How can H5 implement the app wake-up function?

There are several ways to implement the function of launching an app on an H5 page.

1. Using the scheme protocol: Each app usually has a unique scheme protocol, by directly redirecting to this scheme protocol in a HTML5 page, you can launch the corresponding app. For example, you can use the following code for redirection:

<a href="myapp://">点击打开我的App</a>

It is important to note that the scheme protocol must be registered in the app and handled accordingly when the app is invoked.

1. Utilize Universal Links or Deep Linking: This is a more flexible and secure way to invoke the app on different platforms. Universal Links are a mechanism on iOS, while Deep Linking is a mechanism on Android. By adding corresponding meta tags on the HTML5 page, you can redirect to a specific app page. For example, you can use the following code for redirection:

<a href="https://www.example.com/my-app-page">点击打开我的App</a>

It is important to note that the appropriate configurations need to be made on both the app and server side for Universal Links or Deep Linking to work effectively.

1. Determine device type and operating system using JavaScript and User Agent, and then customize the redirection method based on these factors. For example, you can use the following code for this purpose.

<script>
    function openApp() {
        var userAgent = navigator.userAgent.toLowerCase();
        if (userAgent.indexOf("iphone") > -1 || userAgent.indexOf("ipad") > -1) {
            window.location.href = "myapp://";
        } else if (userAgent.indexOf("android") > -1) {
            window.location.href = "intent://#Intent;scheme=myapp;package=com.myapp;end";
        }
    }
</script>

<button onclick="openApp()">点击打开我的App</button>

It is important to note that different judgments and configurations are required based on the type of app and device.

It is important to note that the way of invoking the APP function may vary depending on different devices, operating systems, and browsers, so it is necessary to choose the appropriate way to implement it according to specific needs and environments.