Java 将Unity3D场景导入Android片段

我在网上搜索过类似的问题，虽然我找到了几个类似的问题，但没有一个有可靠的答案，这就是为什么我在这里发帖的原因

当Unity3D项目为Android编译时，它基本上只是将场景作为一个活动提供，您可以开始/结束/等等。我想将此活动更改为一个片段，以便将其显示为导航抽屉中的选项卡，以及另一个片段/活动中的子视图

所以基本上我有一个带有打开按钮的

main活动

，还有一个

UnityPlayerNativeActivity

，这是实际的Unity3D项目

我搜索了如何将常规活动更改为片段，并将

UnityPlayerActiveActivity

更改为匹配。例如，在下面新标题的

UnityPlayerNativeFragment

中（注释反映了与以前完全不同的内容）：

AndroidManifest.xml

：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.SamerBekhazi.Test" android:versionName="1.0" android:versionCode="1" android:installLocation="preferExternal">
  <supports-screens android:smallScreens="true" android:normalScreens="true" android:largeScreens="true" android:xlargeScreens="true" android:anyDensity="true" />
  <application android:theme="@style/AppTheme" android:icon="@drawable/app_icon" android:label="@string/app_name">
    <activity android:launchMode="singleTask" android:label="@string/app_name" android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen" android:screenOrientation="portrait" android:name=".HomeActivity">
      <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
      </intent-filter>
      <meta-data android:name="unityplayer.ForwardNativeEventsToDalvik" android:value="false" />
    </activity>
  </application>
  <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="21" />
  <uses-feature android:glEsVersion="0x00020000" />
</manifest>

这里到底出了什么问题？目标版本是Android 5.0，我使用的是Android Studio 0.8.14。

---

值得注意的是：当场景是一项活动时，我能够成功地将其加载到我的Nexus 5上。

尝试这种方式，它会在我身边工作

1.在活动中创建UnityPlayer

    private UnityPlayer mUnityPlayer;
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mUnityPlayer = new UnityPlayer(this);

2.关于碎片

私人MyActivity社区MainActivity；
专用单位层市政层；
查看playerView；
@覆盖
创建视图上的公共视图（更平坦的充气机，
@Nullable视图组容器，@Nullable Bundle savedInstanceState）{
//TODO自动生成的方法存根
mUnityMainActivity=（MyActivity）getActivity（）；
mUnityPlayer=mUnityMainActivity.GetUnityPlayer（）；
playerView=mUnityPlayer.getView（）；
LayoutParams lp=新的LayoutParams（LayoutParams.FILL\u父级，LayoutParams.FILL\u父级）；
playerView.setLayoutParams（lp）；
if（playerView.getParent（）！=null）{
（（ViewGroup）playerView.getParent（））.removeAllViews（）；
        }
返回playerView；
}

通过上面提供的帮助和以下链接，我成功地将其集成到一个片段中：

在活动中采用标准方法至关重要

下文将详细阐述：

在保存片段的活动中（

MyActivity

）：

• 声明变量UnityPlayer mUnityPlayer

• 这将触发导入

  import com.unity3d.player.UnityPlayer
  
  

• 在下面添加所有覆盖代码

  //region Lifecycle methods
  @Override
  protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    mUnityPlayer = new UnityPlayer(this);
  }
  
  /** FOR UNITY **/
  @Override
  protected void onPause() {
    super.onPause();
    mUnityPlayer.pause();
  }
  
  // Resume Unity
  @Override protected void onResume()
  {
    super.onResume();
    mUnityPlayer.resume();
  }
  
  // Low Memory Unity
  @Override public void onLowMemory()
  {
    super.onLowMemory();
    mUnityPlayer.lowMemory();
  }
  
  // Trim Memory Unity
  @Override public void onTrimMemory(int level)
  {
    super.onTrimMemory(level);
    if (level == TRIM_MEMORY_RUNNING_CRITICAL)
    {
        mUnityPlayer.lowMemory();
    }
  }
  
  // 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.
  @Override public void onWindowFocusChanged(boolean hasFocus)
  {
    super.onWindowFocusChanged(hasFocus);
    mUnityPlayer.windowFocusChanged(hasFocus);
  }
  
