使用 listiview 取消选中 Onscroll 选中的复选框
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【中文标题】使用 listiview 取消选中 Onscroll 选中的复选框【英文标题】：Onscroll selected checkbox getting unchecked using listiview 【发布时间】：2016-06-03 20:04:14 【问题描述】：在我的应用程序中，我添加了checkbox 和ListView，并且我还限制了checkbox，用户不能选择超过5 个checkbox，但问题在于滚动我选择的checkbox 未选中以下是我的sn-p代码，有人可以帮我吗
public class CustomAdapter extends BaseAdapter
private LayoutInflater inflater = null;
Context context;
String rup = "\u20B9";
private ArrayList<ModelPooja> listData;
boolean checked[];
public CustomAdapterPooja(Context mainActivity, ArrayList<ModelPooja> listData)
// TODO Auto-generated constructor stub
context = mainActivity;
this.listData = listData;
inflater = (LayoutInflater) context.
getSystemService(Context.LAYOUT_INFLATER_SERVICE);
checked = new boolean[listData.size()];
for (int i = 0; i < checked.length; i++)
checked[i] = listData.get(i).isselected;
@Override
public int getCount()
// TODO Auto-generated method stub
return listData.size();
@Override
public Object getItem(int position)
// TODO Auto-generated method stub
return position;
@Override
public long getItemId(int position)
// TODO Auto-generated method stub
return position;
@Override
public View getView(final int position, View convertView, ViewGroup parent)
// TODO Auto-generated method stub
final ViewHolder holder;
if (convertView == null)
holder = new ViewHolder();
convertView = inflater.inflate(R.layout.list_item_poojaselection, null);
holder.tv = (TextView) convertView.findViewById(R.id.list_item_poojaname);
holder.serviceprice = (TextView) convertView.findViewById(R.id.list_item_poojaprice);
holder.dayss = (TextView) convertView.findViewById(R.id.list_item_poojadays);
holder.txtseledates = (TextView) convertView.findViewById(R.id.selecteddatess);
holder.checks = (CheckBox) convertView.findViewById(R.id.list_item_poojacheck);
convertView.setTag(holder);
else
holder = (ViewHolder) convertView.getTag();
holder.checks.setOnCheckedChangeListener(null);
holder.checks.setFocusable(false);
holder.checks.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener()
@Override
public void onCheckedChanged(CompoundButton cb, boolean b)
if (checkMaxLimit())
if (listData.get(position).isselected && b)
holder.checks.setChecked(false);
listData.get(position).isselected = false;
else
holder.checks.setChecked(false);
listData.get(position).isselected = false;
Toast.makeText(context, "Max limit reached", Toast.LENGTH_SHORT).show();
else
if (b)
listData.get(position).isselected = true;
else
listData.get(position).isselected = false;
);
if (listData.get(position).isselected())
holder.checks.setChecked(true);
else
holder.checks.setChecked(false);
holder.tv.setText(listData.get(position).getPOOJA_LISTING_NAME());
holder.dayss.setText(listData.get(position).getPOOJA_LISTING_DAYS());
holder.serviceprice.setText(rup + listData.get(position).getPOOJA_LISTING_AMOUNT());
return convertView;
public boolean checkMaxLimit()
int countermax = 0;
for (int i = 0; i < checked.length; i++)
checked[i] = false;
checked[i] = listData.get(i).isselected();
if (listData.get(i).isselected())
countermax++;
return countermax >= 5 ? true : false;
public class ViewHolder
TextView tv;
TextView serviceprice;
public CheckBox checks;
public TextView dayss;
public TextView txtseledates;
【问题讨论】：
dj-android.blogspot.in/2013/02/… 【参考方案1】：问题出在您的 getView() 方法中。您设置 OnCheckedChangeListener ，然后将复选框设置为 true 或 false ，这会在该侦听器中触发回调。您应该先设置复选框检查状态，然后再设置 OnCheckedChangeListener。
另外，那个 boolean checked[] 字段没用，所以我稍微简化了你的代码：
public class CustomAdapter extends BaseAdapter
private final LayoutInflater inflater;
private final Context context;
private List<ModelPooja> listData;
public CustomAdapter(Context mainActivity, List<ModelPooja> listData)
context = mainActivity;
this.listData = listData;
inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
@Override
public int getCount()
return listData.size();
@Override
public Object getItem(int position)
return listData.get(position);
@Override
public long getItemId(int position)
return 0;
@Override
public View getView(final int position, View convertView, ViewGroup parent)
final ViewHolder holder;
if (convertView == null)
holder = new ViewHolder();
convertView = inflater.inflate(R.layout.list_item_poojaselection, null);
holder.tv = (TextView) convertView.findViewById(R.id.list_item_poojaname);
holder.checks = (CheckBox) convertView.findViewById(R.id.list_item_poojacheck);
convertView.setTag(holder);
else
holder = (ViewHolder) convertView.getTag();
holder.checks.setOnCheckedChangeListener(null);
holder.checks.setFocusable(false);
if (listData.get(position).isselected)
holder.checks.setChecked(true);
else
holder.checks.setChecked(false);
holder.checks.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener()
@Override
public void onCheckedChanged(CompoundButton cb, boolean b)
if (checkMaxLimit())
if (listData.get(position).isselected && b)
holder.checks.setChecked(false);
listData.get(position).isselected = false;
else
holder.checks.setChecked(false);
listData.get(position).isselected = false;
Toast.makeText(context, "Max limit reached", Toast.LENGTH_SHORT).show();
else
if (b)
listData.get(position).isselected = true;
else
listData.get(position).isselected = false;
);
holder.tv.setText(listData.get(position).getPOOJA_LISTING_NAME());
return convertView;
public boolean checkMaxLimit()
int countermax = 0;
for(ModelPooja item : listData)
if(item.isselected)
countermax++;
return countermax >= 5;
public class ViewHolder
TextView tv;
public CheckBox checks;
【讨论】：
你能说一件事吗？？【参考方案2】：在适配器中创建一个初始值为假的布尔数组。如果用户检查该数组，则使数组的位置为真。取消选中使其为假。始终从该布尔数组中设置复选框值。
【讨论】：
【参考方案3】：这是因为当您从手机的上侧或下侧滚动列表视图时，列表视图的所有项目都会重新生成并设置为默认值。 为了避免这种情况，请创建一个模型类来保存复选框的当前值（true 或 false），并通过从该模型实例调用 getter 方法在适配器中设置复选框的值。 例如：
模型.java
public class AddressModel
private boolean isChecked;
private String address;
private int alAddressDelete;
public AddressModel()
public AddressModel(boolean isChecked, String address, int alAddressDelete)
this.isChecked = isChecked;
this.address = address;
this.alAddressDelete = alAddressDelete;
public boolean getIsChecked()
return isChecked;
public void setIsChecked(boolean isChecked)
this.isChecked = isChecked;
在您的适配器类中，通过在setOnCheckedChangeListener() 中调用setIsChecked(boolean isChecked) 来设置复选框的值。
调用 getIsChecked() 来设置复选框的值。
【讨论】：
【参考方案4】：先调用setOnCheckedChangeListener()，再调用setChecked()，否则setChecked()会触发前一个ViewHolder对象的setOnCheckedChangeListener()。
【讨论】：
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