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bidiformatter (2), suitebuilder (2), testsuitebuilder (2), performancetestcase (2), serviceinfo (2), downloadrequest (2), mmtelfeature (2), registrationmanager (2), provisioningmanager (2), imsmmtelmanager (2), messageclass (2), submitpdu (2), downloadablesubscription (2), trafficdescriptor (2), networksliceinfo (2), apnsetting (2), visualvoicemailsmsfiltersettings (2), visualvoicemailservice (2), telephonyscanmanager (2), subscriptionplan (2), signalthresholdinfo (2), signalstrengthupdaterequest (2), disconnectcause (2), barringinfo (2), availablenetworkinfo (2), remoteconference (2), phoneaccount (2), videocall (2), callresponse (2), callattributes (2), voice (2), engine (2), speech (2), recognitionsupport (2), recognitionpart (2), wallpaperservice (2), wallpaper (2), confirmationrequest (2), completevoicerequest (2), abortvoicerequest (2), spellcheckerservice (2), setvalueresult (2), setvaluerequest (2), settingspreferencevalue (2), settingspreferencemetadata (2), metadataresult (2), metadatarequest (2), getvalueresult (2), getvaluerequest (2), walletcard (2), understandresult (2), understander (2), insightevent (2), contextinsight (2), visualizerviewaction (2), zenpolicy (2), zendeviceeffects (2), clearcredentialstaterequest (2), begingetcredentialresponse (2), begingetcredentialrequest (2), begincreatecredentialresponse (2), contentsafety (2), choosersession (2), chooseraction (2), visibilitysetteraction (2), saveinfo (2), presentations (2), imagetransformation (2), fillresponse (2), filleventhistory (2), dataset (2), customdescription (2), charsequencetransformation (2), batchupdates (2), assist (2), networksecurityconfig (2), domain (2), keyprotection (2), keygenparameterspec (2), personalizationdata (2), credentialdataresult (2), credentialdatarequest (2), accesscontrolprofile (2), advancedprotectionmanager (2), networksecuritypolicy (2), keystoreparameter (2), keypairgeneratorspec (2), confirmationprompt (2), appuriauthenticationpolicy (2), seservice (2), rttstationrangingparams (2), rttrangingparams (2), rtt (2), wifipdrangingparams (2), uwbrangingparams (2), uwbcomplexchannel (2), dltdoarangingparams (2), rawresponderrangingconfig (2), rawrangingdevice (2), rawinitiatorrangingconfig (2), rawdttagrangingconfig (2), oobresponderrangingconfig (2), oobinitiatorrangingconfig (2), devicehandle (2), transporthandle (2), blerssirangingparams (2), blecsrangingparams (2), sessionconfig (2), sensorfusionparams (2), rangingsession (2), rangingpreference (2), rangingmanager (2), rangingdevice (2), datanotificationconfig (2), userdictionary (2), outbox (2), inbox (2), draft (2), mmssms (2), directory (2), thumbnails (2), deletedfiles (2), playlists (2), members (2), artists (2), albums (2), contactspickersessioncontract (2), syncstate (2), displayphoto (2), defaultaccount (2), insert (2), photo (2), aggregationsuggestions (2), groupmembership (2), extensions (2), contactmethods (2), mediacolumns (2), capabilities (2), albumcolumns (2), 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(2), wifip2pusdbasedlocalserviceadvertisementconfig (2), wifip2pdiscoveryconfig (2), wifip2pconfig (2), wifiawarenetworkspecifier (2), wifiawaredatapathsecurityconfig (2), subscribeconfig (2), publishconfig (2), awarepairingconfig (2), awaredatapathrequest (2), wifinetworksuggestion (2), wifinetworkspecifier (2), wifiinfo (2), eap (2), softapconfiguration (2), blockingoption (2), vcnwifiunderlyingnetworktemplate (2), vcnmanager (2), vcngatewayconnectionconfig (2), vcnconfig (2), vcncellunderlyingnetworktemplate (2), sipprofile (2), sipaudiocall (2), discoveryrequest (2), advertisingrequest (2), ipsec (2), ike (2), transportmodechildsessionparams (2), ikesessionconfiguration (2), ikesaproposal (2), childsessionconfiguration (2), childsaproposal (2), sslcertificate (2), quicoptions (2), httpconnectcallback (2), httpengine (2), stalednsoptions (2), connectionmigrationoptions (2), eapakaoption (2), eapakainfo (2), localsocketaddress (2), vpnservice (2), tetheringrequest (2), 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edinstancestate if container null we have different layouts and in one of them this fragment s containing frame doesn t exist the fragment may still be created from its saved state but there is no reason to try to create its view hierarchy because it won t be displayed note this is not needed we could just run the code below where we would create and return the view hierarchy it would just never be used return null scrollview scroller new scrollview getactivity textview text new textview getactivity int padding int typedvalue applydimension typedvalue complex_unit_dip 4 getactivity getresources getdisplaymetrics text setpadding padding padding padding padding scroller addview text text settext shakespeare dialogue getshownindex return scroller in this case when the user clicks on a title there is no details container in the current activity so the titles fragment s click code will launch a new activity to display the details fragment public static class detailsactivity extends activity override protected void oncreate bundle savedinstancestate super oncreate savedinstancestate if getresources getconfiguration