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最近在工作中遇到了這么一個需求：如何實現(xiàn) Android 應用前后臺切換的監(jiān)聽？下面來一起看看詳細的介紹：

iOS 內(nèi)邊是可以實現(xiàn)的，AppDelegate 給了一個回調(diào)監(jiān)聽：

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
 func applicationWillResignActive(_ application: UIApplication) {
 // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
 // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
 }
 func applicationDidEnterBackground(_ application: UIApplication) {
 // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
 // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
 }
 func applicationWillEnterForeground(_ application: UIApplication) {
 // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
 }
 func applicationDidBecomeActive(_ application: UIApplication) {
 // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
 }
}

文章題目：Android中應用前后臺切換監(jiān)聽的實現(xiàn)詳解-創(chuàng)新互聯(lián)
轉(zhuǎn)載來源：http://jinyejixie.com/article34/cccppe.html

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