Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | ${EXECUTABLE_NAME} 9 | CFBundleIdentifier 10 | com.shotdoor.${PRODUCT_NAME:rfc1034identifier} 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundlePackageType 14 | BNDL 15 | CFBundleShortVersionString 16 | 1.0 17 | CFBundleSignature 18 | ???? 19 | CFBundleVersion 20 | 1 21 | 22 | 23 | -------------------------------------------------------------------------------- /IPSqueezableViewController.podspec: -------------------------------------------------------------------------------- 1 | Pod::Spec.new do |s| 2 | s.name = "IPSqueezableViewController" 3 | s.version = "0.0.2" 4 | s.summary = "Condensing effect of navigation bar as the one in Safari.app " 5 | 6 | s.description = <<-DESC 7 | A condensing effect of navigation bar as we see in Safari.app. Support iOS 7. 8 | DESC 9 | 10 | s.homepage = "http://github.com/zetachang/IPSqueezableViewController" 11 | 12 | s.license = "MIT" 13 | 14 | s.author = "David Chang" 15 | s.social_media_url = "http://twitter.com/zetachang" 16 | 17 | s.platform = :ios, "7.0" 18 | 19 | s.source = { :git => "https://github.com/zetachang/IPSqueezableViewController.git", :tag => "#{s.version}" } 20 | 21 | s.source_files = "Classes" 22 | 23 | s.resources = "Resources/*.png" 24 | 25 | s.requires_arc = true 26 | end 27 | -------------------------------------------------------------------------------- /Demo/IPSqueezableViewControllerTests/IPSqueezableViewControllerTests.m: -------------------------------------------------------------------------------- 1 | // 2 | // IPSqueezableViewControllerTests.m 3 | // IPSqueezableViewControllerTests 4 | // 5 | // Created by zeta on 2014/5/15. 6 | // Copyright (c) 2014年 shotdoor. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface IPSqueezableViewControllerTests : XCTestCase 12 | 13 | @end 14 | 15 | @implementation IPSqueezableViewControllerTests 16 | 17 | - (void)setUp 18 | { 19 | [super setUp]; 20 | // Put setup code here. This method is called before the invocation of each test method in the class. 21 | } 22 | 23 | - (void)tearDown 24 | { 25 | // Put teardown code here. This method is called after the invocation of each test method in the class. 26 | [super tearDown]; 27 | } 28 | 29 | - (void)testExample 30 | { 31 | XCTFail(@"No implementation for \"%s\"", __PRETTY_FUNCTION__); 32 | } 33 | 34 | @end 35 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Copyright (c) 2014 Yi-Cheng Chang (http://github.com/zetachang) 2 | 3 | Permission is hereby granted, free of charge, to any person obtaining a copy 4 | of this software and associated documentation files (the "Software"), to deal 5 | in the Software without restriction, including without limitation the rights 6 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 7 | copies of the Software, and to permit persons to whom the Software is 8 | furnished to do so, subject to the following conditions: 9 | 10 | The above copyright notice and this permission notice shall be included in 11 | all copies or substantial portions of the Software. 12 | 13 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 16 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 18 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 19 | THE SOFTWARE. -------------------------------------------------------------------------------- /Classes/IPNavBarSqueezableViewController.h: -------------------------------------------------------------------------------- 1 | // 2 | // IPNavBarSqueezableViewController.h 3 | // iPTT 4 | // 5 | // Created by zeta on 13/10/19. 