我无法在 ListView 上选择项目。我使用自定义适配器来设置 ListView 的内容。我已经设置了 ListView 的 OnItemClickListener。然而，它没有回应。我感谢你的帮助。这是我的代码：
列表项（connections.xml）：
<?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:orientation="horizontal"
android:padding="6dip" >
<LinearLayout
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="0.90"
android:orientation="vertical" >
<TextView
android:id="@+id/connname"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/acc1" />
<TextView
android:id="@+id/conntype"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="9sp"
android:text="@string/acctype1" />
</LinearLayout>
<CheckBox
android:id="@+id/checkBox1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
包含 ListView (groupconnections.xml) 的屏幕：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dip"
android:layout_marginBottom="5dip"
android:orientation="vertical"
android:id="@+id/textOperLayout">
<TextView
android:id="@+id/connectionsLabel"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/connections"
android:textColor="@color/conn_text"
android:textSize="25sp"
android:paddingTop="5dp"
android:paddingBottom="5dp"
android:paddingLeft="15dp"
android:background="@color/conn_back"/>
<EditText
android:id="@+id/searchEditText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="@string/searchhint"
android:layout_marginTop="10dp"
android:inputType="textPersonName" />
</LinearLayout>
<LinearLayout android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="100dip"
android:layout_marginBottom="50dip"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_above="@+id/textOperLayout"
android:id="@+id/listviewlayout">
<ListView
android:id="@+id/connectionlist"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:choiceMode="singleChoice" />
</LinearLayout>
<Button
android:id="@+id/addConnCommitButton"
android:layout_width="fill_parent"
android:layout_height="50dp"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginLeft="15dp"
android:text="@string/commitToAdd" />
</RelativeLayout>
相关活动（AddMoreConnections.xml）：
public class AddMoreConnections extends Activity implements OnItemClickListener{
private ListView mainListView ;
private ArrayAdapter<AbstractHolder> listAdapter ;
private TextView searchConnTextView;
private Button commitButton;
private ArrayList<AbstractHolder> connlist;
private ArrayList<AbstractHolder> listNotOnView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Generate list View from ArrayLis
setContentView(R.layout.groupconnections);
addListenerOnSearchConnTextView();
//Initialize properties
mainListView = (ListView) findViewById( R.id.connectionlist );
mainListView.setOnItemClickListener(this);
// Create and populate a List of planet names.
listNotOnView = new ArrayList<AbstractHolder>();
connlist = new ArrayList<AbstractHolder>(5);
Iterator<AbstractHolder> iter = SocialRssModel.holders.values().iterator();
while(iter.hasNext())
connlist.add(iter.next());
// Create ArrayAdapter using the planet list.
listAdapter = new CustomAdapter(this,
R.layout.connlist, connlist);
mainListView.setAdapter( listAdapter );
}
public void addListenerToFinishButton(){
commitButton = (Button) findViewById(R.id.addConnCommitButton);
commitButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
}
});
}
public void addListenerOnSearchConnTextView(){
searchConnTextView = (TextView) findViewById(R.id.searchEditText);
searchConnTextView.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
int listNotOnViewsize = listNotOnView.size();
int connlistsize = connlist.size();
for(int i= 0; i < connlistsize; i++){
if(!connlist.get(i).connNameContains(s.toString())){
listNotOnView.add(connlist.remove(i));
i--;
connlistsize--;
}
}
for(int i=0; i < listNotOnViewsize; i++){
if(listNotOnView.get(i).connNameContains(s.toString())){
connlist.add(listNotOnView.remove(i));
i--;
listNotOnViewsize--;
}
}
((CustomAdapter) listAdapter).updateList(connlist);
listAdapter.notifyDataSetChanged();
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void afterTextChanged(Editable s) {
}
});
}
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
AbstractHolder temp = (AbstractHolder)mainListView.getItemAtPosition(arg2);
Intent i = new Intent(this, CategoryContentViewerController.class);
Bundle b = new Bundle();
b.putInt("AbstractHolderKey", temp.getId());
i.putExtras(b);
startActivity(i);
finish();
}
private class CustomAdapter extends ArrayAdapter<AbstractHolder> {
private ArrayList<AbstractHolder> connectionList;
public CustomAdapter(Context context, int textViewResourceId, ArrayList<AbstractHolder> connList) {
super(context, textViewResourceId, connList);
this.connectionList = new ArrayList<AbstractHolder>();
this.connectionList.addAll(connList);
}
public void updateList(ArrayList<AbstractHolder> connList){
connectionList.clear();
connectionList.addAll(connList);
}
private class ViewHolder {
TextView name;
TextView acctype;
CheckBox sel;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
Log.v("ConvertView", String.valueOf(position));
if (convertView == null) {
LayoutInflater vi = (LayoutInflater)(((Activity)this.getContext()).getSystemService(Context.LAYOUT_INFLATER_SERVICE));
convertView = vi.inflate(R.layout.connlist, null);
holder = new ViewHolder();
holder.name = (TextView) convertView.findViewById(R.id.connname);
holder.acctype = (TextView) convertView.findViewById(R.id.conntype);
holder.sel = (CheckBox) convertView.findViewById(R.id.checkBox1);
convertView.setTag(holder);
}
else {
holder = (ViewHolder) convertView.getTag();
}
AbstractHolder conn = connectionList.get(position);
holder.name.setText(conn.getName());
holder.acctype.setText(conn.getConntype());
holder.sel.setChecked(conn.isSelected());
holder.sel.setTag(conn);
return convertView;
}
}
}