FragmentTransaction.java revision bc377841db05bd5197ffadb58ba52c54b2a85f16
12dedce6e84679ead961a485c7fe4b0f77c713b6aDianne Hackbornpackage android.app; 22dedce6e84679ead961a485c7fe4b0f77c713b6aDianne Hackborn 32dedce6e84679ead961a485c7fe4b0f77c713b6aDianne Hackborn/** 42dedce6e84679ead961a485c7fe4b0f77c713b6aDianne Hackborn * API for performing a set of Fragment operations. 52dedce6e84679ead961a485c7fe4b0f77c713b6aDianne Hackborn */ 6ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackbornpublic abstract class FragmentTransaction { 75ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn /** 85ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * Calls {@link #add(int, Fragment, String)} with a 0 containerViewId. 95ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn */ 10ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction add(Fragment fragment, String tag); 115ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn 125ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn /** 135ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * Calls {@link #add(int, Fragment, String)} with a null tag. 145ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn */ 15ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction add(int containerViewId, Fragment fragment); 165ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn 175ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn /** 185ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * Add a fragment to the activity state. This fragment may optionally 195ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * also have its view (if {@link Fragment#onCreateView Fragment.onCreateView} 205ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * returns non-null) into a container view of the activity. 215ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * 225ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * @param containerViewId Optional identifier of the container this fragment is 235ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * to be placed in. If 0, it will not be placed in a container. 245ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * @param fragment The fragment to be added. This fragment must not already 255ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * be added to the activity. 265ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * @param tag Optional tag name for the fragment, to later retrieve the 27247fe74c934cb3fba85aae7e051a8044f460fb11Dianne Hackborn * fragment with {@link FragmentManager#findFragmentByTag(String) 28247fe74c934cb3fba85aae7e051a8044f460fb11Dianne Hackborn * FragmentManager.findFragmentByTag(String)}. 295ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * 305ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * @return Returns the same FragmentTransaction instance. 315ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn */ 32ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction add(int containerViewId, Fragment fragment, String tag); 335ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn 345ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn /** 355ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * Calls {@link #replace(int, Fragment, String)} with a null tag. 365ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn */ 37ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction replace(int containerViewId, Fragment fragment); 385ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn 395ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn /** 405ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * Replace an existing fragment that was added to a container. This is 415ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * essentially the same as calling {@link #remove(Fragment)} for all 425ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * currently added fragments that were added with the same containerViewId 435ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * and then {@link #add(int, Fragment, String)} with the same arguments 445ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * given here. 455ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * 465ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * @param containerViewId Identifier of the container whose fragment(s) are 475ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * to be replaced. 485ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * @param fragment The new fragment to place in the container. 495ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * @param tag Optional tag name for the fragment, to later retrieve the 50247fe74c934cb3fba85aae7e051a8044f460fb11Dianne Hackborn * fragment with {@link FragmentManager#findFragmentByTag(String) 51247fe74c934cb3fba85aae7e051a8044f460fb11Dianne Hackborn * FragmentManager.findFragmentByTag(String)}. 525ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * 535ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * @return Returns the same FragmentTransaction instance. 545ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn */ 55ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction replace(int containerViewId, Fragment fragment, String tag); 565ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn 575ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn /** 585ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * Remove an existing fragment. If it was added to a container, its view 595ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * is also removed from that container. 605ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * 615ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * @param fragment The fragment to be removed. 625ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * 635ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * @return Returns the same FragmentTransaction instance. 645ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn */ 65ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction remove(Fragment fragment); 66f121be737c59390d97e21a92be8e166001534c7dDianne Hackborn 67f121be737c59390d97e21a92be8e166001534c7dDianne Hackborn /** 685ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * Hides an existing fragment. This is only relevant for fragments whose 695ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * views have been added to a container, as this will cause the view to 705ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * be hidden. 715ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * 725ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * @param fragment The fragment to be hidden. 735ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * 745ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * @return Returns the same FragmentTransaction instance. 755ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn */ 76ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction hide(Fragment fragment); 775ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn 785ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn /** 79baa1553c8d125a55956d1a8b2966ccd100673179Jim Shuma * Shows a previously hidden fragment. This is only relevant for fragments whose 805ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * views have been added to a container, as this will cause the view to 815ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * be shown. 825ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * 835ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * @param fragment The fragment to be shown. 845ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * 855ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * @return Returns the same FragmentTransaction instance. 865ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn */ 87ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction show(Fragment fragment); 882b6230e0de4bac2829ac27b19e95ba75c3da82b4Adam Powell 892b6230e0de4bac2829ac27b19e95ba75c3da82b4Adam Powell /** 902b6230e0de4bac2829ac27b19e95ba75c3da82b4Adam Powell * @return <code>true</code> if this transaction contains no operations, 91c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * <code>false</code> otherwise. 922b6230e0de4bac2829ac27b19e95ba75c3da82b4Adam Powell */ 93ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract boolean isEmpty(); 945ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn 955ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn /** 965ae74d6e89a30e79ea85c487b32223ef55314985Dianne Hackborn * Bit mask that is set for all enter transitions. 97f121be737c59390d97e21a92be8e166001534c7dDianne Hackborn */ 98ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public static final int TRANSIT_ENTER_MASK = 0x1000; 99f121be737c59390d97e21a92be8e166001534c7dDianne Hackborn 100f121be737c59390d97e21a92be8e166001534c7dDianne Hackborn /** 101f121be737c59390d97e21a92be8e166001534c7dDianne Hackborn * Bit mask that is set for all exit transitions. 102f121be737c59390d97e21a92be8e166001534c7dDianne Hackborn */ 103ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public static final int TRANSIT_EXIT_MASK = 0x2000; 104f121be737c59390d97e21a92be8e166001534c7dDianne Hackborn 105f121be737c59390d97e21a92be8e166001534c7dDianne Hackborn /** Not set up for a transition. */ 106ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public static final int TRANSIT_UNSET = -1; 107f121be737c59390d97e21a92be8e166001534c7dDianne Hackborn /** No animation for transition. */ 108ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public static final int TRANSIT_NONE = 0; 1099ff82bf2b33513052500473d0d6d025a80dcecbfChet Haase /** Fragment is being added onto the stack */ 110ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public static final int TRANSIT_FRAGMENT_OPEN = 1 | TRANSIT_ENTER_MASK; 1119ff82bf2b33513052500473d0d6d025a80dcecbfChet Haase /** Fragment is being removed from the stack */ 112ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public static final int TRANSIT_FRAGMENT_CLOSE = 2 | TRANSIT_EXIT_MASK; 113327fbd2c8fa294b919475feb4c74a74ee1981e02Dianne Hackborn /** Fragment should simply fade in or out; that is, no strong navigation associated 114327fbd2c8fa294b919475feb4c74a74ee1981e02Dianne Hackborn * with it except that it is appearing or disappearing for some reason. */ 115327fbd2c8fa294b919475feb4c74a74ee1981e02Dianne Hackborn public static final int TRANSIT_FRAGMENT_FADE = 3 | TRANSIT_ENTER_MASK; 116811ed1065f39469cf2cf6adba22cab397ed88d5eChet Haase 117c6669ca63299219d815464129dac051ab2404286Dianne Hackborn /** 118c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * Set specific animation resources to run for the fragments that are 119bc377841db05bd5197ffadb58ba52c54b2a85f16Chet Haase * entering and exiting in this transaction. These animations will not be 120bc377841db05bd5197ffadb58ba52c54b2a85f16Chet Haase * played when popping the back stack. 