我的Android应用程序代码存在问题。 我有一些可扩展的列表视图和一些数据。
2秒后，我会定期使用命令NotifyDataSetChanged来更新我的所有数据。
问题是我有一个搜索栏，如果我改变了进度，那么在这2秒之后，数据就会更新，进度也会不断变化。
我不知道我可以做什么只更新可扩展列表视图中的行但不是全部。
final Handler handler = new Handler();
timer3 = new Timer();
czyUruchomionoTimer=true;
TimerTask doAsynchronousTask = new TimerTask() {
@Override
public void run() {
handler.post(new Runnable() {
public void run() {
exAdpt.notifyDataSetChanged();
}
});
}
};
timer3.schedule(doAsynchronousTask, 100, 2000);
}
以下是我的适配器的代码：
package akme.akmewiz_new;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.BaseExpandableListAdapter;
import android.widget.Button;
import android.widget.ExpandableListView;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
public class ListAdapter_Exp extends BaseExpandableListAdapter {
private List<List_KategoriaObiekty> catList;
private Context ctx;
private LayoutInflater inflater;
private ExpandableListView list;
private String numerIP;
int tempMax = 35;
int tempMin = 10;
private String numerID;
Boolean wejscie = false;
int max = (tempMax-tempMin)*2 ;
final private static int DIALOG_LOGIN = 1;
public ListAdapter_Exp(List<List_KategoriaObiekty> catList, Context ctx, String ip, String ID, Boolean wejscie) {
this.catList = catList;
this.ctx = ctx;
this.inflater = (LayoutInflater)ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
this.numerIP= ip;
this.numerID = ID;
this.wejscie=wejscie;
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return catList.get(groupPosition).getItemList();
}
@Override
public long getChildId(int groupPosition, int childPosition) {
Object obj = catList.get(Integer.valueOf(numerID)).getItemList().get(groupPosition+2);
Lista_menu menus = (Lista_menu) obj;
return menus.getTabelaNazwaItem(childPosition).hashCode();
}
@Override
public View getChildView(int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
ViewHolder holder;
final int tempgroupPos = groupPosition;
View v = convertView;
Object obj = catList.get(Integer.valueOf(numerID)).getItemList().get(groupPosition+2);
Lista_menu menus = (Lista_menu) obj;
if(true){
holder = new ViewHolder();
v = inflater.inflate(getLayoutId(ctx,"list_exp_"+menus.getTabelaSposobPrezentacji(childPosition)),null);
Log.d("TAGS","list_exp_"+menus.getTabelaSposobPrezentacji(childPosition));
list = (ExpandableListView) parent.findViewById(R.id.listExp);
if(menus.getTabelaSposobPrezentacji(childPosition).equals("0")) {
holder.item_nazwa = (TextView) v.findViewById(R.id.item_0_nazwa);
holder.item_wartosc = (TextView) v.findViewById(R.id.item_0_wartosc);
Log.d("TAGS","tworze0 "+menus.getTabelaSposobPrezentacji(childPosition));
}
if(menus.getTabelaSposobPrezentacji(childPosition).equals("1")) {
holder.item_nazwa = (TextView) v.findViewById(R.id.item_0_nazwa);
holder.Seek = (SeekBar) v.findViewById(R.id.seekTemp);
holder.Lab1 = (TextView) v.findViewById(R.id.tvLabel1);
holder.Lab3 = (TextView) v.findViewById(R.id.tvLabel3);
holder.Seek.setTag(childPosition + 1);
Log.d("TAGS","tworze1 "+menus.getTabelaSposobPrezentacji(childPosition));
}
v.setTag(holder);
}else{
holder = (ViewHolder) v.getTag();
}
if(menus.getTabelaSposobPrezentacji(childPosition).equals("0")){
holder.item_nazwa.setText(menus.getTabelaNazwaItem(childPosition));
holder.item_wartosc.setText(menus.getTabelaWartoscItem(childPosition));
Log.d("TAGS","wpisuje "+menus.getTabelaSposobPrezentacji(childPosition));
}
if(menus.getTabelaSposobPrezentacji(childPosition).equals("1")){
holder.item_nazwa.setText(menus.getTabelaNazwaItem(childPosition));
holder.Lab1.setText("10.0" + " \u2103");
holder.Lab3.setText("35.0" + " \u2103");
holder.Seek.setMax(max);
