2 unity projects in one android studio

hi Sara!

first you have to export unity and your scenes as android and check google development. Afterwards, you open any android project. 1.File ->new->import module ... and you select your unity project. 2.Open the gradle of your unity project (ex.build.gradle( Module:unity)) and you delete "apply plugin:..." and applicationId and instead you add at the top "apply plugin: 'com.android.library'" 3.You go to File->project structure and in modules you select your app.Then in dependencies, you press the + -> module dependency and you select your unity project. 4.In java UnityPlayerActivity you extend the activity as Fragment, and you add this code:

public class UnityPlayerActivity extends Fragment {

 protected UnityPlayer mUnityPlayer; // don't change the name of this variable; referenced from native code
 private static final String ARG_SECTION_NUMBER = "section_number";
 public static UnityPlayerActivity newInstance(int sectionNumber) {
     UnityPlayerActivity fragment = new UnityPlayerActivity();
     Bundle args = new Bundle();
     args.putInt(ARG_SECTION_NUMBER, sectionNumber);
     fragment.setArguments(args);
     return fragment;
 }
 public View onCreateView(LayoutInflater inflater, ViewGroup container,
                          Bundle savedInstanceState)
 {
     getActivity().getWindow().takeSurface(null);
     getActivity().setTheme(android.R.style.Theme_NoTitleBar_Fullscreen);
     getActivity().getWindow().setFormat(PixelFormat.RGB_565);
     mUnityPlayer = new UnityPlayer(getActivity());
     if (mUnityPlayer.getSettings ().getBoolean ("hide_status_bar", true)) {
         getActivity().getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                 WindowManager.LayoutParams.FLAG_FULLSCREEN);
     }
     int glesMode = mUnityPlayer.getSettings().getInt("gles_mode", 1);
     boolean trueColor8888 = false;
     mUnityPlayer.init(glesMode, trueColor8888);
     mUnityPlayer.windowFocusChanged(true);
     mUnityPlayer.setX((float)-5);
     View playerView = mUnityPlayer.getView();
     return playerView;
 }
 // Quit Unity
 @Override public void onDestroy ()
 {
     mUnityPlayer.quit();
     super.onDestroy();
 }
 // Pause Unity
 @Override public void onPause()
 {
     super.onPause();
     mUnityPlayer.pause();
 }
 // Resume Unity
 @Override public void onResume()
 {
     super.onResume();
     mUnityPlayer.resume();
 }
 // This ensures the layout will be correct.
 @Override public void onConfigurationChanged(Configuration newConfig)
 {
     super.onConfigurationChanged(newConfig);
     mUnityPlayer.configurationChanged(newConfig);
 }
 // Notify Unity of the focus change.
 public void onWindowFocusChanged(boolean hasFocus)
 {
     super.getActivity().onWindowFocusChanged(hasFocus);
     mUnityPlayer.windowFocusChanged(hasFocus);
 }
 // For some reason the multiple keyevent type is not supported by the ndk.
 // Force event injection by overriding dispatchKeyEvent().
 public boolean dispatchKeyEvent(KeyEvent event)
 {
     if (event.getAction() == KeyEvent.ACTION_MULTIPLE)
         return mUnityPlayer.injectEvent(event);
     return super.getActivity().dispatchKeyEvent(event);
 }
 // Pass any events not handled by (unfocused) views straight to UnityPlayer
 public boolean onKeyUp(int keyCode, KeyEvent event)     { return mUnityPlayer.injectEvent(event); }
 public boolean onKeyDown(int keyCode, KeyEvent event)   { return mUnityPlayer.injectEvent(event); }
 public boolean onTouchEvent(MotionEvent event)          { return mUnityPlayer.injectEvent(event); }
 /*API12*/ public boolean onGenericMotionEvent(MotionEvent event)  { return mUnityPlayer.injectEvent(event); }

}*

1. In UnityPlayerActivity you change protected void to public void! And that's it.. you can use unity as fragment in any activity. Hope it helps...