public
interface
HeterogeneousExpandableList
android.widget.HeterogeneousExpandableList |
Known Indirect Subclasses |
Additional methods that when implemented make an
ExpandableListAdapter
take advantage of the Adapter
view type
mechanism.
An ExpandableListAdapter
declares it has one view type for its group items
and one view type for its child items. Although adapted for most ExpandableListView
s,
these values should be tuned for heterogeneous ExpandableListView
s.
getGroupView(int, boolean, View, ViewGroup)
and
getChildView(int, int, boolean, View, ViewGroup)
will be of the appropriate group or child type, resulting in a more efficient reuse of the
previously created views.
Public methods | |
---|---|
abstract
int
|
getChildType(int groupPosition, int childPosition)
Get the type of child View that will be created by
|
abstract
int
|
getChildTypeCount()
Returns the number of types of child Views that will be created by
|
abstract
int
|
getGroupType(int groupPosition)
Get the type of group View that will be created by
|
abstract
int
|
getGroupTypeCount()
Returns the number of types of group Views that will be created by
|
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 |
An integer representing the type of child View. Two child views should share the same
type if one can be converted to the other in
getChildView(int, int, boolean, View, ViewGroup)
Note: Integers must be in the range 0 to getChildTypeCount() - 1.
IGNORE_ITEM_VIEW_TYPE can also be returned. |
See also:
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.
AdapterView
.
Returns | |
---|---|
int |
The total number of types of child Views that will be created by this adapter. |
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 |
An integer representing the type of group View. Two group views should share the same
type if one can be converted to the other in
getGroupView(int, boolean, View, ViewGroup)
. Note: Integers must be in the range 0 to getGroupTypeCount() - 1.
IGNORE_ITEM_VIEW_TYPE can also be returned. |
See also:
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.
AdapterView
.
Returns | |
---|---|
int |
The number of types of group Views that will be created by this adapter. |
See also: