iOS启动页加载广告

1、定义全局成员变量

@interface AppDelegate ()

@property (strong, nonatomic) UIImageView *adImageView;

@property (strong, nonatomic) UINavigationController *rootNavi;

@end

2、实现简单广告界面

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];

TextViewController* mainVC = [[TextViewController alloc] init];

UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:mainVC];

self.rootNavi = nav;

if ([[UIDevice currentDevice].systemVersion doubleValue] < 7.0) {

[nav.navigationBar setBarTintColor:[UIColor clearColor]];

} else {

[nav.navigationBar setTintColor:[UIColor clearColor]];

}

注意：一定要设置空的rootViewController

UIViewController *emptyView = [[ UIViewController alloc ] initWithNibName:nil bundle:nil];

self. window .rootViewController = emptyView;

self.adImageView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, ScreenWidth, ScreenHeight)];

[self.adImageView setImage:[UIImage imageNamed:@"bg_welcome"]];

[self.window addSubview:self.adImageView];

[self performSelector:@selector(removeAdImageView) withObject:nil afterDelay:3];

self.window.backgroundColor = [UIColor whiteColor];

[self.window makeKeyAndVisible];

return YES;

}

3、移除广告页重新设置根控制器

- (void)removeAdImageView

{

[UIView animateWithDuration:0.3f animations:^{

self.adImageView.transform = CGAffineTransformMakeScale(0.5f,0.5f);

self.adImageView.alpha = 0.f;

} completion:^(BOOL finished) {

[self.adImageView removeFromSuperview];

//        self.window.rootViewController = self.rootNavi;

[self restoreRootViewController:self.rootNavi];

}];

}

- (void)restoreRootViewController:(UIViewController *)rootViewController

{

typedef void (^Animation)(void);

UIWindow* window = self.window;

rootViewController.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;

Animation animation = ^{

BOOL oldState = [UIView areAnimationsEnabled];

[UIView setAnimationsEnabled:NO];

window.rootViewController = rootViewController;

[UIView setAnimationsEnabled:oldState];

};

[UIView transitionWithView:window

duration:0.5f

options:UIViewAnimationOptionTransitionCrossDissolve

animations:animation

completion:nil];

}

@end

4、如需实现倒计时、跳过只需要自定义View去操作就ok

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