#java #android #unity3d #android-fragments
#java #Android #unity3d #android-фрагменты
Вопрос:
У меня есть приложение, в котором пользователь может просматривать разные фрагменты, используя BottomNavigationView, и один из этих фрагментов — приложение Unity3D. Итак, когда я открываю фрагмент Unity, он работает, но когда я открываю другой фрагмент и открываю фрагмент Unity, он вылетает, как мне это исправить, вот мой код.
MainActivity.java
public class MainActivity extends AppCompatActivity {
BottomNavigationView mBottomNavigationView;
NavController mNavController;
NavDestination mDestination;
AppBarConfiguration appBarConfiguration;
String tab;
private boolean doubleBackToExitPressedOnce ;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
boolean b = this.requestWindowFeature(Window.FEATURE_NO_TITLE);
this.setContentView(R.layout.activity_main);
ActionBar mActionBar = getSupportActionBar();
mActionBar.setDisplayShowHomeEnabled(false);
mActionBar.setDisplayShowTitleEnabled(false);
LayoutInflater li = LayoutInflater.from(this);
View customView = li.inflate(R.layout.top_menu_custom, null);
mActionBar.setCustomView(customView);
mActionBar.setDisplayShowCustomEnabled(true);
mBottomNavigationView = (BottomNavigationView) findViewById(R.id.nav_view);
ImageButton profileButton = (ImageButton) customView.findViewById(R.id.profile_button);
ImageButton notificationButton = (ImageButton) customView.findViewById(R.id.noti_button);
profileButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
ProfileFragment profileFragment = new ProfileFragment();
getSupportFragmentManager().beginTransaction()
.replace(R.id.nav_host_fragment,profileFragment)
.addToBackStack(tab)
.setReorderingAllowed(true)
.commit();
mBottomNavigationView.setVisibility(View.GONE);
}
});
notificationButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
NotificationFragment notificationFragment = new NotificationFragment();
getSupportFragmentManager().beginTransaction()
.replace(R.id.nav_host_fragment,notificationFragment)
.addToBackStack(tab)
.setReorderingAllowed(true)
.commit();
mBottomNavigationView.setVisibility(View.GONE);
}
});
mBottomNavigationView.setItemIconTintList(null);
mBottomNavigationView.setItemTextColor(ColorStateList.valueOf(getColor(R.color.black)));
mNavController = Navigation.findNavController(this, R.id.nav_host_fragment);
// Passing each menu ID as a set of Ids because each
// menu should be considered as top level destinations.
appBarConfiguration = new AppBarConfiguration.Builder(
R.id.navigation_home, R.id.navigation_dashboard,R.id.navigation_map, R.id.navigation_card,R.id.navigation_deals)
.build();
NavigationUI.setupActionBarWithNavController(this, mNavController, appBarConfiguration);
NavigationUI.setupWithNavController(mBottomNavigationView, mNavController);
mNavController.addOnDestinationChangedListener(new NavController.OnDestinationChangedListener() {
@Override
public void onDestinationChanged(@NonNull NavController controller, @NonNull NavDestination destination, @Nullable Bundle arguments) {
Toast.makeText(getApplicationContext(),"hi",Toast.LENGTH_SHORT).show();
mDestination = mNavController.getCurrentDestination();
tab = mDestination.toString();
}
});
}
@Override
public void onBackPressed() {
//Toast.makeText(getApplicationContext(), mDestination.toString(),Toast.LENGTH_SHORT).show();
if (doubleBackToExitPressedOnce) {
getSupportFragmentManager().popBackStackImmediate();
mNavController.navigate(mDestination.getId());
mBottomNavigationView.setVisibility(View.VISIBLE);
super.onBackPressed();
return;
}
this.doubleBackToExitPressedOnce = true;
Toast.makeText(this, "Please click BACK again to exit", Toast.LENGTH_SHORT).show();
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
doubleBackToExitPressedOnce=false;
}
}, 2000);
}
UnityMapFragment
public class MapFragment extends Fragment{
protected UnityPlayer mUnityPlayer;
FrameLayout frameLayoutForUnity;
public MapFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
mUnityPlayer = new UnityPlayer(getActivity());
View view = inflater.inflate(R.layout.fragment_map, container, false);
this.frameLayoutForUnity = (FrameLayout) view.findViewById(R.id.frameLayoutForUnity);
this.frameLayoutForUnity.addView(mUnityPlayer.getView(),
FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT);
mUnityPlayer.requestFocus();
mUnityPlayer.windowFocusChanged(true);
return view;
}
@Override
public void onPause() {
super.onPause();
mUnityPlayer.pause();
}
@Override
public void onResume() {
super.onResume();
mUnityPlayer.resume();
}
// Quit Unity
@Override
public void onDestroy ()
{
mUnityPlayer.quit();
super.onDestroy();
}
Комментарии:
1.
it crashes how do i fix this
не могли бы вы опубликовать свой stacktrace
Ответ №1:
Итак, мне удалось найти решение этой проблемы, не знаю, хорошо ли это делать таким образом или нет, но то, что я сделал, это создал экземпляр UnityPlayer в моей MainActivity, и в моем фрагменте я вызываю UnityPlayer, который был установлен в моей основной деятельности.
