Ios 如果应用程序代理要使用主情节提要文件,则必须实现window属性
我正在以编程方式实现一个列表视图控制器。 当我尝试运行项目时,出现错误:Ios 如果应用程序代理要使用主情节提要文件,则必须实现window属性,ios,uiviewcontroller,uinavigationcontroller,uiwindow,appdelegate,Ios,Uiviewcontroller,Uinavigationcontroller,Uiwindow,Appdelegate,我正在以编程方式实现一个列表视图控制器。 当我尝试运行项目时,出现错误: 2012-11-07 22:46:34.719 myTableViewControl[12021:c07] The app delegate must implement the window property if it wants to use a main storyboard file. 2012-11-07 22:46:34.722 myTableViewControl[12021:c07] -[
2012-11-07 22:46:34.719 myTableViewControl[12021:c07] The app delegate must implement the window property if it wants to use a main storyboard file.
2012-11-07 22:46:34.722 myTableViewControl[12021:c07] -[AppDelegate setWindow:]: unrecognized selector sent to instance 0x7674e70
2012-11-07 22:46:34.723 myTableViewControl[12021:c07] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[AppDelegate setWindow:]: unrecognized selector sent to instance 0x7674e70'
*** First throw call stack:
(0x1c8e012 0x10cbe7e 0x1d194bd 0x10df7ea 0x1c7dcf9 0x1c7d94e 0x1d60 0x107b7 0x10da7 0x11fab 0x23315 0x2424b 0x15cf8 0x1be9df9 0x1be9ad0 0x1c03bf5 0x1c03962 0x1c34bb6 0x1c33f44 0x1c33e1b 0x117da 0x1365c 0x1bd2 0x1b05)
libc++abi.dylib: terminate called throwing an exception
(lldb)
当我运行代码时,它挂在main.m上并显示
“线程1:信号SIGABRT”
我的代码如下:
AppDelegate.h
//
// AppDelegate.h
// myTableViewControl
//
// Created by Max on 12-11-5.
// Copyright (c) 2012年 Max. All rights reserved.
//
#import <UIKit/UIKit.h>
@interface AppDelegate : UIResponder <UIApplicationDelegate>
@property (strong, nonatomic) UINavigationController *navigationController;
@end
FirstViewController是列表视图控制器。您正在将窗口创建为局部变量,然后尝试使用
self.window
将其作为属性来访问。让它成为一个属性。菲利普是正确的。头文件中缺少以下行:@property(强,非原子)UIWindow*窗口
另外,当您已经拥有该@属性
并且它仍然抛出运行时错误时,请查看您是否也拥有该属性的@synthesis
。在XCode 4.5和iPhone5中,它在没有它的情况下奇迹般地工作。我没有尝试过任何其他组合,因为我事先发现了这个错误。@PavelZdenek是的,这是因为新的objective-C2.0功能,自动合成属性。这回答了你的问题吗?
//
// AppDelegate.h
// myTableViewControl
//
// Created by Max on 12-11-5.
// Copyright (c) 2012年 Max. All rights reserved.
//
#import <UIKit/UIKit.h>
@interface AppDelegate : UIResponder <UIApplicationDelegate>
@property (strong, nonatomic) UINavigationController *navigationController;
@end
//
// AppDelegate.m
// myTableViewControl
//
// Created by Max on 12-11-5.
// Copyright (c) 2012年 Max. All rights reserved.
//
#import "AppDelegate.h"
#import "firstViewController.h"
@implementation AppDelegate
@synthesize navigationController;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions: (NSDictionary *)launchOptions
{
// create the base window
UIWindow *window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
window.backgroundColor = [UIColor greenColor];
self.window = window;
[window release];
// this is the home page from the user's perspective
FirstViewController *fvc = [[FirstViewController alloc] init];
UINavigationController *nc = [[UINavigationController alloc]initWithRootViewController:fvc];
self.navigationController = nc;
[fvc release];
[nc release];
// show them
[self.window addSubview: nc.view];
[self.window makeKeyAndVisible];
return YES;
}
@end