belongs to Maven artifact com.android.support:support-fragment:28.0.0-alpha1
Fragment
public
class
Fragment
extends Object
implements
ComponentCallbacks,
View.OnCreateContextMenuListener,
LifecycleOwner,
ViewModelStoreOwner
java.lang.Object | |
↳ | android.support.v4.app.Fragment |
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Static library support version of the framework's Fragment
.
Used to write apps that run on platforms prior to Android 3.0. When running
on Android 3.0 or above, this implementation is still used; it does not try
to switch to the framework's implementation. See the framework Fragment
documentation for a class overview.
The main differences when using this support version instead of the framework version are:
- Your activity must extend
FragmentActivity
- You must call
getSupportFragmentManager()
to get theFragmentManager
Summary
Nested classes | |
---|---|
class |
Fragment.InstantiationException
Thrown by |
class |
Fragment.SavedState
State information that has been retrieved from a fragment instance
through |
Public constructors | |
---|---|
Fragment()
Default constructor. |
Public methods | |
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void
|
dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args)
Print the Fragments's state into the given stream. |
final
boolean
|
equals(Object o)
Subclasses can not override equals(). |
final
FragmentActivity
|
getActivity()
Return the |
boolean
|
getAllowEnterTransitionOverlap()
Returns whether the the exit transition and enter transition overlap or not. |
boolean
|
getAllowReturnTransitionOverlap()
Returns whether the the return transition and reenter transition overlap or not. |
final
Bundle
|
getArguments()
Return the arguments supplied when the fragment was instantiated, if any. |
final
FragmentManager
|
getChildFragmentManager()
Return a private FragmentManager for placing and managing Fragments inside of this Fragment. |
Context
|
getContext()
Return the |
Object
|
getEnterTransition()
Returns the Transition that will be used to move Views into the initial scene. |
Object
|
getExitTransition()
Returns the Transition that will be used to move Views out of the scene when the fragment is removed, hidden, or detached when not popping the back stack. |
final
FragmentManager
|
getFragmentManager()
Return the FragmentManager for interacting with fragments associated with this fragment's activity. |
final
Object
|
getHost()
Return the host object of this fragment. |
final
int
|
getId()
Return the identifier this fragment is known by. |
final
LayoutInflater
|
getLayoutInflater()
Returns the cached LayoutInflater used to inflate Views of this Fragment. |
Lifecycle
|
getLifecycle()
|
LoaderManager
|
getLoaderManager()
Return the LoaderManager for this fragment. |
final
Fragment
|
getParentFragment()
Returns the parent Fragment containing this Fragment. |
Object
|
getReenterTransition()
Returns the Transition that will be used to move Views in to the scene when returning due to popping a back stack. |
final
Resources
|
getResources()
Return |
final
boolean
|
getRetainInstance()
|
Object
|
getReturnTransition()
Returns the Transition that will be used to move Views out of the scene when the Fragment is preparing to be removed, hidden, or detached because of popping the back stack. |
Object
|
getSharedElementEnterTransition()
Returns the Transition that will be used for shared elements transferred into the content Scene. |
Object
|
getSharedElementReturnTransition()
Return the Transition that will be used for shared elements transferred back during a pop of the back stack. |
final
String
|
getString(int resId, Object... formatArgs)
Return a localized formatted string from the application's package's
default string table, substituting the format arguments as defined in
|
final
String
|
getString(int resId)
Return a localized string from the application's package's default string table. |
final
String
|
getTag()
Get the tag name of the fragment, if specified. |
final
Fragment
|
getTargetFragment()
Return the target fragment set by |
final
int
|
getTargetRequestCode()
Return the target request code set by |
final
CharSequence
|
getText(int resId)
Return a localized, styled CharSequence from the application's package's default string table. |
boolean
|
getUserVisibleHint()
|
View
|
getView()
Get the root view for the fragment's layout (the one returned by |
ViewModelStore
|
getViewModelStore()
|
final
int
|
hashCode()
Subclasses can not override hashCode(). |
static
Fragment
|
instantiate(Context context, String fname)
Like |
static
Fragment
|
instantiate(Context context, String fname, Bundle args)
Create a new instance of a Fragment with the given class name. |
final
boolean
|
isAdded()
Return true if the fragment is currently added to its activity. |
final
boolean
|
isDetached()
Return true if the fragment has been explicitly detached from the UI. |
final
boolean
|
isHidden()
Return true if the fragment has been hidden. |
final
boolean
|
isInLayout()
Return true if the layout is included as part of an activity view hierarchy via the <fragment> tag. |
final
boolean
|
isRemoving()
Return true if this fragment is currently being removed from its activity. |
final
boolean
|
isResumed()
Return true if the fragment is in the resumed state. |
final
boolean
|
isStateSaved()
Returns true if this fragment is added and its state has already been saved by its host. |
final
boolean
|
isVisible()
Return true if the fragment is currently visible to the user. |
void
|
onActivityCreated(Bundle savedInstanceState)
Called when the fragment's activity has been created and this fragment's view hierarchy instantiated. |
void
|
onActivityResult(int requestCode, int resultCode, Intent data)
Receive the result from a previous call to
|
void
|
onAttach(Activity activity)
This method was deprecated
in API level 24.1.0.
