iOS9：尽可能尝试通过方案打开应用程序，否则重定向到应用程序商店 [英] iOS9: Try to open app via scheme if possible, or redirect to app store otherwise

问题描述

我的问题是仅限iOS9！

我有 HTML 登陆页面，我尝试通过网址方案将用户重定向到我的应用（如果已安装该应用），或者重定向到 Appstore 。

我的代码是：

  document.addEventListener（DOMContentLoaded，function（event）{
 
 var body = document.getElementsByTagName（'body'）[0]; 
 body.onclick = function（）{
 openApp（）; 
}; 
}）; 
 
 var timeout; 
 
函数preventPopup（）{
 
 clearTimeout（timeout）; 
 timeout = null; 
 window.removeEventListener（'pagehide'，preventPopup）; 
} 
 
函数openApp（appInstanceId，platform）{
 
 window.addEventListener（'pagehide'，preventPopup）; 
 document.addEventListener（'pagehide'，preventPopup）; 
 
 //创建iframe 
 var iframe = document.createElement（iframe）; 
 document.body.appendChild（iframe）; 
 iframe.setAttribute（style，display：none;）; 
 iframe.src ='myscheme：// launch？var = val'; 
 
 var timeoutTime = 1000; 
 timeout = setTimeout（function（）{
 
 document.location ='https://itunes.apple.com/app/my-app'; 
 
 }，timeoutTime）; 
} 
  

问题在于 iframe 技巧在 Safari中无法使用 iOS9 。

知道为什么吗？

基于 iframe 技巧.com / questions / 19701708 / how-to-prevent-ios-safari-alert-when-trying-to-open-non-installed-native-app / 25054876＃25054876>这个答案。

解决方案

iframe技巧不再适用 - 我的猜测是Apple知道它会鼓励更多开发人员更快地实施Universal Links。 / p>

您仍然可以设置 window.location ='your-uri-scheme：//'; 并回退到500ms后的App Store。如果采用这种方法，弹出窗口之间会有一种跳舞，就像我们在分支机构中所做的那样（如果你做的话，我们会做一个后备通用链接不起作用）。

  window.location ='your-uri-scheme：//'; //如果未安装app，将导致错误消息
 setTimeout（function（）{
 //应用程序商店的链接应该转到此处 - 只有在深层链接失败时才会触发
 window.location =https://itunes.apple.com/us/app/myapp/id123456789?ls=1&mt=8; 
}，500）; 
  

我希望我有更好的答案。 iOS 9肯定更受限制。

如果您想要了解Universal Link所需的内容，请查看我的答案这里或阅读本教程

My question is about iOS9 only!

I have an HTML landing page, and I try to redirect the user to my app via URL scheme if the app is installed, or redirect to the Appstore otherwise.

My code is:

document.addEventListener("DOMContentLoaded", function(event) {

  var body = document.getElementsByTagName('body')[0];
  body.onclick = function () {
    openApp();
  };
});

var timeout;

function preventPopup() {

    clearTimeout(timeout);
    timeout = null;
    window.removeEventListener('pagehide', preventPopup);
}

function openApp(appInstanceId, platform) {

  window.addEventListener('pagehide', preventPopup);
  document.addEventListener('pagehide', preventPopup);

  // create iframe
  var iframe = document.createElement("iframe");
  document.body.appendChild(iframe);
  iframe.setAttribute("style", "display:none;");
  iframe.src = 'myscheme://launch?var=val';

  var timeoutTime = 1000;
  timeout = setTimeout(function () {

    document.location = 'https://itunes.apple.com/app/my-app';

  }, timeoutTime);
}

The problem is that the iframe trick doesn't work in Safari iOS9.

Any idea why?

My iframe trick based on this answer.

解决方案

The iframe trick no longer works -- my guess is that Apple knows it will encourage more developers to implement Universal Links, more quickly.

You can still set window.location='your-uri-scheme://'; and fallback to the App Store after 500ms. There is a "dance" between popups if you take this approach, as we do at Branch (we do as a fallback if Universal Links don't work).

window.location = 'your-uri-scheme://'; // will result in error message if app not installed
setTimeout(function() {
   // Link to the App Store should go here -- only fires if deep link fails                
   window.location = "https://itunes.apple.com/us/app/myapp/id123456789?ls=1&mt=8";
}, 500);

I wish I had a better answer for you. iOS 9 is definitely more limited.

For a helpful overview of what's needed for Universal Links should you go that route, check out my answer here or read this tutorial

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