问题描述
我使用的扩展MyExpandableListAdapter
BaseExpandableListAdapter和我实现BaseExpandableListAdapter的所有方法在我的适配器，我创建一个扩展ExpandableListActivity MyExpadableListActivity。
MyExpandableListAdapter是内部类MyExpadableListActivity的。
我使用添加童车和D组UI（过去在下面），一个XML视图。
当我运行的应用程序的显示效果细腻。
我的问题是这样的这个我重写ExpandableListActivity的方法onChildClick（....）在MyExpadableListActivity。当我运行我的code就不能去onChildClick方法。
我怎么能实现使用这种状况，否则建议onChildClick（...）方法..
希望有人能指出我什么我做错了....
是如果有人点我怎么能实现的解决方案表示感谢。 。
I am using MyExpandableListAdapter that extendsBaseExpandableListAdapter and I implement all methods of BaseExpandableListAdapter in my adapter,I create MyExpadableListActivity that extends ExpandableListActivity.MyExpandableListAdapter is the inner class of MyExpadableListActivity.I am using a xml views for adding childs and groupd UI(past in below).As I run application its display fine.My problem is this this I override the method onChildClick (....) of ExpandableListActivity in MyExpadableListActivity .when I run my code it can't go for onChildClick method .how I can implement onChildClick (...) method using this situation or else suggestion ..Hope someone point me what I am doing wrong ....Be grateful for if anyone point how i can achieve solution . .
public class MyExpadableListActivity extends ExpandableListActivity implements
ExpandableListView.OnChildClickListener {
ExpandableListAdapter mAdapter;
Context mContext;
static final String groups[] = { "Chats", "Contacts (289)",
"Group Chat (7)", "e-Card (137)", "Pending (37)",
"Bookmarks" };
static final String children[][] = {
{ "ListofChats" },
{ "Group", "groupt01", "groupt02", "groupt03" },
{ "Groupd 01", "", "Group 02", "", "Group 03", "" },
{ "E-Card-01", "", "E-Card-02", "",
"Business Card Received", "" },
{ " Req", "", " Req", "", " Req", "" } };
private static final String TAG = "Hookup";
XMPPConnection connection = SignInMainActivity.connection;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mAdapter = new MyExpandableListAdapter(this);
setListAdapter(mAdapter);
registerForContextMenu(getExpandableListView());
}
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
// TODO Auto-generated method stub
System.out.println("Insidded onContextItemSelected");
return super.onChildClick(parent, v, groupPosition, childPosition, id);
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
menu.setHeaderTitle("Hookup Menu");
menu.add(0, 0, 0, R.string.hello);
}
public boolean onContextItemSelected(MenuItem item) {
System.out.println("Insidded onContextItemSelected");
Log.i(TAG, "onContextItemSelected");
ExpandableListContextMenuInfo info = (ExpandableListContextMenuInfo) item
.getMenuInfo();
String title = ((TextView) info.targetView).getText().toString();
int type = ExpandableListView
.getPackedPositionType(info.packedPosition);
if (type == ExpandableListView.PACKED_POSITION_TYPE_CHILD) {
int groupPos = ExpandableListView
.getPackedPositionGroup(info.packedPosition);
int childPos = ExpandableListView
.getPackedPositionChild(info.packedPosition);
Toast.makeText(this,title + ": Child " + childPos + " clicked in group " + groupPos, Toast.LENGTH_SHORT).show();
return true;
} else if (type == ExpandableListView.PACKED_POSITION_TYPE_GROUP) {
int groupPos = ExpandableListView
.getPackedPositionGroup(info.packedPosition);
Toast.makeText(this, title + ": Group " + groupPos + " clicked",
Toast.LENGTH_SHORT).show();
return true;
}
return false;
}
public class MyExpandableListAdapter extends BaseExpandableListAdapter {
Context mContext;
public MyExpandableListAdapter() {
// TODO Auto-generated constructor stub
}
public MyExpandableListAdapter(Context context) {
mContext = context;
}
public Object getChild(int groupPosition, int childPosition) {
Log.i(TAG, "getChild");
return children[groupPosition][childPosition];
}
public long getChildId(int groupPosition, int childPosition) {
Log.i(TAG, "getChildId");
