├── screenshot.gif ├── MGCollapsableTableView.xcodeproj ├── project.xcworkspace │ └── contents.xcworkspacedata └── project.pbxproj ├── MGCollapsableTableView ├── ViewController.h ├── AppDelegate.h ├── main.m ├── Style1 │ ├── Style1TableViewController.h │ ├── Style1TableViewHeaderView.h │ ├── Style1TableViewHeaderView.m │ ├── Style1TableViewController.m │ └── Style1TableViewHeaderView.xib ├── Base │ ├── UITableView+VisibleSections.h │ ├── MGCollapsableTableViewSectionSource.m │ ├── MGCollapsableTableViewSectionViewBase.h │ ├── MGCollapsableTableViewSectionSource.h │ ├── MGCollapsableTableViewController.h │ ├── UITableView+VisibleSections.m │ └── MGCollapsableTableViewController.m ├── ViewController.m ├── Assets.xcassets │ └── AppIcon.appiconset │ │ └── Contents.json ├── Info.plist ├── Base.lproj │ ├── LaunchScreen.storyboard │ └── Main.storyboard └── AppDelegate.m ├── .gitignore ├── LICENSE └── README.md /screenshot.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mgenware/MGCollapsableTableView/HEAD/screenshot.gif -------------------------------------------------------------------------------- /MGCollapsableTableView.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /MGCollapsableTableView/ViewController.h: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.h 3 | // MGCollapsableTableView 4 | // 5 | // Created by Mgen on 15/11/10. 6 | // Copyright © 2015 Mgen. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface ViewController : UIViewController 12 | 13 | 14 | @end 15 | 16 | -------------------------------------------------------------------------------- /MGCollapsableTableView/AppDelegate.h: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.h 3 | // MGCollapsableTableView 4 | // 5 | // Created by Mgen on 15/11/10. 6 | // Copyright © 2015 Mgen. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface AppDelegate : UIResponder 12 | 13 | @property (strong, nonatomic) UIWindow *window; 14 | 15 | 16 | @end 17 | 18 | -------------------------------------------------------------------------------- /MGCollapsableTableView/main.m: -------------------------------------------------------------------------------- 1 | // 2 | // main.m 3 | // MGCollapsableTableView 4 | // 5 | // Created by Mgen on 15/11/10. 6 | // Copyright © 2015 Mgen. All rights reserved. 7 | // 8 | 9 | #import 10 | #import "AppDelegate.h" 11 | 12 | int main(int argc, char * argv[]) { 13 | @autoreleasepool { 14 | return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class])); 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /MGCollapsableTableView/Style1/Style1TableViewController.h: -------------------------------------------------------------------------------- 1 | // 2 | // Style1TableViewController.h 3 | // MGCollapsableTableView 4 | // 5 | // Created by Mgen on 15/11/10. 6 | // Copyright © 2015 Mgen. All rights reserved. 7 | // https://github.com/mgenware/MGCollapsableTableView 8 | // 9 | 10 | #import 11 | #import "MGCollapsableTableViewController.h" 12 | 13 | @interface Style1TableViewController : MGCollapsableTableViewController 14 | 15 | @end 16 | -------------------------------------------------------------------------------- /MGCollapsableTableView/Base/UITableView+VisibleSections.h: -------------------------------------------------------------------------------- 1 | // 2 | // Original Source: http://stackoverflow.com/questions/15204328/how-to-retrieve-all-visible-table-section-header-views/ 3 | // 4 | 5 | #import 6 | 7 | @interface UITableView (VisibleSections) 8 | 9 | // Returns an array of NSNumbers of the current visible section indexes 10 | - (NSArray *)indexesOfVisibleSections; 11 | // Returns an array of UITableViewHeaderFooterView objects of the current visible section headers 12 | - (NSArray *)visibleSections; 13 | 14 | @end 15 | -------------------------------------------------------------------------------- /.