Deep links are URL links outside of your application that direct users to a location in your application. When the user clicks a deep link for an application, the operating system opens the Unity application at a specified place (for example, a specific scene). Unity uses the Application.absoluteURL property and Application.deepLinkActivated event to support deep links on the following platforms:
Before you can process deep links, you need to configure your application to react to them. The process to configure an application to react to specific URLs is platform-specific. Unity supports deep links for the following platforms:
To process deep links, you can either:
The following code sample shows you how to process a deep URL and load a scene depending on the URL.
using UnityEngine;
using UnityEngine.SceneManagement;
public class ProcessDeepLinkMngr : MonoBehaviour
{
public static ProcessDeepLinkMngr Instance { get; private set; }
public string deeplinkURL;
private void Awake()
{
if (Instance == null)
{
Instance = this;
Application.deepLinkActivated += onDeepLinkActivated;
if (!string.IsNullOrEmpty(Application.absoluteURL))
{
// Cold start and Application.absoluteURL not null so process Deep Link.
onDeepLinkActivated(Application.absoluteURL);
}
// Initialize DeepLink Manager global variable.
else deeplinkURL = "[none]";
DontDestroyOnLoad(gameObject);
}
else
{
Destroy(gameObject);
}
}
private void onDeepLinkActivated(string url)
{
// Update DeepLink Manager global variable, so URL can be accessed from anywhere.
deeplinkURL = url;
// Decode the URL to determine action.
// In this example, the app expects a link formatted like this:
// unitydl://mylink?scene1
string sceneName = url.Split('?')[1];
bool validScene;
switch (sceneName)
{
case "scene1":
validScene = true;
break;
case "scene2":
validScene = true;
break;
default:
validScene = false;
break;
}
if (validScene) SceneManager.LoadScene(sceneName);
}
}
To test a deep link:
This is an example HTML file that you can use to test deep links. To redirect the link, change the href attribute in one of the <a> elements.
<html>
<head>
<meta http-equiv=Content-Type content="text/html; charset=windows-1252">
</head>
<body >
<h1>My Deep Link Test page</h1>
<p><a href="unitydl://mylink">Launch</a></p>
<p><a href="unitydl://mylink?parameter">Launch with Parameter</a></p>
</body>
</html>