複合CメソッドからObjective-Cメソッドを呼び出しますか？

Question

私はデバイスの画面を暗く明るくする方法と、デバイスが充電中/充電中でないときに、ビュー上に黒のUIViewを導入する方法のグループを設定しました。

私が抱えている課題は、デバイスが充電中かどうかをチェックするために使用されるCメソッドからObj Cメソッド（brightenScreenとdimScreen）を呼び出すことです。

ご了承ください。

-(void)setUpChargingCheck{ 

    [[UIDevice currentDevice] setBatteryMonitoringEnabled:YES]; 

    // Do whatever you want... 
    if ([[UIDevice currentDevice] batteryState] != UIDeviceBatteryStateUnplugged){ 
     [self brightenScreen]; 
    }else{ 
     [self dimScreen]; 
    } 

    // Registering for a specific notification 
    NSString *notificationName = @"com.apple.springboard.fullycharged"; 
    CFNotificationCenterAddObserver(CFNotificationCenterGetDarwinNotifyCenter(), 
            NULL, 
            yourCustomMethod, 
            (__bridge CFStringRef)notificationName, 
            NULL, 
            CFNotificationSuspensionBehaviorDeliverImmediately); 

} 

// The custom method that will receive the notification 
static void yourCustomMethod(CFNotificationCenterRef center, void *observer, CFStringRef name, const void *object, CFDictionaryRef userInfo) 
{ 
    NSString *nameOfNotification = (__bridge NSString*)name; 

    if([nameOfNotification isEqualToString:@"com.apple.springboard.fullycharged"]) 
    { 
     if ([[UIDevice currentDevice] batteryState] != UIDeviceBatteryStateUnplugged){ 
      [[UIScreen mainScreen] setBrightness:1.0]; 
      // brighten screen here 
     }else{ 
      [[UIScreen mainScreen] setBrightness:0.0]; 
      // dim screen here 
     } 
    } 
} 

-(void)dimScreen{ 
    [[UIScreen mainScreen] setBrightness:1.0]; 
    [self.blackoutView removeFromSuperview]; 
} 

-(void)brightenScreen{ 
    CGFloat width = [UIScreen mainScreen].bounds.size.width; 
    CGFloat height = [UIScreen mainScreen].bounds.size.height; 

    [[UIScreen mainScreen] setBrightness:0.0]; 
    self.blackoutView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, width, height)]; 
    [self.blackoutView setBackgroundColor:[UIColor blackColor]]; 
    [self.view addSubview:self.blackoutView]; 
} 

Answer 1

YourClass *yourClassObject = (__bridge YourClass *)(observer); 
    [yourClassObject dimScreen];