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/ 27 | -------------------------------------------------------------------------------- /MGCollapsableTableView/ViewController.m: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.m 3 | // MGCollapsableTableView 4 | // 5 | // Created by Mgen on 15/11/10. 6 | // Copyright © 2015 Mgen. All rights reserved. 7 | // 8 | 9 | #import "ViewController.h" 10 | 11 | @interface ViewController () 12 | 13 | @end 14 | 15 | @implementation ViewController 16 | 17 | - (void)viewDidLoad { 18 | [super viewDidLoad]; 19 | // Do any additional setup after loading the view, typically from a nib. 20 | } 21 | 22 | - (void)didReceiveMemoryWarning { 23 | [super didReceiveMemoryWarning]; 24 | // Dispose of any resources that can be recreated. 25 | } 26 | 27 | @end 28 | -------------------------------------------------------------------------------- /MGCollapsableTableView/Style1/Style1TableViewHeaderView.h: -------------------------------------------------------------------------------- 1 | // 2 | // Style1TableViewHeaderView.h 3 | // MGCollapsableTableView 4 | // 5 | // Created by Mgen on 15/11/10. 6 | // Copyright © 2015 Mgen. All rights reserved. 7 | // https://github.com/mgenware/MGCollapsableTableView 8 | // 9 | 10 | #import 11 | #import "MGCollapsableTableViewSectionViewBase.h" 12 | 13 | @interface Style1TableViewHeaderView : UITableViewHeaderFooterView 14 | 15 | @property (nonatomic, weak) id delegate; 16 | @property (nonatomic, assign) BOOL tableViewSectionCollapsed; 17 | 18 | @property (strong, nonatomic) IBOutlet UILabel *headerTextLabel; 19 | 20 | @end 21 | -------------------------------------------------------------------------------- /MGCollapsableTableView/Assets.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" : "29x29", 11 | "scale" : "3x" 12 | }, 13 | { 14 | "idiom" : "iphone", 15 | "size" : "40x40", 16 | "scale" : "2x" 17 | }, 18 | { 19 | "idiom" : "iphone", 20 | "size" : "40x40", 21 | "scale" : "3x" 22 | }, 23 | { 24 | "idiom" : "iphone", 25 | "size" : "60x60", 26 | "scale" : "2x" 27 | }, 28 | { 29 | "idiom" : "iphone", 30 | "size" : "60x60", 31 | "scale" : "3x" 32 | } 33 | ], 34 | "info" : { 35 | "version" : 1, 36 | "author" : "xcode" 37 | } 38 | } -------------------------------------------------------------------------------- /MGCollapsableTableView/Base/MGCollapsableTableViewSectionSource.m: -------------------------------------------------------------------------------- 1 | // 2 | // MGCollapsableTableViewSectionSource.m 3 | // MGCollapsableTableView 4 | // 5 | // Created by Mgen on 15/11/11. 6 | // Copyright © 2015 Mgen. All rights reserved. 7 | // https://github.com/mgenware/MGCollapsableTableView 8 | // 9 | 10 | #import "MGCollapsableTableViewSectionSource.h" 11 | 12 | @implementation MGCollapsableTableViewSectionSource 13 | 14 | - (instancetype)initWithSectionInfo:(id)sectionInfo rows:(NSArray *)rows { 15 | self = [super init]; 16 | if (self) { 17 | _sectionInfo = sectionInfo; 18 | _rows = rows; 19 | } 20 | 21 | return self; 22 | } 23 | 24 | - (instancetype)initWithRows:(NSArray *)rows { 25 | return [self initWithSectionInfo:nil rows:rows]; 26 | } 27 | 28 | - (id)objectAtIndex:(NSUInteger)index { 29 | return [self.rows objectAtIndex:index]; 30 | } 31 | 32 | @end 33 | -------------------------------------------------------------------------------- /MGCollapsableTableView/Base/MGCollapsableTableViewSectionViewBase.h: -------------------------------------------------------------------------------- 1 | // 2 | // MGCollapsableTableViewSectionBase.h 3 | // MGCollapsableTableView 4 | // 5 | // Created by Mgen on 15/11/10. 