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我正在開發列表視圖，其中多個選擇是可能的，現在的問題是當我向下滾動或向上滾動項目的選擇丟失和選擇作出的任何其他項目，除了所選的一個。自定義列表查看多選
以下是我的活動。
public class ContactPickerActivity extends Activity {
private ArrayList<Contact> arr = new ArrayList<Contact>();
private Context context;
private ListView list;
private ContactArrayAdapter adapter;
private String strName,strNumber;
private View view;
public static ArrayList<Boolean> arrBoolean = new ArrayList<Boolean>();
@Override
public void onCreate(Bundle savedInstance) {
super.onCreate(savedInstance);
setContentView(R.layout.contact_picker);
ProgressDialog pd = new ProgressDialog(this);
list = (ListView)findViewById(R.id.contactList);
arr = new ArrayList<Contact>();
context = ContactPickerActivity.this;
arr = displayContacts();
Log.i("ContactPicker", "Completed Displaying Contact list ::: " + arr.size());
adapter = new ContactArrayAdapter(this,arr);
list.setAdapter(adapter);
// list.setAdapter(new ArrayAdapter<String>(this,
// android.R.layout.simple_list_item_multiple_choice, listContent));
list.setOnItemClickListener(ContactSelectedListener);
Log.i("Boolaean >>> ", arrBoolean.size() + "");
}
private OnItemClickListener ContactSelectedListener = new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View arg1, int arg2,long arg3) {
Log.i("ListViewTest","Item Click");
SparseBooleanArray checked = list.getCheckedItemPositions();
for (int i = 0; i < arr.size(); i++) {
Log.i("ListViewTest", arr.get(i)+ ": " + checked.get(i));
}
}
};
private ArrayList<Contact> displayContacts() {
ContentResolver cr = getContentResolver();
Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI,null, null, null, null);
Contact contact;
if (cur.getCount() > 0) {
while (cur.moveToNext()) {
contact = new Contact();
String id = cur.getString(cur.getColumnIndex(People._ID));
String name = cur.getString(cur.getColumnIndex(People.DISPLAY_NAME));
contact.setName(name);
arr.add(contact);
}
}
return arr;
}
}
********* Adapter *****
public class ContactArrayAdapter extends BaseAdapter {
// private final List<Contact> list;
private Context context;
private LayoutInflater mInflater;
private List<Contact> list;
public ContactArrayAdapter(Context context,ArrayList<Contact> arrPublicData) {
this.mInflater = LayoutInflater.from(context);
this.list = arrPublicData;
}
public int getCount() {
return list.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
final ViewHolder viewHolder;
if (view == null) {
view = mInflater.inflate(R.layout.multiselect_row, null);
viewHolder = new ViewHolder();
viewHolder.text = (TextView) view.findViewById(R.id.txtItem);
viewHolder.checkbox = (CheckBox) view.findViewById(R.id.chkItem);
viewHolder.checkbox
.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
Contact element = (Contact) viewHolder.checkbox.getTag();
element.setSelected(buttonView.isChecked());
ContactPickerActivity.arrBoolean.add(buttonView.isChecked());
Log.i("Boolaean 123 >>> ", buttonView.isChecked() + "");
}
});
view.setTag(viewHolder);
viewHolder.checkbox.setTag(list.get(position));
} else {
viewHolder = (ViewHolder) view.getTag();
((ViewHolder) view.getTag()).checkbox.setTag(list.get(position));
}
ViewHolder holder = (ViewHolder) view.getTag();
holder.text.setText(list.get(position).getName());
holder.checkbox.setChecked(list.get(position).isSelected());
return view;
}
static class ViewHolder {
protected TextView text;
protected CheckBox checkbox;
}
IM無法得到物品託運.... 任何幫助appericiated ... thanx提前
這是因爲列表視圖中再次創造了又一遍，我也面臨這個問題 – Abhi 2012-01-17 05:54:30
做u得到什麼解決辦法嗎？ – Richa 2012-01-17 05:55:09
[解決方法是在這裏]（http://stackoverflow.com/questions/7738527/getting-an-issue-while-checking-the-dynamically-generated-checkbox-through-list/7738854#7738854）。 – 2012-01-17 06:24:18