参考XHLaunchAd https://github.com/CoderZhuXH/XHLaunchAd
温馨提示：由于有复制的代码，文章少长，建议在大屏上阅读，效果更佳！
看代码
+(XHLaunchAd *)imageAdWithImageAdConfiguration:(XHLaunchImageAdConfiguration *)imageAdconfiguration delegate:(id)delegate{
XHLaunchAd *launchAd = [XHLaunchAd shareLaunchAd];
if(delegate) launchAd.delegate = delegate;
launchAd.imageAdConfiguration = imageAdconfiguration;
return launchAd;
}
+(XHLaunchAd *)shareLaunchAd{
static XHLaunchAd *instance = nil;
static dispatch_once_t oneToken;
dispatch_once(&oneToken,^{
instance = [[XHLaunchAd alloc] init];
});
return instance;
}
- (instancetype)init{
self = [super init];
if (self) {
XHWeakSelf
[self setupLaunchAd];
[[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationWillEnterForegroundNotification object:nil queue:nil usingBlock:^(NSNotification * _Nonnull note) {
[self setupLaunchAdEnterForeground];
}];
[[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationDidEnterBackgroundNotification object:nil queue:nil usingBlock:^(NSNotification * _Nonnull note) {
[self removeOnly];
}];
[[NSNotificationCenter defaultCenter] addObserverForName:XHLaunchAdDetailPageWillShowNotification object:nil queue:nil usingBlock:^(NSNotification * _Nonnull note) {
weakSelf.detailPageShowing = YES;
}];
[[NSNotificationCenter defaultCenter] addObserverForName:XHLaunchAdDetailPageShowFinishNotification object:nil queue:nil usingBlock:^(NSNotification * _Nonnull note) {
weakSelf.detailPageShowing = NO;
}];
}
return self;
}
-(void)setupLaunchAd{
UIWindow *window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
window.rootViewController = [XHLaunchAdController new];
window.rootViewController.view.backgroundColor = [UIColor clearColor];
window.rootViewController.view.userInteractionEnabled = NO;
window.windowLevel = UIWindowLevelStatusBar + 1;
window.hidden = NO;
window.alpha = 1;
_window = window;
/** 添加launchImageView */
[_window addSubview:[[XHLaunchImageView alloc] initWithSourceType:_sourceType]];
_window.backgroundColor = [UIColor redColor];
}
-(void)setImageAdConfiguration:(XHLaunchImageAdConfiguration *)imageAdConfiguration{
_imageAdConfiguration = imageAdConfiguration;
_launchAdType = XHLaunchAdTypeImage;
[self setupImageAdForConfiguration:imageAdConfiguration];
}
/**图片*/
-(void)setupImageAdForConfiguration:(XHLaunchImageAdConfiguration *)configuration{
if(_window == nil) return;
[self removeSubViewsExceptLaunchAdImageView];
XHLaunchAdImageView *adImageView = [[XHLaunchAdImageView alloc] init];
[_window addSubview:adImageView];
/** frame */
if(configuration.frame.size.width>0 && configuration.frame.size.height>0) adImageView.frame = configuration.frame;
if(configuration.contentMode) adImageView.contentMode = configuration.contentMode;
/** webImage */
if(configuration.imageNameOrURLString.length && XHISURLString(configuration.imageNameOrURLString)){ // 网络图片
[XHLaunchAdCache async_saveImageUrl:configuration.imageNameOrURLString]; // 磁盘保存图片地址
/** 自设图片 */
if ([self.delegate respondsToSelector:@selector(xhLaunchAd:launchAdImageView:URL:)]) { // 使用三方框架或自己加载网络图片
[self.delegate xhLaunchAd:self launchAdImageView:adImageView URL:[NSURL URLWithString:configuration.imageNameOrURLString]];
}else{
if(!configuration.imageOption) configuration.imageOption = XHLaunchAdImageDefault;
XHWeakSelf
[adImageView xh_setImageWithURL:[NSURL URLWithString:configuration.imageNameOrURLString] placeholderImage:nil GIFImageCycleOnce:configuration.GIFImageCycleOnce options:configuration.imageOption GIFImageCycleOnceFinish:^{
