TabBar支持Three20 iPhone照片库
我通过这篇教程讨论并为iPhone创建了一个照片库。 现在我想将它添加到我的TabBar项目中。 我已经听说,Three20不支持XIB,所以我改变了我的整个标签栏设置编程。 我想我离最终的解决方案并不太远。
我能够在一个标签中获得照片库,但没有功能(点击图片 - >打开等)。 页面顶部没有导航到详细图像页面的导航。 当我从应用程序委托中的didFinishLaunchingWithOptions-method中删除此问题时遇到此问题:
// Override point for customization after application launch
TTNavigator* navigator = [TTNavigator navigator];
TTURLMap* map = navigator.URLMap;
[map from:@"demo://album" toViewController: [AlbumController class]];
[navigator openURLAction:[TTURLAction actionWithURLPath:@"demo://album"]];
return YES;
我不得不删除它,否则整个标签栏不显示。 照片库使用整个屏幕。 我不确定它是否仅显示或未加载。 我也试过:
tabbar.hidesBottomBarWhenPushed = NO;
但那根本不起作用。 我尝试将TTNavigator代码添加到AlbumController本身的loadView(),viewDidLoad()和init()中,但没有结果。 有谁知道我必须把它放在哪里才能使它工作?
我的AlbumController.h:
#import <Foundation/Foundation.h>
#import <Three20/Three20.h>
@interface AlbumController : TTThumbsViewController {
// images
NSMutableArray *images;
// parser
NSXMLParser * rssParser;
NSMutableArray * stories;
NSMutableDictionary * item;
NSString * currentElement;
NSMutableString * currentImage;
NSMutableString * currentCaption;
}
@property (nonatomic, retain) NSMutableArray *images;
@end
而我的didFinishLaunchingWithOptions方法的实现:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// set up tab bar controller
tabBarController = [[UITabBarController alloc] init];
albumController = [[AlbumController alloc] init];
firstViewController = [[FirstViewController alloc] init];
secondViewController = [[SecondViewController alloc] init];
firstViewController.delegateRef = self;
tabBarController.viewControllers = [NSArray arrayWithObjects:firstViewController, secondViewController, albumController, nil];
[window addSubview:tabBarController.view];
[window makeKeyAndVisible];
// Override point for customization after application launch
TTNavigator* navigator = [TTNavigator navigator];
TTURLMap* map = navigator.URLMap;
[map from:@"demo://album" toViewController: [AlbumController class]];
[navigator openURLAction:[TTURLAction actionWithURLPath:@"demo://album"]];
return YES;
}
谢谢你们,干杯,dooonot
好吧,在布赖恩的帮助下,我能够使照片库在标签栏应用程序中运行。 我已经看到很多人在寻找这个解决方案,所以我尽力解释它。
似乎不能在Interface Builder中使用Three20,所以你必须手动设置你的标签栏应用程序。 这是我的Three20PhotoGalleryAppDelegate.h:
#import <UIKit/UIKit.h>
#import <CoreData/CoreData.h>
#import "AlbumController.h"
#import "SecondViewController.h"
#import "FirstViewController.h"
@class TabBarAppViewController;
@class AlbumController;
@class SecondViewController;
@class FirstViewController;
@interface Three20PhotoGalleryAppDelegate : NSObject <UIApplicationDelegate> {
UIWindow *window;
UITabBarController *tabBarController;
AlbumController *albumController;
FirstViewController *firstViewController;
SecondViewController *secondViewController;
@private
NSManagedObjectContext *managedObjectContext_;
NSManagedObjectModel *managedObjectModel_;
NSPersistentStoreCoordinator *persistentStoreCoordinator_;
}
@property (nonatomic, retain) IBOutlet UIWindow *window;
@property (nonatomic, retain) UITabBarController *tabBarController;
@property (nonatomic, retain) AlbumController *albumController;
@property (nonatomic, retain) SecondViewController *secondViewController;
@property (nonatomic, retain) FirstViewController *firstViewController;
@property (nonatomic, retain, readonly) NSManagedObjectContext *managedObjectContext;
@property (nonatomic, retain, readonly) NSManagedObjectModel *managedObjectModel;
