跟着官方文档学习3D Touch

<key>UIApplicationShortcutItems</key>
    <array>
        <dict>
            <key>UIApplicationShortcutItemIconFile</key>
            <string>open-favorites</string>
            <key>UIApplicationShortcutItemTitle</key>
            <string>Favorites</string>
            <key>UIApplicationShortcutItemType</key>
            <string>com.mycompany.myapp.openfavorites</string>
            <key>UIApplicationShortcutItemUserInfo</key>
            <dict>
                <key>key1</key>
                <string>value1</string>
            </dict>
        </dict>
        <dict>
            <key>UIApplicationShortcutItemIconType</key>
            <string>UIApplicationShortcutIconTypeCompose</string>
            <key>UIApplicationShortcutItemTitle</key>
            <string>New Message</string>
            <key>UIApplicationShortcutItemType</key>
            <string>com.mycompany.myapp.newmessage</string>
            <key>UIApplicationShortcutItemUserInfo</key>
            <dict>
                <key>key2</key>
                <string>value2</string>
            </dict>
        </dict>
    </array>

// delegate.m文件中实现以下方法
// 作用：点击3Dtouch菜单上的某个item跳转到指定界面
- (void)application:(UIApplication *)application performActionForShortcutItem:(UIApplicationShortcutItem *)shortcutItem completionHandler:(void (^)(BOOL))completionHandler
{
    if ([shortcutItem.type isEqualToString:@"0"]) {
        NSLog(@"点击了哈哈");
    } else if ([shortcutItem.type isEqualToString:@"1"]) {
        NSLog(@"点击了呵呵");
    } else if ([shortcutItem.type isEqualToString:@"2"]) {
        NSLog(@"点击了呦呦");
    } else {
        NSLog(@"点击了么么");
        
    }
}

// 以下是全部代码，且都是在delegate.m文件中实现的
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
  
    //使用系统提供的ShortcutIcon类型
    UIApplicationShortcutIcon *addOpportunityIcon = [UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeAdd];
    UIApplicationShortcutItem *addOpportunityItem = [[UIApplicationShortcutItem alloc] initWithType:@"addOpportunity" localizedTitle:@"添加机会" localizedSubtitle:nil icon:addOpportunityIcon userInfo:nil];
    
    UIApplicationShortcutIcon *bookMarkIcon = [UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeCompose];
    UIApplicationShortcutItem *bookMarkItem = [[UIApplicationShortcutItem alloc] initWithType:@"bookMark" localizedTitle:@"添加小记" localizedSubtitle:nil icon:bookMarkIcon userInfo:nil];
    
    UIApplicationShortcutIcon *searchGuestIcon = [UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeSearch];
    UIApplicationShortcutItem *searchGuestItem = [[UIApplicationShortcutItem alloc] initWithType:@"searchGuest" localizedTitle:@"搜索客户" localizedSubtitle:@"通过关键字搜索感兴趣客户" icon:searchGuestIcon userInfo:nil];
    
    //自定义ShortcutIcon
    // 如果设置了自定义的icon，那么系统自带的就不生效
    UIApplicationShortcutIcon *myGuestIcon = [UIApplicationShortcutIcon iconWithTemplateImageName:@"myGuestImage"];
    
    UIApplicationShortcutItem *myGuestItem = [[UIApplicationShortcutItem alloc] initWithType:@"myGuest" localizedTitle:@"我的客户" localizedSubtitle:nil icon:myGuestIcon userInfo:nil];
    
    [UIApplication sharedApplication].shortcutItems = @[addOpportunityItem,bookMarkItem,searchGuestItem,myGuestItem];
    
    return YES;
}

// 作用：点击快速启动项菜单上的某个快速启动项跳转到指定界面
- (void)application:(UIApplication *)application performActionForShortcutItem:(UIApplicationShortcutItem *)shortcutItem completionHandler:(void (^)(BOOL))completionHandler
{
// 方式一：type
    if ([shortcutItem.type isEqualToString:@"addOpportunity"]) {
        NSLog(@"点击了添加机会item");
    } else if ([shortcutItem.type isEqualToString:@"bookMark"]) {
        NSLog(@"点击了添加小记item");
    } else if ([shortcutItem.type isEqualToString:@"myGuest"]) {
        NSLog(@"点击了我的客户item");
    } else {
        NSLog(@"点击了搜索客户item");