6 | // Copyright (c) 2013年 shotdoor. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | 12 | @interface IPNavBarSqueezableViewController : UIViewController 13 | 14 | @property (nonatomic, weak) IBOutlet UIScrollView *triggeringScrollView; 15 | 16 | @property (nonatomic, strong) UIFont *titleFont; 17 | @property (nonatomic, strong) UIColor *titleColor; 18 | 19 | @property (nonatomic, copy) void (^squeezeCompletion)(void); // nil by default 20 | @property (nonatomic, copy) void (^expandCompletion)(void); // nil by default 21 | 22 | // inheritance 23 | - (void)processBars NS_REQUIRES_SUPER; 24 | - (void)squeezeBars NS_REQUIRES_SUPER; 25 | - (void)expandBars NS_REQUIRES_SUPER; 26 | 27 | - (NSString *)squeezedTitle:(NSString *)title; // @"[ %@ ]" by default 28 | 29 | #pragma mark - Scroll View Delegate 30 | 31 | - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView NS_REQUIRES_SUPER; 32 | - (void)scrollViewDidScroll:(UIScrollView *)scrollView NS_REQUIRES_SUPER; 33 | - (void)scrollViewWillEndDragging:(UIScrollView *)scrollView 34 | withVelocity:(CGPoint)velocity 35 | targetContentOffset:(inout CGPoint *)targetContentOffset NS_REQUIRES_SUPER; 36 | - (BOOL)scrollViewShouldScrollToTop:(UIScrollView *)scrollView NS_REQUIRES_SUPER; 37 | 38 | @end 39 | -------------------------------------------------------------------------------- /Demo/IPSqueezableViewController/IPSqueezableViewController-Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleDisplayName 8 | ${PRODUCT_NAME} 9 | CFBundleExecutable 10 | ${EXECUTABLE_NAME} 11 | CFBundleIdentifier 12 | com.shotdoor.${PRODUCT_NAME:rfc1034identifier} 13 | CFBundleInfoDictionaryVersion 14 | 6.0 15 | CFBundleName 16 | ${PRODUCT_NAME} 17 | CFBundlePackageType 18 | APPL 19 | CFBundleShortVersionString 20 | 1.0 21 | CFBundleSignature 22 | ???? 23 | CFBundleVersion 24 | 1.0 25 | LSRequiresIPhoneOS 26 | 27 | UIMainStoryboardFile 28 | Main 29 | UIRequiredDeviceCapabilities 30 | 31 | armv7 32 | 33 | UISupportedInterfaceOrientations 34 | 35 | UIInterfaceOrientationPortrait 36 | UIInterfaceOrientationLandscapeLeft 37 | UIInterfaceOrientationLandscapeRight 38 | 39 | 40 | 41 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # IPSqueezableViewController 2 | 3 | **Condensing effect of navigation bar as the one in Safari.app** 4 | 5 | Though iOS 8 introduce the `condensesBarsOnSwipe` property. It's still not the same as the one we see in Safari.app. 6 | 7 | ## Demo 8 | 9 | | Safari | IPSqueezableViewController | 10 | | ------------- | --------------------------- | 11 | | ![](https://raw.githubusercontent.com/zetachang/IPSqueezableViewController/master/Demo/demo-safari.gif) | ![](https://raw.githubusercontent.com/zetachang/IPSqueezableViewController/master/Demo/demo.gif) | 12 | 13 | ## Installation 14 | 15 | [CocoaPods](http://cocoapods.org) is the recommended method to install. Simply add the following line to your `Podfile`: 16 | 17 | #### Podfile 18 | 19 | ```ruby 20 | pod 'IPSqueezableViewController' 21 | ``` 22 | 23 | ## Usage 24 | 25 | 1. Make your view controller inherit `IPSqueezableViewController`. 26 | 2. Set up the `triggeringScrollView` property as the scrollview you want to trigger the condensing effect. 