Java “我的微调器”和“列表视图”中的重复数据

我从数据库接收数据时遇到问题。正如我的代码所确定的，我的数据库（TBL_MAHRIE）包含三列（ID、COL_SAL、COL_NERKH）。在运行我的项目时，我在spinner和ListView中都收到了重复的数据

java（我的微调器加载在这里）

---

在DataBaseHandler.java中，进行以下更改

 public List<Shakhes> getAllShakhes() {
    List<Shakhes> shakhess = null;

    Cursor c = database.rawQuery("SELECT * FROM TBL_MAHRIE",null);
    //Cursor c = database.query("TBL_MAHRIE", new String[] { "ID", "COL_SAL",   "COL_NERKH" }, null, null, null, null, null);
    shakhess = new ArrayList<Shakhes>();

    if (c.moveToFirst()) {          
        do {
Shakhes p = new Shakhes();
            p.setId((int) c.getLong(c.getColumnIndex("ID")));
            p.setSal(c.getString(c.getColumnIndex("COL_SAL")));
            p.setNerkh(c.getString(c.getColumnIndex("COL_NERKH")));

            shakhess.add(p);
        } while (c.moveToNext()); 
        return shakhess;

} 
    return shakhess;
   }

public List getAllShakhes（）{
列表shakhess=null；
游标c=database.rawQuery（“SELECT*fromtbl_MAHRIE”，null）；
//游标c=database.query（“TBL_MAHRIE”，新字符串[]{“ID”，“COL_SAL”，“COL_NERKH”}，null，null，null，null）；
shakhess=newarraylist（）；
如果（c.moveToFirst（））{
做{
Shakhes p=新Shakhes（）；
p、 setId（（int）c.getLong（c.getColumnIndex（“ID”））；
p、 setSal（c.getString（c.getColumnIndex（“colu-SAL”））；
p、 setNerkh（c.getString（c.getColumnIndex（“COL_NERKH”）））；
加上（p）；
}而（c.moveToNext（））；
返回shakhess；
} 
返回shakhess；
}

}

---

对行进行编码

Shakhes p=new Shakhes（）内部执行while循环。否则，它将覆盖旧的，并将在arraylist中添加相同的内容。
多亏了Nizam，但不幸的是没有起作用。虽然我替换了您的代码，但我的活动重复了最后一条记录而不是所有记录（6次）。我清除了缓存并卸载了应用程序，但没有发生任何特殊情况。您是否检查了数据库？表中插入的值是否正确？从DDMS文件管理器推送数据库并检查。是的，我已经使用SQLite数据浏览器插件检查了数据。数据插入正确。OOOOOOH，解决了，这只是因为我的变量在Shakhes.java中定义为静态。thx到尼扎姆。
package ir.dadpardaz.mahrie_dadpardaz;

import java.util.ArrayList;
import java.util.List;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteDatabase.CursorFactory;
import android.database.sqlite.SQLiteOpenHelper;
import android.widget.ToggleButton;

public class DataBaseHandler {

    SQLiteDatabase database;

    public DataBaseHandler(Context context) {
        ShakhesDatabaseOpenHelper shakhesDatabaseOpenHelper = new ShakhesDatabaseOpenHelper(
                context, "shakhsdb.db", null, 1);
        database = shakhesDatabaseOpenHelper.getWritableDatabase();
    }

    public class ShakhesDatabaseOpenHelper extends SQLiteOpenHelper {

        public ShakhesDatabaseOpenHelper(Context context, String name,
                CursorFactory factory, int version) {
            super(context, name, factory, version);
        }

        @Override
        public void onCreate(SQLiteDatabase db) {
            //db.execSQL("DROP TABLE IF EXISTS "+ "TBL_MAHRIE");
            String query = "create table IF NOT EXISTS TBL_MAHRIE (ID INTEGER PRIMARY KEY, COL_SAL TEXT, COL_NERKH TEXT)";
            db.execSQL(query);
        }

        @Override
        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
            db.execSQL("DROP TABLE IF EXISTS "+ "TBL_MAHRIE");
        }

    }

    public long insertShakhes(Shakhes shakhes) {
        ContentValues values = new ContentValues();
        values.put("COL_SAL", shakhes.getSal());
        values.put("COL_NERKH", shakhes.getNerkh());
        return database.insert("TBL_MAHRIE", null, values);
    }

    boolean isTableExists(SQLiteDatabase db, String tableName) {
        if (tableName == null || db == null || !db.isOpen()) {
            return false;
        }
        Cursor cursor = db
                .rawQuery(
                        "SELECT COUNT(*) FROM sqlite_master WHERE type = ? AND name = ?",
                        new String[] { "table", tableName });
        if (!cursor.moveToFirst()) {
            return false;
        }
        int count = cursor.getInt(0);
        cursor.close();
        return count > 0;
    }


    public List<Shakhes> getAllShakhes() {
        List<Shakhes> shakhess = null;

