update grade minSdkVersion

Hale Cai

2019-10-19 30feab3c9d8e31c9d25ba8ab4ccf04a53d8d1698

 Project/ky_sdk/src/main/java/com/secondworld/univeralsdk/MainActivity.java

@@ -14,6 +14,7 @@
import android.view.View;
import android.widget.FrameLayout;
import android.widget.RelativeLayout;
import android.view.KeyEvent;

import com.unity3d.player.UnityPlayerActivity;

@@ -207,4 +208,13 @@
        super.onRestart();
    }

    @Override
    public boolean onKeyDown(int i, KeyEvent keyEvent)
    {
        if (i == KeyEvent.KEYCODE_BACK)
        {
            KYPlatformUtil.getInstance().logout();
        }
        return super.onKeyDown(i, keyEvent);
    }
}