在listView

Question

我创建了一个＆＃34;搜索＆＃34; Android中的框。当我尝试搜索任何内容时，它没有在列表中显示更新的值。该值将进入列表但搜索相关值不会更改。这是我的快照：

如果我进入＆＃34; ab＆＃34;它运行正常，但是当我正在使用＃34;时，它会显示第一个listView项目：

这是我的Fragment类，我使用的是addTextChangeListener：

etSearchUser.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

        }

        @Override
        public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
            if (i2<i1){
                adapter.resetData();
            }
            adapter.getFilter().filter(charSequence);
        }

        @Override
        public void afterTextChanged(Editable editable) {

        }
    });

这是我的适配器类：

public class RemoveUserAdapter extends BaseAdapter implements Filterable {
private ArrayList<UserModel> listcontent;
private ArrayList<UserModel> searchList;
Context context;
private Filter planetFilter;
UserModel content, content1;
LayoutInflater inflater;

public RemoveUserAdapter(Context context, ArrayList listContent) {
    this.context = context;
    this.listcontent = listContent;
    this.searchList = listContent;
    inflater = LayoutInflater.from(context);
}

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

@Override
public Object getItem(int i) {

    return listcontent.get(i);
}

@Override
public long getItemId(int i) {
    return listcontent.get(i).hashCode();
}


class ViewHolder {
    private TextView tvEmail, tvUserId;
    private CheckBox checkBox;
}

@Override
public View getView(int i, View view, ViewGroup viewGroup) {
    final ViewHolder viewHolder, viewHolder1;
    if (view == null) {
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        view = inflater.inflate(R.layout.remove_user_adapter, null);
        viewHolder = new ViewHolder();
        viewHolder.tvEmail = (TextView) view.findViewById(R.id.tvEmailUser);
        viewHolder.tvUserId = (TextView) view.findViewById(R.id.tvUserGroup);
        viewHolder.checkBox = (CheckBox) view.findViewById(R.id.checkBox);
        viewHolder.checkBox.setVisibility(View.INVISIBLE);
        view.setTag(viewHolder);

    } else {
        viewHolder = (ViewHolder) view.getTag();
    }


    content = (UserModel) listcontent.get(i);
    content = (UserModel) searchList.get(i);
    //Log.i("@@@",content.getEmail()+" email");
    viewHolder.tvEmail.setText(content.getEmail());
    viewHolder.tvUserId.setText(content.getUsergroup());
    return view;
}

public void resetData() {
    listcontent = searchList;
}

@Override
public Filter getFilter() {
    Filter filter = new Filter() {

        @Override
        protected void publishResults(CharSequence charSequence, FilterResults result) {
            listcontent = (ArrayList<UserModel>) result.values;
            notifyDataSetChanged();
        }

        @Override
        protected FilterResults performFiltering(CharSequence constraint) {
            FilterResults results = new FilterResults();
            ArrayList<UserModel> FilteredArrList = new ArrayList<UserModel>();
            if (searchList == null) {
                searchList = new ArrayList<UserModel>(listcontent);
            }
            if (constraint == null || constraint.length() == 0) {

                // set the Original result to return
                results.count = searchList.size();
                results.values = searchList;
            } else {
                constraint = constraint.toString().toLowerCase();
                for (int i = 0; i < searchList.size(); i++) {
                    content = (UserModel) searchList.get(i);
                    String data = content.getEmail();
                    String user = content.getUserId();
                    if (data.toLowerCase().startsWith(constraint.toString())) {
                        FilteredArrList.add(new UserModel(data, user));
                    }
                }
                results.count = FilteredArrList.size();
                results.values = FilteredArrList;
            }
            return results;
        }

    };
    return filter;
}

}

对于搜索，我使用的是简单的EditText。

还有一件事就是从Gmail的第一封信中搜索。 我想让它随机搜索。

例如：abc@gmail.com在那里，如果我进入搜索框＆＃34; gmail＆＃34;它应该显示一个结果。

这是我的UserModel类：

public class UserModel {
private String usergroup;
private String name;
private String email;
private String phone;
private String password;
private String userId;

public UserModel(String email, String userGroup) {
    super();
    this.email = email;
    this.usergroup = userGroup;
}
public UserModel(){}

public String getUserId() {
    return userId;
}

public void setUserId(String userId) {
    this.userId = userId;
}

public String getPassword() {
    return password;
}

public void setPassword(String password) {
    this.password = password;
}

public String getUsergroup() {
    return usergroup;
}

public void setUsergroup(String usergroup) {
    this.usergroup = usergroup;
}

public String getPhone() {
    return phone;
}

public void setPhone(String phone) {
    this.phone = phone;
}

public String getEmail() {
    return email;
}

public void setEmail(String email) {
    this.email = email;
}

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

}

Answer 1

在Try中，您必须返回已过滤的列表计数而非原始列表计数。 有关更多信息，请参阅此要点： {{3}}

我更新了你的代码：

getCount