27 | 3. Set up `ip_rightNavBarItem` property to the bar button item you want to show as the right bar button item of the view controller. 28 | 4. See `Demo/IPSqueezableViewController.xcodepro` for example. 29 | 30 | ## Requirements 31 | 32 | * The subclass of IPSqueezableViewController must be contained in a `UINavigationController` and **cannot** be the `topViewController` of a `UINavigationController`. 33 | 34 | ## Contributions 35 | 36 | Suggestions or PR are welcome :-) 37 | 38 | ## Contact 39 | 40 | [David Chang](http://github.com/zetachang) 41 | [@zetachang](https://twitter.com/zetachang) 42 | 43 | ## License 44 | 45 | In short, IPSqueezableViewController is available under the MIT license. See the LICENSE file for more info. 46 | -------------------------------------------------------------------------------- /Demo/IPSqueezableViewController/IPAppDelegate.m: -------------------------------------------------------------------------------- 1 | // 2 | // IPAppDelegate.m 3 | // IPSqueezableViewController 4 | // 5 | // Created by zeta on 2014/5/15. 6 | // Copyright (c) 2014年 shotdoor. All rights reserved. 7 | // 8 | 9 | #import "IPAppDelegate.h" 10 | 11 | @implementation IPAppDelegate 12 | 13 | - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 14 | { 15 | // Override point for customization after application launch. 16 | self.window.tintColor = [UIColor redColor]; 17 | return YES; 18 | } 19 | 20 | - (void)applicationWillResignActive:(UIApplication *)application 21 | { 22 | // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state. 23 | // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game. 24 | } 25 | 26 | - (void)applicationDidEnterBackground:(UIApplication *)application 27 | { 28 | // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later. 29 | // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits. 30 | } 31 | 32 | - (void)applicationWillEnterForeground:(UIApplication *)application 33 | { 34 | // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background. 35 | } 36 | 37 | - (void)applicationDidBecomeActive:(UIApplication *)application 38 | { 39 | // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface. 40 | } 41 | 42 | - (void)applicationWillTerminate:(UIApplication *)application 43 | { 44 | // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:. 45 | } 46 | 47 | @end 48 | -------------------------------------------------------------------------------- /Demo/IPSqueezableViewController/Base.lproj/Main.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.

Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.

Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.
Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.

Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.

Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.

Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.
Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.

Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.

Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.

Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.
Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.

Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.

Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.

Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.
Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda. 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | -------------------------------------------------------------------------------- /Classes/IPNavBarSqueezableViewController.m: -------------------------------------------------------------------------------- 1 | // 2 | // IPNavBarSqueezableViewController.m 3 | // iPTT 4 | // 5 | // Created by zeta on 13/10/19. 6 | // Copyright (c) 2013年 shotdoor. All rights reserved. 7 | // 8 | 9 | #import "IPNavBarSqueezableViewController.h" 10 | 11 | /** 12 | Uncomment to debug 13 | */ 14 | // #define DEBUG_SQUEEZE 15 | 16 | #define SCREEN_WIDTH ((([UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationPortrait) \ 17 | || ([UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationPortraitUpsideDown)) \ 18 | ? [[UIScreen mainScreen] bounds].size.width : [[UIScreen mainScreen] bounds].size.height) 19 | 20 | #define NAVBAR_HEIGHT ((([UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationPortrait) \ 21 | || ([UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationPortraitUpsideDown)) ? 44.f : 32.f) 22 | 23 | #define TOOLBAR_HEIGHT ((([UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationPortrait) \ 24 | || ([UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationPortraitUpsideDown)) ? 49.f : 32.f) 25 | 26 | 27 | static const CGFloat kSqueezedNavigationBarHeight = 20.f; 28 | static const CGFloat kStatusBarHeight = 20.f; 29 | static const NSTimeInterval kAnimationDuration = 0.25; 30 | 31 | 32 | typedef NS_ENUM(NSInteger, IPNavBarSqueezingStatus) { 33 | IPNavBarSqueezingStatusNormal, 34 | IPNavBarSqueezingStatusProgress, 35 | IPNavBarSqueezingStatusSqueezing, 36 | IPNavBarSqueezingStatusSqueezed, 37 | IPNavBarSqueezingStatusUnSqueezing 38 | }; 39 | 40 | 41 | @interface IPNavBarSqueezableViewController () 42 | 43 | @property (nonatomic) IPNavBarSqueezingStatus navBarStatus; 44 | @property (nonatomic, strong) UILabel *titleViewPlaceholder; // compact placeholder for title view 45 | @property (nonatomic, strong) UIView *titleViewOriginal; // original full size title view 46 | @property (nonatomic, strong) NSArray *leftBarButtonItems; 47 | @property (nonatomic, strong) NSArray *rightBarButtonItems; 48 | @property (nonatomic) BOOL dragStart; 49 | @property (nonatomic) CGFloat previousYOffset; 50 | @property (nonatomic, strong) UITapGestureRecognizer *recognizer; 51 | 52 | @end 53 | 54 | 55 | @implementation IPNavBarSqueezableViewController 56 | 57 | - (void)viewDidLoad 58 | { 59 | [super viewDidLoad]; 60 | // Set up scroll to squeeze 61 | self.navBarStatus = IPNavBarSqueezingStatusNormal; 62 | self.dragStart = NO; 63 | 64 | // Set up title view 65 | self.titleViewOriginal = self.navigationItem.titleView; 66 | self.titleViewPlaceholder = [[UILabel alloc] initWithFrame:CGRectMake(0.f, 0.f, 67 | SCREEN_WIDTH * 220.f / 320.f, 68 | kStatusBarHeight)]; 69 | self.titleViewPlaceholder.textAlignment = NSTextAlignmentCenter; 70 | self.titleViewPlaceholder.lineBreakMode = NSLineBreakByTruncatingTail; 71 | self.titleViewPlaceholder.textColor = self.titleColor ? self.titleColor 72 | : self.navigationController.navigationBar.tintColor; 73 | // Recognize tap on nav bar 74 | self.recognizer = [[UITapGestureRecognizer alloc] initWithTarget:self 75 | action:@selector(navBarTapped:)]; 76 | self.recognizer.numberOfTapsRequired = 1; 77 | 78 | // Swipe to pop 79 | UISwipeGestureRecognizer *recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self 80 | action:@selector(swippedToPop:)]; 