6 | // Copyright © 2015 Mgen. All rights reserved. 7 | // https://github.com/mgenware/MGCollapsableTableView 8 | // 9 | 10 | #import 11 | 12 | @protocol MGCollapsableTableViewSectionViewBaseDelegate 13 | 14 | @optional 15 | 16 | /** 17 | * Invoked when Section View's tableViewSectionCollapsed property changes. 18 | */ 19 | - (void)collapseableSection:(id)sectionView isCollapsed:(BOOL)isCollapsed; 20 | 21 | @end 22 | 23 | 24 | @protocol MGCollapsableTableViewSectionViewBase 25 | 26 | @required 27 | 28 | /** 29 | * Delegates section view's events. 30 | */ 31 | @property (nonatomic, weak) id delegate; 32 | 33 | /** 34 | * Indicates whether this section view is collapsed. 35 | */ 36 | @property (nonatomic, assign) BOOL tableViewSectionCollapsed; 37 | 38 | @end 39 | 40 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2015 Mgen 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | 23 | -------------------------------------------------------------------------------- /MGCollapsableTableView/Base/MGCollapsableTableViewSectionSource.h: -------------------------------------------------------------------------------- 1 | // 2 | // MGCollapsableTableViewSectionSource.h 3 | // MGCollapsableTableView 4 | // 5 | // Created by Mgen on 15/11/11. 6 | // Copyright © 2015 Mgen. All rights reserved. 7 | // https://github.com/mgenware/MGCollapsableTableView 8 | // 9 | 10 | #import 11 | 12 | /** 13 | * Section data object 14 | */ 15 | @interface MGCollapsableTableViewSectionSource : NSObject 16 | 17 | /** 18 | * Custom section info. 19 | */ 20 | @property (nonatomic, strong) id sectionInfo; 21 | 22 | /** 23 | * Indicates whether this section is collapsed. 24 | */ 25 | @property (nonatomic, assign) BOOL collapsed; 26 | 27 | /** 28 | * Custom data for each rows. 29 | */ 30 | @property (nonatomic, strong) NSArray *rows; 31 | 32 | /** 33 | * Creates a MGCollapsableTableViewSectionSource object with custom row data. 34 | */ 35 | - (instancetype)initWithRows:(NSArray *)rows; 36 | 37 | /** 38 | * Creates a MGCollapsableTableViewSectionSource object with custom section info and row data. 39 | */ 40 | - (instancetype)initWithSectionInfo:(id)sectionInfo rows:(NSArray *)rows; 41 | 42 | /** 43 | * A shortcut for [self.rows objectAtIndex:index]. 44 | */ 45 | - (id)objectAtIndex:(NSUInteger)index; 46 | 47 | @end 48 | -------------------------------------------------------------------------------- /MGCollapsableTableView/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | APPL 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleSignature 20 | ???? 21 | CFBundleVersion 22 | 1 23 | LSRequiresIPhoneOS 24 | 25 | UILaunchStoryboardName 26 | LaunchScreen 27 | UIMainStoryboardFile 28 | Main 29 | UIRequiredDeviceCapabilities 30 | 31 | armv7 32 | 33 | UISupportedInterfaceOrientations 34 | 35 | UIInterfaceOrientationPortrait 36 | UIInterfaceOrientationLandscapeLeft 37 | UIInterfaceOrientationLandscapeRight 38 | 39 | 40 | 41 | -------------------------------------------------------------------------------- /MGCollapsableTableView/Style1/Style1TableViewHeaderView.m: -------------------------------------------------------------------------------- 1 | // 2 | // Style1TableViewHeaderView.m 3 | // MGCollapsableTableView 4 | // 5 | // Created by Mgen on 15/11/10. 6 | // Copyright © 2015 Mgen. All rights reserved. 