Activity转View实现Tab切换

Activity转View实现Tab切换 

public View activityToView(Context parent, Intent intent) {

        final Window w = mLocalActivityManager.startActivity("id", intent);
        final View wd = w != null ? w.getDecorView() : null;
        if (wd != null) {
            wd.setVisibility(View.VISIBLE);
            wd.setFocusableInTouchMode(true);
            ((ViewGroup) wd)
                    .setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
        }
        return wd;
    }