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我檢查所有類似問題的主題，但我仍然停留在死點。我有一個列表視圖與聯繫人列表，但是當我向下滾動並向上滾動列表視圖不保存我的選擇狀態。所有複選框都設置爲false。當我調試我看到，當我滾動列表視圖時，我的onClickListener認爲複選框簽名並重置此。我做的一切，其他的陣列位置布爾，等等等等，我仍然不知道該怎麼辦:(我會爲任何幫助:)Android：列表視圖不保存複選框的狀態
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
readContacts();
Contact_Database dbhandler = new Contact_Database(
getApplicationContext(), null, null, 1);
numbers.addAll(dbhandler.getAllNumbers());
System.out.println("onCreate");
ListView lv = getListView();
registerForContextMenu(lv);
lv.setTextFilterEnabled(true);
lv.clearChoices();
MyAdapter adapter = (new MyAdapter(this, R.layout.contact_list_sms, contacts));
adapter.notifyDataSetChanged();
lv.setAdapter(adapter);
}
/**
* When I destroy intent i send request to database, faster!
*/
@Override
protected void onDestroy() {
super.onDestroy();
for (int i = 0; i < numbers.size(); ++i)
System.out.println("@@@@" + numbers.get(i));
swap_contacts();
}
class MyAdapter extends ArrayAdapter<Contact> {
LayoutInflater inflat;
public MyAdapter(Context context, int textViewResourceId,
ArrayList<Contact> objects) {
super(context, textViewResourceId, objects);
inflat = LayoutInflater.from(context);
System.out.println("LOLLLLL");
notifyDataSetChanged();
}
@Override
public int getItemViewType(int position) {
return (position == this.getCount() - 1) ? 1 : 0;
}
@Override
public int getViewTypeCount() {
return 2;
}
// if that contact exist in database? numbers, in onCreate method
// i init this with saved position from databse
private boolean exist(String x) {
for (int i = 0; i < numbers.size(); i++)
if (numbers.get(i).compareTo(x) == 0)
return true;
return false;
}
@SuppressLint("NewApi")
@Override
public View getView(int position, View convertView, ViewGroup parent) {
System.out.println("ROWS !!! ->" + numbers.size());
ViewHolder holder = null;
if (convertView == null) {
holder = new ViewHolder();
convertView = inflat.inflate(R.layout.contact_row, null);
holder.textView1 = (TextView) convertView
.findViewById(R.id.name);
holder.textView2 = (TextView) convertView
.findViewById(R.id.number);
holder.on_off = (CheckBox) convertView
.findViewById(R.id.enable);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
Contact it = contacts.get(position);
Log.v("XXX", holder.toString());
if (it != null) {
holder.textView1.setText(contacts.get(position).name);
holder.textView2.setText(contacts.get(position).phone);
// update state of checbox from database
if (exist(contacts.get(position).phone))
holder.on_off.setChecked(true);
else
holder.on_off.setChecked(false);
}
final int element_position = position;
holder.on_off
.setOnCheckedChangeListener(new OnCheckedChangeListener() {
// update list when we click on it
@Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
String nr_telefonu = contacts.get(element_position).phone;
if (isChecked) {
numbers.add(nr_telefonu);
} else {
numbers.remove(nr_telefonu);
}
}
});
return convertView;
}
@Override
public Contact getItem(int position) {
return contacts.get(position);
}
private class ViewHolder {
TextView textView1, textView2;
CheckBox on_off;
public String toString() {
return "-";
}
}
}
教程在這個博客是非常有益的！ – pkruk
@neptyd如果它真的解決了你的問題，請回答我的答案。 –