在UITableViewCell Objective C Code上进行3D Touch Peek和Pop。 （强制触摸）

我需要使用Force Touch在Objective C中的UITableViewCell上启用Peek And Popfunction。 并且还需要在默认邮件应用程序的窥视视图下显示一些操作。 我是iOS新手，请帮助我到达那里。

Answer 1

TableViewCell上的Peek和Pop效果以及带动作的Collection View Cell

1）您应该将调用者viewController类作为UIViewControllerPreviewing Delegate来处理

@interface MyTableViewController（）

2）创建一个@property来存储信息。

 @property (nonatomic, strong) id previewingContext; 

3）在ViewDidLoad中调用forceTouchIntialize方法

 - (void)viewDidLoad { [super viewDidLoad]; [self forceTochIntialize]; } 

4）检查强制触摸可用或不可用

 -(void)forceTouchIntialize{ if ([self isForceTouchAvailable]) { self.previewingContext = [self registerForPreviewingWithDelegate:self sourceView:self.view]; } } - (BOOL)isForceTouchAvailable { BOOL isForceTouchAvailable = NO; if ([self.traitCollection respondsToSelector:@selector(forceTouchCapability)]) { isForceTouchAvailable = self.traitCollection.forceTouchCapability == UIForceTouchCapabilityAvailable; } return isForceTouchAvailable; } 

5）指定视图控制器我们要预览的内容（FOR PEEK）

 - (UIViewController *)previewingContext:(id )previewingContext viewControllerForLocation:(CGPoint)location{ CGPoint cellPostion = [yourTableView convertPoint:location fromView:self.view]; NSIndexPath *path = yourTableView indexPathForRowAtPoint:cellPostion]; if (path) { UITableViewCell *tableCell = [yourTableView cellForRowAtIndexPath:path]; //Pushing to a nib File PushViewController *previewController = [[PushViewController alloc] initWithNibName:@"PushViewController" bundle:nil]; //To Pass data to Preview ViewController // id temp = [yourDataArray objectAtIndex:path.row]; // PushViewController.anyObject=temp; previewingContext.sourceRect = [self.view convertRect:tableCell.frame fromView: yourTableView ]; return previewController; } return nil; } 

6）深压机中的POP（FOR POP）

 -(void)previewingContext:(id )previewingContext commitViewController: (UIViewController *)viewControllerToCommit { [self.navigationController showViewController:viewControllerToCommit sender:nil]; } 

7）当控制器看到并向上滑动时，如果要添加删除等按钮，则将此方法添加到previewViewContrller中（在此示例中为“PushViewController”）

 - (NSArray *)previewActionItems { UIPreviewAction *previewAction1 = [UIPreviewAction actionWithTitle:@"delete" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction *action, UIViewController *previewViewController){ }]; UIPreviewAction *previewAction2 = [UIPreviewAction actionWithTitle:@"archive" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction *action, UIViewController *previewViewController){ }]; return @[previewAction1,previewAction2]; }