//GIF不循环,播放完成
[[NSNotificationCenter defaultCenter] postNotificationName:XHLaunchAdGIFImageCycleOnceFinishNotification object:nil userInfo:@{@"imageNameOrURLString":configuration.imageNameOrURLString}];
} completed:^(UIImage *image,NSData *imageData,NSError *error,NSURL *url){
if(!error){
#pragma clang diagnostic push
#pragma clang diagnostic ignored"-Wdeprecated-declarations"
if ([weakSelf.delegate respondsToSelector:@selector(xhLaunchAd:imageDownLoadFinish:)]) {
[weakSelf.delegate xhLaunchAd:self imageDownLoadFinish:image];
}
#pragma clang diagnostic pop
if ([weakSelf.delegate respondsToSelector:@selector(xhLaunchAd:imageDownLoadFinish:imageData:)]) {
[weakSelf.delegate xhLaunchAd:self imageDownLoadFinish:image imageData:imageData];
}
}
}];
if(configuration.imageOption == XHLaunchAdImageCacheInBackground){
/** 缓存中未有 */
if(![XHLaunchAdCache checkImageInCacheWithURL:[NSURL URLWithString:configuration.imageNameOrURLString]]){
[self removeAndAnimateDefault]; return; /** 完成显示 */
}
}
}
}else{ // 本地图片
if(configuration.imageNameOrURLString.length){
NSData *data = XHDataWithFileName(configuration.imageNameOrURLString);
if(XHISGIFTypeWithData(data)){
FLAnimatedImage *image = [FLAnimatedImage animatedImageWithGIFData:data];
adImageView.animatedImage = image;
adImageView.image = nil;
__weak typeof(adImageView) w_adImageView = adImageView;
adImageView.loopCompletionBlock = ^(NSUInteger loopCountRemaining) {
if(configuration.GIFImageCycleOnce){
[w_adImageView stopAnimating];
XHLaunchAdLog(@"GIF不循环,播放完成");
[[NSNotificationCenter defaultCenter] postNotificationName:XHLaunchAdGIFImageCycleOnceFinishNotification object:@{@"imageNameOrURLString":configuration.imageNameOrURLString}];
}
};
}else{
adImageView.animatedImage = nil;
adImageView.image = [UIImage imageWithData:data];
}
#pragma clang diagnostic push
#pragma clang diagnostic ignored"-Wdeprecated-declarations"
if ([self.delegate respondsToSelector:@selector(xhLaunchAd:imageDownLoadFinish:)]) {
[self.delegate xhLaunchAd:self imageDownLoadFinish:[UIImage imageWithData:data]];
}
#pragma clang diagnostic pop
}else{
XHLaunchAdLog(@"未设置广告图片");
}
}
/** skipButton */
[self addSkipButtonForConfiguration:configuration];
[self startSkipDispathTimer];
/** customView */
if(configuration.subViews.count>0) [self addSubViews:configuration.subViews];
XHWeakSelf
adImageView.click = ^(CGPoint point) {
[weakSelf clickAndPoint:point];
};
}
疑问
1.XH中的window是怎么显示的？
设置了UIWindowLevelStatusBar属性
window.windowLevel = UIWindowLevelStatusBar + 1;
创建的window不用添加到任何控件上，创建完后就自动添加到window上了，但要想优先显示windowLevel 必须大于等于当前的window level 才会展示在上层。
[[UIApplication sharedApplication] keyWindow]获取正在显示的UIWindow是极其不准确的
销毁window的正确方式：
window.hidden = YES;
window = nil;
（注：iOS之后使用了SceneDelegate需要进行适配 https://www.jianshu.com/p/60bab1258efc）
自定义
1.用自己的方式加载图片
/**
如果你想用SDWebImage等框架加载网络广告图片,请实现此代理,注意:实现此方法后,图片缓存将不受XHLaunchAd管理
@param launchAd XHLaunchAd
@param launchAdImageView launchAdImageView
@param url 图片url
*/
-(void)xhLaunchAd:(XHLaunchAd *)launchAd launchAdImageView:(UIImageView *)launchAdImageView URL:(NSURL *)url;
实现该代理便能用我们自己的方式去加载图片，如使用YYWebImage去加载webp格式的图片。
思路
1.使用一个单例来加载广告页
2.创建一个配置类对象，设置所需的一些配置，如：图片地址、图片位置、倒计时类型等，并把这个配置类赋值给单例的相应属性
3.创建一个window，在该window上添加广告页
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