Java Unity-Native Android插件中不触发dispatchKeyEvent

我想在Android中触发onKeyUp或dispatchKeyEvent，并向按键的Unity3D发送一条消息

我制作了一个Java本机插件，包括：

public class VolumeKeyClass extends Activity {

    @Override
    public boolean onKeyUp(int keyCode, KeyEvent event) {
        Log.d("Unity","onKeyUp UP");
        int action = event.getAction();
        switch (keyCode) {
            case KeyEvent.KEYCODE_VOLUME_UP:
                if (action == KeyEvent.ACTION_DOWN) {
                    Log.d("test", "Volume UP pressed! " + event);
             UnityPlayer.UnitySendMessage("MainController","logStatus","Volume up!!");
                }
                return true;
            case KeyEvent.KEYCODE_VOLUME_DOWN:
                if (action == KeyEvent.ACTION_DOWN) {
                    Log.d("test", "Volume DOWN pressed! " + event);
                    UnityPlayer.UnitySendMessage("MainController","logStatus","Volume Down!");
                }
                return true;
            default:
                return super.dispatchKeyEvent(event);
        }
    }

---

已经测试过Unity和插件之间的通信是否正确记录了消息，但onKeyUp或dispatchKeyEvent未触发发送消息，也未触发Logcat。（目标API 15，冰淇淋三明治）

您必须像这样使用OnKeyListener：

   public class VolumeKeyClass extends Activity {

        void InitializeKeyListener ()
        {
           OnKeyListener keyListener = new OnKeyListener() {
        @Override
        public boolean onKeyUp(int keyCode, KeyEvent event) {
            Log.d("Unity","onKeyUp UP");
            int action = event.getAction();
            switch (keyCode) {
                case KeyEvent.KEYCODE_VOLUME_UP:
                    if (action == KeyEvent.ACTION_DOWN) {
                        Log.d("test", "Volume UP pressed! " + event);
                 UnityPlayer.UnitySendMessage("MainController","logStatus","Volume up!!");
                    }
                    return true;
                case KeyEvent.KEYCODE_VOLUME_DOWN:
                    if (action == KeyEvent.ACTION_DOWN) {
                        Log.d("test", "Volume DOWN pressed! " + event);
                        UnityPlayer.UnitySendMessage("MainController","logStatus","Volume Down!");
                    }
                    return true;
                default:
                    return super.dispatchKeyEvent(event);
            }
           };
        }
    }

---

您必须像这样使用OnKeyListener：

   public class VolumeKeyClass extends Activity {

        void InitializeKeyListener ()
        {
           OnKeyListener keyListener = new OnKeyListener() {
        @Override
        public boolean onKeyUp(int keyCode, KeyEvent event) {
            Log.d("Unity","onKeyUp UP");
            int action = event.getAction();
            switch (keyCode) {
                case KeyEvent.KEYCODE_VOLUME_UP:
                    if (action == KeyEvent.ACTION_DOWN) {
                        Log.d("test", "Volume UP pressed! " + event);
                 UnityPlayer.UnitySendMessage("MainController","logStatus","Volume up!!");
                    }
                    return true;
                case KeyEvent.KEYCODE_VOLUME_DOWN:
                    if (action == KeyEvent.ACTION_DOWN) {
                        Log.d("test", "Volume DOWN pressed! " + event);
                        UnityPlayer.UnitySendMessage("MainController","logStatus","Volume Down!");
                    }
                    return true;
                default:
                    return super.dispatchKeyEvent(event);
            }
           };
        }
    }

---

您需要使用“+=”注册事件。请参见以下内容：AJO=newandroidjavaobject（“com.company.volumekeyslibrary.VolumeKeyClass”）；在我的主脚本的Start（）中。在插件构造函数中，我有一个线程执行，用于向unity发送一条保持活动的消息。请将所有信息放入问题中，而不是将其隐藏在注释中。您需要使用“+=”注册事件。请参见以下内容：AJO=newandroidjavaobject（“com.company.volumekeyslibrary.VolumeKeyClass”）；在我的主脚本的Start（）中。在插件构造器中，我有一个线程执行，向unity发送一条保持活动的消息。请将所有信息放入问题中，而不是将其隐藏在注释中。