121c6669ca63299219d815464129dac051ab2404286Dianne Hackborn */ 122ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction setCustomAnimations(int enter, int exit); 123bc377841db05bd5197ffadb58ba52c54b2a85f16Chet Haase 124bc377841db05bd5197ffadb58ba52c54b2a85f16Chet Haase /** 125bc377841db05bd5197ffadb58ba52c54b2a85f16Chet Haase * Set specific animation resources to run for the fragments that are 126bc377841db05bd5197ffadb58ba52c54b2a85f16Chet Haase * entering and exiting in this transaction. The <code>popEnter</code> 127bc377841db05bd5197ffadb58ba52c54b2a85f16Chet Haase * and <code>popExit</code> animations will be played for enter/exit 128bc377841db05bd5197ffadb58ba52c54b2a85f16Chet Haase * operations specifically when popping the back stack. 129bc377841db05bd5197ffadb58ba52c54b2a85f16Chet Haase */ 130bc377841db05bd5197ffadb58ba52c54b2a85f16Chet Haase public abstract FragmentTransaction setCustomAnimations(int enter, int exit, 131bc377841db05bd5197ffadb58ba52c54b2a85f16Chet Haase int popEnter, int popExit); 132bc377841db05bd5197ffadb58ba52c54b2a85f16Chet Haase 133c6669ca63299219d815464129dac051ab2404286Dianne Hackborn /** 134c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * Select a standard transition animation for this transaction. May be 135c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * one of {@link #TRANSIT_NONE}, {@link #TRANSIT_FRAGMENT_OPEN}, 136c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * or {@link #TRANSIT_FRAGMENT_CLOSE} 137c6669ca63299219d815464129dac051ab2404286Dianne Hackborn */ 138ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction setTransition(int transit); 139c6669ca63299219d815464129dac051ab2404286Dianne Hackborn 140c6669ca63299219d815464129dac051ab2404286Dianne Hackborn /** 141c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * Set a custom style resource that will be used for resolving transit 142c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * animations. 143c6669ca63299219d815464129dac051ab2404286Dianne Hackborn */ 144ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction setTransitionStyle(int styleRes); 145f121be737c59390d97e21a92be8e166001534c7dDianne Hackborn 146c6669ca63299219d815464129dac051ab2404286Dianne Hackborn /** 147c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * Add this transaction to the back stack. This means that the transaction 148c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * will be remembered after it is committed, and will reverse its operation 149c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * when later popped off the stack. 150c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * 151c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * @param name An optional name for this back stack state, or null. 152c6669ca63299219d815464129dac051ab2404286Dianne Hackborn */ 153ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction addToBackStack(String name); 154dd913a50cd72d6dd23c4ea437f0ebe2be05ca2e8Dianne Hackborn 155dd913a50cd72d6dd23c4ea437f0ebe2be05ca2e8Dianne Hackborn /** 1560c24a5514c1ff143a223720a090b19a86a75945fAdam Powell * Returns true if this FragmentTransaction is allowed to be added to the back 1570c24a5514c1ff143a223720a090b19a86a75945fAdam Powell * stack. If this method would return false, {@link #addToBackStack(String)} 1580c24a5514c1ff143a223720a090b19a86a75945fAdam Powell * will throw {@link IllegalStateException}. 1590c24a5514c1ff143a223720a090b19a86a75945fAdam Powell * 1600c24a5514c1ff143a223720a090b19a86a75945fAdam Powell * @return True if {@link #addToBackStack(String)} is permitted on this transaction. 1610c24a5514c1ff143a223720a090b19a86a75945fAdam Powell */ 162ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract boolean isAddToBackStackAllowed(); 1630c24a5514c1ff143a223720a090b19a86a75945fAdam Powell 1640c24a5514c1ff143a223720a090b19a86a75945fAdam Powell /** 1650c24a5514c1ff143a223720a090b19a86a75945fAdam Powell * Disallow calls to {@link #addToBackStack(String)}. Any future calls to 1660c24a5514c1ff143a223720a090b19a86a75945fAdam Powell * addToBackStack will throw {@link IllegalStateException}. If addToBackStack 1670c24a5514c1ff143a223720a090b19a86a75945fAdam Powell * has already been called, this method will throw IllegalStateException. 1680c24a5514c1ff143a223720a090b19a86a75945fAdam Powell */ 169ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction disallowAddToBackStack(); 1700c24a5514c1ff143a223720a090b19a86a75945fAdam Powell 1710c24a5514c1ff143a223720a090b19a86a75945fAdam Powell /** 172c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * Set the full title to show as a bread crumb when this transaction 173c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * is on the back stack, as used by {@link FragmentBreadCrumbs}. 