Reflecting Assemblies on Mono for Android - reflection

Question

I'm creating an app "plugin" dll that loads at run-time for my Mono for Android App and starts a new Activity. (the app will be installed ad-hoc - so no comments on downloading executable code)
I'm coming from Obj-C on iOS - where you can include .nibs and ViewControllers in a library.
I can have the main Android app and the loaded dll both reference another common dll, and load objects just fine.
The following works:
var test = plugin.CreateInstance("Test.Satellite.testClass");
MethodInfo getString = test.GetType().GetMethod("getString");
MethodInfo tryPatient = test.GetType().GetMethod("tryPatient");
Where
public class testClass
{
public string getString ()
{
return "This was read from the object";
}
public string tryPatient ()
{
Patient p = new Patient();
p.Name = "This was created from the Core/Common DLL";
return p.Name;
}
}
However, when I try to load an Activity (either through CreateInstance or Intent/StartActivity) it gives the following exception:
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Exception: test.satellite.RootActivity
at Android.Runtime.JNIEnv.FindClass (System.String classname) [0x00087] in /Users/builder/data/lanes/monodroid-mac-monodroid-4.2.7-branch/0e9eea34/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.cs:275
at Android.Runtime.JNIEnv.FindClass (System.Type type) [0x00009] in /Users/builder/data/lanes/monodroid-mac-monodroid-4.2.7-branch/0e9eea34/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.cs:233
--- End of managed exception stack trace ---
java.lang.NoClassDefFoundError: test.satellite.RootActivity
at test.MainActivity.n_onCreate(Native Method)
at test.MainActivity.onCreate(MainActivity.java:29)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
at android.app.ActivityThread.access$2200(ActivityThread.java:119)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4363)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: test.satellite.RootActivity in loader dalvik.system.PathClassLoader#44e8c678
at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
... 15 more
--- End of inner exception stack trace ---
at System.Reflection.MonoMethod.Invoke (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo) <IL 0x000e0, 0x00670>
at System.Reflection.MethodBase.Invoke (object,object[]) <IL 0x00006, 0x0008f>
at Test.MainActivity.OnCreate (Android.OS.Bundle) [0x001e9] in /Users/stephen/Projects/test/test/MainActivity.cs:86
at Android.App.Activity.n_OnCreate_Landroid_os_Bundle_ (intptr,intptr,intptr) [0x00010] in /Users/builder/data/lanes/monodroid-mac-monodroid-4.2.7-branch/0e9eea34/source/monodroid/src/Mono.Android/platforms/android-8/src/generated/Android.App.Activity.cs:1490
at (wrapper dynamic-method) object.ca46b703-b14e-4853-b371-499ea96364fc (intptr,intptr,intptr) <IL 0x00012, 0x00033>
What I can read from that is that the Dalvik can't find the class test.satellite.RootActivity - but it found test.satellite.testClass just fine...?
Any help would be appreciated.

Answer 1

It looks like you are inconsistent about the casing of packages. Might that be the problem?
"Test.Satellite.testClass" -- works
"test.satellite.RootActivity" -- doesn't work