iPhone模拟器-如何检测应用程序何时在模拟器上运行（以便可以设置测试数据）

检测应用程序运行状态

示例代码

Swift
import UIKit
class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        NotificationCenter.default.addObserver(self, selector: #selector(applicationStateChanged), name: UIApplication.didBecomeActiveNotification, object: nil)
        NotificationCenter.default.addObserver(self, selector: #selector(applicationStateChanged), name: UIApplication.didEnterBackgroundNotification, object: nil)
    }
    
    @objc func applicationStateChanged() {
        switch UIApplication.shared.applicationState {
        case .active:
            // 应用程序处于活动状态，设置测试数据
            setTestData()
        case .inactive:
            // 应用程序处于非活动状态
            break
        case .background:
            // 应用程序处于后台运行状态
            break
        @unknown default:
            break
        }
    }
    
    func setTestData() {
        // 设置测试数据
        // ...
    }
}