Android：动态卸载apk加载

Question

我正在尝试构建一个允许用户为应用安装其他插件的应用。我正在构建插件模块作为apk并尝试使用DexClassLoader在运行时加载这些类。

当我打电话给非活动课时，它运作正常。当我尝试启动一个活动时，它会给我一个错误，说找不到活动。您是否在AndroidManifest.xml中声明了活动？

有没有办法我可以从我的插件apk中包含资源才能正常工作？

public class MainActivity extends AppCompatActivity {
    private DexClassLoader mDexClassLoader;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        loadApk();

        Button launchBtn = (Button) findViewById(R.id.launch_btn);
        launchBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (mDexClassLoader != null) {
                    try {
                        //Works Fine
                        Class<?> clazz = mDexClassLoader.loadClass("com.dexplugintest.ToastTest");
                        Object object = clazz.newInstance();
                        Method toastMethod = clazz.getMethod("showToast", Context.class, String.class);
                        toastMethod.invoke(object, MainActivity.this, "Hello from test app!");

                        //Gives Error
                        Class calledClass = mDexClassLoader.loadClass("com.dexplugintest.PluginLaunchActivity");
                        Intent intent = new Intent(MainActivity.this, calledClass);
                        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                        startActivity(intent);
                    } catch (Exception exception) {
                        // Handle exception gracefully here.
                        exception.printStackTrace();
                    }
                }
            }
        });
    }

    private void loadApk() {
        File file = DexUtil.copyFileToInternal(this, "app-debug.apk");

        if (file != null) {
            File optimizedDexOutputPath = getDir("outdex", Context.MODE_PRIVATE);
            mDexClassLoader = new DexClassLoader(file.getAbsolutePath(),
                    optimizedDexOutputPath.getAbsolutePath(),
                    null,
                    getClassLoader());
        }
    }
}