在 IOS 中的应用程序之间共享数据 [英] Sharing data in between apps in IOS

问题描述

我的任务是在同一设备中的应用程序之间共享数据.可能两个应用程序可以在同一设备上使用共享数据库.如何在 IOS 中的两个应用程序之间共享数据.任何人都以任何方式做到了.请告诉我.谢谢

I have a task to share data between apps in the same device. May be both apps can use a shared database on same device. How to share Data between two apps in IOS. Anybody have done it in any way. Please let me know. Thanks

推荐答案

您可以在具有相同组容器 ID 的两个应用上的应用项目功能"选项卡上打开应用组."group.com.yourCompanyID.sharedDefaults"

You can turn on App group on your App Project capabilities tab on both of your apps with the same group container ID. "group.com.yourCompanyID.sharedDefaults"

然后您可以使用以下网址从您的应用程序访问同一文件夹:

Then you can access the same folder from your apps using the following url:

let sharedContainerURL = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: "group.com.yourCompanyID.sharedDefaults")!

因此，如果您想从两个不同的应用程序共享开关状态，您应该按照以下方式进行:

So if you would like to share a switch state from two different apps you should do it as follow:

import UIKit

class ViewController: UIViewController {
    @IBOutlet weak var sharedSwitch: UISwitch!
    let switchURL = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: "group.com.yourCompanyID.sharedDefaults")!
        .appendingPathComponent("switchState.plist")
    override func viewDidLoad() {
        super.viewDidLoad()
        print(switchURL.path)
        NotificationCenter.default.addObserver(self, selector: #selector(updateSwitch), name: .UIApplicationDidBecomeActive, object: nil)
    }
    func updateSwitch(_ notofication: Notification) {
        sharedSwitch.isOn = NSKeyedUnarchiver.unarchiveObject(withFile: switchURL.path) as? Bool == true
    }
    @IBAction func switched(_ sender: UISwitch) {
        let success = NSKeyedArchiver.archiveRootObject(sender.isOn, toFile: switchURL.path)
        print(success)
    }
}

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