See |
void
|
onAttach(Context context)
Called when a fragment is first attached to its context. |
void
|
onAttachFragment(Fragment childFragment)
Called when a fragment is attached as a child of this fragment. |
void
|
onConfigurationChanged(Configuration newConfig)
|
boolean
|
onContextItemSelected(MenuItem item)
This hook is called whenever an item in a context menu is selected. |
void
|
onCreate(Bundle savedInstanceState)
Called to do initial creation of a fragment. |
Animation
|
onCreateAnimation(int transit, boolean enter, int nextAnim)
Called when a fragment loads an animation. |
Animator
|
onCreateAnimator(int transit, boolean enter, int nextAnim)
Called when a fragment loads an animator. |
void
|
onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo)
Called when a context menu for the |
void
|
onCreateOptionsMenu(Menu menu, MenuInflater inflater)
Initialize the contents of the Fragment host's standard options menu. |
View
|
onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
Called to have the fragment instantiate its user interface view. |
void
|
onDestroy()
Called when the fragment is no longer in use. |
void
|
onDestroyOptionsMenu()
Called when this fragment's option menu items are no longer being included in the overall options menu. |
void
|
onDestroyView()
Called when the view previously created by |
void
|
onDetach()
Called when the fragment is no longer attached to its activity. |
LayoutInflater
|
onGetLayoutInflater(Bundle savedInstanceState)
Returns the LayoutInflater used to inflate Views of this Fragment. |
void
|
onHiddenChanged(boolean hidden)
Called when the hidden state (as returned by |
void
|
onInflate(Activity activity, AttributeSet attrs, Bundle savedInstanceState)
This method was deprecated
in API level 24.1.0.
See |
void
|
onInflate(Context context, AttributeSet attrs, Bundle savedInstanceState)
Called when a fragment is being created as part of a view layout inflation, typically from setting the content view of an activity. |
void
|
onLowMemory()
|
void
|
onMultiWindowModeChanged(boolean isInMultiWindowMode)
Called when the Fragment's activity changes from fullscreen mode to multi-window mode and visa-versa. |
boolean
|
onOptionsItemSelected(MenuItem item)
This hook is called whenever an item in your options menu is selected. |
void
|
onOptionsMenuClosed(Menu menu)
This hook is called whenever the options menu is being closed (either by the user canceling the menu with the back/menu button, or when an item is selected). |
void
|
onPause()
Called when the Fragment is no longer resumed. |
void
|
onPictureInPictureModeChanged(boolean isInPictureInPictureMode)
Called by the system when the activity changes to and from picture-in-picture mode. |
void
|
onPrepareOptionsMenu(Menu menu)
Prepare the Fragment host's standard options menu to be displayed. |
void
|
onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults)
Callback for the result from requesting permissions. |
void
|
onResume()
Called when the fragment is visible to the user and actively running. |
void
|
onSaveInstanceState(Bundle outState)
Called to ask the fragment to save its current dynamic state, so it can later be reconstructed in a new instance of its process is restarted. |
void
|
onStart()
Called when the Fragment is visible to the user. |
void
|
onStop()
Called when the Fragment is no longer started. |
void
|
onViewCreated(View view, Bundle savedInstanceState)
Called immediately after |
void
|
onViewStateRestored(Bundle savedInstanceState)
Called when all saved state has been restored into the view hierarchy of the fragment. |
void
|
postponeEnterTransition()
Postpone the entering Fragment transition until |
void
|
registerForContextMenu(View view)
Registers a context menu to be shown for the given view (multiple views can show the context menu). |
final
void
|
requestPermissions(String[] permissions, int requestCode)
Requests permissions to be granted to this application. |
final
FragmentActivity
|
requireActivity()
Return the |
final
Context
|
requireContext()
Return the |
final
FragmentManager
|
requireFragmentManager()
Return the FragmentManager for interacting with fragments associated with this fragment's activity. |
final
Object
|
requireHost()
Return the host object of this fragment. |
void
|
setAllowEnterTransitionOverlap(boolean allow)
Sets whether the the exit transition and enter transition overlap or not. |
void
|
setAllowReturnTransitionOverlap(boolean allow)
Sets whether the the return transition and reenter transition overlap or not. |
void
|
setArguments(Bundle args)
Supply the construction arguments for this fragment. |
void
|
setEnterSharedElementCallback(SharedElementCallback callback)
When custom transitions are used with Fragments, the enter transition callback is called when this Fragment is attached or detached when not popping the back stack. |
void
|
setEnterTransition(Object transition)
Sets the Transition that will be used to move Views into the initial scene. |
void
|
setExitSharedElementCallback(SharedElementCallback callback)
When custom transitions are used with Fragments, the exit transition callback is called when this Fragment is attached or detached when popping the back stack. |
void
|
setExitTransition(Object transition)
Sets the Transition that will be used to move Views out of the scene when the fragment is removed, hidden, or detached when not popping the back stack. |
void
|
setHasOptionsMenu(boolean hasMenu)
Report that this fragment would like to participate in populating
the options menu by receiving a call to |
void
|
setInitialSavedState(Fragment.SavedState state)
Set the initial saved state that this Fragment should restore itself
from when first being constructed, as returned by
|
void
|
setMenuVisibility(boolean menuVisible)
Set a hint for whether this fragment's menu should be visible. |
void
|