Log.d("TAGS","wpisuje "+menus.getTabelaSposobPrezentacji(childPosition));
holder.Seek.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
notifyDataSetChanged();
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
float przelicznik = (float) ((progress / 2.0) + 10.0);
View view = (View) seekBar.getParent();
if (view != null) {
TextView tvProgress2 = (TextView) view.findViewById(R.id.tvLabel2);
TextView tvProgress1 = (TextView) view.findViewById(R.id.tvLabel1);
TextView tvProgress3 = (TextView) view.findViewById(R.id.tvLabel3);
tvProgress1.setText(Float.toString(tempMin) + " \u2103");
tvProgress2.setText(Float.toString(przelicznik) + " \u2103");
tvProgress3.setText(Float.toString(tempMax) + " \u2103");
}
Object obj = catList.get(Integer.valueOf(numerID)).getItemList().get(tempgroupPos+2);
Lista_menu menus = (Lista_menu) obj;
String ustaw = Float.valueOf(przelicznik).toString();
menus.setTabelaWartoscItem2(ustaw,childPosition);
}
});
String str1 = menus.getTabelaWartoscItem2(childPosition);
if(wejscie){
str1 = menus.getTabelaWartoscItem(childPosition);
wejscie=false;
}
int ustaw1 =(int)(( ( ( (Float.parseFloat(str1.replaceAll("\\D+","")))/10)*2)-20));
holder.Seek.setProgress(ustaw1);
}
return v;
}
@Override
public int getChildrenCount(int groupPosition) {
Object obj = catList.get(Integer.valueOf(numerID)).getItemList().get(groupPosition+2);
Lista_menu menus = (Lista_menu) obj;
return menus.ilosc();
}
@Override
public Object getGroup(int groupPosition) {
return catList.get(groupPosition+2);
}
@Override
public int getGroupCount() {
int ilosc = catList.get(Integer.valueOf(numerID)).getItemList().size();
return ilosc-2;
}
@Override
public long getGroupId(int groupPosition) {
return catList.get(Integer.valueOf(numerID)).hashCode();
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
GroupViewHolder holder;
View v = convertView;
if(v==null || !isExpanded || isExpanded){
holder = new GroupViewHolder();
v = inflater.inflate(R.layout.list_group_item_exp,null);
list = (ExpandableListView) parent.findViewById(R.id.listExp);
holder.groupName = (TextView) v.findViewById(R.id.groupName);
holder.groupImage = (ImageView) v.findViewById(R.id.groupImage);
holder.groupIndicator = (ImageView) v.findViewById(R.id.imageView5);
holder.groupImage.setTag(groupPosition + 11);
list.setDividerHeight(8);
v.setTag(holder);
}else{
holder = (GroupViewHolder) v.getTag();
}
if(isExpanded){
holder.groupIndicator.setImageResource(R.mipmap.arrow_g);
}else{
holder.groupIndicator.setImageResource(R.mipmap.arrow_d);
}
holder.groupName.setTextColor(Color.parseColor("#e3e9e4"));
list.setDividerHeight(8);
List<Object> lista = catList.get(Integer.valueOf(numerID)).getItemList();
Object obj = lista.get(groupPosition + 2);
v.setBackgroundResource(R.drawable.lista_obiekty_niebieski);
Lista_menu menu = (Lista_menu) obj;
String obraz = menu.getObrazek();
holder.groupImage.setImageResource(getImageId(ctx,"ico_" + obraz));
holder.groupName.setText(menu.getNazwaGrupy());
return v;
}
@Override
public boolean hasStableIds() {
return true;
}
public static int getImageId(Context context, String imageName) {
return context.getResources().getIdentifier("mipmap/" + imageName, null, context.getPackageName());
}
public static int getLayoutId(Context context, String name) {
return context.getResources().getIdentifier("layout/" + name, null, context.getPackageName());
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return false;
}
class ViewHolder {
TextView item_nazwa, item_wartosc, Lab1, Lab3, Lab2;
SeekBar Seek;
}
class GroupViewHolder {
TextView groupName;
ImageView groupImage, groupIndicator;
}
}