Proper method to modify AndroidManifest.xml for small additions

I have read the docs on the Android Manifest here:
https://docs.unity3d.com/Manual/android-manifest.html

I think I understand the concept. I want to add a single parameter to the activity and otherwise leave the generated manifest alone. (Specifically I want to add android:maxAspectRatio="1.86" to the activity tag). How do I do this?

I understand the manifests will be merged, but what does that mean? Do I have to copy the entire default manifest from the unity directory and make my one addition? Is it possible to just include a fragment of XML to be merged?

So far every test I have done just results in merge errors.

Google is really failing me, feel like this would be a common question. Would appreciate any help.

 

+1
I also tried to do that many times and every time I find bad temporary solutions. This time i modified manifest in Play Games plugin folder..;/ but if (when?) this plugin is someday updated I will have to search for bugs again(

 

It's been a while since I had to do this but I'm pretty sure you should be able to just take the default Unity Android manifest, remove everything you don't need, add what you do need, and stick it in Assets/Plugins/Android/AndroidManifest.xml and Unity should merge it. It will have to be a full XML, not a fragment.

Sam

 

You are right, I tried that, but unity overwrites some of its default settings (for final manifest) with my manifest in this folder and always caise troubles. I only want to add one single parameter and leave all other parameters default (which unity generates). It seems like i dont understand something impoetant about all that process:/

 

Hm I guess there is a bug or maybe your situation is just not possible for the Unity manifest merger to handle (it uses a google tool to merge manifests and then also makes some extra changes itself). You might have to export to an Android Studio project and make the changes in there which is a bit of a pain.

Sam