81 | recognizer.direction = UISwipeGestureRecognizerDirectionRight; 82 | [self.view addGestureRecognizer:recognizer]; 83 | 84 | [self.navigationController setToolbarHidden:NO 85 | animated:NO]; 86 | } 87 | 88 | - (void)swippedToPop:(id)sender 89 | { 90 | [self.navigationController popViewControllerAnimated:YES]; 91 | } 92 | 93 | - (void)viewWillAppear:(BOOL)animated 94 | { 95 | [super viewWillAppear:animated]; 96 | 97 | // Set up font 98 | if (!self.titleFont) { 99 | UIFont *navigationBarTitleFont = 100 | (UIFont *)self.navigationController.navigationBar.titleTextAttributes[NSFontAttributeName]; 101 | self.titleFont = navigationBarTitleFont ? [UIFont systemFontOfSize:navigationBarTitleFont.pointSize] 102 | : [UIFont systemFontOfSize:17.f]; 103 | } 104 | [self.transitionCoordinator animateAlongsideTransition: 105 | ^(id context) { 106 | if ([context presentationStyle] == UIModalPresentationNone){ 107 | self.titleViewPlaceholder.frame = CGRectOffset(self.titleViewPlaceholder.frame, -200.f, 0.f); 108 | } 109 | } completion:nil]; 110 | 111 | self.navigationItem.hidesBackButton = NO; 112 | self.navigationController.toolbarHidden = NO; 113 | 114 | self.triggeringScrollView.contentInset = UIEdgeInsetsMake(NAVBAR_HEIGHT + kStatusBarHeight, 115 | 0.f, 116 | TOOLBAR_HEIGHT, 117 | 0.f); 118 | } 119 | 120 | - (void)viewWillDisappear:(BOOL)animated 121 | { 122 | [super viewWillDisappear:animated]; 123 | 124 | // Unsqueeze manually 125 | self.navigationController.navigationBar.frame = CGRectMake(0.f, 126 | kStatusBarHeight, 127 | SCREEN_WIDTH, 128 | NAVBAR_HEIGHT); 129 | [self.navigationController.navigationBar removeGestureRecognizer:self.recognizer]; 130 | self.navBarStatus = IPNavBarSqueezingStatusNormal; 131 | 132 | [self.transitionCoordinator animateAlongsideTransition: 133 | ^(id context) { 134 | if ([context presentationStyle] != UIModalPresentationNone) { 135 | return; 136 | } 137 | self.titleViewPlaceholder.alpha = 0.f; 138 | self.titleViewPlaceholder.frame = CGRectOffset(self.titleViewPlaceholder.frame, 200.f, 0.f); 139 | [self.navigationController setToolbarHidden:YES 140 | animated:YES]; 141 | } completion:nil]; 142 | 143 | [self.transitionCoordinator notifyWhenInteractionEndsUsingBlock: 144 | ^(id context) { 145 | if (![context isCancelled]) { 146 | return; 147 | } 148 | double delayInSeconds = 0.5; 149 | dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, 150 | (int64_t)(delayInSeconds * NSEC_PER_SEC)); 151 | dispatch_after(popTime, dispatch_get_main_queue(), ^(void) { 152 | if (self.navigationController.toolbarHidden) { 153 | self.navigationController.toolbarHidden = NO; 154 | } 155 | }); 156 | }]; 157 | } 158 | 159 | - (void)viewDidDisappear:(BOOL)animated 160 | { 161 | [super viewDidDisappear:animated]; 162 | [self.titleViewPlaceholder removeFromSuperview]; 163 | } 164 | 165 | - (void)setTriggeringScrollView:(UIScrollView *)triggeringScrollView 166 | { 167 | if (self.triggeringScrollView == triggeringScrollView) { 168 | return; 169 | } 170 | self->_triggeringScrollView = triggeringScrollView; 171 | self->_triggeringScrollView.delegate = self; 172 | 173 | // Recognize tap on content 174 | // TODO: move to property and remove gestures on dealloc 175 | UITapGestureRecognizer *tapContentRecognizer = [[UITapGestureRecognizer 176 | alloc] initWithTarget:self 177 | action:@selector(navBarTapped:)]; 178 | tapContentRecognizer.numberOfTapsRequired = 1; 179 | [self.triggeringScrollView addGestureRecognizer:tapContentRecognizer]; 180 | } 181 | 182 | 183 | #pragma mark - Setter methods 184 | 185 | - (void)setTitleFont:(UIFont *)titleFont 186 | { 187 | if ([self.titleFont.familyName isEqualToString:titleFont.familyName]) { 188 | return; 189 | } 190 | self->_titleFont = titleFont; 191 | self.titleViewPlaceholder.font = self.titleFont; 192 | } 193 | 194 | - (void)setTitleColor:(UIColor *)titleColor 195 | { 196 | if (CGColorEqualToColor(self.titleColor.CGColor, titleColor.CGColor)) { 197 | return; 198 | } 199 | self->_titleColor = titleColor; 200 | self.titleViewPlaceholder.textColor = self.titleColor; 201 | } 202 | 203 | 204 | #pragma mark - Scroll View Delegate 205 | 206 | - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView 207 | { 208 | #ifdef DEBUG_SQUEEZE 209 | NSLog(@"Begin Dragging"); 210 | #endif 211 | if (self.navBarStatus == IPNavBarSqueezingStatusNormal) { 212 | self.dragStart = YES; 213 | } 214 | self.previousYOffset = scrollView.contentOffset.y; 215 | } 216 | 217 | - (void)scrollViewDidScroll:(UIScrollView *)scrollView 218 | { 219 | if (self.dragStart == NO) { 220 | return; 221 | } 222 | CGFloat delta = scrollView.contentOffset.y - self.previousYOffset; 223 | 224 | #ifdef DEBUG_SQUEEZE 225 | NSLog(@"scroll to offset: %f", scrollView.contentOffset.y); 226 | NSLog(@"offset delta: %f", delta); 227 | #endif 228 | switch (self.navBarStatus) { 229 | case IPNavBarSqueezingStatusNormal: { 230 | // Squeeze when scroll up higher than a threshold 231 | CGFloat threshold = 30.f; 232 | 233 | if (delta < threshold) { 234 | return; 235 | } 236 | if (delta > 200.f) { 237 | [self squeezeBars]; 238 | } else { 239 | [self processBars]; 240 | [self squeezeNavBarWithProgress:delta / 200.f]; 241 | } 242 | } 243 | break; 244 | case IPNavBarSqueezingStatusProgress: { 245 | [self squeezeNavBarWithProgress:delta / 200.f]; 246 | } 247 | break; 248 | default: break; 249 | } 250 | } 251 | 252 | - (void)scrollViewWillEndDragging:(UIScrollView *)scrollView 253 | withVelocity:(CGPoint)velocity 254 | targetContentOffset:(inout CGPoint *)targetContentOffset 255 | { 256 | #ifdef DEBUG_SQUEEZE 257 | NSLog(@"End Dragging: (%f,%f) %f", velocity.x, velocity.y, targetContentOffset->y); 258 | #endif 259 | self.dragStart = NO; 260 | CGFloat offsetDelta = targetContentOffset->y - self.previousYOffset; 261 | 262 | // Finish squeezing when squeezing is not finished 263 | if (self.navBarStatus == IPNavBarSqueezingStatusProgress) { 264 | [self squeezeBars]; 265 | } 266 | /** 267 | Un-squeeze only when 268 | o scroll up 269 | o fast enough 270 | o is squeezed 271 | Or 272 | o is squeezed 273 | o the target is top edge 274 | */ 275 | if (self.navBarStatus == IPNavBarSqueezingStatusSqueezed) { 276 | if (offsetDelta < 0 || 277 | fabs((targetContentOffset->y) + 40) < FLT_EPSILON) { 278 | [self expandBars]; 279 | } 280 | } 281 | 282 | } 283 | 284 | - (BOOL)scrollViewShouldScrollToTop:(UIScrollView *)scrollView 285 | { 286 | if (self.navBarStatus != IPNavBarSqueezingStatusSqueezed) { 287 | return YES; 288 | } 289 | [self expandBars]; 290 | return NO; 291 | } 292 | 293 | 294 | #pragma mark - Bars squeezing 295 | 296 | - (void)processBars 297 | { 298 | // for inheritance 299 | } 300 | 301 | - (void)squeezeNavBarWithProgress:(CGFloat)delta 302 | { 303 | #ifdef DEBUG_SQUEEZE 304 | NSLog(@"Progress: %f", delta); 305 | #endif 306 | CGFloat progress = MIN(delta, 1.f); 307 | 308 | self.navBarStatus = IPNavBarSqueezingStatusProgress; 309 | 310 | [self hideBarItemsAnimated:YES]; 311 | 312 | self.navigationController.navigationBar.frame = CGRectMake(0.f, 313 | kStatusBarHeight, 314 | SCREEN_WIDTH, 315 | NAVBAR_HEIGHT 316 | - (NAVBAR_HEIGHT - kSqueezedNavigationBarHeight) 317 | * progress); 318 | if (progress < delta) { 319 | [self squeezeBars]; 320 | } 321 | } 322 | 323 | - (void)hideBarItemsAnimated:(BOOL)animated 324 | { 325 | if (self.navigationItem.leftBarButtonItems.count != 0) { 326 | self.leftBarButtonItems = [self.navigationItem.leftBarButtonItems copy]; 327 | [self.navigationItem setLeftBarButtonItems:nil 328 | animated:animated]; 329 | } 330 | if (self.navigationItem.rightBarButtonItems.count != 0) { 331 | self.rightBarButtonItems = [self.navigationItem.rightBarButtonItems copy]; 332 | [self.navigationItem setRightBarButtonItems:nil 333 | animated:animated]; 334 | } 335 | if (!self.navigationItem.hidesBackButton) { 336 | [self.navigationItem setHidesBackButton:YES 337 | animated:animated]; 338 | } 339 | if (!self.navigationController.toolbarHidden) { 340 | [self.navigationController setToolbarHidden:YES 341 | animated:animated]; 342 | } 343 | } 344 | 345 | - (void)showBarItemsAnimated:(BOOL)animated 346 | { 347 | [self.navigationItem setLeftBarButtonItems:self.leftBarButtonItems 348 | animated:animated]; 349 | [self.navigationItem setRightBarButtonItems:self.rightBarButtonItems 350 | animated:animated]; 351 | [self.navigationItem setHidesBackButton:NO 352 | animated:animated]; 353 | [self.navigationController setToolbarHidden:NO 354 | animated:animated]; 355 | } 356 | 357 | - (void)squeezeBars 358 | { 359 | #ifdef DEBUG_SQUEEZE 360 | NSLog(@"Start squeezing"); 361 | #endif 362 | self.navBarStatus = IPNavBarSqueezingStatusSqueezing; 363 | self.titleViewPlaceholder.text = self.title; 364 | 365 | UIView* titleViewContainer = [[UIView alloc] initWithFrame:CGRectMake(0.f, 0.f, 366 | SCREEN_WIDTH, 367 | kStatusBarHeight)]; 368 | self.titleViewPlaceholder.translatesAutoresizingMaskIntoConstraints = NO; 369 | [titleViewContainer addSubview:self.titleViewPlaceholder]; 370 | 371 | NSLayoutConstraint *centerXConstraint = [NSLayoutConstraint constraintWithItem:self.titleViewPlaceholder 372 | attribute:NSLayoutAttributeCenterX 373 | relatedBy:NSLayoutRelationEqual 374 | toItem:titleViewContainer 375 | attribute:NSLayoutAttributeCenterX 376 | multiplier:1.0 377 | constant:0.0]; 378 | NSLayoutConstraint* topMarginConstraint = [NSLayoutConstraint constraintWithItem:self.titleViewPlaceholder 379 | attribute:NSLayoutAttributeTop 380 | relatedBy:NSLayoutRelationEqual 381 | toItem:titleViewContainer 382 | attribute:NSLayoutAttributeTop 383 | multiplier:1 384 | constant:4]; 385 | NSLayoutConstraint* heightConstraint = [NSLayoutConstraint constraintWithItem:self.titleViewPlaceholder attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationEqual toItem:nil attribute:NSLayoutAttributeNotAnAttribute multiplier:1.0 constant:kStatusBarHeight]; 386 | 387 | self.navigationItem.titleView = titleViewContainer; 388 | [titleViewContainer addConstraint:centerXConstraint]; 389 | [titleViewContainer addConstraint:topMarginConstraint]; 390 | [self.titleViewPlaceholder addConstraint:heightConstraint]; 391 | 392 | [self hideBarItemsAnimated:YES]; 393 | 394 | [UIView animateWithDuration:kAnimationDuration 