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add some comment to expandablelistadapter.h,modify samples

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This commit is contained in:
houzh 2023-09-03 09:56:25 +08:00
parent 5d0eb44e1a
commit c74461c138
3 changed files with 67 additions and 2 deletions
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6
apps/samples/exapandablelistview.cc
View File

@ -80,9 +80,13 @@ int main(int argc,const char*argv[]){
ExpandableListView*expLV = new ExpandableListView(0,0);
MyBaseExpandableListAdapter*adapter=new MyBaseExpandableListAdapter(&app);
std::vector<std::string>data;
for(int i=0;i<6;i++)data.push_back(std::string("subitem")+std::to_string(i));
for(int i=0;i<8;i++)data.push_back(std::string("subitem")+std::to_string(i));
for(int j=0;j<30;j++)
adapter->addGroupData(std::to_string(j),data);
expLV->setVerticalScrollBarEnabled(true);
expLV->setOverScrollMode(View::OVER_SCROLL_ALWAYS);
expLV->setAdapter(adapter);
w->addView(expLV);
expLV->setOnChildClickListener([](ExpandableListView& parent, View& v, int groupPosition, int childPosition, long id){

2
src/gui/widget/adapter.h
View File

@ -49,7 +49,7 @@ private:
std::vector<DataSetObserver*> mObservers;
};
typedef Adapter ListAdapter,SpinnerAdapter;
typedef Adapter ListAdapter,SpinnerAdapter,BaseAdapter;
template<class T>
class ArrayAdapter:public Adapter{
public:

61
src/gui/widget/expandablelistadapter.h
View File

@ -107,7 +107,37 @@ public:
* @return the data child for the specified group
*/
virtual void* getGroup(int groupPosition)=0;
/**
* Get the type of group View that will be created by
* {@link android.widget.ExpandableListAdapter#getGroupView(int, boolean, View, ViewGroup)}
* . for the specified group item.
*
* @param groupPosition the position of the group for which the type should be returned.
* @return 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
* {@link android.widget.ExpandableListAdapter#getGroupView(int, boolean, View, ViewGroup)}
* . Note: Integers must be in the range 0 to {@link #getGroupTypeCount} - 1.
* {@link android.widget.Adapter#IGNORE_ITEM_VIEW_TYPE} can also be returned.
* @see android.widget.Adapter#IGNORE_ITEM_VIEW_TYPE
* @see #getGroupTypeCount()
*/
virtual int getGroupType(int groupPosition)=0;/*====*/
/**
* <p>
* Returns the number of types of group Views that will be created by
* {@link android.widget.ExpandableListAdapter#getGroupView(int, boolean, View, ViewGroup)}
* . Each type represents a set of views that can be converted in
* {@link android.widget.ExpandableListAdapter#getGroupView(int, boolean, View, ViewGroup)}
* . If the adapter always returns the same type of View for all group items, this method should
* return 1.
* </p>
* This method will only be called when the adapter is set on the {@link AdapterView}.
*
* @return The number of types of group Views that will be created by this adapter.
* @see #getChildTypeCount()
* @see #getGroupType(int)
*/
virtual int getGroupTypeCount()=0;/*====*/
/**
* Gets the data associated with the given child within the given group.
@ -118,7 +148,38 @@ public:
* @return the data of the child
*/
virtual void* getChild(int groupPosition, int childPosition)=0;
/**
* Get the type of child View that will be created by
* {@link android.widget.ExpandableListAdapter#getChildView(int, int, boolean, View, ViewGroup)}
* for the specified child item.
*
* @param groupPosition the position of the group that the child resides in
* @param childPosition the position of the child with respect to other children in the group
* @return 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
* {@link android.widget.ExpandableListAdapter#getChildView(int, int, boolean, View, ViewGroup)}
* Note: Integers must be in the range 0 to {@link #getChildTypeCount} - 1.
* {@link android.widget.Adapter#IGNORE_ITEM_VIEW_TYPE} can also be returned.
* @see android.widget.Adapter#IGNORE_ITEM_VIEW_TYPE
* @see #getChildTypeCount()
*/
virtual int getChildType(int groupPosition, int childPosition)=0;/*===*/
/**
* <p>
* Returns the number of types of child Views that will be created by
* {@link android.widget.ExpandableListAdapter#getChildView(int, int, boolean, View, ViewGroup)}
* . Each type represents a set of views that can be converted in
* {@link android.widget.ExpandableListAdapter#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.
* </p>
* This method will only be called when the adapter is set on the {@link AdapterView}.
*
* @return The total number of types of child Views that will be created by this adapter.
* @see #getGroupTypeCount()
* @see #getChildType(int, int)
*/
virtual int getChildTypeCount()=0;/*===*/
/**
* Gets the ID for the group at the given position. This group ID must be