下面列出了android.support.v4.app.FragmentManager#executePendingTransactions ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
public void onEventMainThread(ThrowableFailureEvent event) {
if (!isInExecutionScope(executionScope, event)) {
return;
}
checkLogException(event);
// Execute pending commits before finding to avoid multiple error fragments being shown
FragmentManager fm = getFragmentManager();
fm.executePendingTransactions();
DialogFragment existingFragment = (DialogFragment) fm.findFragmentByTag(TAG_ERROR_DIALOG);
if (existingFragment != null) {
// Just show the latest error
existingFragment.dismiss();
}
DialogFragment errorFragment = (DialogFragment) factory
.prepareErrorFragment(event, finishAfterDialog, argumentsForErrorDialog);
if (errorFragment != null) {
errorFragment.show(fm, TAG_ERROR_DIALOG);
}
}
public void onEventMainThread(ThrowableFailureEvent event) {
if (!isInExecutionScope(executionScope, event)) {
return;
}
checkLogException(event);
// Execute pending commits before finding to avoid multiple error fragments being shown
FragmentManager fm = getFragmentManager();
fm.executePendingTransactions();
DialogFragment existingFragment = (DialogFragment) fm.findFragmentByTag(TAG_ERROR_DIALOG);
if (existingFragment != null) {
// Just show the latest error
existingFragment.dismiss();
}
DialogFragment errorFragment = (DialogFragment) factory
.prepareErrorFragment(event, finishAfterDialog, argumentsForErrorDialog);
if (errorFragment != null) {
errorFragment.show(fm, TAG_ERROR_DIALOG);
}
}
public boolean navigateNext() {
if (!activity.isFinishing()) {
FragmentManager fragmentManager = activity.getSupportFragmentManager();
int nextStep = fragmentManager.getBackStackEntryCount() + 1;
if (nextStep < pages.length) {
WizardPage WizardPage = pages[nextStep];
Fragment fragment = WizardPage.createFragment();
fragmentManager.beginTransaction()
.addToBackStack(fragment.getClass().getName())
.setCustomAnimations(enterAnimation, exitAnimation, popEnterAnimation, popExitAnimation)
.replace(containerId, fragment)
.commit();
fragmentManager.executePendingTransactions();
return true;
} else if (wizardListener != null) {
wizardListener.onWizardFinished();
}
}
return false;
}
/**
* Get instance of RxFacebookAuthFragment
*
* @return a RxFacebookAuthFragment
*/
private RxFacebookAuthFragment getRxFacebookAuthFragment(Builder builder) {
FragmentManager fragmentManager = mActivity.getSupportFragmentManager();
// prevent fragment manager already executing transaction
int stackCount = fragmentManager.getBackStackEntryCount();
if( fragmentManager.getFragments() != null )
fragmentManager = fragmentManager.getFragments().get( stackCount > 0 ? stackCount-1 : stackCount ).getChildFragmentManager();
RxFacebookAuthFragment rxFacebookAuthFragment = (RxFacebookAuthFragment)
fragmentManager.findFragmentByTag(RxFacebookAuthFragment.TAG);
if (rxFacebookAuthFragment == null) {
rxFacebookAuthFragment = RxFacebookAuthFragment.newInstance(builder);
fragmentManager
.beginTransaction()
.add(rxFacebookAuthFragment, RxFacebookAuthFragment.TAG)
.commit();
fragmentManager.executePendingTransactions();
}
return rxFacebookAuthFragment;
}
public void setFragments(FragmentManager fm,List<Fragment> fragments,List<String> mTitles) {
this.mTitles = mTitles;
if (this.fragmentList != null) {
FragmentTransaction ft = fm.beginTransaction();
for (Fragment f : this.fragmentList) {
ft.remove(f);
}
ft.commitAllowingStateLoss();
ft = null;
fm.executePendingTransactions();
}
this.fragmentList = fragments;
notifyDataSetChanged();
}
private HolderFragment getHolderFragment(FragmentManager fragmentManager) {
HolderFragment holderFragment = findHolderFragment(fragmentManager);
if (holderFragment == null) {
holderFragment = new HolderFragment();
fragmentManager
.beginTransaction()
.add(holderFragment, TAG)
.commitAllowingStateLoss();
fragmentManager.executePendingTransactions();
}
return holderFragment;
}