395 | delay:0.0 396 | options:UIViewAnimationOptionCurveEaseInOut 397 | animations:^{ 398 | CGRect frame = CGRectMake(0.f, 399 | kStatusBarHeight, 400 | SCREEN_WIDTH, 401 | kSqueezedNavigationBarHeight); 402 | self.titleViewPlaceholder.transform = 403 | CGAffineTransformScale(self.titleViewPlaceholder.transform, 0.75f, 0.75f); 404 | 405 | self.navigationController.navigationBar.frame = frame; 406 | } 407 | completion:^(BOOL finished) { 408 | [self.navigationController.navigationBar addGestureRecognizer:self.recognizer]; 409 | self.navigationController.navigationBar.userInteractionEnabled = YES; 410 | self.titleViewPlaceholder.userInteractionEnabled = YES; 411 | self.triggeringScrollView.contentInset = UIEdgeInsetsMake(kStatusBarHeight 412 | + kSqueezedNavigationBarHeight, 413 | 0.f, 0.f, 0.f); 414 | self.triggeringScrollView.scrollIndicatorInsets = 415 | UIEdgeInsetsMake(kStatusBarHeight 416 | + kSqueezedNavigationBarHeight, 417 | 0.f, 0.f, 0.f); 418 | self.titleViewPlaceholder.text = [self squeezedTitle: 419 | self.titleViewPlaceholder.text]; 420 | if (self.squeezeCompletion) { 421 | self.squeezeCompletion(); 422 | } 423 | #ifdef DEBUG_SQUEEZE 424 | NSLog(@"End squeezing"); 425 | #endif 426 | self.navBarStatus = IPNavBarSqueezingStatusSqueezed; 427 | }]; 428 | } 429 | 430 | - (NSString *)squeezedTitle:(NSString *)title 431 | { 432 | return [NSString stringWithFormat:@"[ %@ ]", title]; 433 | } 434 | 435 | - (void)expandBars 436 | { 437 | #ifdef DEBUG_SQUEEZE 438 | NSLog(@"Start expanding"); 439 | #endif 440 | self.navBarStatus = IPNavBarSqueezingStatusUnSqueezing; 441 | [self.navigationController.navigationBar removeGestureRecognizer:self.recognizer]; 442 | self.titleViewPlaceholder.text = self.title; 443 | 444 | [UIView animateWithDuration:kAnimationDuration 445 | delay:0.0 446 | options:UIViewAnimationOptionCurveEaseInOut 447 | animations:^{ 448 | self.navigationController.navigationBar.frame = CGRectMake(0.f, 449 | kStatusBarHeight, 450 | SCREEN_WIDTH, 451 | NAVBAR_HEIGHT); 452 | // title 453 | self.titleViewPlaceholder.transform = CGAffineTransformIdentity; 454 | 455 | self.triggeringScrollView.contentInset = 456 | UIEdgeInsetsMake(NAVBAR_HEIGHT 457 | + kStatusBarHeight, 458 | 0.f, 459 | TOOLBAR_HEIGHT, 460 | 0.f); 461 | self.triggeringScrollView.scrollIndicatorInsets = 462 | UIEdgeInsetsMake(NAVBAR_HEIGHT 463 | + kStatusBarHeight, 464 | 0.f, 0.f, 0.f); 465 | self.navigationController.toolbarHidden = NO; 466 | } 467 | completion:^(BOOL finished) { 468 | self.navigationItem.titleView = self.titleViewOriginal; 469 | 470 | [self showBarItemsAnimated:YES]; 471 | 472 | if (self.expandCompletion) { 473 | self.expandCompletion(); 474 | } 475 | #ifdef DEBUG_SQUEEZE 476 | NSLog(@"End expanding"); 477 | #endif 478 | self.navBarStatus = IPNavBarSqueezingStatusNormal; 479 | }]; 480 | } 481 | 482 | - (void)navBarTapped:(id)sender 483 | { 484 | if (self.navBarStatus == IPNavBarSqueezingStatusSqueezed) { 485 | [self expandBars]; 486 | } 487 | } 488 | 489 | - (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation 490 | duration:(NSTimeInterval)duration 491 | { 492 | [self expandBars]; 493 | } 494 | 495 | @end 496 | -------------------------------------------------------------------------------- /Demo/IPSqueezableViewController.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 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