        Cursor c = database.rawQuery("SELECT * FROM TBL_MAHRIE",null);
        //Cursor c = database.query("TBL_MAHRIE", new String[] { "ID", "COL_SAL",   "COL_NERKH" }, null, null, null, null, null);
        shakhess = new ArrayList<Shakhes>();
        Shakhes p = new Shakhes();
        if (c.moveToFirst()) {          
            do {
                p.setId((int) c.getLong(c.getColumnIndex("ID")));
                p.setSal(c.getString(c.getColumnIndex("COL_SAL")));
                p.setNerkh(c.getString(c.getColumnIndex("COL_NERKH")));

                shakhess.add(p);
            } while (c.moveToNext()); 
            return shakhess;

    } 
        return shakhess;
        }

    }

package ir.dadpardaz.mahrie_dadpardaz;

import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

public class Mahrie_JadvalActivity extends Activity {

ListView personListView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_mahrie__jadval);

    personListView = (ListView) findViewById(R.id.personListView);
    DataBaseHandler databaseAdapter = new DataBaseHandler(this);        


    Shakhes shakhes1 = new Shakhes("2392" , "250");
    databaseAdapter.insertShakhes(shakhes1);

    Shakhes shakhes2 = new Shakhes("2391" , "200");
    databaseAdapter.insertShakhes(shakhes2);

    Shakhes shakhes3 = new Shakhes("2390" , "150");
    databaseAdapter.insertShakhes(shakhes3);

    Shakhes shakhes4 = new Shakhes("2389" , "100");
    databaseAdapter.insertShakhes(shakhes4);

    Shakhes shakhes5 = new Shakhes("2388" , "50");
    databaseAdapter.insertShakhes(shakhes5);

    Shakhes shakhes6 = new Shakhes("2387" , "25");
    databaseAdapter.insertShakhes(shakhes6);                



    List<Shakhes> shakhes = 
    databaseAdapter.getAllShakhes() ;
    ShakhesListViewAdapter shakhesListViewAdapter = new ShakhesListViewAdapter(this, R.layout.mahrie_list_view_item, shakhes);
    personListView.setAdapter(shakhesListViewAdapter);      
}

public class ShakhesListViewAdapter extends ArrayAdapter<Shakhes> {

    List<Shakhes> data;
    Context context;

    public ShakhesListViewAdapter(Context context, int resourceId, List<Shakhes> data) {
        super(context, resourceId, data);
        this.data = data;
        this.context = context;
    }

    @Override
    public View getView(final int position, View item, ViewGroup parent) {
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        item = inflater.inflate(R.layout.mahrie_list_view_item, parent , false);

        TextView familyTextView = (TextView) item.findViewById(R.id.familyTextView);
        familyTextView.setText(data.get(position).getSal()) ;
        //familyTextView.setTypeface(bYekan);

        TextView nameTextView = (TextView) item.findViewById(R.id.nameTextView);
        nameTextView.setText(data.get(position).getNerkh()) ;
        //nameTextView.setTypeface(bYekan);

        Button detailsButton = (Button) item.findViewById(R.id.detailsButton);
        detailsButton.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                //Toast.makeText(context, 
                    //  data.get(position).getSal() + " " + data.get(position).getNerkh(),
                    //  Toast.LENGTH_LONG).show();

                Toast.makeText(context, 
                        data.size()+""  + " and ID is " +  position + "" ,
                        Toast.LENGTH_LONG).show();

            }
        });

        //item.startAnimation(animation);

        return item;
    }       


     } }

package ir.dadpardaz.mahrie_dadpardaz;

public class Shakhes {

    public int id ;
    public static String sal ;
    public static String nerkh ;



    public Shakhes(int id, String sal, String nerkh) {
        super();
        this.id = id;
        this.sal = sal;
        this.nerkh = nerkh;
    }

    public Shakhes(String sal, String nerkh) {
        super();
        this.sal = sal;
        this.nerkh = nerkh;
    }

    public Shakhes() {

    }

    public int getId() {
        return this.id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getSal() {
        return sal;
    }

    public void setSal(String sal) {
        this.sal = sal;
    }

    public String getNerkh() {
        return nerkh;
    }

    public void setNerkh(String nerkh) {
        this.nerkh = nerkh;
    }






}

 public List<Shakhes> getAllShakhes() {
    List<Shakhes> shakhess = null;

    Cursor c = database.rawQuery("SELECT * FROM TBL_MAHRIE",null);
    //Cursor c = database.query("TBL_MAHRIE", new String[] { "ID", "COL_SAL",   "COL_NERKH" }, null, null, null, null, null);
    shakhess = new ArrayList<Shakhes>();

    if (c.moveToFirst()) {          
        do {
Shakhes p = new Shakhes();
            p.setId((int) c.getLong(c.getColumnIndex("ID")));
            p.setSal(c.getString(c.getColumnIndex("COL_SAL")));
            p.setNerkh(c.getString(c.getColumnIndex("COL_NERKH")));

            shakhess.add(p);
        } while (c.moveToNext()); 
        return shakhess;

} 
    return shakhess;
   }