在AppleDelegate文件中的程序入口處配置：
didFinishLaunchingWithOptions
//給App圖標添加3D Touch菜單 //拍照 //菜單圖標 UIapplicationShortcutIcon *iconCamera = [UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeAdd]; //菜單文字 UIMutableApplicationShortcutItem *itemCamera = [[UIMutableApplicationShortcutItem alloc] 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 = [UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeSearch]; //菜單文字 UIMutableApplicationShortcutItem *itemPhotoLibrary = [[UIMutableApplicationShortcutItem alloc] initWithType:@"2" localizedTitle:@"相冊"]; //綁定信息到指定菜單 itemPhotoLibrary.icon = iconPhotoLibrary; //綁定到App icon application.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 *)application performActionForShortcutItem:(nonnull UIApplicationShortcutItem *)shortcutItem completionHandler:(nonnull void (^)(BOOL))completionHandler;
讓后我們需要在這個方法里做跳轉的操作
//照相type if ([shortcutItem.type isEqualToString:@"1"]) { UIImagePickerController *picker = [[UIImagePickerController alloc] init];//初始化 picker.allowsEditing = YES;//設置可編輯 picker.sourceType = UIImagePickerControllerSourceTypeCamera; [self.window.rootViewController PResentViewController:picker animated:YES completion:nil];//進入照相界面 } //相冊type if ([shortcutItem.type isEqualToString:@"2"]) { UIImagePickerController *picker = [[UIImagePickerController alloc] init];//初始化 picker.allowsEditing = YES;//設置可編輯 picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; [self.window.rootViewController presentViewController:picker animated:YES completion:nil];//進入圖片庫點擊后分別會進入相機和相冊
nterface ViewController () <UIViewControllerPreviewingDelegate>{ UILongPressGestureRecognizer *_longPress;}@end@implementation ViewController- (void)viewDidLoad { [super viewDidLoad]; UILongPressGestureRecognizer *longPressGr = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressToDo)]; _longPress = longPressGr;}//檢測頁面是否處于3DTouch- (void)check3DTouch{ if (self.traitCollection.forceTouchCapability == UIForceTouchCapabilityAvailable) { [self registerForPreviewingWithDelegate:self sourceView:self.view]; NSLog(@"3D Touch 開啟"); //長按停止 _longPress.enabled = NO; }else{ _longPress.enabled = YES; } }- (void)viewWillAppear:(BOOL)animated{ [self check3DTouch]; }
然后我們需要實現 UIViewControllerPreviewingDelegate的協議
@interface ViewController () <UIViewControllerPreviewingDelegate>
//然后實現代理方法- (UIViewController *)previewingContext:(id<UIViewControllerPreviewing>)previewingContext viewControllerForLocation:(CGPoint)location;
#pragma mark >> 3D touch 代理方法//輕按進入浮動預覽頁面- (UIViewController *)previewingContext:(id<UIViewControllerPreviewing>)previewingContext viewControllerForLocation:(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Cell aspreviewViewController *vc = [[ASPreviewViewController alloc] init]; vc.view.frame = self.view.frame; UIImageView *er = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"123.png"]]; vc.view = er; return vc; }
完成后可以實現基本的預覽效果:
最后我們加上一個
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Action Items- (NSArray<id<UIPreviewActionItem>> *)previewActionItems{ UIPreviewAction *p1 =[UIPreviewAction actionWithTitle:@"分享" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) { NSLog(@"點擊了分享"); }]; UIPreviewAction *p2 =[UIPreviewAction actionWithTitle:@"收藏" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) { NSLog(@"點擊了收藏"); }]; NSArray *actions = @[p1,p2]; return actions;}
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