我正在制作一个应用程序,可以帮助患有某些健康状况的人管理他们的药物。我创建了一个添加药物的模式,该模式可以使用核心数据并保存新药物。
我现在正试图让人们在保存后编辑他们的药物。为此,我尝试将药物的托管对象发送到“fibromappMedsEditViewController”并在类的 viewDidLoad 方法中分配信息。
我不断收到此错误:
'NSInvalidArgumentException', reason: '-[UINavigationController setMed:]: unrecognized selector sent to instance 0x746dda0'
谁能告诉我我做错了什么?
fibromappMedsListViewController.m 中的相关方法
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{ //selMed declared at top of file as NSManagedObject *selMed;
selMed = [self.meds objectAtIndex:indexPath.row];
NSLog(@"SELECTED MED: %@",[selMed valueForKey:@"name"] );
UIStoryboardSegue *segueString = [NSString stringWithFormat:@"%@",@"editMeds"];
NSLog(@"%@",segueString);
[self performSegueWithIdentifier:@"editMeds" sender:indexPath];
}
-(void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
NSLog(@"%@",segue.destinationViewController);
NSLog(@"%@",[selMed valueForKey:@"name"] );
fibroMappMedsEditViewController *dest = segue.destinationViewController;
dest.med = selMed;
}
fibroMappMedsEditViewController.h
#import <UIKit/UIKit.h>
@interface fibroMappMedsEditViewController : UITableViewController
- (IBAction)saveChanges:(id)sender;
- (IBAction)deleteBtnPressed:(id)sender;
- (IBAction)dosageChanged:(id)sender;
- (IBAction)maxDosageChanged:(id)sender;
- (IBAction)cancel:(id)sender;
- (IBAction)typeChanged:(id)sender;
@property (weak, nonatomic) IBOutlet UITextField *tbName;
@property (weak, nonatomic) IBOutlet UITextField *tbDose;
@property (weak, nonatomic) IBOutlet UITextField *tbMaxDose;
@property (weak, nonatomic) IBOutlet UITextField *tbType;
@property (weak, nonatomic) IBOutlet UIStepper *stepperDose;
@property (weak, nonatomic) IBOutlet UIStepper *stepperMaxDose;
@property (weak, nonatomic) IBOutlet UISegmentedControl *changeMeasure;
@property (strong, nonatomic) NSManagedObject *med;
@end
fibroMappMedsEditViewController.m - 只是我更改的影响控制器加载方式的部分
#import "fibroMappMedsEditViewController.h"
#import "fibroMappAppDelegate.h"
#import <CoreData/CoreData.h>
@interface fibroMappMedsEditViewController ()
@end
@implementation fibroMappMedsEditViewController
@synthesize tbName;
@synthesize tbDose;
@synthesize tbMaxDose;
@synthesize tbType;
@synthesize med;
double dose;
double maxDose;
- (void)viewDidLoad
{
[super viewDidLoad];
tbName.text = [med valueForKey:@"name"];//name is a string in the model
tbDose.text = [med valueForKey:@"dose"];//dose is a double in the model
tbMaxDose.text = [med valueForKey:@"maxDose"];//maxDose is a double in the model
tbType.text = [med valueForKey:@"type"];//type is a string in the model
}
如果您需要查看其他内容,请询问。
另外,我正在为这个应用程序使用故事板。