Objective c ios选项卡栏自定义图像
我在Objective c ios选项卡栏自定义图像,objective-c,ios,Objective C,Ios,我在ios应用程序中工作，我需要自定义tabbar以使其像 首先，我在导航控制器中创建了5个视图控制器 然后将它们放入tabbbarcontroller 我在谷歌上搜索这个问题，找到了解决办法 [self.tabBarItem setFinishedSelectedImage:<#(UIImage *)#> withFinishedUnselectedImage:<#(UIImage *)#>] [self.tabBarItem setFinishedSelectedI
iostabbartabbbarcontroller[self.tabBarItem setFinishedSelectedImage:<#(UIImage *)#> withFinishedUnselectedImage:<#(UIImage *)#>]
[self.tabBarItem setFinishedSelectedImage:With FinishedSelectedImage:]
但它是针对iOS 5的，我需要iOS 4和iOS 5的解决方案 在AppDelegate.m文件中，添加以下代码。在这段代码中，我们创建了四个视图，并将它们添加到选项卡控制器中。这些视图现在是空的，因为我们不需要在其中包含任何内容
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UITabBarController *tabController = [[UITabBarController alloc] init];
UIViewController *viewController1 = [[UIViewController alloc] init];
UIViewController *viewController2 = [[UIViewController alloc] init];
UIViewController *viewController3 = [[UIViewController alloc] init];
UIViewController *viewController4 = [[UIViewController alloc] init];
tabController.viewControllers = [NSArray arrayWithObjects:viewController1,
viewController2,
viewController3,
viewController4, nil];
self.window.rootViewController = tabController;
[self.window makeKeyAndVisible];
return YES;
}
您可以在AppDelegate.m文件中看到一个很好的教程，添加以下代码。在这段代码中，我们创建了四个视图，并将它们添加到选项卡控制器中。这些视图现在是空的，因为我们不需要在其中包含任何内容
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UITabBarController *tabController = [[UITabBarController alloc] init];
UIViewController *viewController1 = [[UIViewController alloc] init];
UIViewController *viewController2 = [[UIViewController alloc] init];
UIViewController *viewController3 = [[UIViewController alloc] init];
UIViewController *viewController4 = [[UIViewController alloc] init];
tabController.viewControllers = [NSArray arrayWithObjects:viewController1,
viewController2,
viewController3,
viewController4, nil];
self.window.rootViewController = tabController;
[self.window makeKeyAndVisible];
return YES;
}
您可以看到一个很好的教程用于在ios4中自定义选项卡栏，该教程的代码不可用，您需要为我们定制选项卡栏，您可以参考此文档 或者，您也可以像下面这样制作完整的选项卡栏图像的简单逻辑 在这里，我在appdel上做了一个图像视图，并在应用程序中完成了类似的操作
self.imgV.frame=CGRectMake(0, 431, 320, 49);
[self.tabbarcontroller.view addSubview:self.imgV];
- (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController{
NSUInteger index=[[tabBarController viewControllers] indexOfObject:viewController];
NSString *deviceType = [UIDevice currentDevice].model;
NSLog(@"Device%@",deviceType);
if(UI_USER_INTERFACE_IDIOM()==UIUserInterfaceIdiomPad){
// self.imgV.frame=CGRectMake(0, 975, 768, 49);
//[self.tabbarcontroller.view addSubview:self.imgV];
switch (index) {
case 0:
self.imgV.image=[UIImage imageNamed:@"reservation_tab~iPad.png"];
break;
case 1:
self.imgV.image=[UIImage imageNamed:@"place_order_tab~iPad.png"];
break;
case 2:
self.imgV.image=[UIImage imageNamed:@"location_tab~iPad.png"];
break;
case 3:
self.imgV.image=[UIImage imageNamed:@"favorite_tab~iPad.png"];
break;
case 4:
self.imgV.image=[UIImage imageNamed:@"signature_dishes_tab~iPad.png"];
break;
case 5:
self.imgV.image=[UIImage imageNamed:@"history_tab~iPad.png"];
break;
case 6:
self.imgV.image=[UIImage imageNamed:@"contact_us_tab~iPad.png"];
break;
default:
break;
}
}
else{
switch (index) {
case 0:
self.imgV.image=[UIImage imageNamed:@"reservation_tab.png"];
break;
case 1:
self.imgV.image=[UIImage imageNamed:@"place_order_tab.png"];
break;
case 2:
