iOSAPP启动时实现加载广告

现在很多APP在启动的时候都在加载广告，现在也很流行，主要是盈利啊。笔者也做了很多关于广告的事情。现在记录下自己在APP启动的时候，怎么加载广告的。

下面总结下广告加载的三种方式

1.现在很多APP的广告不是在程序启动的时候开始请求广告的，而是直接加载广告的图片链接。可以在程序启动完后给个特定的时间去请求广告，并缓存到数据库。广告平台也是建议这样做的，可以节省用户的打开程序的时间。但是这种方法是有缺点的，就是广告的时常，一般的广告的平台都是55分钟左右展示是有效的。（如果有自己的广告商，还是建议这样使用）

2.直接在启动的时候才开始去请求广告，并把广告加载出来，这个不用考虑广告的时常，但是要考虑APP的启动的时间，这样会有两个网络的请求，会比较耗时（笔者的APP也是这样的效果，我写的demo也是这样的效果）

3.在APP启动的时候直接加载广告的图片，图片是上次启动请求广告，并将广告保存到本地的（主要实用：自己有广告商）

先看下笔者的效果

Untitled.gif

其实这个上面笔者是直接present一个控制器来显示广告，当广告显示完成之后，直接dis掉的，只是把他的效果给自定义了

- (void)viewDidLoad {
[super viewDidLoad];

_imageView = [[UIImageView alloc]initWithFrame:self.view.bounds];

_imageView.image = [UIImage imageNamed:@"6"];
[self.view addSubview:_imageView];

UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(0, 200, self.view.frame.size.width, 50)];
label.text = @"七秒记忆鱼儿注，转注请署名七秒记忆的鱼儿";
label.textColor = [UIColor redColor];
label.textAlignment = NSTextAlignmentCenter;

[self.view addSubview:label];

#warning 注意  必须盖住
[self.view bringSubviewToFront:_imageView];
}
-(void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
OneViewController *one = [[OneViewController alloc]init];
one.myBlock = ^(BOOL isClick){
    _isClick = isClick;
    [_imageView removeFromSuperview];
    _imageView = nil;
};
if (_isClick == NO) {
    [self presentViewController:one animated:NO completion:nil];
}

}

主要的操作还是实现了两个定时器来操作的，_waitRequestTimer是用来判定请求广告时间的，大于多少后直接就进入APP，_adsAccordingTimer这个定时器用来显示广告的，如果超出一定的时间加载广告也会进入APP

 - (void)viewDidLoad {
[super viewDidLoad];
self.transitioningDelegate = self;
_LaunchImage = [[UIImageView alloc]initWithFrame:self.view.bounds];
_LaunchImage.image = [UIImage imageNamed:@"6"];
[self.view addSubview:_LaunchImage];
[self requestAds];
_seconds = 6;
_waitRequestTimer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(Waiting) userInfo:nil repeats:YES];
 }
-(void)requestAds
{
// 模拟网络请求
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
    [self addUI];
    [_waitRequestTimer invalidate];
});
}
 -(void)Waiting
{
_seconds--;
if (_seconds == 0) {
    [self myLog];
}
}
/**
*  添加广告上面的UI
*/
-(void)addUI{

_adsImageView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, width, 0.87*height)];
dispatch_async(dispatch_get_global_queue(0, 0), ^{
    NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:@"http://i.l.inmobicdn.net/banners/FileData/290057e6-a662-411d-86bb-688b3c284460.jpeg"]];
    UIImage *main_image = [UIImage imageWithData:data];

    dispatch_async(dispatch_get_main_queue(), ^{
        _adsImageView.image = main_image;
    });
});
[_LaunchImage addSubview:_adsImageView];
/**
 *  显示倒计时的时间按钮
 *
 */
_time_btton = [self addButtonWithImagename:@"miaoshu" andTitle:@"5S" andFram:CGRectMake(width-70, 30, 50, 30)];
/**
 *  创建倒计时
 *
 */
_adsAccordingTimer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(timerAccord) userInfo:nil repeats:YES];
_adsAccording_Integer = 6;
}
/**
 *  广告的倒计时
 */
-(void)timerAccord
{
_adsAccording_Integer--;
[_time_btton setTitle:[NSString stringWithFormat:@"%zd",_adsAccording_Integer] forState:0];
if (_adsAccording_Integer <=  0) {
    [self myLog];
}
/**等于2秒时显示直接接入按钮*/
if (_adsAccording_Integer == 2) {
    _jump_button  = [self addButtonWithImagename:@"tiaoguo" andTitle:@"直接进入>" andFram:CGRectMake(width-150,height*0.83-60, 120, 45)];
    [_jump_button setTitleColor:[UIColor whiteColor] forState:0];
    _jump_button.titleLabel.font = [UIFont systemFontOfSize:15];
    [_jump_button addTarget:self action:@selector(myLog) forControlEvents:UIControlEventTouchUpInside];
}
 }
/**
   *  点击进入按钮
  */
-(void)myLog
{
 self.myBlock(YES);
[self dismissViewControllerAnimated:YES completion:^{
    [_waitRequestTimer invalidate];
    [_adsAccordingTimer invalidate];
}];
}
 /**
*  创建广告上面的button按钮
*
*  @param imageName 按钮的图片
*  @param title     按钮的文字
*  @param btnFram   按钮的fram
*
*  @return 返回按钮
*/
 -(UIButton *)addButtonWithImagename:(NSString *)imageName andTitle:(NSString *)title andFram:(CGRect)btnFram{

UIButton *button =[[UIButton alloc]initWithFrame:btnFram];
[button setContentHorizontalAlignment:UIControlContentHorizontalAlignmentCenter];
[button setBackgroundImage:[UIImage imageNamed:imageName] forState:0];
[button setTitle:title forState:0];
button.titleLabel.font = [UIFont systemFontOfSize: 12.0];
[button setTitleColor:[UIColor grayColor]forState:UIControlStateNormal];
[_adsImageView addSubview:button];
return button;
 }
 - (id<UIViewControllerAnimatedTransitioning>)animationControllerForPresentedController:(UIViewController *)presented presentingController:(UIViewController *)presenting sourceController:(UIViewController *)source
{
return [AAPLCrossDissolveTransitionAnimator new];
}
-   (id<UIViewControllerAnimatedTransitioning>)animationControllerForDismissedController:(UIViewController *)dismissed
{
return [AAPLCrossDissolveTransitionAnimator new];
}

下载完整的demo那就猛戳这里

文／七秒记忆的鱼儿（简书作者）
原文链接：http://www.jianshu.com/p/6d613c957a36
著作权归作者所有，转载请联系作者获得授权，并标注“简书作者”。