【Swift】 应用内显示 AppStore 某个应用的详情

时间:2022-02-28 13:24:00

前言

  应用内跳转到 AppStore 的文章很多,一般都是用 SKStoreProductViewController 来实现的,不知道有没有在意一个问题:打开很慢!!怎么忍?!

声明
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正文

  一般网上的文章的代码:

    func openAppStore(url: String){
if let number = url.rangeOfString("[0-9]{9}", options: NSStringCompareOptions.RegularExpressionSearch) {
let appId = url.substringWithRange(number)
let productView = SKStoreProductViewController()
productView.delegate = self
productView.loadProductWithParameters([SKStoreProductParameterITunesItemIdentifier : appId], completionBlock: { [weak self](result: Bool, error: NSError?) -> Void in
if result {
self?.presentViewController(productView, animated: true, completion: nil)
} else {
self?.openAppUrl(url)
}
})
} else {
openAppUrl(url)
}
} private func openAppUrl(url: String) {
let nativeURL = url.stringByReplacingOccurrencesOfString("https:", withString: "itms-apps:")
if UIApplication.sharedApplication().canOpenURL(NSURL(string:nativeURL)!) {
UIApplication.sharedApplication().openURL(NSURL(string:url)!)
}
} func productViewControllerDidFinish(viewController: SKStoreProductViewController) {
viewController.dismissViewControllerAnimated(true, completion: nil)
}

    实现的效果很好,就是很慢,点击按钮调用 openAppStore 要很久才能显示出界面,就算加一个转圈效果也很差。原因是因为要去  linkmaker.itunes.apple.com 根据 identifier 查找链接,仔细看代码我们会发现 presentViewController 是在查找到结果才被调用,其实我们可以不用让界面现出来,虽然时间是一样的,但是用户体验会很好,修改后代码如下:

    func openAppStore(url: String){
if let number = url.rangeOfString("[0-9]{9}", options: NSStringCompareOptions.RegularExpressionSearch) {
let appId = url.substringWithRange(number)
let productView = SKStoreProductViewController()
productView.delegate = self
productView.loadProductWithParameters([SKStoreProductParameterITunesItemIdentifier : appId], completionBlock: { [weak self](result: Bool, error: NSError?) -> Void in
if !result {
productView.dismissViewControllerAnimated(true, completion: nil)
self?.openAppUrl(url)
}
})
self.presentViewController(productView, animated: true, completion: nil)
} else {
openAppUrl(url)
}
} private func openAppUrl(url: String) {
let nativeURL = url.stringByReplacingOccurrencesOfString("https:", withString: "itms-apps:")
if UIApplication.sharedApplication().canOpenURL(NSURL(string:nativeURL)!) {
UIApplication.sharedApplication().openURL(NSURL(string:url)!)
}
} func productViewControllerDidFinish(viewController: SKStoreProductViewController) {
viewController.dismissViewControllerAnimated(true, completion: nil)
}

    代码说明:

      不等 loadProductWithParameters 返回直接 presentViewController ,解析失败再尝试用 openURL 的方式打开。

  参考:

    http://*.com/questions/17871920/odd-behavior-with-skstoreproductviewcontroller

结束

  很早之前写过这个功能,由于用户体验不好代码直接被 revert 掉了,今天又搜了一下找到了办法。