self.imgV.image=[UIImage imageNamed:@"location_tab.png"];
break;
case 3:
self.imgV.image=[UIImage imageNamed:@"favorite_tab.png"];
break;
case 4:
self.imgV.image=[UIImage imageNamed:@"gallery_tab.png"];
break;
default:
break;
}
}
return YES;
}
对于ios4中的自定义选项卡栏，代码不可用，您需要为我们自定义选项卡栏，您可以参考此Que 或者，您也可以像下面这样制作完整的选项卡栏图像的简单逻辑 在这里，我在appdel上做了一个图像视图，并在应用程序中完成了类似的操作
self.imgV.frame=CGRectMake(0, 431, 320, 49);
[self.tabbarcontroller.view addSubview:self.imgV];
- (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController{
NSUInteger index=[[tabBarController viewControllers] indexOfObject:viewController];
NSString *deviceType = [UIDevice currentDevice].model;
NSLog(@"Device%@",deviceType);
if(UI_USER_INTERFACE_IDIOM()==UIUserInterfaceIdiomPad){
// self.imgV.frame=CGRectMake(0, 975, 768, 49);
//[self.tabbarcontroller.view addSubview:self.imgV];
switch (index) {
case 0:
self.imgV.image=[UIImage imageNamed:@"reservation_tab~iPad.png"];
break;
case 1:
self.imgV.image=[UIImage imageNamed:@"place_order_tab~iPad.png"];
break;
case 2:
self.imgV.image=[UIImage imageNamed:@"location_tab~iPad.png"];
break;
case 3:
self.imgV.image=[UIImage imageNamed:@"favorite_tab~iPad.png"];
break;
case 4:
self.imgV.image=[UIImage imageNamed:@"signature_dishes_tab~iPad.png"];
break;
case 5:
self.imgV.image=[UIImage imageNamed:@"history_tab~iPad.png"];
break;
case 6:
self.imgV.image=[UIImage imageNamed:@"contact_us_tab~iPad.png"];
break;
default:
break;
}
}
else{
switch (index) {
case 0:
self.imgV.image=[UIImage imageNamed:@"reservation_tab.png"];
break;
case 1:
self.imgV.image=[UIImage imageNamed:@"place_order_tab.png"];
break;
case 2:
self.imgV.image=[UIImage imageNamed:@"location_tab.png"];
break;
case 3:
self.imgV.image=[UIImage imageNamed:@"favorite_tab.png"];
break;
case 4:
self.imgV.image=[UIImage imageNamed:@"gallery_tab.png"];
break;
default:
break;
}
}
return YES;
}
#import <UIKit/UIKit.h>
@class MapViewController,MenuViewController;
@interface UITabBar (ColorExtensions)
- (void)recolorItemsWithColor:(UIColor *)color shadowColor:(UIColor *)shadowColor shadowOffset:(CGSize)shadowOffset shadowBlur:(CGFloat)shadowBlur;
@end
@interface UITabBarItem (Private)
@property(retain, nonatomic) UIImage *selectedImage;
- (void)_updateView;
@end
@interface SegmentedControlExampleAppDelegate : NSObject <UIApplicationDelegate> {
UIWindow * window;
UINavigationController * navigationController;
NSMutableArray *breads;
NSMutableArray *categorys;
NSMutableArray *collections;
NSString *databaseName;
NSString *databasePath;
MapViewController *mapViewController;
MenuViewController *wvTutorial;
}
@property (nonatomic, retain) IBOutlet UIWindow * window;
@property (nonatomic, retain) UINavigationController * navigationController;
@property (nonatomic,retain) NSMutableArray *breads;
@property (nonatomic,retain) NSMutableArray *categorys;
@property (nonatomic,retain) NSMutableArray *collections;
@property (nonatomic, retain) UITabBarController *tabBarController;
@property (nonatomic, retain) MenuViewController *wvTutorial;
@end
In .m file
#import "SegmentedControlExampleAppDelegate.h"
#import "SegmentManagingViewController.h"
#import "sqlite3.h"
#import "AtoZHomePageViewController.h"
#import "CategoryViewHomePage.h"
#import "CollectionsListHomePageViewController.h"
#import "AboutUs.h"
#import "StoreLocatorViewController.h"
#import "UINavigationBar+CustomImage.h"
#import "MenuViewController.h"