orientation configuration orientation_landscape if the screen is now in landscape mode we can show the dialog in line with the list so we don t need this activity finish return if savedinstancestate null during initial setup plug in the details fragment detailsfragment details new detailsfragment details setarguments getintent getextras getfragmentmanager begintransaction add android r id content details commit however the screen may be large enough to show both the list of titles and details about the currently selected title to use such a layout on a landscape screen this alternative layout can be placed under layout land linearlayout xmlns android http schemas android com apk res android android orientation horizontal android layout_width match_parent android layout_height match_parent fragment class com example android apis app fragmentlayout titlesfragment android id id titles android layout_weight 1 android layout_width 0px android layout_height match_parent framelayout android id id details android layout_weight 1 android layout_width 0px android layout_height match_parent android background android attr detailselementbackground linearlayout note how the prior code will adjust to this alternative ui flow the titles fragment will now embed the details fragment inside of this activity and the details activity will finish itself if it is running in a configuration where the details can be shown in place when a configuration change causes the activity hosting these fragments to restart its new instance may use a different layout that doesn t include the same fragments as the previous layout in this case all of the previous fragments will still be instantiated and running in the new instance however any that are no longer associated with a fragment tag in the view hierarchy will not have their content view created and will return false from isinlayout the code here also shows how you can determine if a fragment placed in a container is no longer running in a layout with that container and avoid creating its view hierarchy in that case the attributes of the fragment tag are used to control the layoutparams provided when attaching the fragment s view to the parent container they can also be parsed by the fragment in oninflate activity attributeset bundle as parameters the fragment being instantiated must have some kind of unique identifier so that it can be re associated with a previous instance if the parent activity needs to be destroyed and recreated this can be provided these ways if nothing is explicitly supplied the view id of the container will be used android tag can be used in fragment to provide a specific tag name for the fragment android id can be used in fragment to provide a specific identifier for the fragment back stack the transaction in which fragments are modified can be placed on an internal back stack of the owning activity when the user presses back in the activity any transactions on the back stack are popped off before the activity itself is finished for example consider this simple fragment that is instantiated with an integer argument and displays that in a textview in its ui public static class countingfragment extends fragment int mnum create a new instance of countingfragment providing num as an argument static countingfragment newinstance int num countingfragment f new countingfragment supply num input as an argument bundle args new bundle args putint num num f setarguments args return f when creating retrieve this instance s number from its arguments override public void oncreate bundle savedinstancestate super oncreate savedinstancestate mnum getarguments null getarguments getint num 1 the fragment s ui is just a simple text view showing its instance number override public view oncreateview layoutinflater inflater viewgroup container bundle savedinstancestate view v inflater inflate r layout hello_world container false view tv v findviewbyid r id text textview tv settext fragment mnum tv setbackgrounddrawable getresources getdrawable android r drawable gallery_thumb return v a function that creates a new instance of the fragment replacing whatever current fragment instance is being shown and pushing that change on to the back stack could be written as void addfragmenttostack mstacklevel instantiate a new fragment fragment newfragment countingfragment newinstance mstacklevel add the fragment to the activity pushing this transaction on to the back stack fragmenttransaction ft getfragmentmanager begintransaction ft replace r id simple_fragment newfragment ft settransition fragmenttransaction transit_fragment_open ft addtobackstack null ft commit after each call to this function a new entry is on the stack and pressing back will pop it to return the user to whatever previous state the activity ui was in fragments appearing or disappearing do not generate system events for accessibility so set a title on your fragments with view setaccessibilitypanetitle charsequence to notify accessibility users of these ui transitions summary nested classes class fragment instantiationexception this class was deprecated in api level 28 use fragment instantiationexception class fragment savedstate this class was deprecated in api level 28 use