3DTouch的开发教程

一、系统home界面弹出一个列表

#import "AppDelegate.h" #import "ViewController.h" @interface AppDelegate () @property (strong, nonatomic) UINavigationController *nav; @end @implementation AppDelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {     [self createIconTouch];          ViewController *VC = [[ViewController alloc]init];     VC.view.backgroundColor = [UIColor whiteColor];     VC.title = @"首页";     UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:VC];     [self.window setRootViewController:nav];     _nav = nav;          return YES; } - (void)createIconTouch {     /** 初始化图标*/     UIApplicationShortcutIcon *icon1 = [UIApplicationShortcutIcon iconWithTemplateImageName:@"图片名称一"];     UIApplicationShortcutIcon *icon2 = [UIApplicationShortcutIcon iconWithTemplateImageName:@"图片名称二"];          /** 初始化home界面弹出的item*/     UIMutableApplicationShortcutItem *item = [[UIMutableApplicationShortcutItem alloc]initWithType:@"类型一" localizedTitle:@"标题一" localizedSubtitle:@"副标题一" icon:icon1 userInfo:nil];     UIMutableApplicationShortcutItem *item1 = [[UIMutableApplicationShortcutItem alloc]initWithType:@"类型二" localizedTitle:@"标题二" localizedSubtitle:@"副标题二" icon:icon2 userInfo:nil];     NSArray *items = @[item,item1];     [UIApplication sharedApplication].shortcutItems = items; } - (void)application:(UIApplication *)application performActionForShortcutItem:(UIApplicationShortcutItem *)shortcutItem completionHandler:(void (^)(BOOL))completionHandler {     // react to shortcut item selections     NSLog(@"点击了 %@, 类型：%@", shortcutItem.localizedTitle, shortcutItem.type);     UIViewController *VC = [[UIViewController alloc]init];     VC.view.backgroundColor = [UIColor whiteColor];     VC.title = [NSString stringWithFormat:@"点击了 %@, 类型：%@", shortcutItem.localizedTitle, shortcutItem.type];     [self.nav pushViewController:VC animated:YES]; }

二、在界面内部使用3DTouch

#import "ViewController.h" #import "PreViewController.h" @interface ViewController ()<UITableViewDataSource, UITableViewDelegate, UIViewControllerPreviewingDelegate> @property (strong, nonatomic) UITableView *tableView; @property (strong, nonatomic) UILongPressGestureRecognizer *longPress; @end @implementation ViewController - (void)viewDidLoad {     [super viewDidLoad];     // Do any additional setup after loading the view, typically from a nib.     UILongPressGestureRecognizer *longPressGr = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressToDo)];     _longPress = longPressGr;     [self createTableView]; } #pragma mark- 初始化TableView - (void)createTableView {     _tableView = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height) style:UITableViewStylePlain];     _tableView.delegate = self;     _tableView.dataSource = self;     [self.view addSubview:_tableView]; } - (void)longPressToDo{} - (void)viewWillAppear:(BOOL)animated {     [super viewWillAppear:animated];     [self check3DTouch]; } #pragma mark- 检测页面是否支持3DTouch - (void)check3DTouch {     if (self.traitCollection.forceTouchCapability == UIForceTouchCapabilityAvailable)     {         [self registerForPreviewingWithDelegate:self sourceView:self.tableView];         NSLog(@"3D Touch 开启");         //长按停止         _longPress.enabled = NO;     }     else     {         _longPress.enabled = YES;     } } #pragma mark- UIViewControllerPreviewingDelegate - (UIViewController *)previewingContext:(id<UIViewControllerPreviewing>)previewingContext viewControllerForLocation:(CGPoint)location {     NSIndexPath *indexPath = [_tableView indexPathForRowAtPoint:location];     UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:indexPath];     /** 自定义一个控制器*/     PreViewController *vc = [[PreViewController alloc]init];     UILabel *label = [[UILabel alloc]initWithFrame:vc.view.frame];     label.backgroundColor = [UIColor cyanColor];     label.text = cell.textLabel.text;     vc.view = label;     return vc; } - (void)previewingContext:(id <UIViewControllerPreviewing>)previewingContext commitViewController:(UIViewController *)viewControllerToCommit {     [self showViewController:viewControllerToCommit sender:self]; } #pragma mark- UITableViewDataSource - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {     return 30; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {     NSString *cellID = @"cell";     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellID];     if (cell == nil)     {         cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellID];     }     cell.textLabel.text = [NSString stringWithFormat:@"第%ld行测试",indexPath.row];     return cell; } @end #import "PreViewController.h" @interface PreViewController () @end @implementation PreViewController - (void)viewDidLoad {     [super viewDidLoad];     // Do any additional setup after loading the view. } - (void)didReceiveMemoryWarning {     [super didReceiveMemoryWarning];     // Dispose of any resources that can be recreated. } - (NSArray<id<UIPreviewActionItem>> *)previewActionItems{          UIPreviewAction *p1 =[UIPreviewAction actionWithTitle:@"分享" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {                  NSLog(@"点击了分享");              }];          UIPreviewAction *p2 =[UIPreviewAction actionWithTitle:@"收藏" style:UIPreviewActionStyleDestructive handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {         NSLog(@"点击了收藏");     }];          NSArray *actions = @[p1,p2];     return actions; } @end