7 | // https://github.com/mgenware/MGCollapsableTableView 8 | // 9 | 10 | #import "Style1TableViewHeaderView.h" 11 | 12 | @interface Style1TableViewHeaderView () 13 | 14 | @property (strong, nonatomic) IBOutlet UILabel *indicatorLabel; 15 | 16 | @end 17 | 18 | @implementation Style1TableViewHeaderView 19 | 20 | - (void)awakeFromNib { 21 | [super awakeFromNib]; 22 | 23 | UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(contentViewClick:)]; 24 | [self addGestureRecognizer:tapGesture]; 25 | } 26 | 27 | - (IBAction)contentViewClick:(id)sender { 28 | [self toggleState]; 29 | } 30 | 31 | - (void)toggleState { 32 | self.tableViewSectionCollapsed = !self.tableViewSectionCollapsed; 33 | [self notifyDelegate]; 34 | } 35 | 36 | - (void)setTableViewSectionCollapsed:(BOOL)tableViewSectionCollapsed { 37 | _tableViewSectionCollapsed = tableViewSectionCollapsed; 38 | [self refreshIndicator]; 39 | } 40 | 41 | - (void)refreshIndicator { 42 | self.indicatorLabel.text = self.tableViewSectionCollapsed ? @"+" : @"-"; 43 | } 44 | 45 | - (void)notifyDelegate { 46 | if ([self.delegate respondsToSelector:@selector(collapseableSection:isCollapsed:)]) { 47 | [self.delegate collapseableSection:self isCollapsed:self.tableViewSectionCollapsed]; 48 | } 49 | } 50 | 51 | @end 52 | -------------------------------------------------------------------------------- /MGCollapsableTableView/Base/MGCollapsableTableViewController.h: -------------------------------------------------------------------------------- 1 | // 2 | // MGCollapsableTableViewController.h 3 | // MGCollapsableTableView 4 | // 5 | // Created by Mgen on 15/11/10. 6 | // Copyright © 2015 Mgen. All rights reserved. 7 | // https://github.com/mgenware/MGCollapsableTableView 8 | // 9 | 10 | #import 11 | #import "MGCollapsableTableViewSectionViewBase.h" 12 | #import "MGCollapsableTableViewSectionSource.h" 13 | 14 | /** 15 | * Base class for implementing a collapsable UITableViewController 16 | */ 17 | @interface MGCollapsableTableViewController : UITableViewController 18 | 19 | /** 20 | * Section data, array of MGCollapsableTableViewSectionSource object. 21 | */ 22 | @property (nonatomic, strong) NSArray *sections; 23 | 24 | /** 25 | * Note to subclass implementation: call this method in "- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section", this method will delegate UI(MGCollapsableTableViewSectionViewBase object) events to UITableViewController. 26 | */ 27 | - (id)setupCollapsableSection:(id)sectionView sectionIndex:(NSInteger)sectionIndex; 28 | 29 | /** 30 | * Collapses all section headers. 31 | */ 32 | - (void)collapseAllSections; 33 | 34 | /** 35 | * Expands all section headers. 36 | */ 37 | - (void)expandAllSections; 38 | 39 | /** 40 | * Collapses a section header by specified index. 41 | */ 42 | - (void)collapseSection:(NSUInteger)section; 43 | 44 | /** 45 | * Expands a section header by specified index. 46 | */ 47 | - (void)expandSection:(NSUInteger)section; 48 | 49 | @end 50 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # MGCollapsableTableViewController 2 | Collapsable UITableView Sections. 3 | 4 | * Xcode 7 or higher. 5 | * iOS 6.0 or higher. 6 | 7 | ## Screenshot 8 | [![Screenshot](screenshot.gif)](screenshot.gif?raw=true) 9 | 10 | ## Sample Project 11 | Download the whole project or clone this Git repository. 12 | 13 | ## Usage 14 | * The `./Base` folder, which contains all required source files, should be copied to your project. 15 | * Implement your own section header view with `MGCollapsableTableViewSectionViewBase` protocol. 16 | * Implement the `delegate` property. 