Add doc for android startup scenario local testing

Author: LoopedBard3

docs/android-startup-scenarios.md

@@ -0,0 +1,35 @@
+
+# Android Startup Test
+
+## Prereqs
+
+- Ensure `dotnet` is installed and available with the `dotnet` command. [Dotnet Download](https://dotnet.microsoft.com/en-us/download) or [Daily Dotnet Download](https://github.com/dotnet/sdk/blob/main/documentation/package-table.md)
+- Ensure `xharness` is installed and available with the `xharness` command. The current version in use can be found in the `eng/performance/maui_scenarios_android.proj` file at line 7 (under the tag `MicrosoftDotNetXHarnessCLIVersion`), although any recent version should work. [XHarness Install Instructions](https://github.com/dotnet/xharness?tab=readme-ov-file#installation-and-usage).
+- Have an Android app APK available for testing.
+
+## Steps
+
+1. Initialize the environment (note the . for bash):
+
+    ```sh
+    cd src/scripts
+    . ./init.sh  # or .\init.ps1 on Windows
+    cd ../
+    ```
+
+2. Navigate to the `helloandroid` scenario directory:
+
+    ```sh
+    cd ./scenarios/helloandroid
+    ```
+
+3. Copy the APK into the `helloandroid` directory.
+4. Run the test:
+
+    ```sh
+    python test.py devicestartup --device-type android --package-path <path to apk (e.g. .)>/<apkname>.apk --package-name <apk package name> [--disable-animations]
+    ```
+
+## Notes
+
+- Example commands and additional logic can be found in the `maui_scenarios_android.proj` and `runner.py` files in the `performance` repository.

docs/scenarios-workflow.md

@@ -12,6 +12,7 @@ This is a general guideline on how the scenario tests are arranged in this repo.
 - [How to run SDK scenario tests](./sdk-scenarios.md)
 - [How to run Crossgen scenario tests](./crossgen-scenarios.md)
 - [How to run Blazor tests](./blazor-scenarios.md)
+- [How to run Android Startup tests](./android-startup-scenarios.md)
 - [How to run other Scenario tests](./basic-scenarios.md)
 
 ### Prerequisites
@@ -138,4 +139,5 @@ Some command options are only applicable for certain test assets. Refer to the c
 - [SDK Command Matrix](./sdk-scenarios.md#command-matrix)
 - [Crossgen Command Matrix](./crossgen-scenarios.md#command-matrix)
 - [Blazor Command Matrix](./blazor-scenarios.md#command-matrix)
+- [How to run Android Startup tests](./android-startup-scenarios.md)
 - [Other Scenarios Command Matrix](./basic-scenarios.md#command-matrix)