  // For some reason the multiple keyevent type is not supported by the ndk.
  // Force event injection by overriding dispatchKeyEvent().
  @Override public boolean dispatchKeyEvent(KeyEvent event)
  {
    if (event.getAction() == KeyEvent.ACTION_MULTIPLE)
        return mUnityPlayer.injectEvent(event);
    return super.dispatchKeyEvent(event);
  }
  
  // Pass any events not handled by (unfocused) views straight to UnityPlayer
  @Override public boolean onKeyUp(int keyCode, KeyEvent event)     { return mUnityPlayer.injectEvent(event); }
  @Override public boolean onKeyDown(int keyCode, KeyEvent event)   { return mUnityPlayer.injectEvent(event); }
  @Override public boolean onTouchEvent(MotionEvent event)          { return mUnityPlayer.injectEvent(event); }
  
  /*API12*/ public boolean onGenericMotionEvent(MotionEvent event)  { return mUnityPlayer.injectEvent(event); }
  
  @Override
  protected void onDestroy() {
    super.onDestroy();
    mUnityPlayer.quit();
  }
  

在片段中：

• 变量声明私有MyActivity MyActivity

• 变量声明：私有UnityPlayer UnityPlayer

• 这将触发“导入com.unity3d.player.UnityPlayer；”

• 以下代码

  @Nullable
  @Override
  public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
  myActivity = (MyActivity) getActivity();
  View unityPlayViewer = calibActivity.mUnityPlayer.getView();
  new Handler().postDelayed(() -> initialize(), 5000);
  return unityPlayViewer;
  }
  
  private void initialize() {
  calibActivity.mUnityPlayer.UnitySendMessage("your commands to Unity to start playing");
  }
  

---

你做到了吗？没有，我最终使用了与Unity完全不同的东西，原因有很多。

//region Lifecycle methods
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  mUnityPlayer = new UnityPlayer(this);
}

/** FOR UNITY **/
@Override
protected void onPause() {
  super.onPause();
  mUnityPlayer.pause();
}

// Resume Unity
@Override protected void onResume()
{
  super.onResume();
  mUnityPlayer.resume();
}

// Low Memory Unity
@Override public void onLowMemory()
{
  super.onLowMemory();
  mUnityPlayer.lowMemory();
}

// Trim Memory Unity
@Override public void onTrimMemory(int level)
{
  super.onTrimMemory(level);
  if (level == TRIM_MEMORY_RUNNING_CRITICAL)
  {
      mUnityPlayer.lowMemory();
  }
}

// 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.
@Override public void onWindowFocusChanged(boolean hasFocus)
{
  super.onWindowFocusChanged(hasFocus);
  mUnityPlayer.windowFocusChanged(hasFocus);
}

// For some reason the multiple keyevent type is not supported by the ndk.
// Force event injection by overriding dispatchKeyEvent().
@Override public boolean dispatchKeyEvent(KeyEvent event)
{
  if (event.getAction() == KeyEvent.ACTION_MULTIPLE)
      return mUnityPlayer.injectEvent(event);
  return super.dispatchKeyEvent(event);
}

// Pass any events not handled by (unfocused) views straight to UnityPlayer
@Override public boolean onKeyUp(int keyCode, KeyEvent event)     { return mUnityPlayer.injectEvent(event); }
@Override public boolean onKeyDown(int keyCode, KeyEvent event)   { return mUnityPlayer.injectEvent(event); }
@Override public boolean onTouchEvent(MotionEvent event)          { return mUnityPlayer.injectEvent(event); }

/*API12*/ public boolean onGenericMotionEvent(MotionEvent event)  { return mUnityPlayer.injectEvent(event); }

@Override
protected void onDestroy() {
  super.onDestroy();
  mUnityPlayer.quit();
}

@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
myActivity = (MyActivity) getActivity();
View unityPlayViewer = calibActivity.mUnityPlayer.getView();
new Handler().postDelayed(() -> initialize(), 5000);
return unityPlayViewer;
}

private void initialize() {
calibActivity.mUnityPlayer.UnitySendMessage("your commands to Unity to start playing");
}