17 | * Invoke `delegate`'s `- (void)collapseableSection:(id)sectionView isCollapsed:(BOOL)isCollapsed` on header view events, e.g. when user taps on header view. 18 | * Implement the `tableViewSectionCollapsed` property, note that its getter and setter are used to obtain or change the state of the header view, **you should not invoke `delegate` methods when `tableViewSectionCollapsed` changes**. 19 | * Implement your own `UITableViewController` by subclassing `MGCollapsableTableViewController`. 20 | * Create an array of `MGCollapsableTableViewSectionSource` objects as the data source for UITableView. 21 | * Implement `- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section` and return your desired header view height. 22 | * Implement `- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section`. You **must call `[self setupCollapsableSection:sectionIndex:]` on each section view object** in order to delegate header view events to `UITableViewController`. 23 | * Implement other necessary methods(`cellForRowAtIndexPath`...). 24 | * Call `collapseSection`, `expandSection`, `collapseAllSections`, `expandAllSections` if you want to programmatically control the state of a(all) section(s). 25 | -------------------------------------------------------------------------------- /MGCollapsableTableView/Base.lproj/LaunchScreen.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | -------------------------------------------------------------------------------- /MGCollapsableTableView/Base/UITableView+VisibleSections.m: -------------------------------------------------------------------------------- 1 | 2 | #import "UITableView+VisibleSections.h" 3 | 4 | @implementation UITableView (VisibleSections) 5 | 6 | - (NSArray *)indexesOfVisibleSections { 7 | // Note: We can't just use indexPathsForVisibleRows, since it won't return index paths for empty sections. 8 | NSMutableArray *visibleSectionIndexes = [NSMutableArray arrayWithCapacity:self.numberOfSections]; 9 | for (int i = 0; i < self.numberOfSections; i++) { 10 | CGRect headerRect; 11 | // In plain style, the section headers are floating on the top, so the section header is visible if any part of the section's rect is still visible. 12 | // In grouped style, the section headers are not floating, so the section header is only visible if it's actualy rect is visible. 13 | if (self.style == UITableViewStylePlain) { 14 | headerRect = [self rectForSection:i]; 15 | } else { 16 | headerRect = [self rectForHeaderInSection:i]; 17 | } 18 | // The "visible part" of the tableView is based on the content offset and the tableView's size. 19 | CGRect visiblePartOfTableView = CGRectMake(self.contentOffset.x, self.contentOffset.y, self.bounds.size.width, self.bounds.size.height); 20 | if (CGRectIntersectsRect(visiblePartOfTableView, headerRect)) { 21 | [visibleSectionIndexes addObject:@(i)]; 22 | } 23 | } 24 | return visibleSectionIndexes; 25 | } 26 | 27 | - (NSArray *)visibleSections { 28 | NSMutableArray *visibleSects = [NSMutableArray arrayWithCapacity:self.numberOfSections]; 29 | for (NSNumber *sectionIndex in self.indexesOfVisibleSections) { 30 | UITableViewHeaderFooterView *sectionHeader = [self headerViewForSection:sectionIndex.intValue]; 31 | [visibleSects addObject:sectionHeader]; 32 | } 33 | 34 | return visibleSects; 35 | } 36 | 37 | @end 38 | -------------------------------------------------------------------------------- /MGCollapsableTableView/AppDelegate.m: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.m 3 | // MGCollapsableTableView 4 | // 5 | // Created by Mgen on 15/11/10. 6 | // Copyright © 2015 Mgen. All rights reserved. 