3DTouch目前在手机上有两种体现方式，一种是用力按下app的图片icon，会弹出选项菜单，就像电脑上的右键。一种是在应用内的界面上用力按下，弹出的预览界面。
接下来就以这两种效果分别说明如何使用3DTouch功能。
一、iocn按下效果
这里有两种方式实现：
1、通过plist文件静态设置
[objc]view plaincopy
UIApplicationShortcutItemUserInfo信息
UIApplicationShortcutItemIconFile图标名称
UIApplicationShortcutItemIconType图标类型
UIApplicationShortcutItemTitle标题
UIApplicationShortcutItemSubTitle副标题
然后在AppDelegate里面实现代理方法，通过绑定的标签type来实现具体代码。
[objc]view plaincopy
-(void)application:(UIApplication*)applicationperformActionForShortcutItem:(UIApplicationShortcutItem*)shortcutItemcompletionHandler:(void(^)(BOOL))completionHandler
{
UINavigationController*nav = (UINavigationController*)self.window.rootViewController;
if([shortcutItem.typeisEqualToString:@"ONE"]){
UIViewController*vc = [[UIViewControlleralloc]init];
vc.title=@"第一个";
vc.view.backgroundColor= [UIColorredColor];
[navpushViewController:vcanimated:YES];
}elseif([shortcutItem.typeisEqualToString:@"TWO"]){
UIViewController*vc = [[UIViewControlleralloc]init];
vc.title=@"第二个";
vc.view.backgroundColor= [UIColorgreenColor];
[navpushViewController:vcanimated:YES];
}
}
2、通过代码动态创建
首先在AppDelegate的didFinishLaunchingWithOptions里面初始化
[objc]view plaincopy
- (BOOL)application:(UIApplication*)applicationdidFinishLaunchingWithOptions:(NSDictionary*)launchOptions {
// Override point for customization after application launch.
self.window= [[UIWindowalloc]initWithFrame:[UIScreenmainScreen].bounds];
UINavigationController*nav = [[UINavigationControlleralloc]initWithRootViewController:[[ViewControlleralloc]init]];
self.window.rootViewController= nav;
[self.windowmakeKeyAndVisible];
[selfsetup3DTouch:application];
// [self setupSpotlight];
returnYES;
}
具体初始化方法
[objc]view plaincopy
- (void)setup3DTouch:(UIApplication*)application
{
/**
type 该item 唯一标识符
localizedTitle ：标题
localizedSubtitle：副标题
icon：icon图标 可以使用系统类型 也可以使用自定义的图片
userInfo：用户信息字典 自定义参数，完成具体功能需求
*/
// UIApplicationShortcutIcon *icon1 = [UIApplicationShortcutIcon iconWithTemplateImageName:@"标签.png"];
UIApplicationShortcutIcon*cameraIcon = [UIApplicationShortcutIconiconWithType:UIApplicationShortcutIconTypeCompose];
UIApplicationShortcutItem*cameraItem = [[UIApplicationShortcutItemalloc]initWithType:@"ONE"localizedTitle:@"拍照"localizedSubtitle:@""icon:cameraIconuserInfo:nil];
UIApplicationShortcutIcon*shareIcon = [UIApplicationShortcutIconiconWithType:UIApplicationShortcutIconTypeShare];
UIApplicationShortcutItem*shareItem = [[UIApplicationShortcutItemalloc]initWithType:@"TWO"localizedTitle:@"分享"localizedSubtitle:@""icon:shareIconuserInfo:nil];
/** 将items 添加到app图标 */
application.shortcutItems= @[cameraItem,shareItem];
}
最后在代理方法里面实现具体需求代码
[objc]view plaincopy
-(void)application:(UIApplication*)applicationperformActionForShortcutItem:(UIApplicationShortcutItem*)shortcutItemcompletionHandler:(void(^)(BOOL))completionHandler
{
UINavigationController*nav = (UINavigationController*)self.window.rootViewController;
if([shortcutItem.typeisEqualToString:@"ONE"]){
UIViewController*vc = [[UIViewControlleralloc]init];
vc.title=@"第一个";
