Question

我想在android SQlite中开发一个小项目..

我想将员工信息存储到数据库中。字段是姓名，城市，邮件ID和电话号码..

然后我想获取List-view中的数据..它将按员工姓名显示.. 当我点击名称（另一个意图）时，它将显示该名称的所有信息。

我已经创建了数据库帮助程序类，我可以存储信息。但是我无法通过名称检索数据库。任何人都可以帮助我?????

public class DBHelper extends SQLiteOpenHelper {
static final String DATABASE = "contactapp.db";
static final int VERSION = 1;
static final String TABLE = "contact";

static final String C_ID = "_id";
static final String C_ENAME = "ename";
static final String C_city = "city";
static final String C_phno = "ph_no";


public DBHelper(Context context) {
    super(context, DATABASE, null, VERSION);

}


@Override
public void onCreate(SQLiteDatabase db) {


    db.execSQL("CREATE TABLE " + TABLE + " ( " + C_ID
            + " INTEGER PRIMARY KEY AUTOINCREMENT, " + C_ENAME + " text, "
            + C_city + " text, " + C_phno + " integer )");
}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {


    db.execSQL("Drop table " + TABLE);


    onCreate(db);
}

}

以及在sqlite数据库中存储名称，城市和电话号码的management.java ..

public class Management extends Activity {
EditText tname,tcity,tph_no;
Button button1;
DBHelper helper;
SQLiteDatabase db;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.management);
    helper = new DBHelper(this);
    tname = (EditText) findViewById(R.id.tname);
    tcity = (EditText) findViewById(R.id.tcity);
    tph_no = (EditText) findViewById(R.id.tph_no);
    button1=(Button) findViewById(R.id.button1);
    button1.setOnClickListener(new OnClickListener() {


    @Override
    public void onClick(View arg0) {


        Context context = getApplicationContext();
        int s2=Integer.parseInt(tph_no.getText().toString());

            ContentValues values = new ContentValues();
            values.put(DBHelper.C_ENAME, tname.getText().toString());
            values.put(DBHelper.C_city, tcity.getText().toString());
            values.put(DBHelper.C_phno, s2);


            db = helper.getWritableDatabase();
            db.insert(DBHelper.TABLE, null, values);
            db.close();

            Toast.makeText(context, "Employee Added Successfully",
                    Toast.LENGTH_LONG).show();




    }
    });
}

}

现在我想检索/获取名称作为列表..当我点击名称时，它将转到另一个意图，并将显示名称（再次），城市和电话号码..

Answer 1

结帐this link

SimpleCursorAdapter   如果您直接使用数据库，可以使用SimpleCursorAdapter来   定义ListView的数据。

Android listview从sqlite数据库中获取数据

1 个答案: