AppDelegate的类别属性不起作用

如何解决AppDelegate的类别属性不起作用

我已将AppDelegate扩展为我的类别。当用户使用终止的应用程序输入某些地理围栏时，目标是启动服务器请求并显示通知。这些都在GeoNotificationManager类中完成。我需要做的-从位置事件启动应用后，实例化此类。

一切正常，但问题除外：-当GeoNotificationManager位于类别内时，GeoNotificationManager* manager = [GeoNotificationManager new]; [manager sendTestServerRequest:@"test"]; // REQUEST NOT SENDING,WHY??? 内部的代码不起作用（无服务器请求，没有通知）。而且，当它位于AppDelegate自身内部时，一切正常即可正常工作。

我也尝试过在类别中不带属性，这也行不通。

//AppDelegate+Geofence.h

#import "AppDelegate.h"

@class GeoNotificationManager;

@interface AppDelegate (Geofence)
@property (strong) GeoNotificationManager* geof;
@end

NSString * const kNewPropertyKey = @"kNewPropertyKey";

@class GeoNotificationManager;

@implementation AppDelegate(Geofence)


-(BOOL)application:(UIApplication *)application willFinishLaunchingWithOptions:
(NSDictionary<UIApplicationLaunchOptionsKey,id> *)launchOptions {
     if ([launchOptions objectForKey:UIApplicationLaunchOptionsLocationKey])
     {
         self.geof = [GeoNotificationManager new];
         [self.geof sendTestServerRequest:@"test"];
         
    }
    return true;
}
 // I don't understand what is that below,but seems it's required for having property in category

- (void)setGeof:(id)aObject
{
    objc_setAssociatedObject(self,(__bridge const void * _Nonnull)(kNewPropertyKey),aObject,OBJC_ASSOCIATION_ASSIGN);

}
- (id)geof
{
    return objc_getAssociatedObject(self,(__bridge const void * _Nonnull)(kNewPropertyKey));
}

@objc class GeoNotificationManager : NSObject,CLLocationManagerDelegate {
    let locationManager = CLLocationManager()

    override init() {
        super.init()
        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        locationManager.allowsBackgroundLocationUpdates = true
        locationManager.showsBackgroundLocationIndicator = true
    }
// OTHER CODE,-didEnterRegion,server request etc

  { "RedirectUrl": "www.youtube.com"}

解决方法

OBJC_ASSOCIATION_ASSIGN仅应替换为OBJC_ASSOCIATION_RETAIN，它可以工作！ 但是，如果有人知道如何使用局部变量执行此操作，请分享