編輯：關於Android編程
本來想寫幾篇博客，來詳細說明下Unity3d導出android Project然後再進行二次開發的過程，後來發現幾篇博客，過程和我的類似，對於重復的過程我就不寫了，大家參考他的博客就可以了。而且，包括了Unity3d調用android腳本，這一塊我暫時還沒有涉及。
Unity3D游戲開發之Unity與Android交互調用研究
/**
* 主界面
* @author gavin
*
*/
public class MainActivity extends FragmentActivity implements OnClickListener {
private Button btn1;
private Button btn2;
private FragmentManager fm;
View playerView;
private Fragment currentFragment;
private U3dFragment u3dFragment = new U3dFragment();
private MenuOneFragment menuOneFragment = new MenuOneFragment();
private MenuTwoFragment menuTwoFragment = new MenuTwoFragment();
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
Constants.mUnityPlayer = new UnityPlayer(this);
int glesMode = Constants.mUnityPlayer.getSettings().getInt("gles_mode", 1);
boolean trueColor8888 = false;
Constants.mUnityPlayer.init(glesMode, trueColor8888);
fm = getSupportFragmentManager();
setContentView(R.layout.activity_main);
initView();
currentFragment = u3dFragment;
changeFragment(currentFragment);
}
/**
* 初始化控件
*/
private void initView(){
btn1 = (Button) findViewById(R.id.btn1);
btn2 = (Button) findViewById(R.id.btn2);
btn1.setOnClickListener(this);
btn2.setOnClickListener(this);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch(v.getId()){
case R.id.btn1:
Toast.makeText(MainActivity.this, "btn1", Toast.LENGTH_SHORT).show();
if(currentFragment instanceof U3dFragment || currentFragment instanceof MenuTwoFragment){
currentFragment = menuOneFragment;
changeFragment(currentFragment);
}else{
currentFragment = u3dFragment;
changeFragment(currentFragment);
}
break;
case R.id.btn2:
Toast.makeText(MainActivity.this, "btn2", Toast.LENGTH_SHORT).show();
if(currentFragment instanceof U3dFragment || currentFragment instanceof MenuOneFragment){
currentFragment = menuTwoFragment;
changeFragment(currentFragment);
}else{
currentFragment = u3dFragment;
changeFragment(currentFragment);
}
break;
}
}
/**
* 方法用來改變界面
*/
private void changeFragment(Fragment fragment){
FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.content, fragment);
ft.commit();
}
protected void onDestroy ()
{
Constants.mUnityPlayer.quit();
super.onDestroy();
}
// onPause()/onResume() must be sent to UnityPlayer to enable pause and resource recreation on resume.
protected void onPause()
{
super.onPause();
Constants.mUnityPlayer.pause();
}
protected void onResume()
{
super.onResume();
Constants.mUnityPlayer.resume();
}
public void onConfigurationChanged(Configuration newConfig)
{
super.onConfigurationChanged(newConfig);
Constants.mUnityPlayer.configurationChanged(newConfig);
}
public void onWindowFocusChanged(boolean hasFocus)
{
super.onWindowFocusChanged(hasFocus);
Constants.mUnityPlayer.windowFocusChanged(hasFocus);
}
public boolean dispatchKeyEvent(KeyEvent event)
{
if (event.getAction() == KeyEvent.ACTION_MULTIPLE)
return Constants.mUnityPlayer.onKeyMultiple(event.getKeyCode(), event.getRepeatCount(), event);
return super.dispatchKeyEvent(event);
}
}上面是Activity的寫法。
/**
* 展示u3d的界面
* @author gavin
*
*/
public class U3dFragment extends Fragment {
private Activity context;
View playerView;
@Override
public void onAttach(Activity activity) {
// TODO Auto-generated method stub
super.onAttach(activity);
context = activity;
}
@Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater,
@Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
// TODO Auto-generated method stub
playerView = Constants.mUnityPlayer.getView();
LayoutParams lp = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
playerView.setLayoutParams(lp);
if(playerView.getParent() != null){
((ViewGroup)playerView.getParent()).removeAllViews();
}
return playerView;
}
@Override
public void onDestroy() {
// TODO Auto-generated method stub
// Constants.mUnityPlayer.quit();
super.onDestroy();
}
@Override
public void onPause() {
// TODO Auto-generated method stub
super.onPause();
Constants.mUnityPlayer.pause();
}
@Override
public void onResume() {
// TODO Auto-generated method stub
super.onResume();
Constants.mUnityPlayer.resume();
}
}上面是展示U3d視圖的Fragment的寫法。
要注意的有以下幾點：
1.UnityPlayer這個對象被定義為了靜態變量，在MainActivity中進行初始化，在Fragment中進行使用，用來獲取Unity3d的view。
2.在U3dFragment中沒有在onDestroy中，調用quit()方法。
3.在U3dFragment中的onCreateView（）方法中，進行了下面的處理。
((ViewGroup)playerView.getParent()).removeAllViews();
對於上面三個問題，如果不處理會相應的引發下面三個問題。 1.展示U3d視圖的Fragment無法顯示Unity3d的動畫效果。 2.切換頁面的時候會報下面的錯誤： 10-16 13:26:44.927: D/dalvikvm(8170): Unregistering JNI method Lcom/unity3d/player/UnityPlayer;.nativeVideoFrameCallback:VILII
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