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@marshall
marshall / ClassLoaderActivity.java
Created February 22, 2011 17:16
A reflection hack to override the APK ClassLoader so you can launch Activities in an external JAR.
//
// !!WARNING: Not recommended for production code!!
//
public class ClassLoaderActivity extends Activity
{
public void onCreate(Bundle savedInstanceState)
{
// file.jar has a dex'd "classes.dex" entry that you can generate with "dx" from any number of JARs or class files
ClassLoader dexLoader = new DexClassLoader("/path/to/file.jar", getCacheDir().getAbsolutePath(), null, getClassLoader());
setAPKClassLoader(dexLoader);