Кажется, что он (пока?) Не поддерживается.Транзакция фактически встроена в androidx.navigation.fragment.FragmentNavigator:
@Override
public void navigate(@NonNull Destination destination, @Nullable Bundle args,
@Nullable NavOptions navOptions) {
final Fragment frag = destination.createFragment(args);
final FragmentTransaction ft = mFragmentManager.beginTransaction();
int enterAnim = navOptions != null ? navOptions.getEnterAnim() : -1;
int exitAnim = navOptions != null ? navOptions.getExitAnim() : -1;
int popEnterAnim = navOptions != null ? navOptions.getPopEnterAnim() : -1;
int popExitAnim = navOptions != null ? navOptions.getPopExitAnim() : -1;
if (enterAnim != -1 || exitAnim != -1 || popEnterAnim != -1 || popExitAnim != -1) {
enterAnim = enterAnim != -1 ? enterAnim : 0;
exitAnim = exitAnim != -1 ? exitAnim : 0;
popEnterAnim = popEnterAnim != -1 ? popEnterAnim : 0;
popExitAnim = popExitAnim != -1 ? popExitAnim : 0;
ft.setCustomAnimations(enterAnim, exitAnim, popEnterAnim, popExitAnim);
}
ft.replace(mContainerId, frag);
final StateFragment oldState = getState();
if (oldState != null) {
ft.remove(oldState);
}
final @IdRes int destId = destination.getId();
final StateFragment newState = new StateFragment();
newState.mCurrentDestId = destId;
ft.add(newState, StateFragment.FRAGMENT_TAG);
final boolean initialNavigation = mFragmentManager.getFragments().isEmpty();
final boolean isClearTask = navOptions != null && navOptions.shouldClearTask();
// TODO Build first class singleTop behavior for fragments
final boolean isSingleTopReplacement = navOptions != null && oldState != null
&& navOptions.shouldLaunchSingleTop()
&& oldState.mCurrentDestId == destId;
if (!initialNavigation && !isClearTask && !isSingleTopReplacement) {
ft.addToBackStack(getBackStackName(destId));
} else {
ft.runOnCommit(new Runnable() {
@Override
public void run() {
dispatchOnNavigatorNavigated(destId, isSingleTopReplacement
? BACK_STACK_UNCHANGED
: BACK_STACK_DESTINATION_ADDED);
}
});
}
ft.commit();
mFragmentManager.executePendingTransactions();
}
Анимации здесь (добавлены из навигации по XML), но мы нигде не можем изменить их поведение и вызвать addSharedElement() для транзакции.
Однако я полагаю, что мы можем сделать это из переходов общих элементов активности.
Это не рекомендуется, поскольку это только между действиями, и это идет вразрез с последними рекомендациями Google пос приложениями с одним действием.
Я думаю, что это возможно, поскольку аргументы передаются перед вызовом startActivity() в androidx.navigation.fragment.ActivityNavigator:
@Override
public void navigate(@NonNull Destination destination, @Nullable Bundle args,
@Nullable NavOptions navOptions) {
if (destination.getIntent() == null) {
throw new IllegalStateException("Destination " + destination.getId()
+ " does not have an Intent set.");
}
Intent intent = new Intent(destination.getIntent());
if (args != null) {
intent.putExtras(args);
String dataPattern = destination.getDataPattern();
if (!TextUtils.isEmpty(dataPattern)) {
// Fill in the data pattern with the args to build a valid URI
StringBuffer data = new StringBuffer();
Pattern fillInPattern = Pattern.compile("\\{(.+?)\\}");
Matcher matcher = fillInPattern.matcher(dataPattern);
while (matcher.find()) {
String argName = matcher.group(1);
if (args.containsKey(argName)) {
matcher.appendReplacement(data, "");
data.append(Uri.encode(args.getString(argName)));
} else {
throw new IllegalArgumentException("Could not find " + argName + " in "
+ args + " to fill data pattern " + dataPattern);
}
}
matcher.appendTail(data);
intent.setData(Uri.parse(data.toString()));
}
}
if (navOptions != null && navOptions.shouldClearTask()) {
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
}
if (navOptions != null && navOptions.shouldLaunchDocument()
&& Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_DOCUMENT);
} else if (!(mContext instanceof Activity)) {
// If we're not launching from an Activity context we have to launch in a new task.
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
}
if (navOptions != null && navOptions.shouldLaunchSingleTop()) {
intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
}
if (mHostActivity != null) {
final Intent hostIntent = mHostActivity.getIntent();
if (hostIntent != null) {
final int hostCurrentId = hostIntent.getIntExtra(EXTRA_NAV_CURRENT, 0);
if (hostCurrentId != 0) {
intent.putExtra(EXTRA_NAV_SOURCE, hostCurrentId);
}
}
}
final int destId = destination.getId();
intent.putExtra(EXTRA_NAV_CURRENT, destId);
NavOptions.addPopAnimationsToIntent(intent, navOptions);
mContext.startActivity(intent);
if (navOptions != null && mHostActivity != null) {
int enterAnim = navOptions.getEnterAnim();
int exitAnim = navOptions.getExitAnim();
if (enterAnim != -1 || exitAnim != -1) {
enterAnim = enterAnim != -1 ? enterAnim : 0;
exitAnim = exitAnim != -1 ? exitAnim : 0;
mHostActivity.overridePendingTransition(enterAnim, exitAnim);
}
}
// You can't pop the back stack from the caller of a new Activity,
// so we don't add this navigator to the controller's back stack
dispatchOnNavigatorNavigated(destId, BACK_STACK_UNCHANGED);
}
Нам нужно заполнить аргументывот так:
val args = Bundle()
// If there's a shared view and the device supports it, animate the transition
if (sharedView != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
val transitionName = "my_transition_name"
args.putAll(ActivityOptions.makeSceneTransitionAnimation(this, sharedView, transitionName).toBundle())
}
navController.navigate(R.id.myDestination, args)
Я не проверял это.