Most visited

Recently visited

Results for

Added in API level 1

Summary: Ctors | Methods | Inherited Methods | [Expand All]

BaseExpandableListAdapter

public abstract class BaseExpandableListAdapter
extends Object implements ExpandableListAdapter, HeterogeneousExpandableList

java.lang.Object
↳	android.widget.BaseExpandableListAdapter

Known Direct Subclasses

CursorTreeAdapter, SimpleExpandableListAdapter

Known Indirect Subclasses

ResourceCursorTreeAdapter, SimpleCursorTreeAdapter

Base class for a ExpandableListAdapter used to provide data and Views from some data to an expandable list view.

Adapters inheriting this class should verify that the base implementations of getCombinedChildId(long, long) and getCombinedGroupId(long) are correct in generating unique IDs from the group/children IDs.

See also:

Summary

Public constructors
`BaseExpandableListAdapter()`

Public methods
`boolean`	`areAllItemsEnabled()`
`int`	`getChildType(int groupPosition, int childPosition)` Get the type of child View that will be created by `getChildView(int, int, boolean, View, ViewGroup)` for the specified child item.
`int`	`getChildTypeCount()` Returns the number of types of child Views that will be created by `getChildView(int, int, boolean, View, ViewGroup)` .
`long`	`getCombinedChildId(long groupId, long childId)` Override this method if you foresee a clash in IDs based on this scheme: Base implementation returns a long: bit 0: Whether this ID points to a child (unset) or group (set), so for this method this bit will be 1.
`long`	`getCombinedGroupId(long groupId)` Override this method if you foresee a clash in IDs based on this scheme: Base implementation returns a long: bit 0: Whether this ID points to a child (unset) or group (set), so for this method this bit will be 0.
`int`	`getGroupType(int groupPosition)` Get the type of group View that will be created by `getGroupView(int, boolean, View, ViewGroup)` .
`int`	`getGroupTypeCount()` Returns the number of types of group Views that will be created by `getGroupView(int, boolean, View, ViewGroup)` .
`boolean`	`isEmpty()`
`void`	`notifyDataSetChanged()`
`void`	`notifyDataSetInvalidated()`
`void`	`onGroupCollapsed(int groupPosition)` Called when a group is collapsed.
`void`	`onGroupExpanded(int groupPosition)` Called when a group is expanded.
`void`	`registerDataSetObserver(DataSetObserver observer)`
`void`	`unregisterDataSetObserver(DataSetObserver observer)`

Inherited methods

From class


  
    java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long millis, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long millis)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

From interface


  
    android.widget.ExpandableListAdapter

`abstract boolean`	`areAllItemsEnabled()`
`abstract Object`	`getChild(int groupPosition, int childPosition)` Gets the data associated with the given child within the given group.
`abstract long`	`getChildId(int groupPosition, int childPosition)` Gets the ID for the given child within the given group.
`abstract View`	`getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent)` Gets a View that displays the data for the given child within the given group.
`abstract int`	`getChildrenCount(int groupPosition)` Gets the number of children in a specified group.
`abstract long`	`getCombinedChildId(long groupId, long childId)` Gets an ID for a child that is unique across any item (either group or child) that is in this list.
`abstract long`	`getCombinedGroupId(long groupId)` Gets an ID for a group that is unique across any item (either group or child) that is in this list.
`abstract Object`	`getGroup(int groupPosition)` Gets the data associated with the given group.
`abstract int`	`getGroupCount()` Gets the number of groups.
`abstract long`	`getGroupId(int groupPosition)` Gets the ID for the group at the given position.
`abstract View`	`getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent)` Gets a View that displays the given group.
`abstract boolean`	`hasStableIds()` Indicates whether the child and group IDs are stable across changes to the underlying data.
`abstract boolean`	`isChildSelectable(int groupPosition, int childPosition)` Whether the child at the specified position is selectable.
`abstract boolean`	`isEmpty()`
`abstract void`	`onGroupCollapsed(int groupPosition)` Called when a group is collapsed.
`abstract void`	`onGroupExpanded(int groupPosition)` Called when a group is expanded.
`abstract void`	`registerDataSetObserver(DataSetObserver observer)`
`abstract void`	`unregisterDataSetObserver(DataSetObserver observer)`

From interface


  
    android.widget.HeterogeneousExpandableList

Public constructors

BaseExpandableListAdapter

Added in API level 1

BaseExpandableListAdapter ()

Public methods

areAllItemsEnabled

Added in API level 1

boolean areAllItemsEnabled ()

Returns
`boolean`

getChildType

Added in API level 8

int getChildType (int groupPosition, 
                int childPosition)

Get the type of child View that will be created by getChildView(int, int, boolean, View, ViewGroup) for the specified child item.

