蘋果3d touch怎么用(iOS怎么使用3D Touch)

1.前言　　

隨著6S的到來,3DTouch被各大熱門APP迅速普及,博主親自體驗后,發現使用便捷性大幅提高,隨后自己照著文檔,寫了個Demo出來。

2.如何使用3D Touch?　　

2.1.主界面重按APP圖標,彈出Touch菜單　　

在AppleDelegate文件中的程序入口處配置:

didFinishLaunchingWithOptions

//給App圖標添加3DTouch菜單//拍照//菜單圖標UIApplicationShortcutIcon*iconCamera=[UIApplicationShortcutIconiconWithType:UIApplicationShortcutIconTypeAdd];//菜單文字UIMutableApplicationShortcutItem*itemCamera=[[UIMutableApplicationShortcutItemalloc]initWithType:@"1"localizedTitle:@"拍照"];//綁定信息到指定菜單itemCamera.icon=iconCamera;//相冊//菜單圖標UIApplicationShortcutIcon*iconPhotoLibrary=[UIApplicationShortcutIconiconWithType:UIApplicationShortcutIconTypeSearch];//菜單文字UIMutableApplicationShortcutItem*itemPhotoLibrary=[[UIMutableApplicationShortcutItemalloc]initWithType:@"2"localizedTitle:@"相冊"];//綁定信息到指定菜單itemPhotoLibrary.icon=iconPhotoLibrary;//綁定到Appiconapplication.shortcutItems=@[itemCamera,itemPhotoLibrary];

彈出菜單,我們需要讓用戶點擊后跳轉指定頁面

這里我們會用到AppDelegate里新增加的一個方法

-(void)application:(UIApplication*)applicationperformActionForShortcutItem:(nonnullUIApplicationShortcutItem*)shortcutItemcompletionHandler:(nonnullvoid(^)(BOOL))completionHandler;

讓后我們需要在這個方法里做跳轉的操作

//照相typeif([shortcutItem.typeisEqualToString:@"1"]){UIImagePickerController*picker=[[UIImagePickerControlleralloc]init];//初始化picker.allowsEditing=YES;//設置可編輯picker.sourceType=UIImagePickerControllerSourceTypeCamera;[self.window.rootViewControllerpresentViewController:pickeranimated:YEScompletion:nil];//進入照相界面}//相冊typeif([shortcutItem.typeisEqualToString:@"2"]){UIImagePickerController*picker=[[UIImagePickerControlleralloc]init];//初始化picker.allowsEditing=YES;//設置可編輯picker.sourceType=UIImagePickerControllerSourceTypePhotoLibrary;[self.window.rootViewControllerpresentViewController:pickeranimated:YEScompletion:nil];//進入圖片庫

點擊后分別會進入相機和相冊

2.2. 3DTouch輕按預覽功能,預覽時底部菜單的添加　　

首先我們要把輕按預覽和長按手勢區分開來,這里要在初始化時做一個基本的檢測。

nterfaceViewController()<UIViewControllerPreviewingDelegate>{UILongPressGestureRecognizer*_longPress;}@end@implementationViewController-(void)viewDidLoad{[superviewDidLoad];UILongPressGestureRecognizer*longPressGr=[[UILongPressGestureRecognizeralloc]initWithTarget:selfaction:@selector(longPressToDo)];_longPress=longPressGr;}//檢測頁面是否處于3DTouch-(void)check3DTouch{if(self.traitCollection.forceTouchCapability==UIForceTouchCapabilityAvailable){[selfregisterForPreviewingWithDelegate:selfsourceView:self.view];NSLog(@"3DTouch開啟");//長按停止_longPress.enabled=NO;}else{_longPress.enabled=YES;}}-(void)viewWillAppear:(BOOL)animated{[selfcheck3DTouch];}

然后我們需要實現 UIViewControllerPreviewingDelegate的協議

@interfaceViewController()<UIViewControllerPreviewingDelegate>

//然后實現代理方法-(UIViewController*)previewingContext:(id<UIViewControllerPreviewing>)previewingContextviewControllerForLocation:(CGPoint)location;#pragmamark>>3Dtouch代理方法//輕按進入浮動預覽頁面-(UIViewController*)previewingContext:(id<UIViewControllerPreviewing>)previewingContextviewControllerForLocation:(CGPoint)location{//注意這里我因為測試,沒做具體的位置處理,如果需要定位到具體的圖片Cell位置的話,可以用location通過tableView的convertPoint來取到指定CellASPreviewViewController*vc=[[ASPreviewViewControlleralloc]init];vc.view.frame=self.view.frame;UIImageView*er=[[UIImageViewalloc]initWithImage:[UIImageimageNamed:@"123.png"]];vc.view=er;returnvc;}

完成后可以實現基本的預覽效果:

最后我們加上一個

預覽時下滑底部菜單的添加

在我們剛剛創建的預覽控制器ASPreviewViewController里實現 UIViewControllerPreviewingDelegate的協議

然后重寫它的代理方法

-(NSArray<id<UIPreviewActionItem>>*)previewActionItems;//預覽頁面底部ActionItems-(NSArray<id<UIPreviewActionItem>>*)previewActionItems{UIPreviewAction*p1=[UIPreviewActionactionWithTitle:@"分享"style:UIPreviewActionStyleDefaulthandler:^(UIPreviewAction*_Nonnullaction,UIViewController*_NonnullpreviewViewController){NSLog(@"點擊了分享");}];UIPreviewAction*p2=[UIPreviewActionactionWithTitle:@"收藏"style:UIPreviewActionStyleDefaulthandler:^(UIPreviewAction*_Nonnullaction,UIViewController*_NonnullpreviewViewController){NSLog(@"點擊了收藏");}];NSArray*actions=@[p1,p2];returnactions;}

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