Swift如何給應用添加3D Touch菜單

OneSwift - iOS Tips Based On Swift

今天爲你們帶來的是給應用添加3D Touch菜單，這樣能夠方便用戶在首頁便可快速訪問某些頁面。 以OneDay爲例，經過3D Touch用戶能夠快速選擇進入到添加頁面、設置頁面、歸檔頁面、首頁。

1、建立自定義的3D Touch菜單

在AppDelegate的didFinishLaunchingWithOptions中，咱們添加下列代碼，來實現按鈕的添加。

//添加icon 3d Touch
let firstItemIcon:UIApplicationShortcutIcon = UIApplicationShortcutIcon(type: .confirmation)
let firstItem = UIMutableApplicationShortcutItem(type: "1", localizedTitle: NSLocalizedString("Home", comment: "Home icon"), localizedSubtitle: nil, icon: firstItemIcon, userInfo: nil)

let firstItemIcon1:UIApplicationShortcutIcon = UIApplicationShortcutIcon(type: .taskCompleted)
let firstItem1 = UIMutableApplicationShortcutItem(type: "2", localizedTitle: NSLocalizedString("Archive ", comment: "Archive icon"), localizedSubtitle: nil, icon: firstItemIcon1, userInfo: nil)


let firstItemIcon2:UIApplicationShortcutIcon = UIApplicationShortcutIcon(type: .task)
let firstItem2 = UIMutableApplicationShortcutItem(type: "3", localizedTitle: NSLocalizedString("Setting", comment: "Setting icon"), localizedSubtitle: nil, icon: firstItemIcon2, userInfo: nil)


let firstItemIcon3:UIApplicationShortcutIcon = UIApplicationShortcutIcon(type: .add)
let firstItem3 = UIMutableApplicationShortcutItem(type: "4", localizedTitle: NSLocalizedString("Add", comment: "Add icon"), localizedSubtitle: nil, icon: firstItemIcon3, userInfo: nil)

application.shortcutItems = [firstItem,firstItem1,firstItem2,firstItem3]

複製代碼

其中按鈕的icon使用系統的icon圖片，其餘圖樣能夠參考這個連接。

3DTouch Xcode原生圖標icon圖樣預覽

2、爲每一個按鈕添加響應事件

接着咱們爲每一個按鈕添加響應事件，由於個人四個按鈕恰好都到一個固定頁面，因此響應事件實現頁面的跳轉便可。

綁定按鈕的事件函數：

func application(_ application: UIApplication, performActionFor shortcutItem: UIApplicationShortcutItem, completionHandler: @escaping (Bool) -> Void) {
        let handledShortCutItem = handleShortCutItem(shortcutItem: shortcutItem)
        completionHandler(handledShortCutItem)
    }
複製代碼

函數的具體代碼：

func handleShortCutItem(shortcutItem: UIApplicationShortcutItem) -> Bool {
    var handled = false

    if shortcutItem.type == "1" { //首頁

        let rootNavigationViewController = window!.rootViewController as? UINavigationController
        let rootViewController = rootNavigationViewController?.viewControllers.first as UIViewController?

        rootNavigationViewController?.popToRootViewController(animated: false)
        handled = true

    }
    if shortcutItem.type == "2" { //編輯

        let rootNavigationViewController = window!.rootViewController as? UINavigationController
        let rootViewController = rootNavigationViewController?.viewControllers.first as UIViewController?

        rootNavigationViewController?.popToRootViewController(animated: false)
        rootViewController?.performSegue(withIdentifier: "toArchive", sender: nil)
        handled = true

    }

    if shortcutItem.type == "3" { //設置

        let rootNavigationViewController = window!.rootViewController as? UINavigationController
        let rootViewController = rootNavigationViewController?.viewControllers.first as UIViewController?

        rootNavigationViewController?.popToRootViewController(animated: false)
        rootViewController?.performSegue(withIdentifier: "toSetting", sender: nil)
        handled = true

    }

    if shortcutItem.type == "4" { //編輯

        let rootNavigationViewController = window!.rootViewController as? UINavigationController
        let rootViewController = rootNavigationViewController?.viewControllers.first as UIViewController?

        rootNavigationViewController?.popToRootViewController(animated: false)
        rootViewController?.performSegue(withIdentifier: "addTodo", sender: nil)
        handled = true

    }

    return handled
}
複製代碼

這裏我用到了performSegue，因此在Main.storyboard中會給每一個跳轉綁定ID。

後續將補充介紹如何自定義icon、如何在頁面內實現3D Touch，歡迎關注OneSwift的後續更新。

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