activity 启动另外一个activity作为子view

        mLocalActivityManager = new LocalActivityManager(this, true);
        mLocalActivityManager.dispatchCreate(mBundle);
        Intent intent = new Intent(this, BirthdayListFragmentView.class);
        Window subActivity = mLocalActivityManager.startActivity("birthday_lt", intent);
        View view = subActivity.getDecorView();


        mBirthLayout.removeAllViews();
        mBirthLayout.addView(view);