7 | // 8 | 9 | #import "AppDelegate.h" 10 | 11 | @interface AppDelegate () 12 | 13 | @end 14 | 15 | @implementation AppDelegate 16 | 17 | 18 | - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { 19 | // Override point for customization after application launch. 20 | return YES; 21 | } 22 | 23 | - (void)applicationWillResignActive:(UIApplication *)application { 24 | // 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. 25 | // 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. 26 | } 27 | 28 | - (void)applicationDidEnterBackground:(UIApplication *)application { 29 | // 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. 30 | // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits. 31 | } 32 | 33 | - (void)applicationWillEnterForeground:(UIApplication *)application { 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 | // 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. 39 | } 40 | 41 | - (void)applicationWillTerminate:(UIApplication *)application { 42 | // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:. 43 | } 44 | 45 | @end 46 | -------------------------------------------------------------------------------- /MGCollapsableTableView/Style1/Style1TableViewController.m: -------------------------------------------------------------------------------- 1 | // 2 | // Style1TableViewController.m 3 | // MGCollapsableTableView 4 | // 5 | // Created by Mgen on 15/11/10. 6 | // Copyright © 2015 Mgen. All rights reserved. 7 | // https://github.com/mgenware/MGCollapsableTableView 8 | // 9 | 10 | #import "Style1TableViewController.h" 11 | #import "Style1TableViewHeaderView.h" 12 | 13 | #define kSectionHeaderHeight 40.0 14 | #define kCellHeight 30.0 15 | #define kCellID @"Cell" 16 | #define kSectionHeaderID @"SectionHeader" 17 | 18 | @interface Style1TableViewController () 19 | @property (strong, nonatomic) IBOutlet UIBarButtonItem *rightBarButton; 20 | @property (assign, nonatomic) BOOL rightBarButtonExpandAllFlag; 21 | 22 | @end 23 | 24 | @implementation Style1TableViewController 25 | 26 | - (void)viewDidLoad { 27 | [super viewDidLoad]; 28 | 29 | NSMutableArray *dataSource = [NSMutableArray array]; 30 | for (int i = 0; i < 50; i++) { 31 | NSMutableArray *cells = [NSMutableArray array]; 32 | for (int j = 0; j < 5; j++) { 33 | [cells addObject:[NSString stringWithFormat:@"Cell %@", @(j + 1)]]; 34 | } 35 | 36 | MGCollapsableTableViewSectionSource *section = [[MGCollapsableTableViewSectionSource alloc] initWithSectionInfo:[NSString stringWithFormat:@"Section %@", @(i + 1)] rows:cells]; 37 | [dataSource addObject:section]; 38 | } 39 | 40 | self.sections = dataSource; 41 | 42 | int i = 1; 43 | for (MGCollapsableTableViewSectionSource *sectionSource in self.sections) { 44 | sectionSource.sectionInfo = [NSString stringWithFormat:@"Section - %@", @(i)]; 45 | i++; 46 | } 47 | 48 | [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:kCellID]; 49 | [self.tableView registerNib:[UINib nibWithNibName:@"Style1TableViewHeaderView" bundle:nil] forHeaderFooterViewReuseIdentifier:kSectionHeaderID]; 50 | 51 | [self refreshRightBarButtonText]; 52 | } 53 | 54 | - (IBAction)rightButtonClick:(id)sender { 55 | if (_rightBarButtonExpandAllFlag) { 56 | [self expandAllSections]; 57 | } else { 58 | [self collapseAllSections]; 59 | } 60 | _rightBarButtonExpandAllFlag = !