private RouterFragmentV4 getRouterFragmentV4(FragmentActivity activity) {
RouterFragmentV4 routerFragment = findRouterFragmentV4(activity);
if (routerFragment == null) {
routerFragment = RouterFragmentV4.newInstance();
FragmentManager fragmentManager = activity.getSupportFragmentManager();
fragmentManager
.beginTransaction()
.add(routerFragment, TAG)
.commitAllowingStateLoss();
fragmentManager.executePendingTransactions();
}
return routerFragment;
}
public void init() {
if (!activity.isFinishing()) {
FragmentManager fragmentManager = activity.getSupportFragmentManager();
fragmentManager.addOnBackStackChangedListener(this);
WizardPage firstPage = pages[0];
fragmentManager.beginTransaction().replace(containerId, firstPage.createFragment()).commit();
fragmentManager.executePendingTransactions();
if (firstPage.hasOptionMenu()) {
activity.supportInvalidateOptionsMenu();
}
firstPage.setupActionBar(actionBarResolver.getSupportActionBar());
}
}
@NonNull
static ResolutionFragment from(@NonNull FragmentManager fragmentManager) {
ResolutionFragment resolutionFragment = (ResolutionFragment) fragmentManager.findFragmentByTag(TAG);
if (resolutionFragment == null) {
resolutionFragment = new ResolutionFragment();
fragmentManager
.beginTransaction()
.add(resolutionFragment, TAG)
.commit();
fragmentManager.executePendingTransactions();
}
return resolutionFragment;
}
public static void attachTo(Activity activity, Object executionScope, boolean finishAfterDialog,
Bundle argumentsForErrorDialog) {
FragmentManager fm = ((FragmentActivity) activity).getSupportFragmentManager();
SupportManagerFragment fragment = (SupportManagerFragment) fm.findFragmentByTag(TAG_ERROR_DIALOG_MANAGER);
if (fragment == null) {
fragment = new SupportManagerFragment();
fm.beginTransaction().add(fragment, TAG_ERROR_DIALOG_MANAGER).commit();
fm.executePendingTransactions();
}
fragment.finishAfterDialog = finishAfterDialog;
fragment.argumentsForErrorDialog = argumentsForErrorDialog;
fragment.executionScope = executionScope;
}
private void showNextFragment() {
FragmentActivity activity = getActivity();
if (activity == null) {
return;
}
FragmentManager fm = activity.getSupportFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.replace(R.id.fragment, new FragmentTransitionSecondFragment(), FragmentTransitionSecondFragment.FRAGMENT_TAG);
ft.addToBackStack(null);
ft.commit();
fm.executePendingTransactions();
}
@Override
protected DialogFragment openDialogInternal(FragmentManager fm) {
if (fm.findFragmentByTag(DIALOG_FRAGMENT_TAG) != null) return null;
Fragment fragment = new Fragment(this, mCallback);
MediaRouteSelector selector = mediaSource().buildRouteSelector();
if (selector == null) return null;
androidMediaRouter().addCallback(selector, mCallback);
fragment.show(fm, DIALOG_FRAGMENT_TAG);
fm.executePendingTransactions();
return fragment;
}
@Override
protected DialogFragment openDialogInternal(FragmentManager fm) {
if (fm.findFragmentByTag(DIALOG_FRAGMENT_TAG) != null) return null;
MediaRouteControllerDialogFragment fragment = new MediaRouteControllerDialogFragment() {
final SystemVisibilitySaver mVisibilitySaver = new SystemVisibilitySaver();
@Override
public void onStart() {
mVisibilitySaver.saveSystemVisibility(getActivity());
super.onStart();
}
@Override
public void onStop() {
super.onStop();
mVisibilitySaver.restoreSystemVisibility(getActivity());
}
@Override
public void onDismiss(DialogInterface dialog) {
delegate().onDialogCancelled();
androidMediaRouter().removeCallback(mCallback);
mDialogFragment = null;
super.onDismiss(dialog);
}
};
MediaRouteSelector selector = mediaSource().buildRouteSelector();
if (selector == null) return null;
androidMediaRouter().addCallback(selector, mCallback);
fragment.show(fm, DIALOG_FRAGMENT_TAG);
fm.executePendingTransactions();
return fragment;
}
@Override
protected DialogFragment openDialogInternal(FragmentManager fm) {
if (fm.findFragmentByTag(DIALOG_FRAGMENT_TAG) != null) return null;
Fragment fragment = new Fragment(this);
