Mark app as a game?

[FATCatAndroid12]

This should allow devices to detect that this app is a game and apply additional performance improvements or enable additional game-related services, such as Samsung's Game Booster.

[hrydgard]

How exactly do you do that?

[FATCatAndroid12]

+7
Original file line number	Diff line number	Diff line change
@@ -19,7 +19,14 @@
        android:label="@string/app_name"
        android:networkSecurityConfig="@xml/network_security_config"
        android:supportsRtl="true"
        android:appCategory="game"
        android:isGame="true"
        android:theme="@style/AppTheme">
        <meta-data
            android:name="android.game_mode_config"
            android:resource="@xml/game_mode_config" />
        <activity
            android:name=".ui.romlist.RomListActivity"
            android:theme="@style/SplashTheme"
Diff for:[‎app/src/main/res/xml/game_mode_config.xml](https://github.com/rafaelvcaetano/melonDS-android/commit/89d2899d6464ee0dece870bbdb2655012a1affab#diff-72391b5ff25c66f90034db8695b53a09ce4fa37935c6356b0e606b7d608d9861)
+4
Original file line number	Diff line number	Diff line change
@@ -0,0 +1,4 @@
<?xml version="1.0" encoding="utf-8"?>
<game-mode-config xmlns:android="http://schemas.android.com/apk/res/android"
    android:supportsBatteryGameMode="false"
    android:supportsPerformanceGameMode="false" />

[anr2me]

This might help https://stackoverflow.com/questions/50174122/non-game-app-gets-treated-as-game-by-samsung-game-launcher

And based on https://gist.github.com/Adnan-Bacic/718eb3b4e70380696c91dc21c4804112

Basically all the answers were the same: The problem is the applicationId. Certain applicationId's just seem to be categorized as games by Samsung.
...
So it seems like Samsung has an automatic game detection system of some sort, based on the applicationId. But its obviously not perfect and it appears that they can manually override it themselves.

We probably need to contact Samsung to add our AppId into their Game Launcher/Booster's game list if it's not detected automatically.

[hrydgard]

I could add

android:appCategory="game"

to the manifest, though we already have the older

android:isGame="true"

However, we do not currently query the game optimization mode, like described here to https://developer.android.com/games/optimize/adpf/gamemode/gamemode-api . It's a bit unclear how we should optimize for battery or performance without overriding user settings in unexpected ways.