آپديت كردن يك آيتم در ليست ويوو

 وقتی آرایه تغییر بکنه لیست ویو تغییر میکنه بعد از 5 ثانیه .

 Thread thread = new Thread(new Runnable() {

 @Override
 public void run() {

 while (true) {
 try {

 Thread.sleep(5000);
 G.HANDLER.post(new Runnable() {

 @Override
 public void run() {

 adapter.notifyDataSetChanged();

 }
 });

 }
 catch (InterruptedException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 }
 }

 });

 thread.start();

ببينيد اين كد منه:

 com.example.blog

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.util.Arrays;
import android.support.v7.app.ActionBarActivity;
import android.text.Html;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnFocusChangeListener;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SearchView;
import android.widget.SearchView.OnQueryTextListener;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;

public class Magazine extends ActionBarActivity {

	private ListView lv;
	String[] id,title,content,commect_c,pic,cat,vc,lc;
	String tid,ttitle,tconent,tcomment,tpic,tcat,tvc,tlc;
	private int cpage=1,srch=0;
	private int count;
	private double apage;
	private TextView tpage;
	private ImageButton next_btn,rev_btn;
	private String res="";
	private Bitmap[] img;
	private SearchView searchv;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.magazine_layout);
		
		tpage=(TextView) findViewById(R.id.magazine_statuts_txt);
		next_btn=(ImageButton) findViewById(R.id.mag_next_btn);
		rev_btn=(ImageButton) findViewById(R.id.mag_rev_btn);
		lv=(ListView) findViewById(R.id.mag_list);
		lv.setDivider(null);

		lv.setOnItemClickListener(new OnItemClickListener() {

		    @Override
		    public void onItemClick(AdapterView<?> parent, View view, int position, long idt) {
		    	Intent i=new Intent(Magazine.this,Mag_post_data.class);
				i.putExtra("id",Integer.parseInt(id[position]));
				startActivity(i);
		    }
		});
		
		next_btn.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View arg0) {
				if(cpage==apage){
					Toast.makeText(getApplication(),"آخرين صفحه",Toast.LENGTH_LONG).show();
				}else{
					cpage++;
					new getpost().execute();
				}
			}
		});
		
		rev_btn.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View arg0) {
				if(cpage==1){
					Toast.makeText(getApplication(),"اولين صفحه",Toast.LENGTH_LONG).show();
				}else{
					cpage--;
					new getpost().execute();
				}
			}
		});
		
		new getpost().execute();
		
		
	}

	private void makearray(int c){
		
		id=new String[c];
		title=new String[c];
		content=new String[c];
		pic=new String[c];
		img=new Bitmap[c];
		commect_c=new String[c];
		cat=new String[c];
		vc=new String[c];
		lc=new String[c];
		
		Arrays.fill(title, "");
		
		Bitmap img_temp=BitmapFactory.decodeResource(getResources(), R.drawable.no_img_reco);
		Arrays.fill(img, img_temp);
		
	}
//---------------------------in method moshakhasat va joziate posto migire-----------------------------
	public class getpost extends AsyncTask{
		
		ProgressDialog pd;

		protected void onPreExecute() {
			super.onPreExecute();
			pd=new ProgressDialog(Magazine.this);
			pd.setCancelable(false);
			pd.setMessage("درحال بارگذاري");
			pd.getWindow().setGravity(Gravity.CENTER);
			pd.show();
			
		};
		
		@Override
		protected Object doInBackground(Object... arg0) {
			
			try{
				String data=URLEncoder.encode("page","utf8")+"="+URLEncoder.encode(cpage+"","utf8");
				URL link=new URL("http://192.168.1.2/drjibi_adc/webs/get_list_p.php");
				URLConnection connect=link.openConnection();
				
				//send data
				connect.setDoOutput(true);
				OutputStreamWriter wr=new OutputStreamWriter(connect.getOutputStream());
				wr.write(data);
				wr.flush();
				
				BufferedReader reader=new BufferedReader(new InputStreamReader(connect.getInputStream()));
				
				StringBuilder sb=new StringBuilder();
				
				String line=null;
				
				while((line=reader.readLine()) != null){
					sb.append(line);
				}
				
				res=sb.toString();
				
				for(int y=0;y<4;y++){
					if(res.charAt(y)=='☻'){
						count=Integer.parseInt(res.substring(1, y));
						res=res.substring(y+1);
						break;
					}
				}
			
				for(int y=0;y<4;y++){
					if(res.charAt(y)=='☻'){
						apage=Integer.parseInt(res.substring(0, y));
						res=res.substring(y+1);
						break;
					}
				}
				
				
				makearray(count);
				
				int f=0,c=0;
				for(int i=0;i<res.length();i++){
					if(res.charAt(i)=='☻'){
						String temp=res.substring(f,i);
						
						if(c==0){
							tid=temp;
						}
						if(c==1){
							ttitle=temp;
						}
						if(c==2){
							tconent=temp;
						}
						if(c==3){
							tpic=temp;
						}
						if(c==4){
							tcomment=temp;
						}
						if(c==5){
							tvc=temp;
						}
						if(c==6){
							tlc=temp;
						}
						if(c==7){
							tcat=temp;
							
							for(int t=0;t<count;t++){
								if(title[t].equals("")){
									id[t]=tid;
									title[t]=ttitle;
									content[t]=tconent;
									commect_c[t]=tcomment;
									vc[t]=tvc;
									lc[t]=tlc;
									cat[t]=tcat;
									new getimage(tpic, t).execute();
									break;
								}
							}
							c=-1;
						}
						f=i+1; c+=1;
						
