How do I check whether another application is installed?

Unity Engine
,
1

Hi,
I’m making a new game now and I want to put a particular feature. I want to include a character from my previous game as an unlockable that will only come out if you download the previous game(Not a requirement in the game. Just an optional extra feature).
I need to know the code to check whether another application is installed to make this work.
Please, any ideas ?

2

Don’t know if this is a valid solution for you, but I saw sometime ago a piece of code around stackoverflow that does exactly this. You can have a look at PackageManager  |  Android Developers if needed and write a plugin for it. Don’t know if it can be done directly from Unity though.

Cheers.

3

I’m not positive, never tried, but wouldn’t using player prefs to have common variables across games work? I might be wrong, as each game might use unique player prefs…but if not, you could have a bool like HasPlayedMyOtherGame == true;

Someone let me know if this is impossible or not!

4

@ hexdump … Thanks. I’ll take a deeper look into this and let you both know when I work it out.
@ MD_Reptile … I think every game has it’s unique PlayerPrefs . The last game I made also had a demo version with the same PlayerPrefs but still worked separately on the same device.

Thanks for the response … I may send you direct messages with my solution when I’m done.

5

Hi smyte100, have you found out how to detect if another app is installed on the device with unity?

6

You have to use Java code for checking
https://sites.google.com/site/androidhowto/how-to-1/detect-if-an-app-is-installed

7

AndroidJavaClass up = new AndroidJavaClass(“com.unity3d.player.UnityPlayer”);
AndroidJavaObject ca = up.GetStatic(“currentActivity”);
AndroidJavaObject packageManager = ca.Call(“getPackageManager”);
Debug.Log(" ********LaunchOtherApp ");
AndroidJavaObject launchIntent = null;
//if the app is installed, no errors. Else, doesn’t get past next line
try{
launchIntent = packageManager.Call(“getLaunchIntentForPackage”,bundleID);

}catch(UnityException ex){
Debug.Log(“exception”+ex.Message);
}
if(launchIntent == null)
return false;
return true;

8

Im sorry to bump this thread. Im searching about to do the same but with windows 10. Is there any way?