ios - localNotification は発火日でアクションを実行します

Question

firedate が等しいときに Appdelegate から -(void)doaction を実行しようとしていますが、initWithTitle と cancelButtonTitle のみが表示され、アクション全体が実行されず、クラッシュしてから cancelButton をタップします。なぜ助けてくれるのかわかりません。これが私が試したことです。

Viewcontroller.m

 NSDate *pickerDate = [self.datePicker date];

[[NSCalendar currentCalendar] rangeOfUnit:NSMinuteCalendarUnit
                                startDate:&pickerDate
                                 interval:NULL
                                  forDate:pickerDate];

[[UIApplication sharedApplication] cancelAllLocalNotifications];
UILocalNotification* localNotification = [[UILocalNotification alloc] init];
UIApplication *app = [UIApplication sharedApplication];


if (localNotification) {


    localNotification.fireDate = pickerDate;
    localNotification.timeZone = [NSTimeZone defaultTimeZone];
    localNotification.applicationIconBadgeNumber = 1;
    [app scheduleLocalNotification:localNotification];

 }

    [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];

}

アクション。

- (void)doaction{

if (!recorder.recording){
    player = [[AVAudioPlayer alloc] initWithContentsOfURL:recorder.url error:nil];
    [player setDelegate:self];
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"name" message:self.wakeMessage.text delegate:self cancelButtonTitle:@"Done" otherButtonTitles:nil];
    player.numberOfLoops = -1;
    [player play];

    [alert show];


}
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
 if (buttonIndex==0) {
    [player stop];
}

そしてAppdeleget.mで

- (void)application:(UIApplication *)application didReceiveLocalNotification(UILocalNotification *)localNotification { 
    localNotification.applicationIconBadgeNumber = 1;

ViewController * vc = [[ViewController alloc]init];
    [vc doaction];
}

前もって感謝します