@property (nonatomic, retain, readonly) NSPersistentStoreCoordinator *persistentStoreCoordinator;
- (NSURL *)applicationDocumentsDirectory;
- (void)saveContext;
@end
请确保你创建了一个新的UITabBarController以及所有的ViewController。 让我们继续我的Three20PhotoGalleryAppDelegate.m:
#import "Three20PhotoGalleryAppDelegate.h"
#import "AlbumController.h"
#import "SecondViewController.h"
#import "FirstViewController.h"
#import <Three20/Three20.h>
@implementation Three20PhotoGalleryAppDelegate
@synthesize window;
@synthesize albumController;
@synthesize firstViewController;
@synthesize secondViewController;
@synthesize tabBarController;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// set up tab bar controller manually
tabBarController = [[UITabBarController alloc] init];
albumController = [[AlbumController alloc] init];
firstViewController = [[FirstViewController alloc] init];
secondViewController = [[SecondViewController alloc] init];
/* This is the essential part of the solution. You have to add the albumController to a
new navigation controller and init it as RootViewController*/
UINavigationController* navController = [[[UINavigationController alloc] initWithRootViewController:albumController] autorelease];
// now add all controllers to the tabBarController
tabBarController.viewControllers = [NSArray arrayWithObjects:firstViewController, secondViewController, navController, nil];
[window addSubview:tabBarController.view];
[window makeKeyAndVisible];
}
- (BOOL)application:(UIApplication*)application handleOpenURL:(NSURL*)URL {
TTOpenURL([URL absoluteString]);
return YES;
}
- (void)dealloc {
[tabBarController release];
[window release];
[super dealloc];
}
@end
请注意,你不需要教程中的TTNavigator。 现在我们必须让我们的照相馆如何。 我在教程中构建它在AlbumController中。 这是我的AlbumController.h:
#import <Foundation/Foundation.h>
#import <Three20/Three20.h>
@interface AlbumController : TTThumbsViewController {
}
@property (nonatomic, retain) NSMutableArray *images;
@end
你可以在上面的教程中找到AlbumController的实现。 现在AlbumController.m:
#import "AlbumController.h"
#import "PhotoSource.h"
#import "Photo.h"
@implementation AlbumController
@synthesize images;
- (id)init
{
if (self = [super init])
{
// Initialization code
self.title = @"Photo Gallery";
self.hidesBottomBarWhenPushed=NO;
}
return self;
}
- (void)viewDidLoad {
[self createPhotos]; // method to set up the photos array
self.photoSource = [[PhotoSource alloc]
initWithType:PhotoSourceNormal
title:@"All in Vain"
photos:images
photos2:nil];
}
-(void)createPhotos {
// your independent implementation
}
@end
如上面问题描述中所述,我的照片库始终使用全屏幕。 这很糟糕,因为您无法再使用标签栏图标。 为此,你必须添加
self.hidesBottomBarWhenPushed=NO;
到上面的AlbumController-init-method中提到的init()方法。
Sooo,就是这么多。 我真的希望有人可以重新使用我的解决方案。 再次感谢Bryan。
干杯,干杯
PS:我在github上创建了一个项目。 你可以在这里下载示例应用程序。
尝试这个:
tBarController = [[UITabBarController alloc] init];
actionController = [[ActionController alloc] initWithNibName:nil bundle:nil];
// Override point for customization after application launch.
TTNavigator* navigator = [TTNavigator navigator];
TTURLMap* map = navigator.URLMap;
[map from:@"demo://album" toViewController:tBarController];
[tBarController setViewControllers:
[NSArray arrayWithObjects:actionController,nil]];
[navigator openURLAction:[TTURLAction actionWithURLPath:@"demo://album"]];
[self.window addSubview:tBarController.view];
[self.window makeKeyAndVisible];
return YES;
您可以使用TTNavigatorDemo示例来了解如何使用Tab Bar控制器。
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