MediaRouteSelector selector = mediaSource().buildRouteSelector();
if (selector == null) return null;
fragment.setRouteSelector(selector);
fragment.show(fm, DIALOG_FRAGMENT_TAG);
fm.executePendingTransactions();
return fragment;
}
/**
* Helper method to load fragments into layout
*
* @param containerResId The container resource Id in the content view into which to load the
* fragment
* @param fragment The fragment to load
* @param tag The fragment tag
* @param addToBackStack Whether the transaction should be addded to the backstack
* @param backStackTag The tag used for the backstack tag
* @param customAnimate Whether to provide a custom animation for the Fragment. If
* <code>true</code>, the Fragment also needs to be annotated with a
* {@linkplain li.barter.fragments.FragmentTransition} annotation which
* describes the transition to perform. If <code>false</code>, will use
* default fragment transition
* @param remove Whether the fragment should be removed before adding it
*/
public void loadFragment(final int containerResId,
final AbstractBarterLiFragment fragment, final String tag,
final boolean addToBackStack, final String backStackTag,
final boolean customAnimate, final boolean remove) {
final FragmentManager fragmentManager = getSupportFragmentManager();
if (remove) {
fragmentManager.popBackStackImmediate(null, FragmentManager.POP_BACK_STACK_INCLUSIVE);
fragmentManager.beginTransaction().remove(fragment).commit();
fragmentManager.executePendingTransactions();
}
final FragmentTransaction transaction = fragmentManager
.beginTransaction();
if (customAnimate) {
final FragmentTransition fragmentTransition = fragment.getClass()
.getAnnotation(
FragmentTransition.class);
if (fragmentTransition != null) {
transaction
.setCustomAnimations(fragmentTransition.enterAnimation(), fragmentTransition
.exitAnimation(), fragmentTransition
.popEnterAnimation(), fragmentTransition
.popExitAnimation());
}
}
transaction.replace(containerResId, fragment, tag);
if (addToBackStack) {
transaction.addToBackStack(backStackTag);
}
transaction.commit();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fragmentactionbarcontrol);
FragmentManager fm = getSupportFragmentManager();
if (fm.findFragmentByTag(FragmentTransitionDefaultFragment.FRAGMENT_TAG) == null) {
FragmentTransaction ft = fm.beginTransaction();
ft.add(R.id.container, new FragmentActionBarControlListViewFragment(),
FragmentActionBarControlListViewFragment.FRAGMENT_TAG);
ft.commit();
fm.executePendingTransactions();
}
}
/**
* Method creates fragment transaction and replace current fragment with new one.
*
* @param newFragment new fragment used for replacement.
* @param transactionTag text identifying fragment transaction.
*/
private void replaceFragment(Fragment newFragment, String transactionTag) {
if (newFragment != null) {
FragmentManager frgManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = frgManager.beginTransaction();
fragmentTransaction.setAllowOptimization(false);
fragmentTransaction.addToBackStack(transactionTag);
fragmentTransaction.replace(R.id.main_content_frame, newFragment).commit();
frgManager.executePendingTransactions();
} else {
Timber.e(new RuntimeException(), "Replace fragments with null newFragment parameter.");
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//getSupportFragmentManager().beginTransaction().add(R.id.frag_container, firstFragment).commit();
//first find the 3 fragments, if create them as needed.
//Remember fragments can survive the restart of an activity on orientation change.
FragmentManager fragmentManager = getSupportFragmentManager();
if (savedInstanceState != null) {
leftfrag = (FragLeft) fragmentManager.getFragment(savedInstanceState, "LEFT");
midfrag = (FragMid) fragmentManager.getFragment(savedInstanceState,"MIDDLE");
rightfrag = (FragRight) fragmentManager.getFragment(savedInstanceState,"RIGHT");
//since survived, remove them from the fragment manager, so don't double add them.
