概述

详细

6s和6s plus之后特有效果，对着应用图标用力按会触发3DTouch .

一、程序实现

第一步 : 3DTouch 设备支持检测：

检测当前的设备是否支持3DTouch

//  在iOS9中有一个新的枚举typedef NS_ENUM(NSInteger, UIForceTouchCapability) {  UIForceTouchCapabilityUnknown        = 0,  // 未知的支持属性UIForceTouchCapabilityUnavailable    = 1,  // 不支持UIForceTouchCapabilityAvailable      = 2 // 支持};

一般我们都在每个ViewController的生命周期中这样做：

定义一个是否设备支持的BOOL值属性

@property (nonatomic , assign) BOOL support3DTouch;

在生命周期函数中检测支持与否

  - (void)viewWillAppear:(BOOL)animated {  [super viewWillAppear:animated];  //检测当前是否支持3DTouch  self.support3DTouch = [self support3DTouch];  }

在生命周期外检测支持与否（因为有可能出了生命周期函数而发生了变化）

  - (void)traitCollectionDidChange:(nullable UITraitCollection *)previousTraitCollection NS_AVAILABLE_IOS(8_0) {     self.support3DTouch = [self support3DTouch];  }

检测是否支持3DTouch的方法

 - (BOOL)support3DTouch  {  // 如果开启了3D touch  if (self.traitCollection.forceTouchCapability == UIForceTouchCapabilityAvailable)  {  return YES;  }  return NO;  }  }

第二步 : 配置快捷视图列表

创建快捷视图列表有两种方法:

1，一种是编辑info.plist文件中的UIApplicationShortcutItems,

通过可视化的界面添加键值对直接配置info.plist

2，另一种是使用代码在工程中加入items

在工程的 AppDelegate.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];self.window.rootViewController = [[UINavigationController alloc] initWithRootViewController:[[HomeViewController alloc] init]];[self.window makeKeyAndVisible];//  代码创建快捷视图列表的方法，[self create3DTouchShotItems];return YES;
}

代码创建快捷视图列表的方法:

- (void)create3DTouchShotItems {//创建快捷item的icon UIApplicationShortcutItemIconFileUIApplicationShortcutIcon *icon1 = [UIApplicationShortcutIcon iconWithTemplateImageName:@"icon1"];UIApplicationShortcutIcon *icon2 = [UIApplicationShortcutIcon iconWithTemplateImageName:@"icon2"];UIApplicationShortcutIcon *icon3 = [UIApplicationShortcutIcon iconWithTemplateImageName:@"icon3"];//创建快捷item的userinfo UIApplicationShortcutItemUserInfoNSDictionary *info1 = @{@"url":@"url1"};NSDictionary *info2 = @{@"url":@"url2"};NSDictionary *info3 = @{@"url":@"url3"};//创建ShortcutItemUIMutableApplicationShortcutItem *item1 = [[UIMutableApplicationShortcutItem alloc]initWithType:@"XS_3DTocuh_1" localizedTitle:@"扫一扫" localizedSubtitle:@"" icon:icon1 userInfo:info1];UIMutableApplicationShortcutItem *item2 = [[UIMutableApplicationShortcutItem alloc]initWithType:@"XS_3DTocuh_2" localizedTitle:@"smile" localizedSubtitle:@"微笑面对生活" icon:icon2 userInfo:info2];UIMutableApplicationShortcutItem *item3 = [[UIMutableApplicationShortcutItem alloc]initWithType:@"XS_3DTocuh_3" localizedTitle:@"购物" localizedSubtitle:@"Shopping" icon:icon3 userInfo:info3];NSArray *items = @[item1, item2, item3];[UIApplication sharedApplication].shortcutItems = items;
}

第三步 : 给列表视图中的cell注册 3DTouch 事件

• 1，首先，在首页当前控制器里遵守UIViewControllerPreviewingDelegate协议

• UIViewControllerPreviewingDelegate

• 2，在注册前先判断是否设备支持(也就是第一步)

• 3，注册: [self registerForPreviewingWithDelegate:self sourceView:cell];