Parameters
`groupPosition`	`int`: the position of the group that the child resides in
`childPosition`	`int`: the position of the child with respect to other children in the group

Returns
`int`	0 for any group or child position, since only one child type count is declared.

getChildTypeCount

Added in API level 8

int getChildTypeCount ()

Returns the number of types of child Views that will be created by getChildView(int, int, boolean, View, ViewGroup) . Each type represents a set of views that can be converted in getChildView(int, int, boolean, View, ViewGroup) , for any group. If the adapter always returns the same type of View for all child items, this method should return 1.

This method will only be called when the adapter is set on the AdapterView.

Returns
`int`	1 as a default value in BaseExpandableListAdapter.

getCombinedChildId

Added in API level 1

long getCombinedChildId (long groupId, 
                long childId)

Override this method if you foresee a clash in IDs based on this scheme:

Base implementation returns a long:

bit 0: Whether this ID points to a child (unset) or group (set), so for this method this bit will be 1.

bit 1-31: Lower 31 bits of the groupId

bit 32-63: Lower 32 bits of the childId.

Gets an ID for a child that is unique across any item (either group or child) that is in this list. Expandable lists require each item (group or child) to have a unique ID among all children and groups in the list. This method is responsible for returning that unique ID given a child's ID and its group's ID. Furthermore, if hasStableIds() is true, the returned ID must be stable as well.

Parameters
`groupId`	`long`: The ID of the group that contains this child.
`childId`	`long`: The ID of the child.

Returns
`long`	The unique (and possibly stable) ID of the child across all groups and children in this list.

getCombinedGroupId

Added in API level 1

long getCombinedGroupId (long groupId)

Override this method if you foresee a clash in IDs based on this scheme:

Base implementation returns a long:

bit 0: Whether this ID points to a child (unset) or group (set), so for this method this bit will be 0.

bit 1-31: Lower 31 bits of the groupId

bit 32-63: Lower 32 bits of the childId.

Gets an ID for a group that is unique across any item (either group or child) that is in this list. Expandable lists require each item (group or child) to have a unique ID among all children and groups in the list. This method is responsible for returning that unique ID given a group's ID. Furthermore, if hasStableIds() is true, the returned ID must be stable as well.

Parameters
`groupId`	`long`: The ID of the group

Returns
`long`	The unique (and possibly stable) ID of the group across all groups and children in this list.

getGroupType

Added in API level 8

int getGroupType (int groupPosition)

Get the type of group View that will be created by getGroupView(int, boolean, View, ViewGroup) . for the specified group item.

Parameters
`groupPosition`	`int`: the position of the group for which the type should be returned.

Returns
`int`	0 for any groupPosition, since only one group type count is declared.

getGroupTypeCount

Added in API level 8

int getGroupTypeCount ()

Returns the number of types of group Views that will be created by getGroupView(int, boolean, View, ViewGroup) . Each type represents a set of views that can be converted in getGroupView(int, boolean, View, ViewGroup) . If the adapter always returns the same type of View for all group items, this method should return 1.

This method will only be called when the adapter is set on the AdapterView.

Returns
`int`	1 as a default value in BaseExpandableListAdapter.

isEmpty

Added in API level 1

boolean isEmpty ()

Returns
`boolean`

notifyDataSetChanged

Added in API level 1

void notifyDataSetChanged ()

See also:

notifyChanged()

notifyDataSetInvalidated

Added in API level 1

void notifyDataSetInvalidated ()

See also:

notifyInvalidated()

onGroupCollapsed

Added in API level 1

void onGroupCollapsed (int groupPosition)

Called when a group is collapsed.

Parameters
`groupPosition`	`int`: The group being collapsed.

onGroupExpanded

Added in API level 1

void onGroupExpanded (int groupPosition)

Called when a group is expanded.

Parameters
`groupPosition`	`int`: The group being expanded.

registerDataSetObserver

Added in API level 1

void registerDataSetObserver (DataSetObserver observer)

Parameters
`observer`	`DataSetObserver`

unregisterDataSetObserver

Added in API level 1

void unregisterDataSetObserver (DataSetObserver observer)

Parameters
`observer`	`DataSetObserver`

Annotations

Interfaces

Classes

Enums

Exceptions

Most visited

Recently visited

Results for

BaseExpandableListAdapter

Summary

Public constructors

Public methods

Inherited methods

Public constructors

BaseExpandableListAdapter

Public methods

areAllItemsEnabled

getChildType

getChildTypeCount

getCombinedChildId

getCombinedGroupId

getGroupType

getGroupTypeCount

isEmpty

notifyDataSetChanged

notifyDataSetInvalidated

onGroupCollapsed

onGroupExpanded

registerDataSetObserver

unregisterDataSetObserver