fragment savedstate xml attributes android fragmentallowentertransitionoverlap sets whether the enter and exit transitions should overlap when transitioning forward android fragmentallowreturntransitionoverlap sets whether the enter and exit transitions should overlap when transitioning because of popping the back stack android fragmententertransition the transition that will be used to move views into the initial scene android fragmentexittransition 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 android fragmentreentertransition the transition that will be used to move views in to the scene when returning due to popping a back stack android fragmentsharedelemententertransition the transition that will be used for shared elements transferred into the content scene android fragmentsharedelementreturntransition the transition that will be used for shared elements transferred back during a pop of the back stack inherited constants from interface android content componentcallbacks2 int trim_memory_background level for ontrimmemory int the process has gone on to the lru list int trim_memory_complete this constant was deprecated in api level 35 apps are not notified of this level since api level 34 int trim_memory_moderate this constant was deprecated in api level 35 apps are not notified of this level since api level 34 int trim_memory_running_critical this constant was deprecated in api level 35 apps are not notified of this level since api level 34 int trim_memory_running_low this constant was deprecated in api level 35 apps are not notified of this level since api level 34 int trim_memory_running_moderate this constant was deprecated in api level 35 apps are not notified of this level since api level 34 int trim_memory_ui_hidden level for ontrimmemory int the process had been showing a user interface and is no longer doing so public constructors fragment default constructor public methods 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 activity getactivity return the activity this fragment is currently associated with boolean getallowentertransitionoverlap returns whether the exit transition and enter transition overlap or not boolean getallowreturntransitionoverlap returns whether the return transition and reenter transition overlap or not final bundle getarguments return the arguments supplied to setarguments bundle if any final fragmentmanager getchildfragmentmanager return a private fragmentmanager for placing and managing fragments inside of this fragment context getcontext return the context this fragment is currently associated with transition getentertransition returns the transition that will be used to move views into the initial scene transition 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 loadermanager getloadermanager this method is deprecated use fragment getloadermanager final fragment getparentfragment returns the parent fragment containing this fragment transition 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 getactivity getresources final boolean getretaininstance transition 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 transition getsharedelemententertransition returns the transition that will be used for shared elements transferred into the content scene transition 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 return a localized string from the application s package s default string table 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 formatter and string format string object final string gettag get the tag name of the fragment if specified final fragment gettargetfragment return the target fragment set by settargetfragment fragment int final int gettargetrequestcode return the target request code set by settargetfragment fragment int 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 oncreateview layoutinflater viewgroup bundle if provided final int hashcode subclasses can not override hashcode static fragment instantiate context context string fname like instantiate context string bundle but with a null argument bundle 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 startactivityforresult intent int void onattach activity activity this method was deprecated in api level 23 use onattach context instead 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 called by the system when the device configuration changes while your component is running if you override this method you must call through to the superclass implementation 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 animator oncreateanimator int transit boolean enter int nextanim called when a fragment loads an animation void oncreatecontextmenu contextmenu menu view v contextmenu contextmenuinfo menuinfo called when a context menu for the view is about to be shown void oncreateoptionsmenu menu menu menuinflater inflater initialize the contents of the activity 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 oncreateview layoutinflater viewgroup bundle has been detached from the fragment 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 ishidden of the fragment has changed void oninflate attributeset attrs bundle savedinstancestate this method was ...
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