174c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * 175c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * @param res A string resource containing the title. 176c6669ca63299219d815464129dac051ab2404286Dianne Hackborn */ 177ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction setBreadCrumbTitle(int res); 178c6669ca63299219d815464129dac051ab2404286Dianne Hackborn 179c6669ca63299219d815464129dac051ab2404286Dianne Hackborn /** 180c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * Like {@link #setBreadCrumbTitle(int)} but taking a raw string; this 181c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * method is <em>not</em> recommended, as the string can not be changed 182c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * later if the locale changes. 183c6669ca63299219d815464129dac051ab2404286Dianne Hackborn */ 184ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction setBreadCrumbTitle(CharSequence text); 185c6669ca63299219d815464129dac051ab2404286Dianne Hackborn 186c6669ca63299219d815464129dac051ab2404286Dianne Hackborn /** 187c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * Set the short title to show as a bread crumb when this transaction 188c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * is on the back stack, as used by {@link FragmentBreadCrumbs}. 189c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * 190c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * @param res A string resource containing the title. 191c6669ca63299219d815464129dac051ab2404286Dianne Hackborn */ 192ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction setBreadCrumbShortTitle(int res); 193c6669ca63299219d815464129dac051ab2404286Dianne Hackborn 194c6669ca63299219d815464129dac051ab2404286Dianne Hackborn /** 195c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * Like {@link #setBreadCrumbShortTitle(int)} but taking a raw string; this 196c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * method is <em>not</em> recommended, as the string can not be changed 197c6669ca63299219d815464129dac051ab2404286Dianne Hackborn * later if the locale changes. 198c6669ca63299219d815464129dac051ab2404286Dianne Hackborn */ 199ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract FragmentTransaction setBreadCrumbShortTitle(CharSequence text); 200c6669ca63299219d815464129dac051ab2404286Dianne Hackborn 201c6669ca63299219d815464129dac051ab2404286Dianne Hackborn /** 202ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn * Schedules a commit of this transaction. The commit does 203dd913a50cd72d6dd23c4ea437f0ebe2be05ca2e8Dianne Hackborn * not happen immediately; it will be scheduled as work on the main thread 204dd913a50cd72d6dd23c4ea437f0ebe2be05ca2e8Dianne Hackborn * to be done the next time that thread is ready. 205dd913a50cd72d6dd23c4ea437f0ebe2be05ca2e8Dianne Hackborn * 206ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn * <p class="note">A transaction can only be committed with this method 207ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn * prior to its containing activity saving its state. If the commit is 208ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn * attempted after that point, an exception will be thrown. This is 209ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn * because the state after the commit can be lost if the activity needs to 210ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn * be restored from its state. See {@link #commitAllowingStateLoss()} for 211ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn * situations where it may be okay to lose the commit.</p> 212ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn * 213dd913a50cd72d6dd23c4ea437f0ebe2be05ca2e8Dianne Hackborn * @return Returns the identifier of this transaction's back stack entry, 214dd913a50cd72d6dd23c4ea437f0ebe2be05ca2e8Dianne Hackborn * if {@link #addToBackStack(String)} had been called. Otherwise, returns 215dd913a50cd72d6dd23c4ea437f0ebe2be05ca2e8Dianne Hackborn * a negative number. 216dd913a50cd72d6dd23c4ea437f0ebe2be05ca2e8Dianne Hackborn */ 217ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract int commit(); 218ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn 219ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn /** 220ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn * Like {@link #commit} but allows the commit to be executed after an 221ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn * activity's state is saved. This is dangerous because the commit can 222ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn * be lost if the activity needs to later be restored from its state, so 223ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn * this should only be used for cases where it is okay for the UI state 224ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn * to change unexpectedly on the user. 225ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn */ 226ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract int commitAllowingStateLoss(); 2272dedce6e84679ead961a485c7fe4b0f77c713b6aDianne Hackborn} 228