vc.view.backgroundColor= [UIColorredColor];
[navpushViewController:vcanimated:YES];
}elseif([shortcutItem.typeisEqualToString:@"TWO"]){
UIViewController*vc = [[UIViewControlleralloc]init];
vc.title=@"第二个";
vc.view.backgroundColor= [UIColorgreenColor];
[navpushViewController:vcanimated:YES];
}
}
二、应用内UI界面用力按下产生的3DTouch效果（这种方式也有两种实现效果）
1、比如用力按下某个cell，弹出预览的小视图，同时上滑底部出现若干个选项（Peek功能）
首先注册需要实现Touch效果的View，判断下设备系统支不支持，不然会崩溃
把当前的cell注册绑定，然后试图界面实现UIViewControllerPreviewingDelegate代理
[objc]view plaincopy
#pragma mark - UIViewControllerPreviewingDelegate
-(UIViewController*)previewingContext:(id)previewingContextviewControllerForLocation:(CGPoint)location
{
NSIndexPath*index = [self.tableViewindexPathForCell:(UITableViewCell*)[previewingContextsourceView]];
NewsListModel*model =self.lists[index.row];
NewsDetailsViewController*showVC = [[NewsDetailsViewControlleralloc]init];
showVC.newsID= model.news_id;
CGRect rect = CGRectMake(0,0, previewingContext.sourceView.ab_width, previewingContext.sourceView.ab_height);
previewingContext.sourceRect= rect;
returnshowVC;
}
到这里就能有弹出预览界面效果了，如果还是实现下面的几个选项功能，需要在你预览界面里面实现一个方法：
[objc]view plaincopy
- (NSArray> *)previewActionItems
{
UIPreviewAction*action0= [UIPreviewActionactionWithTitle:@"action0"style:UIPreviewActionStyleDefaulthandler:^(UIPreviewAction* _Nonnull action,UIViewController* _Nonnull previewViewController) {
NSLog(@"%s, line = %d, action0 = %@, previewViewController = %@", __FUNCTION__, __LINE__, action, previewViewController);
}];
UIPreviewAction*action1= [UIPreviewActionactionWithTitle:@"action1"style:UIPreviewActionStyleDestructivehandler:^(UIPreviewAction* _Nonnull action,UIViewController* _Nonnull previewViewController) {
NSLog(@"%s, line = %d, action1 = %@, previewViewController = %@", __FUNCTION__, __LINE__, action, previewViewController);
}];
UIPreviewAction*action2= [UIPreviewActionactionWithTitle:@"action2"style:UIPreviewActionStyleSelectedhandler:^(UIPreviewAction* _Nonnull action,UIViewController* _Nonnull previewViewController) {
NSLog(@"%s, line = %d, action2 = %@, previewViewController = %@", __FUNCTION__, __LINE__, action, previewViewController);
}];
UIPreviewAction*action3= [UIPreviewActionactionWithTitle:@"action3"style:UIPreviewActionStyleSelectedhandler:^(UIPreviewAction* _Nonnull action,UIViewController* _Nonnull previewViewController) {
NSLog(@"%s, line = %d, action2 = %@, previewViewController = %@", __FUNCTION__, __LINE__, action, previewViewController);
}];
//该按钮可以是一个组,点击该组时,跳到组里面的按钮.
UIPreviewActionGroup*actionGroup = [UIPreviewActionGroupactionGroupWithTitle:@"actionGroup"style:UIPreviewActionStyleSelectedactions:@[action2,action3]];
//直接返回数组.
return@[action0,action1,actionGroup];
}
2、在第1个效果的基础上，再继续用力按下去，就会push预览界面了。（pop功能）
再实现一个代理方法
[objc]view plaincopy
#pragma mark - UIViewControllerPreviewingDelegate
-(void)previewingContext:(id)previewingContextcommitViewController:(UIViewController*)viewControllerToCommit
{
[selfshowViewController:viewControllerToCommitsender:self];
}
这样就能直接puhs想要的界面了。
