使用NSString在另一個字符串中顯示？

-2

我需要能夠顯示開關是否打開或關閉警報以及其他細節，所有細節顯示都很好，但是當我嘗試添加notificationStatus字符串時，它會給我一個錯誤。「未聲明的標識符的使用‘notificationStatus’」使用NSString在另一個字符串中顯示？

-(void) procrastinationNotificationSwitchOnOrOff { 

    if (_procrastinationNotificationSwitch.on) { 
     _notificationOnOffLabel.text = @"Procrastination Notification On"; 
     NSString *notificationStatus = @"NOTIFICATION ON"; 
     NSLog(notificationStatus); 
    } 
    else { 
     _notificationOnOffLabel.text = @"Procrastination Notification Off"; 
     NSString *notificationStatus = @"NOTIFICATION OFF"; 
     NSLog(notificationStatus); 
    } 
} 


-(void) presentMessage:(NSString *)message { 
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Class Stuff" message:message delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil]; 
    [alert show]; 

} 

-(void) notificationStatus:(NSString *)stat { 
    NSString *status = [NSString stringWithFormat:@"%@", stat]; 

} 


-(IBAction)returnKeyButton:(id)sender { 
    [sender resignFirstResponder]; 

    NSString *classNameString = self.className.text; 
    NSLog(classNameString); 
    NSString *assignmentTitleString = self.assignmentTitle.text; 
    NSLog(assignmentTitleString); 
    NSString *assignmentDescriptionString = self.assignmentDescription.text; 
    NSLog(assignmentDescriptionString); 
    NSString *totalStrings = [NSString stringWithFormat:@"%@ %@ %@ %@", classNameString, assignmentTitleString, assignmentDescriptionString, notificationStatus]; 
    NSLog(totalStrings); 

    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init]; 
    dateFormatter.timeZone = [NSTimeZone defaultTimeZone]; 
    dateFormatter.timeStyle = NSDateFormatterShortStyle; 
    dateFormatter.dateStyle = NSDateFormatterShortStyle; 

    NSString *dateTimeString = [dateFormatter stringFromDate: dateTimePicker.date]; 
    NSLog(@"Alarm Set Button Tapped : %@", dateTimeString); 
    [self presentMessage:totalStrings]; 
} 


- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
    // Do any additional setup after loading the view, typically from a nib. 
    [_procrastinationNotificationSwitch addTarget:self action:@selector(procrastinationNotificationSwitchOnOrOff) forControlEvents:UIControlEventValueChanged]; 
}

來源

2013-09-22 AbdelElrafa

您的方法procrastinationNotificationSwitchOnOrOff一個局部變量notificationStatus。你也有notificationStatus。您沒有屬性或實例變量notificationStatus。

添加屬性notificationStatus。擺脫方法notificationStatus。總是使用self.notificationStatus讀寫notificationStatus。問題解決了。

來源

2013-09-22 23:51:17

非常感謝！ – AbdelElrafa

有什麼方法可以將換行符添加到警報中的字符串中嗎？ – AbdelElrafa

我認爲你具有的方法

-(void) notificationStatus:(NSString *)stat { 
    NSString *status = [NSString stringWithFormat:@"%@", stat]; 

}

困惑的事情會好起來使其成爲一個局部變量，如果你想操縱它，使用getter和setter。

來源

2013-09-22 23:52:02 daidai

使用NSString在另一個字符串中顯示？

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