FragmentTransaction remove = fragmentManager.beginTransaction();
remove.remove(leftfrag);
remove.remove(midfrag);
remove.remove(rightfrag);
if (!remove.isEmpty()) {
remove.commit();
fragmentManager.executePendingTransactions();
}
} else {
leftfrag = new FragLeft();
midfrag = new FragMid();
rightfrag = new FragRight();
}
viewPager = (ViewPager) findViewById(R.id.pager);
if (viewPager != null) {
//in portrait mode
viewPager.setAdapter(new ThreeFragmentPagerAdapter(fragmentManager));
} else {
//in landscape mode
fragmentManager.beginTransaction()
.add(R.id.frag_left, leftfrag, "LEFT")
.add(R.id.frag_mid, midfrag, "MIDDLE")
.add(R.id.frag_right, rightfrag, "RIGHT")
.commit();
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
if (BuildConfig.DEBUG) {
StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder()
.detectLeakedSqlLiteObjects()
.penaltyLog()
.build()
);
}
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FragmentManager fm = getSupportFragmentManager();
if (fm.findFragmentByTag(ViewPagerFragmentParent.FRAGMENT_TAG) == null) {
FragmentTransaction ft = fm.beginTransaction();
ft.add(R.id.content_frame, new ViewPagerFragmentParent(),
ViewPagerFragmentParent.FRAGMENT_TAG);
ft.commit();
fm.executePendingTransactions();
}
FirebaseAnalytics firebaseAnalytics = FirebaseAnalytics.getInstance(this);
Bundle bundle = new Bundle();
bundle.putString(FirebaseAnalytics.Param.ITEM_NAME, "Activity~" + getClass().getName());
firebaseAnalytics.logEvent(FirebaseAnalytics.Event.APP_OPEN, bundle);
if (CheckPreferences.xposedErrorsEnabled(this)) {
checkXposedInstallation();
}
mApplicationUpdateNotification = new ApplicationUpdateNotification(this);
mApplicationUpdateNotification.checkForUpdate();
onNewIntent(getIntent());
if (Global.isPlaystoreAvailable(this)) {
FirebaseMessaging.getInstance().subscribeToTopic("playstore_users_notifications");;
} else {
FirebaseMessaging.getInstance().subscribeToTopic("non_playstore_users_notifications");
}
ThemeManager.applyTheme(this);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FragmentManager fragmentManager = getSupportFragmentManager();
if (savedInstanceState != null) {
one = (PageFragment) fragmentManager.getFragment(savedInstanceState, "ONE");
two = (PageFragment) fragmentManager.getFragment(savedInstanceState, "TWO");
three = (PageFragment) fragmentManager.getFragment(savedInstanceState, "THREE");
four = (PageFragment) fragmentManager.getFragment(savedInstanceState, "FOUR");
five = (PageFragment) fragmentManager.getFragment(savedInstanceState, "FIVE");
//since survived, need to clean up or I can't add them to the pagers adapter again.
FragmentTransaction remove = fragmentManager.beginTransaction();
remove.remove(one);
remove.remove(two);
remove.remove(three);
remove.remove(four);
remove.remove(five);
if (!remove.isEmpty()) {
remove.commit();
fragmentManager.executePendingTransactions();
}
} else {
one = PageFragment.create(1);
two = PageFragment.create(2);
three = PageFragment.create(3);
four = PageFragment.create(4);
five = PageFragment.create(5);
}
viewPager = (ViewPager) findViewById(R.id.pager);
if (viewPager != null) {
//in portrait mode
viewPager.setAdapter(new ThreeFragmentPagerAdapter(5));
} else {
//in landscape mode
viewPager1 = (ViewPager) findViewById(R.id.pagerleft);
viewPager1.setAdapter(new ThreeFragmentPagerAdapter(2));
viewPager2 = (ViewPager) findViewById(R.id.pagerright);
viewPager2.setAdapter(new ThreeFragmentPagerAdapter(3));
}
}