Question

我有自定义列表适配器和复选框我想删除选中项目上的列表项。在将此片段删除的项目返回列表视图后删除列表视图的项目时。当检查项目时出现下一个问题（这个问题用于点击正文列表视图而不是点击复选框）删除所有选中的项目不是一起删除大多数点击不止一次删除按钮。任何人帮助我，我很享受我的片段

        listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL);

    listView.setOnItemClickListener( new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

            chk = (CheckBox) view.findViewById(R.id.checkBox6);
            chk.toggle();               

        }
    });
                    Button btn = (Button) view.findViewById(R.id.button1);      
    btn.setOnClickListener( new OnClickListener() {

        @Override
        public void onClick(View v) {
            for (int i = 0; i < list.size()/*this is the original model*/; i++) {

               if(list.get(i).isSelected()==true){  
                   adapter.remove(list.get(i));
                }                  
            }
            adapter.notifyDataSetChanged(); 

        }
    })

listadapter

public class ListAdapter extends BaseAdapter {
private final String TAG = "*** ListAdapter ***";
Context context;
 LayoutInflater myInflater;
 List<contac> list;
    CheckBox checkBox6;
public ListAdapter(Context context) {
    super();
    myInflater = LayoutInflater.from(context);
    this.context = context;
    Log.i(TAG, "Adapter setuped successfully.");
}
public void remove(contac object) {
    list.remove(object);
    notifyDataSetChanged();
}   
public void setData(List<contac> list) {
    this.list = list;

    Log.i(TAG, "Data passed to the adapter.");
}

@Override
public int getCount() {
    return list.size();
}

@Override
public Object getItem(int position) {
    return position;
}

@Override
public long getItemId(int position) {
    return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
    final ViewHolder holder;        

    if (convertView == null) {
        convertView     = myInflater.inflate(R.layout.list_adapter, null);
        holder          = new ViewHolder();
    //  holder.tvId     = (TextView) convertView.findViewById(R.id.tvId);
        holder.tvName   = (TextView) convertView.findViewById(R.id.tvName);
        holder.tvPhone  = (TextView) convertView.findViewById(R.id.tvPhone);
        holder.tvnum    = (TextView) convertView.findViewById(R.id.tvnum);
        holder.tvtype   = (TextView) convertView.findViewById(R.id.tvtype);
        holder.tvcode   = (TextView) convertView.findViewById(R.id.tvcode);
        holder.tvesme   = (TextView) convertView.findViewById(R.id.tvesme);
        holder.checkBox6    =  (CheckBox)convertView.findViewById(R.id.checkBox6);  
        holder.checkBox6
          .setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton buttonView,
                boolean isChecked) {
              contac element = (contac) holder.checkBox6.getTag();
              element.setSelected(buttonView.isChecked());
            }
          });
        convertView.setTag(holder);
        holder.checkBox6.setTag(list.get(position));

    } else {
        holder = (ViewHolder) convertView.getTag();
        ((ViewHolder) convertView.getTag()).checkBox6.setTag(list.get(position));
    }
//  ViewHolder  holder = (ViewHolder) convertView.getTag();
    NumberFormat format = NumberFormat.getCurrencyInstance();
//  holder.tvId.setTag(list.get(position).getIdInString());
//  holder.tvId.setText(list.get(position).getIdInString());
    holder.tvName.setText(format.format(list.get(position).getName()));
    holder.tvPhone.setText(format.format(list.get(position).getPhoneNumber()));
    holder.tvnum.setText(list.get(position).getNUM());  
    holder.tvtype.setText(list.get(position).getTYPE());
    holder.tvcode.setText(list.get(position).getCODE());
    holder.tvesme.setText(list.get(position).getESME());
    holder.checkBox6.setChecked(list.get(position).isSelected());       
    return convertView;
}
static class ViewHolder {
//  TextView tvId;
    TextView tvName;
    TextView tvPhone;
    TextView tvnum;
    TextView tvtype;
    TextView tvcode;
    TextView tvesme;
    CheckBox checkBox6;
}
public List<contac> getcontac() {
    return list;
}   
public void remove(Object position) {
    list.remove(position);  
}
      }

联络

public class contac {
private long id;
private int name;
private int phoneNumber;
private String num;
private String code;
private String esme;
private String type;
      private boolean selected;
public  contac (long id, int name, int phoneNumber,
        String num, String code ,String esme, String type) {
    this.id = id;
    this.name = name;
    this.phoneNumber = phoneNumber;
    this.code = code;
    this.esme = esme;
    this.type = type;
    selected = false;       
}
public long getId() {
    return id;
}   
public String getIdInString() {
    return Long.toString(id);
}   
public int getName() {
    return name;
}
public String getNameInString() {
    return Long.toString(name);
      }
public int getPhoneNumber() {
    return phoneNumber;
}   
public String getPhoneNumberInString() {
    return Long.toString(phoneNumber);
}       
public String getNUM() {
    return num;
}   
public String getTYPE() {
    return type;
}
public String getCODE() {
    return code;
}
public String getESME() {
    return esme;
}   
public void setId(long id) {
    this.id = id;
}       
public void setName(int name) {
    this.name = name;
}   
public void setPhoneNumber(int phoneNumber) {
    this.phoneNumber = phoneNumber;
}
public void setNUM(String num) {
    this.num = num;
}
public void setTYPE(String type) {
    this.type = type;
}
public void setCODE(String code) {
    this.code = code;
}
public void setESME(String esme) {
    this.esme = esme;
}
  public boolean isSelected() {
    return selected;
}
  public void setSelected(boolean selected) {
    this.selected = selected;
}
      }

Answer 1

如果列表视图内容已更改，请按this答案获取有关如何更新适配器的说明。根据该答案更新您的适配器

private class CustomListAdapter extends ArrayAdapter<CustomModel> {

    // you adapter code here...

    public void updateList(List<CustomModel> list) {

        this.list = list;
        notifyDataSetChanged();

    }

并将其作为yourAdapterInstance.updateList(newListContent)

从活动中调用

从ListView中删除项目

1 个答案: