IT. Expert System.

All Superinterfaces:

ComponentCallbacks

All Known Implementing Classes:

AbstractInputMethodService, AccessibilityInjectorTest.MockAccessibilityService, AccessibilityInjectorTestActivity, AccessibilityService, AccountAuthenticatorActivity, Activity, ActivityGroup, AddColumn, AdjacentListsWithAdjacentISVsInside, AdjacentVerticalRectLists, AliasActivity, Application, AutoCompleteTextViewSimple, BaselineAlignmentCenterGravity, BaselineAlignmentZeroWidthAndWeight, BaselineButtons, BasicAnimatorActivity, BigCache, BinderThreadPriorityService, BitmapDrawable, BordeauxService, BrightnessLimit, ButtonAboveTallInternalSelectionView, ButtonsWithTallTextViewInBetween, CameraEffectsRecordingSample, CellSpan, ChooseAccountActivity, ChooseAccountTypeActivity, ChooseTypeAndAccountActivity, ClearTop, ContentProvider, DescendantFocusability, DialogFragment, Disabled, DrawableBgMinSize, DreamService, ExpandableListActivity, FillInWrap, FixedWidth, FocusAfterRemoval, Fragment, FragmentActivity, FrameLayoutGravity, FrameLayoutMargin, GlobalFocusChange, GoneParentFocusedChild, GrantCredentialsPermissionActivity, GridDelete, GridInHorizontal, GridInVertical, GridPadding, GridScenario, GridScrollListener, GridSetSelection, GridSetSelectionMany, GridSetSelectionStackFromBottom, GridSetSelectionStackFromBottomMany, GridSimple, GridSingleColumn, GridStackFromBottom, GridStackFromBottomMany, GridThrasher, GridVerticalSpacing, GridVerticalSpacingStackFromBottom, HorizontalFocusSearch, HorizontalGravity, HorizontalOrientationVerticalAlignment, Include, InputMethodService, IntentService, InterrogationActivity, LauncherActivity, LaunchpadActivity, LaunchpadTabActivity, LinearLayoutEditTexts, LinearLayoutGrid, ListActivity, ListBottomGravity, ListBottomGravityMany, ListButtonsDiagonalAcrossItems, ListContextMenu, ListDividers, ListEndingWithMultipleSeparators, ListFilter, ListFragment, ListGetSelectedView, ListHeterogeneous, ListHorizontalFocusWithinItemWins, ListInHorizontal, ListInterleaveFocusables, ListInVertical, ListItemFocusableAboveUnfocusable, ListItemFocusablesClose, ListItemFocusablesFarApart, ListItemISVAndButton, ListItemsExpandOnSelection, ListLastItemPartiallyVisible, ListManagedCursor, ListOfButtons, ListOfEditTexts, ListOfInternalSelectionViews, ListOfItemsShorterThanScreen, ListOfItemsTallerThanScreen, ListOfShortShortTallShortShort, ListOfShortTallShort, ListOfThinItems, ListOfTouchables, ListRecyclerProfiling, ListScenario, ListScrollListener, ListSetSelection, ListSimple, ListTakeFocusFromSide, ListThrasher, ListTopGravity, ListTopGravityMany, ListViewHeight, ListWithDisappearingItemBug, ListWithEditTextHeader, ListWithEmptyView, ListWithFirstScreenUnSelectable, ListWithFooterViewAndNewLabels, ListWithHeaders, ListWithMailMessages, ListWithNoFadingEdge, ListWithOffScreenNextSelectable, ListWithOnItemSelectedAction, ListWithScreenOfNoSelectables, ListWithSeparators, LLEditTextThenButton, LLOfButtons1, LLOfButtons2, LLOfTwoFocusableInTouchMode, LocalActivity, LocalDeniedService, LocalDialog, LocalGrantedService, LocalProvider, LocalScreen, LocalService, Longpress, MemoryFileProvider, MenuLayout, MenuLayoutLandscape, MenuLayoutPortrait, MenuScenario, MenuWith1Item, Merge, MessengerService, MockApplication, MockContentProvider, MultiPageTextWithPadding, MutateDrawable, NativeActivity, PopupWindowVisibility, PreDrawListener, PreferenceActivity, PreferenceFragment, RadioGroupActivity, RecognitionService, RemoteSubActivityScreen, RemoteViewsActivity, RemoteViewsService, RequestFocus, RequestRectangleVisible, RequestRectangleVisibleWithInternalScroll, RunQueue, ScrollViewButtonsAndLabels, ScrollViewScenario, SearchableActivity, SearchRecentSuggestionsProvider, Service, ShortButtons, SpellCheckerService, StubbedView, SubActivityScreen, SuggestionProvider, SyncActivityTooManyDeletes, TabActivity, TallTextAboveButton, TestedActivity, TestedScreen, TestProvider, TextToSpeechService, TranslucentFancyActivity, VerticalFocusSearch, VerticalGravity, ViewAttachTestActivity, ViewGroupChildren, Visibility, VisibilityCallback, VpnService, WallpaperService, WallpaperSettingsActivity, WebViewFragment, Weight, Weight, WeightSum, ZeroSized

public interface ComponentCallbacks2
extends ComponentCallbacks

• Field Summary

  Fields

  Modifier and Type	Field and Description
  static int	TRIM_MEMORY_BACKGROUND Level for onTrimMemory(int): the process has gone on to the LRU list.
  static int	TRIM_MEMORY_COMPLETE Level for onTrimMemory(int): the process is nearing the end of the background LRU list, and if more memory isn't found soon it will be killed.
  static int	TRIM_MEMORY_MODERATE Level for onTrimMemory(int): the process is around the middle of the background LRU list; freeing memory can help the system keep other processes running later in the list for better overall performance.
  static int	TRIM_MEMORY_RUNNING_CRITICAL Level for onTrimMemory(int): the process is not an expendable background process, but the device is running extremely low on memory and is about to not be able to keep any background processes running.
  static int	TRIM_MEMORY_RUNNING_LOW Level for onTrimMemory(int): the process is not an expendable background process, but the device is running low on memory.
  static int	TRIM_MEMORY_RUNNING_MODERATE Level for onTrimMemory(int): the process is not an expendable background process, but the device is running moderately low on memory.
  static int	TRIM_MEMORY_UI_HIDDEN Level for onTrimMemory(int): the process had been showing a user interface, and is no longer doing so.

• Method Summary

  Methods

  Modifier and Type	Method and Description
  void	onTrimMemory(int level) Called when the operating system has determined that it is a good time for a process to trim unneeded memory from its process.

  • Methods inherited from interface android.content.ComponentCallbacks

    onConfigurationChanged, onLowMemory

• Field Detail

  • TRIM_MEMORY_COMPLETE

    static final int TRIM_MEMORY_COMPLETE

    Level for onTrimMemory(int): the process is nearing the end of the background LRU list, and if more memory isn't found soon it will be killed.

    See Also:

    Constant Field Values

  • TRIM_MEMORY_MODERATE

    static final int TRIM_MEMORY_MODERATE

    Level for onTrimMemory(int): the process is around the middle of the background LRU list; freeing memory can help the system keep other processes running later in the list for better overall performance.

    See Also:

    Constant Field Values

  • TRIM_MEMORY_BACKGROUND

    static final int TRIM_MEMORY_BACKGROUND

    Level for onTrimMemory(int): the process has gone on to the LRU list. This is a good opportunity to clean up resources that can efficiently and quickly be re-built if the user returns to the app.

    See Also:

    Constant Field Values

  • TRIM_MEMORY_UI_HIDDEN

    static final int TRIM_MEMORY_UI_HIDDEN

    Level for onTrimMemory(int): the process had been showing a user interface, and is no longer doing so. Large allocations with the UI should be released at this point to allow memory to be better managed.

    See Also:

    Constant Field Values

  • TRIM_MEMORY_RUNNING_CRITICAL

    static final int TRIM_MEMORY_RUNNING_CRITICAL

    Level for onTrimMemory(int): the process is not an expendable background process, but the device is running extremely low on memory and is about to not be able to keep any background processes running. Your running process should free up as many non-critical resources as it can to allow that memory to be used elsewhere. The next thing that will happen after this is ComponentCallbacks.onLowMemory() called to report that nothing at all can be kept in the background, a situation that can start to notably impact the user.

    See Also:

    Constant Field Values

  • TRIM_MEMORY_RUNNING_LOW

    static final int TRIM_MEMORY_RUNNING_LOW

    Level for onTrimMemory(int): the process is not an expendable background process, but the device is running low on memory. Your running process should free up unneeded resources to allow that memory to be used elsewhere.

    See Also:

    Constant Field Values

  • TRIM_MEMORY_RUNNING_MODERATE

    static final int TRIM_MEMORY_RUNNING_MODERATE

    Level for onTrimMemory(int): the process is not an expendable background process, but the device is running moderately low on memory. Your running process may want to release some unneeded resources for use elsewhere.

    See Also:

    Constant Field Values

• Method Detail

  • onTrimMemory

    void onTrimMemory(int level)

    Called when the operating system has determined that it is a good time for a process to trim unneeded memory from its process. This will happen for example when it goes in the background and there is not enough memory to keep as many background processes running as desired. You should never compare to exact values of the level, since new intermediate values may be added -- you will typically want to compare if the value is greater or equal to a level you are interested in.

    To retrieve the processes current trim level at any point, you can use ActivityManager.getMyMemoryState(RunningAppProcessInfo).

    Parameters:

    level - The context of the trim, giving a hint of the amount of trimming the application may like to perform. May be TRIM_MEMORY_COMPLETE, TRIM_MEMORY_MODERATE, TRIM_MEMORY_BACKGROUND, TRIM_MEMORY_UI_HIDDEN, TRIM_MEMORY_RUNNING_CRITICAL, TRIM_MEMORY_RUNNING_LOW, or TRIM_MEMORY_RUNNING_MODERATE.