3D Touch
3D Touch的触控技术，被苹果称为新一代多点触控技术。其实，就是此前在Apple Watch上采用的Force Touch，屏幕可感应不同的感压力度触控。
3D Touch的三大模块
1、Home Screen Quick Actions
通过主屏幕的应用Icon，我们可以用3D Touch呼出一个菜单，进行快速定位应用功能模块相关功能的开发。
2、peek and pop
这个功能是一套全新的用户交互机制，在使用3D Touch时，ViewController中会有如下三个交互阶段：
（1）提示用户这里有3D Touch的交互，会使交互控件周围模糊
（2）继续深按，会出现预览视图
（3）通过视图上的交互控件进行进一步交互
3、Force Properties
iOS9为我们提供了一个新的交互参数:力度。我们可以检测某一交互的力度值，来做相应的交互处理。例如，我们可以通过力度来控制快进的快慢，音量增加的快慢等。
实现
Home Screen Quick Actions
1)系统限制每个App最多能够显示4个Action Item，其中包括静态方式和动态方式进行创建的；
2)如果静态和动态方式同时使用的时候，给UIApplication的shortcutItems赋值的时候不会覆盖
1、静态标签(在Info.plist文件中进行声明)
在info.plist文件中添加如下键值
先添加了一个UIApplicationShortcutItems的数组，这个数组中添加的元素就是对应的静态标签，在每个标签中我们需要添加一些设置的键值：
必填项（下面两个键值是必须设置的）：
UIApplicationShortcutItemType 这个键值设置一个快捷通道类型的字符串UIApplicationShortcutItemTitle 这个键值设置标签的标题
选填项（下面这些键值不是必须设置的） ：
UIApplicationShortcutItemSubtitle 设置标签的副标题
UIApplicationShortcutItemIconType 设置标签Icon类型
UIApplicationShortcutItemIconFile 设置标签的Icon文件
UIApplicationShortcutItemUserInfo 设置信息字典(用于传值)
2、动态标签(以动态方式创建)
这里在应用启动的时候调用，可以根据需求动态添加
# define kShortcutItemTypeNameSetting @"zxl.game.setting"
# define kShortcutItemTypeNameSahre @"zxl.game.share"
- (BOOL)touch_application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// 分享
NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary];
NSString *appName = [infoDictionary objectForKey:@"CFBundleDisplayName"];
NSString * shareStr = [NSString stringWithFormat:@"分享“%@”",appName];
UIApplicationShortcutIcon * shareIcon = [UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeShare];
UIApplicationShortcutItem * shareItem = [[UIApplicationShortcutItem alloc]initWithType:kShortcutItemTypeNameSahre localizedTitle:shareStr localizedSubtitle:@"" icon:shareIcon userInfo:@{@"feel":@"今天风很大,标识很冷。"}];
// 设置
UIApplicationShortcutIcon * settingIcon = [UIApplicationShortcutIcon iconWithTemplateImageName:@"setting"];
UIApplicationShortcutItem * settingItem = [[UIApplicationShortcutItem alloc]initWithType:kShortcutItemTypeNameSetting localizedTitle:@"设置" localizedSubtitle:@"文字设置" icon:settingIcon userInfo:nil];
// 活动
UIApplicationShortcutIcon * activityIcon = [UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeHome];
UIMutableApplicationShortcutItem * mutableItem = [[UIMutableApplicationShortcutItem alloc]initWithType:kShortcutItemTypeNameActivity localizedTitle:@"活动" localizedSubtitle:@"" icon:activityIcon userInfo:@{}];
NSArray * items = [NSArray arrayWithObjects:settingItem, shareItem, mutableItem, nil];
// 添加到应用中 1-每次应用启动 不会覆盖
NSArray * existingItems = [UIApplication sharedApplication].shortcutItems;
NSArray * updatedItems = [existingItems arrayByAddingObjectsFromArray:items];
[UIApplication sharedApplication].shortcutItems = items;
return YES;
}
响应回调
- (void)touch_application:(UIApplication *)application performActionForShortcutItem:(UIApplicationShortcutItem *)shortcutItem completionHandler:(void (^)(BOOL))completionHandler{
customLog(@"Touch At --- %@",shortcutItem.type);
// 确定根视图是window->UITabBarController->BaseNavigationController
BaseNavigationController * navigation =
[self.window.rootViewController.childViewControllers firstObject];
// 设置
if ([shortcutItem.type isEqualToString:kShortcutItemTypeNameSetting]) {
ConfigViewController * configVC = [ConfigViewController new];
[navigation pushViewController:configVC animated:YES];
}
// 分享
if ([shortcutItem.type isEqualToString:kShortcutItemTypeNameSahre]) {
// 分享内容
NSString *info = @"分享，作者：ZXL";
UIImage *image=[UIImage imageNamed:kIconNameApp];
NSURL *url = [NSURL URLWithString:@"https://itunes.apple.com/cn/app/%E5%BE%AE%E4%BF%A1/id414478124?mt="];
NSArray *activities=@[info, image, url];
UIActivity * activity = [[UIActivity alloc]init];
UIActivityViewController * activityController = [[UIActivityViewController alloc]initWithActivityItems:activities applicationActivities:@[activity]];
