iOS 应用添加开屏广告

在AppDelegate.h中的代码

ocessor" style="color:rgb(203,75,22)">#import <UIKit/UIKit.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;
@property (strong, nonatomic) UIImageView *adImageView;
@property (strong, nonatomic) UINavigationController *rootNavi;

@end

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen]bounds]];
    // Override point for customization after application launch.
    AlertDemoViewController *vc = [[AlertDemoViewController alloc]init];

    UINavigationController *navi = [[UINavigationController alloc]initWithRootViewController:vc];

    if (isIOS7) {
        [navi.navigationBar setBarTintColor:[UIColor clearColor]];
    }else{
        [navi.navigationBar setTintColor:[UIColor clearColor]];
    }
    self.rootNavi = navi;

    //self.window.rootViewController = navi;

    self.adImageView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, [[UIScreen mainScreen] bounds].size.width, [[UIScreen mainScreen]bounds].size.height)];
    [self.adImageView setImage:[UIImage imageNamed:@"tmplecture"]];
    [self.window addSubview:self.adImageView];
    [self performSelector:@selector(removeAdImageView) withObject:nilafterDelay:3];

    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];
    return YES;
}

- (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;
    }];
}

淡入淡出更换 rootViewController

- (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];
}