MainActivity.java
public class MainActivity extends AppCompatActivity {
public BottomNavigationView mBottomNavigationView;
public NavController mNavController;
public NavDestination mDestination;
AppBarConfiguration appBarConfiguration;
String tab;
int onBackTimes = 0;
public UnityPlayer mUnityPlayer; <----Call unity player
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mUnityPlayer = new UnityPlayer(this); <----UNITY PLAYER HERE
boolean b = this.requestWindowFeature(Window.FEATURE_NO_TITLE);
this.setContentView(R.layout.activity_main);
ActionBar mActionBar = getSupportActionBar();
mActionBar.setDisplayShowHomeEnabled(false);
mActionBar.setDisplayShowTitleEnabled(false);
LayoutInflater li = LayoutInflater.from(this);
View customView = li.inflate(R.layout.top_menu_custom, null);
mActionBar.setCustomView(customView);
mActionBar.setDisplayShowCustomEnabled(true);
mBottomNavigationView = (BottomNavigationView) findViewById(R.id.nav_view);
ImageButton profileButton = (ImageButton) customView.findViewById(R.id.profile_button);
ImageButton notificationButton = (ImageButton) customView.findViewById(R.id.noti_button);
profileButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
ProfileFragment profileFragment = new ProfileFragment();
getSupportFragmentManager().beginTransaction()
.replace(R.id.nav_host_fragment,profileFragment)
.addToBackStack(tab)
.setReorderingAllowed(true)
.commit();
mBottomNavigationView.setVisibility(View.GONE);
}
});
notificationButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
NotificationFragment notificationFragment = new NotificationFragment();
getSupportFragmentManager().beginTransaction()
.replace(R.id.nav_host_fragment,notificationFragment)
.addToBackStack(tab)
.setReorderingAllowed(true)
.commit();
mBottomNavigationView.setVisibility(View.GONE);
}
});
mBottomNavigationView.setItemIconTintList(null);
mBottomNavigationView.setItemTextColor(ColorStateList.valueOf(getColor(R.color.black)));
mNavController = Navigation.findNavController(this, R.id.nav_host_fragment);
// Passing each menu ID as a set of Ids because each
// menu should be considered as top level destinations.
appBarConfiguration = new AppBarConfiguration.Builder(
R.id.navigation_home, R.id.navigation_dashboard,R.id.navigation_map, R.id.navigation_card,R.id.navigation_deals)
.build();
NavigationUI.setupActionBarWithNavController(this, mNavController, appBarConfiguration);
NavigationUI.setupWithNavController(mBottomNavigationView, mNavController);
mNavController.addOnDestinationChangedListener(new NavController.OnDestinationChangedListener() {
@Override
public void onDestinationChanged(@NonNull NavController controller, @NonNull NavDestination destination, @Nullable Bundle arguments) {
mDestination = mNavController.getCurrentDestination();
tab = mDestination.toString();
}
});
}
@Override
public void onBackPressed() {
Toast.makeText(this, "Please click BACK again to exit", Toast.LENGTH_SHORT).show();
onBackTimes =1;
if(onBackTimes>1){
LoginActivity.close.finish();
finish();
}
else{
getSupportFragmentManager().popBackStackImmediate();
mBottomNavigationView.setVisibility(View.VISIBLE);
super.onBackPressed();
mNavController.navigate(mDestination.getId());
}
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
onBackTimes=0;
}
}, 2000);
}
@Override
protected void onStop() {
super.onStop();
}
//UNITY STUFF OVER HERE
@Override
protected void onPause() {
super.onPause();
mUnityPlayer.pause();
}
@Override protected void onResume()
{
super.onResume();
mUnityPlayer.resume();
}
@Override
protected void onDestroy(){
super.onDestroy();
}
}
UnityMapFragment
public class MapFragment extends Fragment{
private MainActivity mUnityMainActivity;
private UnityPlayer mUnityPlayer;
public MapFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
//this code calls the UNITYPLAYER from MainActivity and return it here
mUnityMainActivity = (MainActivity) getActivity();
View unityPlayViewer = mUnityMainActivity.mUnityPlayer.getView();
mUnityMainActivity.mUnityPlayer.requestFocus();
mUnityMainActivity.mUnityPlayer.windowFocusChanged(true);
return unityPlayViewer;
}
/** FOR UNITY **/
@Override
public void onPause() {
super.onPause();
mUnityMainActivity.mUnityPlayer.pause();
}
// Resume Unity
@Override public void onResume()
{
super.onResume();
mUnityMainActivity.mUnityPlayer.resume();
}
Я не знаю, почему я должен включать onPause, onResume и т. Д. В оба файла, Но если у одного из них его нет, это приведет к сбою.
Ответ №2:
Проблема в том, что каждый раз, когда мы переключаемся на фрагмент unity, создается новый UnityPlayer, и это приводит к сбою приложения. Итак, нам нужно создать UnityPlayer только в первый раз или только тогда, когда проигрыватель был остановлен. Это работает на моей стороне.
В классе UnityFragment мои глобальные переменные :
protected UnityPlayer mUnityPlayer;
private View view;
private FrameLayout frameLayoutForUnity;
В onCreate
новом UnityPlayer создается, который вызывается только в первый раз :
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mUnityPlayer = new UnityPlayer(getActivity()); // create Unity Player
}
В onCreateView
мы обновляем представление для UnityPlayer :
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
if(mUnityPlayer.getParent() != null){
((ViewGroup)mUnityPlayer.getParent()).removeAllViews();
}
view = inflater.inflate(R.layout.fragment_unity, container, false);
this.frameLayoutForUnity = (FrameLayout) view.findViewById(R.id.unityFragmentLayout);
this.frameLayoutForUnity.addView(mUnityPlayer.getView(),
FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT);
mUnityPlayer.requestFocus();
mUnityPlayer.windowFocusChanged(true);
return view;
}
Остальное остается прежним. Могут быть лучшие решения, чем это. Приветствия 🙂