@implementation UITabBar (ColorExtensions)
- (void)recolorItemsWithColor:(UIColor *)color shadowColor:(UIColor *)shadowColor shadowOffset:(CGSize)shadowOffset shadowBlur:(CGFloat)shadowBlur
{
CGColorRef cgColor = [color CGColor];
CGColorRef cgShadowColor = [shadowColor CGColor];
for (UITabBarItem *item in [self items])
if ([item respondsToSelector:@selector(selectedImage)] &&
[item respondsToSelector:@selector(setSelectedImage:)] &&
[item respondsToSelector:@selector(_updateView)])
{
CGRect contextRect;
contextRect.origin.x = 0.0f;
contextRect.origin.y = 0.0f;
contextRect.size = [[item selectedImage] size];
// Retrieve source image and begin image context
UIImage *itemImage = [item image];
CGSize itemImageSize = [itemImage size];
CGPoint itemImagePosition;
itemImagePosition.x = ceilf((contextRect.size.width - itemImageSize.width) / 2);
itemImagePosition.y = ceilf((contextRect.size.height - itemImageSize.height) / 2);
UIGraphicsBeginImageContext(contextRect.size);
CGContextRef c = UIGraphicsGetCurrentContext();
// Setup shadow
CGContextSetShadowWithColor(c, shadowOffset, shadowBlur, cgShadowColor);
// Setup transparency layer and clip to mask
CGContextBeginTransparencyLayer(c, NULL);
CGContextScaleCTM(c, 1.0, -1.0);
CGContextClipToMask(c, CGRectMake(itemImagePosition.x, -itemImagePosition.y, itemImageSize.width, -itemImageSize.height), [itemImage CGImage]);
// Fill and end the transparency layer
CGContextSetFillColorWithColor(c, cgColor);
contextRect.size.height = -contextRect.size.height;
CGContextFillRect(c, contextRect);
CGContextEndTransparencyLayer(c);
// Set selected image and end context
[item setSelectedImage:UIGraphicsGetImageFromCurrentImageContext()];
UIGraphicsEndImageContext();
// Update the view
[item _updateView];
}
}
@end
@implementation SegmentedControlExampleAppDelegate
@synthesize window,tabBarController, navigationController,breads,categorys,collections,wvTutorial;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
databaseName = @"ProductsConnect_Master.sqlite";
NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [documentPaths objectAtIndex:0];
databasePath = [documentsDir stringByAppendingPathComponent:databaseName];
self.tabBarController = [[UITabBarController alloc] init];
UIViewController *viewController = [[AboutUs alloc] initWithNibName:@"AboutUs" bundle:nil];
UIViewController *viewController2 = [[StoreLocatorViewController alloc] initWithNibName:@"StoreLocatorViewController" bundle:nil];
//UIViewController *viewController3 = [[MenuViewController alloc] initWithNibName:@"MenuViewController" bundle:nil];
self.wvTutorial = [[MenuViewController alloc]initWithNibName:@"MenuViewController" bundle:nil];
SegmentManagingViewController * segmentManagingViewController = [[SegmentManagingViewController alloc] init];
self.navigationController = [[UINavigationController alloc] initWithRootViewController:segmentManagingViewController];
tabBarController.viewControllers = [NSArray arrayWithObjects:navigationController,viewController ,viewController2,wvTutorial , nil];
[[UITabBar appearance]
setTintColor: [UIColor colorWithRed:120.0f/255.0f green:69.0f/255.0f blue:50.0f/255.0f alpha:1.0f]];
[[UITabBar appearance] setSelectedImageTintColor:[UIColor colorWithRed:255.0f/255.0f green:252.0f/255.0f blue:235.0f/255.0f alpha:1.0f]];
//[[UITabBar appearance]
// setBackgroundColor: [UIColor colorWithRed:255.0f/255.0f green:252.0f/255.0f blue:235.0f/255.0f alpha:0.8f]];