 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {ZLTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"ZLTableViewCell"];if (cell == nil) {cell = [ZLTableViewCell cellWithTableView:tableView];}cell.dataFrame = self.dataSource[indexPath.row];//给cell注册代理，使其支持3DTouch手势if (self.support3DTouch) {[self registerForPreviewingWithDelegate:self sourceView:cell];}return cell;
}

第四步: 完成UIViewControllerPreviewingDelegate 协议回调，实现Peek Pop

在首页当前控制器里,

#pragma mark - 3DTouch  UIViewControllerPreviewingDelegate

Peek 实现代码：

此方法是轻按控件时，跳出peek的代理方法

- (UIViewController *)previewingContext:(id<UIViewControllerPreviewing>)previewingContext viewControllerForLocation:(CGPoint)location {//防止重复加入if ([self.presentedViewController isKindOfClass:[ZLPeekViewController class]]){return nil;}else{ZLTableViewCell *cell = (ZLTableViewCell *)previewingContext.sourceView;ZLCellData * cellData = cell.dataFrame.cellData;ZLPeekViewController *peekViewController = [[ZLPeekViewController alloc] init];peekViewController.cellData = cellData;peekViewController.delegate = self;return peekViewController;}
}

Pop 代码:

此方法是重按peek时，跳入pop的代理方法

- (void)previewingContext:(id<UIViewControllerPreviewing>)previewingContextcommitViewController:(UIViewController *)viewControllerToCommit {ZLTableViewCell *cell = (ZLTableViewCell *)previewingContext.sourceView;ZLCellData * cellData = cell.dataFrame.cellData;ZLPopViewController *popViewController = [[ZLPopViewController alloc] init];popViewController.cellData = cellData;// 以prentViewController的形式展现[self showViewController:popViewController sender:self];// 以push的形势展现
//    [self.navigationController pushViewController:popViewController animated:YES];
}

第五步 : 在Peek状态下向上滑动出现的按钮配置方法

在 ZLPeekViewController.m 里, 实现 - (NSArray> *)previewActionItems 回调方法

#pragma mark - Preview Actions
- (NSArray<id<UIPreviewActionItem>> *)previewActionItems {// 生成UIPreviewActionUIPreviewAction *action1 = [UIPreviewAction actionWithTitle:@"事件 1" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {NSLog(@"Action 1 selected");[self.delegate pushToPopViewControllerWithCellData:self.cellData];}];UIPreviewAction *action2 = [UIPreviewAction actionWithTitle:@"事件 2" style:UIPreviewActionStyleDestructive handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {NSLog(@"Action 2 selected");}];UIPreviewAction *action3 = [UIPreviewAction actionWithTitle:@"事件 3" style:UIPreviewActionStyleSelected handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {NSLog(@"Action 3 selected");}];UIPreviewAction *tap1 = [UIPreviewAction actionWithTitle:@"按钮 1" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {NSLog(@"tap 1 selected");}];UIPreviewAction *tap2 = [UIPreviewAction actionWithTitle:@"按钮 2" style:UIPreviewActionStyleDestructive handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {NSLog(@"tap 2 selected");}];UIPreviewAction *tap3 = [UIPreviewAction actionWithTitle:@"按钮 3" style:UIPreviewActionStyleSelected handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {NSLog(@"tap 3 selected");}];NSArray *actions = @[action1, action2, action3];NSArray *taps = @[tap1, tap2, tap3];UIPreviewActionGroup *group1 = [UIPreviewActionGroup actionGroupWithTitle:@"一组事件" style:UIPreviewActionStyleDefault actions:actions];UIPreviewActionGroup *group2 = [UIPreviewActionGroup actionGroupWithTitle:@"一组按钮" style:UIPreviewActionStyleDefault actions:taps];NSArray *group = @[group1,group2];//当然你也可以返回三个单独的action对象的数组，而不是group，具体效果，可以自己试一下return group;
}

二、运行效果与文件截图

1、运行效果截图:

2、文件截图：

三、其他补充

界面性问题可以根据自己项目需求调整即可, 具体可参考代码, 项目能够直接运行!