iOS3DTouch功能实现

1:3DTouch功能

      自从Iphone6s发布以来，最炫的功能就是3DTouch,这项技术，不仅极大的增加了快捷入口的方便的程度，其产品本身带来的动感交互体验也是非常带感，在这里记录一下其基本功能的实现

2:具体实现：点击应用图标实现3DTouch功能

      （1:在AppDelegate中实现方法

//icon图标3DTouch//动态添加//还可以通过plist文件进行静态添加-(void)setup3DTouch:(UIApplication *)application{            UIApplicationShortcutIcon * cameraIcon = [UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeCompose];        UIApplicationShortcutItem * cameraItem = [[UIApplicationShortcutItem alloc] initWithType:@"ONE" localizedTitle:@"分享" localizedSubtitle:@"" icon:cameraIcon userInfo:nil];        UIApplicationShortcutIcon * shareIcon = [UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeShare];    UIApplicationShortcutItem * shareItem = [[UIApplicationShortcutItem alloc] initWithType:@"TWO" localizedTitle:@"拍照" localizedSubtitle:@"" icon:shareIcon userInfo:nil];        //将items添加到app图标    application.shortcutItems = @[cameraItem,shareItem];    }

       (2:实现代理方法

//同过绑定的标签type来实现具体的代码-(void)application:(UIApplication *)application performActionForShortcutItem:(nonnull UIApplicationShortcutItem *)shortcutItem completionHandler:(nonnull void (^)(BOOL))completionHandler{        UINavigationController * nav = (UINavigationController *)self.window.rootViewController;        if ([shortcutItem.type isEqualToString:@"ONE"]) {                UIViewController * vc = [[UIViewController alloc] init];                vc.title = @"ONE";                vc.view.backgroundColor = [UIColor redColor];                [nav pushViewController:vc animated:YES];            }else if ([shortcutItem.type isEqualToString:@"TWO"]){                UIViewController * vc = [[UIViewController alloc] init];                vc.title = @"TWO";                vc.view.backgroundColor = [UIColor grayColor];                [nav pushViewController:vc animated:YES];            }}

到这里就可以实现简单的3DTouch功能

3:具体实现:应用内部实现3DTouch 如：点击TableView 的cell 实现3DTouch功能

      （1:建立一个TableView 表格,如

      (2: 添加 UIViewControllerPreviewingDelegate代理

      (3:实现代理方法

//UIViewControllerPreviewingDelegate//这个方法的实现就可以实现弹出预览界面的效果了-(UIViewController *)previewingContext:(id<UIViewControllerPreviewing>)previewingContext viewControllerForLocation:(CGPoint)location{        NSIndexPath * index = [self.myTable indexPathForCell:(UITableViewCell *)[previewingContext sourceView]];        NextViewController * NVC = [[NextViewController alloc] init];        CGRect rect = CGRectMake(0, 0, previewingContext.sourceView.frame.size.width, previewingContext.sourceView.frame.size.height);        previewingContext.sourceRect = rect;        return NVC;}

在NextViewController中也实现相同的代理方法,实现弹出view下方的选项功能

//选项功能-(NSArray<id<UIPreviewActionItem>> *)previewActionItems{        UIPreviewAction * action0 = [UIPreviewAction actionWithTitle:@"action0" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {                NSLog(@"%s, line = %d, action0 = %@, previewViewController = %@", __FUNCTION__, __LINE__, action, previewViewController);                    }];        UIPreviewAction *action1 = [UIPreviewAction actionWithTitle:@"action1" style:UIPreviewActionStyleDestructive handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {        NSLog(@"%s, line = %d, action1 = %@, previewViewController = %@", __FUNCTION__, __LINE__, action, previewViewController);    }];        UIPreviewAction *action2 = [UIPreviewAction actionWithTitle:@"action2" style:UIPreviewActionStyleSelected handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {        NSLog(@"%s, line = %d, action2 = %@, previewViewController = %@", __FUNCTION__, __LINE__, action, previewViewController);    }];    UIPreviewAction *action3 = [UIPreviewAction actionWithTitle:@"action3" style:UIPreviewActionStyleSelected handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {        NSLog(@"%s, line = %d, action2 = %@, previewViewController = %@", __FUNCTION__, __LINE__, action, previewViewController);    }];            //改按钮是一个数组，点击改数组时，跳到数组里里面的按钮    UIPreviewActionGroup * actionGroup = [UIPreviewActionGroup actionGroupWithTitle:@"actionGroup" style:UIPreviewActionStyleSelected actions:@[action2,action3]];    //直接返回数组    return @[action0,action1,actionGroup];    }

代码截止这里用力按压cell，接回实现弹出一级界面，效果图

接下来实现在上一个力道之上再用力按压弹出的view ,跳转至另一个视图控制器的3DTouch二级界面，实现如下的代理方法

//2:在第一个效果的基础上，在继续用力按下去，就会push预览界面了-(void)previewingContext:(id<UIViewControllerPreviewing>)previewingContext commitViewController:(UIViewController *)viewControllerToCommit{    //获取点击cell时的索引，预览界面的原始图是cell,    NSIndexPath * index = [self.myTable indexPathForCell:(UITableViewCell *)[previewingContext sourceView]];        viewControllerToCommit.title = self.dataSouce[index.row];        [self showViewController:viewControllerToCommit sender:nil];    }

效果图：

到这里3DTouch功能基本实现完成。