navigationController.title = NSLocalizedString(@"HomePage", @"HomePage");
navigationController.tabBarItem.image = [UIImage imageNamed:@"logoSmall"];
[[UIApplication sharedApplication] setStatusBarHidden:YES];
UIImage *navImage = [UIImage imageNamed:@"logoSmall.png"];
// self.navigationItem.setImage: navImage;
[[navigationController navigationBar] performSelectorInBackground:@selector(setBackgroundImage:) withObject:navImage];
// UIImage *navImage = [UIImage imageNamed:@"logoSmall.png"];
//[[navigationController navigationBar] performSelectorInBackground:@selector(setBackgroundImage:) withObject:navImage];
[self.window addSubview:tabBarController.view];
[segmentManagingViewController release];
//[window addSubview:self.navigationController.view];
[window makeKeyAndVisible];
return YES;
}
#导入
@类MapViewController，MenuViewController；
@接口UITabBar（颜色扩展）
-（void）recolorItemsWithColor:（UIColor*）color shadowColor:（UIColor*）shadowColor shadowOffset:（CGSize）shadowOffset shadowBlur:（CGFloat）shadowBlur；
@结束
@接口UItabaritem（专用）
@属性（保留，非原子）UIImage*selectedImage；
-（无效）_updateView；
@结束
@接口SegmentedControlExampleAppDelegate:NSObject{
UIWindow*窗口；
UINavigationController*导航控制器；
NSMutableArray*面包；
NSMutableArray*类别；
NSMutableArray*集合；
NSString*数据库名；
NSString*数据库路径；
MapViewController*MapViewController；
菜单视图控制器*wvTutorial；
}
@属性（非原子，保留）IBUIWindow*window；
@属性（非原子，保留）UINavigationController*navigationController；
@属性（非原子，保留）NSMutableArray*面包；
@属性（非原子，保留）NSMutableArray*类别；
@属性（非原子，保留）NSMutableArray*集合；
@属性（非原子，保留）UITabBarController*tabBarController；
@属性（非原子，保留）菜单viewcontroller*wvTutorial；
@结束
在.m文件中
#导入“SegmentedControlExampleAppDelegate.h”
#导入“SegmentManagingViewController.h”
#导入“sqlite3.h”
#导入“AtoZHomePageViewController.h”
#导入“CategoryViewHomePage.h”
#导入“CollectionsListHomePageViewController.h”
#导入“AboutUs.h”
#导入“StoreLocatorViewController.h”
#导入“UINavigationBar+CustomImage.h”
#导入“MenuViewController.h”
@实现UITabBar（颜色扩展）
-（void）recolorItemsWithColor:（UIColor*）颜色阴影颜色：（UIColor*）阴影颜色阴影偏移：（CGSize）阴影偏移阴影模糊：（CGFloat）阴影模糊
{
CGColorRef cgColor=[color cgColor]；
CGColorRef cgShadowColor=[shadowColor CGColor]；
对于（uitabaritem*项目在[self items]中）
如果（[项目响应选择器：@selector（selectedImage）]&&
[项目响应选择器：@selector（setSelectedImage:）]&&
[项目响应选择器：@selector（_updateView）]）
{
CGRect contextRect；
contextRect.origin.x=0.0f；
contextRect.origin.y=0.0f；
contextRect.size=[[item selectedImage]size]；
//检索源图像并开始图像上下文
UIImage*itemImage=[项目图像]；
CGSize itemImageSize=[itemImageSize]；
CG点位置；
itemImagePosition.x=ceilf（（contextRect.size.width-itemImageSize.width）/2）；
itemImagePosition.y=ceilf（（contextRect.size.height-itemImageSize.height）/2）；
UIGraphicsBeginImageContext（contextRect.size）；
CGContextRef c=UIGraphicsGetCurrentContext（）；
//设置阴影
CGContextSetShadowWithColor（c、阴影偏移、阴影模糊、cgShadowColor）；
//设置透明度层和剪辑到遮罩
CGContextBeginTransparencyLayer（c，NULL）；
CGContextScaleCTM（c，1.0，-1.0）；
CGContextClipToMask（c，CGRectMake（itemImagePosition.x，-itemImagePosition.y，itemImageSize.width，-itemImageSize.height），[itemImageCgImage]）；
//填充并结束透明层
CGContextSetFillColorWithColor（c，cgColor）；
contextRect.size.height=-contextRect.size.height；
CGContextFillRect（c，contextRect）；
CGContextEndTransparencyLayer（c）；
//设置所选图像和结束上下文
[item setSelectedImage:UIGraphicsGetImageFromCurrentImageContext（）]；
UIGraphicsSendImageContext（）；
//更新视图
[项目_updateView]；
}
}
@结束
@实现分段控制ExampleAppDelegate
@合成窗口、tabBarController、导航控制器、面包、类别、集合、wvTutorial；
-（布尔）