return childPosition;
}
public int getChildrenCount(int groupPosition) {
Log.i(TAG, "getChildId");
return children[groupPosition].length;
}
public View getChildView(int groupPosition, int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
Log.i(TAG, "getChildView");
LayoutInflater layoutInflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = null;
TextView tt = null;
if (groupPosition == 4) {
v = layoutInflater.inflate(R.layout.button_group, null);
} else {
v = layoutInflater.inflate(R.layout.album_row, null);
tt = (TextView) v.findViewById(R.id.text1);
String myText = this.getChild(groupPosition, childPosition)
.toString();
tt.setText(myText);
CheckBox cb = (CheckBox) v.findViewById(R.id.checkbox);
cb.setVisibility(View.VISIBLE);
if (groupPosition == 0) {
ImageView icon = (ImageView) v.findViewById(R.id.rowicon);
icon.setImageResource(R.drawable.add_picture);
} else {
ImageView icon = (ImageView) v.findViewById(R.id.rowicon);
icon.setImageResource(R.drawable.add_picture);
}
}
return v;
}
public Object getGroup(int groupPosition) {
Log.i(TAG, "getGroup");
return groups[groupPosition];
}
public int getGroupCount() {
Log.i(TAG, "getGroupCount");
return groups.length;
}
public long getGroupId(int groupPosition) {
Log.i(TAG, "getGroupId");
return groupPosition;
}
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
TextView groupTitle = null;
ImageView imgDot;
LayoutInflater layoutInflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = null;
v = layoutInflater.inflate(R.layout.button_group, null);
groupTitle = (TextView) v.findViewById(R.id.TextView01);
String myText = this.getGroup(groupPosition).toString();
groupTitle.setText(myText);
imgDot = (ImageView) v.findViewById(R.id.ImageView01);
imgDot.setVisibility(View.VISIBLE);
return v;
}
public boolean isChildSelectable(int groupPosition, int childPosition) {
Log.i(TAG, "isChildSelectable");
return true;
}
public boolean hasStableIds() {
Log.i(TAG, "hasStableIds");
return true;
}
public void registerDataSetObserver(DataSetObserver observer) {
}
} // closing of MyExpandableListAdapter
} // closing of MyExpadableListActivity
我的XML观点如下
My xml views are as below
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:minHeight="?android:attr/listPreferredItemHeight"
android:gravity="center_vertical"
android:paddingLeft="?android:attr/expandableListPreferredItemPaddingLeft"
android:paddingRight="?android:attr/scrollbarSize"
android:layout_weight="1" android:background="#fafafa">
<ImageView android:id="@+id/rowicon" android:layout_width="wrap_content"
android:layout_height="fill_parent" android:layout_marginRight="6dip" /> <TextView
android:id="@+id/text1"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_weight="1"
/>
<CheckBox android:id="@+id/checkbox" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:layout_marginRight="2dip"
android:focusable="true" android:clickable="true" android:gravity="center_vertical"
android:orientation="vertical" android:duplicateParentState="true"
android:visibility="visible"
android:text="myTest"
/> </LinearLayout>
和
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:minHeight="?android:attr/listPreferredItemHeight"
android:gravity="center_vertical"
android:paddingLeft="?android:attr/expandableListPreferredItemPaddingLeft"
android:paddingRight="?android:attr/scrollbarSize"
android:layout_weight="1" android:background="#fafafa">
推荐答案
在 BaseExpandableListAdapter 是一个函数：公共布尔isChildSelectable（INT groupPosition， INT childPosition）。该函数返回默认为false。将其更改为：返回true。和你的onChildClickListener将被称为！
In the BaseExpandableListAdapter is one function: public boolean isChildSelectable(int groupPosition, int childPosition). This function returns Default false. Change it to: return true. And your onChildClickListener will be called !
这篇关于Android的ExpandableListVIew使用BaseExpandableListAdapter的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！