    }

    // 方式二：title或者subtitle
    if ([shortcutItem.localizedTitle isEqualToString:@"添加机会"]) {
        NSLog(@"点击了添加机会item");
    } else if ([shortcutItem.localizedTitle isEqualToString:@"添加小记"]) {
        NSLog(@"点击了添加小记item");
    } else if ([shortcutItem.localizedTitle isEqualToString:@"我的客户"]) {
        NSLog(@"点击了我的客户item");
    } else {
        NSLog(@"点击了搜索客户item");
    }
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { 
    static NSString *cellID = @"cell"; 
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellID]; 
    if (!cell) { 
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellID]; 
    } 
    cell.textLabel.text = [NSString stringWithFormat:@"%ld",indexPath.row]; 
    // 检测3D Touch可用性
    if (self.traitCollection.forceTouchCapability == UIForceTouchCapabilityAvailable) { 
    [self registerForPreviewingWithDelegate:self sourceView:cell]; 
    } 
    return cell;
}

/**
   *previewingContext:被预览的视图控制器的内容对象
   *location：源视图的左边系上的触摸点的坐标位置
   *调用时间：进入peek预览阶段时会调用这个方法。
   *作用：返回一个配置好的以供预览的视图控制器。
   *需要的操作：把源视图坐标系上的点转换为当前控制器的视图上的点。
   *返回一个控制器。
*/
- (UIViewController *)previewingContext:(id<UIViewControllerPreviewing>)previewingContext
              viewControllerForLocation:(CGPoint)location
{
     //将触摸点的坐标转化为tableView坐标系上的坐标点
    CGFloat locationBaseTableView = [self.tableView convertPoint:location fromView:[previewingContext sourceView]]; 
    //根据触摸点获取触摸的cell的indexPath 
    NSIndexPath *indexPath = [self.tableView indexPathForRowAtPoint:location];
    // 根据indexPath对被peek的控制器进行配置 
    WSTableViewController *peekViewController =[[WSTableViewController alloc] initWithStyle:UITableViewStyleGrouped];
    peekViewController.model = self.models[indexPath.row];
    return peekViewController;
}
/** 
   *previewingContext：被预览的视图控制器的内容对象 == 上面代理方法中的previewingContext，内存中是同一个对象
   *viewControllerToCommit：被present（pop）的视图控制器 == 上面代理方法中返回的控制器，内存中是同一个对象
   *调用时间：pop阶段调用这个方法
   *作用：配置并且present一个commit（pop）视图控制器。
*/
- (void)previewingContext:(id<UIViewControllerPreviewing>)previewingContext
     commitViewController:(UIViewController *)viewControllerToCommit
{
    [self.navigationController pushViewController:viewControllerToCommit animated:YES];
}

- (NSArray<id<UIPreviewActionItem>> *)previewActionItems{

    UIPreviewAction *like = [UIPreviewAction actionWithTitle:@"喜欢" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
    NSLog(@"点击了喜欢");
}];

UIPreviewAction *comment = [UIPreviewAction actionWithTitle:@"评论" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
    NSLog(@"点击了评论");
}];

UIPreviewAction *complaint = [UIPreviewAction actionWithTitle:@"投诉" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
    NSLog(@"点击了投诉");
}];

    return @[like,comment,complaint];

/*! Trait environments expose a trait collection that describes their environment. */
@protocol UITraitEnvironment <NSObject>
@property (nonatomic, readonly) UITraitCollection *traitCollection NS_AVAILABLE_IOS(8_0);

/*! To be overridden as needed to provide custom behavior when the environment's traits change. */
- (void)traitCollectionDidChange:(nullable UITraitCollection *)previousTraitCollection NS_AVAILABLE_IOS(8_0);
@end

NS_CLASS_AVAILABLE_IOS(2_0) @interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusEnvironment>

NS_CLASS_AVAILABLE_IOS(2_0) @interface UIViewController : UIResponder <NSCoding, UIAppearanceContainer, UITraitEnvironment, UIContentContainer, UIFocusEnvironment>

- (void) traitCollectionDidChange: (UITraitCollection *) previousTraitCollection {
    [super traitCollectionDidChange: previousTraitCollection];
    if ((self.traitCollection.verticalSizeClass != previousTraitCollection.verticalSizeClass)
        || self.traitCollection.horizontalSizeClass != previousTraitCollection.horizontalSizeClass)) {
        // your custom implementation here
    }
}

typedef NS_ENUM(NSInteger, UIUserInterfaceIdiom) {
    UIUserInterfaceIdiomUnspecified = -1,
    UIUserInterfaceIdiomPhone NS_ENUM_AVAILABLE_IOS(3_2), // iPhone and iPod touch style UI
    UIUserInterfaceIdiomPad NS_ENUM_AVAILABLE_IOS(3_2), // iPad style UI
    UIUserInterfaceIdiomTV NS_ENUM_AVAILABLE_IOS(9_0), // Apple TV style UI
    UIUserInterfaceIdiomCarPlay NS_ENUM_AVAILABLE_IOS(9_0), // CarPlay style UI
};