_rightBarButtonExpandAllFlag; 61 | [self refreshRightBarButtonText]; 62 | } 63 | 64 | - (void)refreshRightBarButtonText { 65 | [_rightBarButton setTitle:_rightBarButtonExpandAllFlag ? @"Expand All" : @"Collapse All"]; 66 | } 67 | 68 | #pragma mark - 69 | #pragma mark UITableView DataSource 70 | 71 | - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section { 72 | return kSectionHeaderHeight; 73 | } 74 | 75 | - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { 76 | UITableViewCell *cell = [self.tableView dequeueReusableCellWithIdentifier:kCellID forIndexPath:indexPath]; 77 | 78 | NSString *text = [self.sections[indexPath.section] objectAtIndex:indexPath.row]; 79 | cell.textLabel.text = text; 80 | 81 | return cell; 82 | } 83 | 84 | - (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section { 85 | Style1TableViewHeaderView *headerView = [self.tableView dequeueReusableHeaderFooterViewWithIdentifier:kSectionHeaderID]; 86 | 87 | [self setupCollapsableSection:headerView sectionIndex:section]; 88 | 89 | MGCollapsableTableViewSectionSource *sectionSource = self.sections[section]; 90 | 91 | headerView.headerTextLabel.text = sectionSource.sectionInfo; 92 | headerView.tableViewSectionCollapsed = sectionSource.collapsed; 93 | 94 | return headerView; 95 | } 96 | 97 | - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { 98 | return kCellHeight; 99 | } 100 | 101 | @end 102 | -------------------------------------------------------------------------------- /MGCollapsableTableView/Style1/Style1TableViewHeaderView.xib: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 24 | 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 | -------------------------------------------------------------------------------- /MGCollapsableTableView/Base/MGCollapsableTableViewController.m: -------------------------------------------------------------------------------- 1 | // 2 | // MGCollapsableTableViewController.m 3 | // MGCollapsableTableView 4 | // 5 | // Created by Mgen on 15/11/10. 6 | // Copyright © 2015 Mgen. All rights reserved. 7 | // https://github.com/mgenware/MGCollapsableTableView 8 | // 9 | 10 | #import "MGCollapsableTableViewController.h" 11 | #import "UITableView+VisibleSections.h" 12 | 13 | @interface MGCollapsableTableViewController () 14 | { 15 | } 16 | @end 17 | 18 | @implementation MGCollapsableTableViewController 19 | 20 | - (void)viewDidLoad { 21 | [super viewDidLoad]; 22 | } 23 | 24 | - (void)didReceiveMemoryWarning { 25 | [super didReceiveMemoryWarning]; 26 | // Dispose of any resources that can be recreated. 27 | } 28 | 29 | #pragma mark - 30 | #pragma mark Public Methods 31 | 32 | /** 33 | * Note to subclass: call this method in "- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section", this will delegate MGCollapsableTableViewSectionViewBase events to UITableViewController. 34 | */ 35 | - (id)setupCollapsableSection:(UIView *)sectionView sectionIndex:(NSInteger)sectionIndex { 36 | 37 | NSAssert(sectionView, @"sectionView cannot be nil"); 38 | sectionView.delegate = self; 39 | sectionView.tag = sectionIndex; 40 | return sectionView; 41 | } 42 | 43 | /** 44 | * Collapse all section headers. 45 | */ 46 | - (void)collapseAllSections { 47 | [self batchSetSectionState:YES]; 48 | } 49 | 50 | /** 51 | * Expand all section headers. 52 | */ 53 | - (void)expandAllSections { 54 | [self batchSetSectionState:NO]; 55 | } 56 | 57 | - (void)collapseSection:(NSUInteger)section { 58 | [self setSectionState:section collapsed:YES]; 59 | } 60 | 61 | - (void)expandSection:(NSUInteger)section { 62 | [self setSectionState:section collapsed:NO]; 63 | } 64 | 65 | #pragma mark - 66 | #pragma mark Internal Methods 67 | 68 | - (void)setSectionState:(NSUInteger)section collapsed:(BOOL)collapsed { 69 | [self.tableView beginUpdates]; 70 | [self setSectionState:section isCollapsed:collapsed]; 71 | [self.tableView reloadSections:[[NSIndexSet alloc] initWithIndex:section] withRowAnimation:UITableViewRowAnimationFade]; 72 | [self.tableView endUpdates]; 73 | } 74 | 75 | - (void)batchSetSectionState:(BOOL)collapsed { 76 | [self.tableView beginUpdates]; 77 | for (int i = 0; i < [self.tableView numberOfSections]; i++) { 78 | [self setSectionState:i isCollapsed:collapsed]; 79 | } 80 | [self reloadVisibleSections]; 81 | [self.tableView endUpdates]; 82 | } 83 | 84 | /** 85 | * Returns an array of all NSIndexPath objects from a section index 86 | */ 87 | - (NSArray *)allIndexPathsFromSection:(NSInteger)section { 88 | NSInteger numOfRows = [self.sections[section] rows].count; 89 | NSMutableArray *indexPaths = [NSMutableArray array]; 90 | for (int i = 0; i < numOfRows; i++) { 91 | [indexPaths addObject:[NSIndexPath indexPathForRow:i inSection:section]]; 92 | } 93 | return indexPaths; 94 | } 95 | 96 | /** 97 | * Returns section index from a section view. 98 | */ 99 | - (NSInteger)collapsableSectionIndexFromSectionView:(UIView *)sectionView { 100 | NSAssert(sectionView, @"sectionView cannot be nil"); 101 | return sectionView.tag; 102 | } 103 | 104 | /** 105 | * Reloads all visible sections in UITableView. 106 | */ 107 | - (void)reloadVisibleSections { 108 | NSMutableIndexSet *visibleSections = [[NSMutableIndexSet alloc] init]; 109 | NSArray *sectionArray = [self.tableView indexesOfVisibleSections]; 110 | for (NSNumber *index in sectionArray) { 111 | [visibleSections addIndex:[index unsignedIntegerValue]]; 112 | } 113 | 114 | [self.tableView reloadSections:visibleSections withRowAnimation:UITableViewRowAnimationFade]; 115 | } 116 | 117 | /** 118 | * This will set collapsed property on internal section data object(MGCollapsableTableViewSectionSource) and update UITableView section. 119 | */ 120 | - (void)setSectionState:(NSUInteger)section isCollapsed:(BOOL)isCollapsed { 121 | MGCollapsableTableViewSectionSource *sectionSource = _sections[section]; 122 | if (sectionSource.collapsed == isCollapsed) { 123 | return; 124 | } 125 | 126 | NSArray *indexPaths = [self allIndexPathsFromSection:section]; 127 | sectionSource.collapsed = isCollapsed; 128 | 129 | if (isCollapsed) { 130 | [self.tableView deleteRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationTop]; 131 | } else { 132 | [self.tableView insertRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationTop]; 133 | } 134 | } 135 | 136 | #pragma mark - 137 | #pragma mark UITableView DataSource 138 | 139 | - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { 140 | NSAssert(_sections, @"sections cannot be nil"); 141 | 142 | return _sections.count; 143 | } 144 | 145 | - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { 146 | MGCollapsableTableViewSectionSource *sectionSource = _sections[section]; 147 | if (sectionSource.collapsed) { 148 | return 0; 149 | } 150 | return sectionSource.rows.count; 151 | } 152 | 153 | #pragma mark - 154 | #pragma mark MGCollapsableTableViewSectionBaseDelegate 155 | 156 | - (void)collapseableSection:(id)sectionView isCollapsed:(BOOL)isCollapsed { 157 | NSInteger sectionIndex = [self collapsableSectionIndexFromSectionView:sectionView]; 158 | 159 | [self.tableView beginUpdates]; 160 | [self setSectionState:sectionIndex isCollapsed:isCollapsed]; 161 | [self.tableView endUpdates]; 162 | } 163 | 164 | @end 165 | -------------------------------------------------------------------------------- /MGCollapsableTableView/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 | 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 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | -------------------------------------------------------------------------------- /MGCollapsableTableView.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 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