					}
				}
				Log.i("error","error nadarim");
				
			}catch(Exception e){res=e.toString();
			Log.i("error",e.toString());}
			
			
			return ""; 
		}
		
		@Override
    	protected void onPostExecute(Object result) {
    		super.onPostExecute(result);
    		pd.dismiss();
    		
    		apage=Math.ceil(apage/10);
    		tpage.setText("صفحه "+cpage+" از "+(int)apage);
    		
    		lv.setAdapter(new AA());
    		

    	}
    	
    	
		
		
	}
//---------------------------------in method ax ro migire mirize tu arrayeha va mid ebe mthode get poste balai ------------
	public class getimage extends AsyncTask<String, Void, Bitmap>{
		private String url;
		private int P;
		public getimage(String u,int p){
			url=u;
			P=p;
		}

		@Override
		protected Bitmap doInBackground(String... arg0) {
			
			Bitmap temp=null;
			try{
				url=url.replace("uploads", "http://192.168.1.2/drjibi_adc/uploads"); //just for local host
				InputStream in=new java.net.URL(url).openStream();
				temp=BitmapFactory.decodeStream(in);
			}catch(Exception e){
				
			}
			return temp;
		}
		
		@Override
		protected void onPostExecute(Bitmap result) {
			super.onPostExecute(result);
			
				img[P]=result;
				lv.setAdapter(new AA());
		}
	}

	//classe adaptore listview
	class AA extends ArrayAdapter<String>{
		
		
		public AA(){
			super(Magazine.this, R.layout.row_magazine, title);
		}
		
		@Override
		public void notifyDataSetChanged() {
			super.notifyDataSetChanged();
			
		}
		
		@Override
		public View getView(int position,View convertView, ViewGroup parent) {
			LayoutInflater Inf= (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
	        View row=Inf.inflate(R.layout.row_magazine, parent, false);
	        
			TextView p_cat = (TextView) row.findViewById(R.id.post_l_cat_txt);
			TextView p_title = (TextView) row.findViewById(R.id.post_l_title_txt);
			TextView p_cont = (TextView) row.findViewById(R.id.post_l_cont_txt);
			TextView p_comment = (TextView) row.findViewById(R.id.mag_c_c);
			TextView p_view = (TextView) row.findViewById(R.id.mag_v_c);
			TextView p_like = (TextView) row.findViewById(R.id.mag_l_c);
			ImageView p_img = (ImageView) row.findViewById(R.id.post_img);
			
			
			String con=Html.fromHtml(content[position]).toString().replace("\n", "  ");
			if(con.length()>60){con=con.substring(0, 60);}
			
			p_title.setText(title[position]);
			p_cat.setText(cat[position]);
			p_cont.setText(con+"...");
			p_cont.setMaxLines(1);
			p_comment.setText(commect_c[position]);
			p_view.setText(vc[position]);
			p_like.setText(lc[position]);
			p_img.setImageBitmap(img[position]);
			
			
			
			
			return (row);
 		}

		
	}
}

الان روي اين بخوام اوني كه ميگيد رو، چجوري بايد اعمال كنم؟

ببخشید من اینجا جواب رو میذارم هر چند سوال قدیمیه ولی احتمالا به درد بعضی ها بخوره

فقط کدها رو کامل میذارم که مشخص تر باشه.شاید اصلا نیاز نبود ولی خوب بهتره(دقیقا همون کدهای پروژه استاد رو باهاش کار میکنیم)

کلاس StructNote:

public class StructNote {
public String title;
public String description;
public boolean done;

}

کلاس AdapterNote:

import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;

import java.util.ArrayList;

public class AdapterNote extends ArrayAdapter<StructNote> {
public AdapterNote(ArrayList<StructNote> array) {
super(G.context,R.layout.adapter_note , array);
    }


private static class ViewHolder{
public ViewHolder(View view){

        }

public void fill(ArrayAdapter<StructNote> adapter , StructNote item , int position){

        }
    }


@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
StructNote item = getItem(position);
if(convertView == null){
convertView = G.inflater.inflate(R.layout.adapter_note , parent , false);
holder = new ViewHolder(convertView);
convertView.setTag(holder);
        }else{
holder = (ViewHolder) convertView.getTag();
        }

holder.fill(this , item , position);
return convertView;
    }
}

کلاس G:

import android.app.Application;
import android.content.Context;
import android.view.LayoutInflater;
import android.widget.ArrayAdapter;

public class G extends Application {

public static Context context;
public static LayoutInflater inflater;
public static ArrayAdapter<StructNote> adapter;

@Override
public void onCreate() {
super.onCreate();
context = getApplicationContext();
inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    }
}

کلاس MainActivity:

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.widget.ListView;

import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {

public ArrayList<StructNote> notes = new ArrayList<>();

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);


G.adapter = new AdapterNote(notes);
ListView lstContent = (ListView) findViewById(R.id.lstContent);
lstContent.setDivider(null);
lstContent.setAdapter(G.adapter);

for (int i = 1; i < 20; i++) {
StructNote note = new StructNote();
note.title = "title#" + i;
note.description = "desc#" + i;
note.done = true;
notes.add(note);
        }

G.adapter.notifyDataSetChanged();


Thread thread = new Thread(new Runnable() {
@Override
public void run() {
try {
Thread.sleep(10000);
G.adapter.getItem(15) // خروجی از جنس StructNote دارد
.description = "t";

G.adapter.notifyDataSetChanged();
                } catch (InterruptedException e) {
e.printStackTrace();
                }
            }
        });
        
thread.start();

    }

}

با این کار بعد 10 ثانیه دسکریپشن آیتم 15 تغییر میکنه