首先打开AppDelegate.m
大家都知道启动页在加载完毕会自动执行AppDelegate didFinishLaunchingWithOptions 函数：
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
return YES;
}
所以直接将加载广告代码写在这个函数里面就对了：
#import "AppDelegate.h"
@interface AppDelegate ()
//启动页view
@property (strong, nonatomic) UIView *LaunchView;
@end
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
//创建window
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.window.backgroundColor = [UIColor whiteColor];
//获取启动页
UIStoryboard *LaunchScreen = [UIStoryboard storyboardWithName:@"LaunchScreen" bundle:nil];
UIViewController *LaunchVC = [LaunchScreen instantiateInitialViewController];
self.LaunchView = LaunchVC.view;
//加载远程广告
[self loadAD];
//设置rootView
self.window.rootViewController = LaunchVC;
[self.window makeKeyAndVisible];
return YES;
}
#pragma mark 加载远程广告
- (void)loadAD
{
//远程图片地址
NSURL *url = [NSURL URLWithString:@"https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1486466389044&di=a7ab421bb82bd0d214bbdc5a6b79f2bf&imgtype=0&src=http%3A%2F%2Fpic.qiantucdn.com%2F58pic%2F17%2F80%2F57%2F94s58PICA7j_1024.jpg"];
//异步加载图片
dispatch_queue_t queue = dispatch_queue_create("loadImage", NULL);
dispatch_async(queue, ^{
//图片资源
NSData *imgData = [NSData dataWithContentsOfURL:url];
UIImage *img = [UIImage imageWithData:imgData];
dispatch_async(dispatch_get_main_queue(), ^{
//创建imageView
UIImageView *adView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, [[UIScreen mainScreen] bounds].size.width, [[UIScreen mainScreen] bounds].size.height)];
adView.image = img;
//添加图片点击手势
UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(clickAD)];
adView.userInteractionEnabled = YES;
[adView addGestureRecognizer:singleTap];
[self.LaunchView addSubview:adView];
//LaunchView前置于window
[self.window bringSubviewToFront:self.LaunchView];
//延迟5秒后删除广告
[self performSelector:@selector(removeAd) withObject:nil afterDelay:5];
});
});
}
#pragma mark 广告点击
- (void)clickAD {
[self removeAd];
}
#pragma mark 删除广告
- (void)removeAd
{
[self.LaunchView removeFromSuperview];
//重新设置rootView
UIStoryboard *main = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
self.window.rootViewController = [main instantiateInitialViewController];
[self.window makeKeyAndVisible];
}
PS：以上图片素材均为网上下载
最终效果：
未命名.gif
github完整Demo:
https://github.com/sg369326973/LaunchLoadAD-Demo
