3DTouch - iOS新特性
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 UIApplicationShortcutItemIconFile UIApplicationShortcutIcon *icon1 = [UIApplicationShortcutIcon iconWithTemplateImageName:@"icon1"]; UIApplicationShortcutIcon *icon2 = [UIApplicationShortcutIcon iconWithTemplateImageName:@"icon2"]; UIApplicationShortcutIcon *icon3 = [UIApplicationShortcutIcon iconWithTemplateImageName:@"icon3"]; //创建快捷item的userinfo UIApplicationShortcutItemUserInfo NSDictionary *info1 = @{@"url":@"url1"}; NSDictionary *info2 = @{@"url":@"url2"}; NSDictionary *info3 = @{@"url":@"url3"}; //创建ShortcutItem UIMutableApplicationShortcutItem *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>)previewingContext commitViewController:(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UIPreviewAction UIPreviewAction *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!
注:本文著作权归作者,由demo大师发表,拒绝转载,转载需要作者授权