- (void)applicationDidFinishLaunching:(UIApplication *)application {
NSError *error = nil;
NSString *username = [[NSUserDefaults standardUserDefaults] objectForKey:@"username"];
NSString *str = [SFHFKeychainUtils getPasswordForUsername:username andServiceName:@"mybibleapp" error:&error];
NSLog(@"previous un");
NSLog(@"%@", str);
if(str != nil)
{
main_page *detailViewController = [[main_page alloc] initWithNibName:@"main_page" bundle:nil];
// Pass the selected object to the new view controller.
// detailViewController.localStringtextnote = localStringtextnote;
[self.navigationController pushViewController:detailViewController animated:YES];
[detailViewController release];
}
当我将此代码导航到main_page时,它显示错误property navigationController not found on object of appdelegate
所以我把这段代码放在上面
main_page *log = [[main_page alloc] initWithNibName:@"main_page" bundle:nil];
[window addSubview:tabController.view];
[window addSubview:log.view];
[window makeKeyAndVisible];
页面被重定向到main_page,但没有任何方法以这种方式工作。 main_page中没有导航工作,我无法重定向main_page中的任何页面。那么我该怎么做才能解决这些错误。
答案 0 :(得分:1)
你可以创建一个没有nib的“proxy”viewController,它在MainWindow的navigationController中加载,然后在代理的viewDidLoad
中执行类似下面的操作NSError *error = nil;
NSString *username = [[NSUserDefaults standardUserDefaults] objectForKey:@"username"];
NSString *str = [SFHFKeychainUtils getPasswordForUsername:username andServiceName:@"mybibleapp" error:&error];
NSLog(@"previous un");
NSLog(@"%@", str);
UIViewController *controller;
if (!error && nil != str) {
controller = [[DetailViewController alloc] init];
} else {
controller = [[LoginViewController alloc] init];
}
[[self navigationController] pushViewController:controller animated:YES];
[controller release];
答案 1 :(得分:0)
初始页面加载通常在MainWindow.xib笔尖中处理。您不必手动加载它。
尝试从模板创建一个新项目,然后查看如何设置appDelegate和MainWindow.xib。