Update Android UI test instructions

[adrianknight89]

Added instructions for running Android UI tests on Windows.

@PureWeen @jfversluis @samhouts When I debug the test project on Windows, ApkPath isn't correct for me. We go 3 folders up from the current directory and append a substring to point to the Apk file, but I noticed my current directory does not point to the solution directory. It points to the Temp folder instead.

static IApp InitializeAndroidApp()
{
	var directory = Directory.GetCurrentDirectory(); // added this line for testing

	var app = ConfigureApp.Android.ApkFile(AppPaths.ApkPath).Debug().StartApp();

	if (bool.Parse((string)app.Invoke("IsPreAppCompat")))
	{
		IsFormsApplicationActivity = true;
	}

	return app;
}

directory returns C:\Users\[user]\AppData\Local\Temp for me. So, when we go 3 levels up and then append the rest of ApkPath, I end up with

C:/Users/[user]/Xamarin.Forms.ControlGallery.Android/bin/Debug/AndroidControlGallery.AndroidControlGallery-Signed.apk which is not correct because it's missing the parent folder I checked out XF solution to. Any of you saw this issue before?

Temporarily, I hard-coded the path to the Apk in local, but I'd like to know the root cause of this issue if possible.

[rmarinho]

Hum, yeah I have the same issue, but it does work fine on the Mac no ?

[adrianknight89]

@rmarinho I develop on Windows, so I saw it there. Not sure about Mac.