lifecycleDelegate

application

application

performFetchWithCompletionHandler

completionHandler

func

add

delegate

FlutterApplicationLifeCycleDelegate

lifecycleDelegate

add

delegate

@import

Flutter

@import

UIKit

@import

FlutterPluginRegistrant

@interface

AppDelegate

UIResponder

UIApplicationDelegate

FlutterAppLifeCycleProvider

@property

strong

nonatomic

UIWindow

window

@property

nonatomic

strong

FlutterEngine

flutterEngine

@end