// 关闭系统的一些Activity类型,不需要的功能关掉。
activityController.excludedActivityTypes = @[UIActivityTypePostToVimeo];
//if iPhone
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
// 设置RootViewController
UIViewController * VC = [UIViewController new];
self.window.rootViewController = VC;
self.window.backgroundColor = [UIColor orangeColor];
[VC presentViewController:activityController animated:YES completion:nil];
}
//if iPad
else {
// 可以添加到UIPopoverController中的contentViewController
//UIBarButtonItem *shareBarButtonItem = self.navigationItem.leftBarButtonItem;
//UIPopoverController *pop = [[UIPopoverController alloc] initWithContentViewController:controller];
//[pop presentPopoverFromBarButtonItem:shareBarButtonItem permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
}
// 回调
activityController.completionWithItemsHandler = ^(UIActivityType _Nullable activityType, BOOL completed, NSArray * _Nullable returnedItems, NSError * _Nullable activityError) {
// 取消 -- completed=NO 分享完成-好的 --- completed=YES
if (completed) {
customLog(@"completed --- %@",activityType);
}
else{
customLog(@"completed --- %@",activityType);
}
};
}
}
peek and pop
注册预览视图的代理和来源视图
// Registers a view controller to participate with 3D Touch preview (peek) and commit (pop)
if (self.traitCollection.forceTouchCapability == UIForceTouchCapabilityAvailable) {
[self registerForPreviewingWithDelegate:self sourceView:self.button];
}
轻压的时候调用
- (UIViewController *)previewingContext:(id<UIViewControllerPreviewing>)previewingContext viewControllerForLocation:(CGPoint)location{*
PreviewViewController * previewVC = [[PreviewViewController alloc]init];
previewVC.view.backgroundColor = [UIColor whiteColor];
return previewVC;
}
继续重压显示下一个视图
- (void)previewingContext:(id <UIViewControllerPreviewing>)previewingContext commitViewController:(UIViewController *)viewControllerToCommit{
viewControllerToCommit.view.backgroundColor = [UIColor orangeColor];
[self showViewController:viewControllerToCommit sender:self];
}
pop功能-在PreviewViewController中实现方法
- (NSArray<id<UIPreviewActionItem>> *)previewActionItems{
UIPreviewAction * touchAction = [UIPreviewAction actionWithTitle:@"3D Touch" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction ]* _Nonnull action, UIViewController * _Nonnull previewViewController) {
UIAlertController * alertVC = [UIAlertController alertControllerWithTitle:@"提示" message:@"点击了 3D Touch" preferredStyle:UIAlertControllerStyleActionSheet];
UIAlertAction * cancelAction = [UIAlertAction actionWithTitle:@"好的" style:UIAlertActionStyleCancel handler:^(UIAlertAction ]* _Nonnull action) {
}];
[alertVC addAction:cancelAction];
[[UIApplication sharedApplication].keyWindow.rootViewController presentViewController:alertVC animated:YES completion:nil];
}];
return @[touchAction];
}
在显示预览视图时向上滑动出现的视图UIPreviewAction，然后点击按钮出现弹框。
Force Properties
在iOS 9中，UITouch类支持3D触摸应用程序定制实现了两个新的属性：force 和 maximumpossibleforce 。
// Force of the touch, where 1.0 represents the force of an average touch
@property(nonatomic,readonly) CGFloat force NS_AVAILABLE_IOS(9_0);
// Maximum possible force with this input mechanism
@property(nonatomic,readonly) CGFloat maximumPossibleForce NS_AVAILABLE_IOS(9_0);
#pragma mark 获取压力的大小非常简单，我们可以通过UITouch类中的一些属性来完成
//我这里 只做了一个简单的 压力感应示例，如需更复杂的效果，可以自行编制。
- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
//宣告一个UITouch的指标来存放事件触发时所撷取到的状态
UITouch *touch = [[event allTouches] anyObject];
self.forceLabel.text = [NSString stringWithFormat:@"当前压力值为: %f",touch.force];
customLog(@"最大压力值 %f",touch.maximumPossibleForce);// 最大压力值 6.666667
if (touch.force>0.2)
{
self.forceLabel.font = [UIFont systemFontOfSize:20*touch.force];
self.forceLabel.textColor = RGBColor(255*touch.force/6.5, 0, 0);
}
}
参考:
iOS开发之3D Touch
UIActivity View Controller
iOS9 3D Touch 标签菜单 peek and pop force 压力触控 功能开发高级版教程
