在过去的几个小时里，我一直被困在这个问题上（遗憾的是）。
我正在使用SQLite构建一个应用程序，其中应用程序可以执行所有灵活的SQL命令。我目前仍然坚持如何从ID以外的列中搜索查询。
SQLiteDb：
public class SqliteDbTab extends SQLiteOpenHelper
{
public static String DATABASENAME = "androidadvancesqlite";
public static String TABTABLE = "TABTABLE";
public static String ID = "ID";
public static String NAME = "name";
public static String PHONE = "PhOnE";
public static String MAIL = "mail";
public static String ADDRESS = "address";
public static String IMAGE = "image";
private ArrayList<Helperdb> cartList = new ArrayList<Helperdb>();
Context c;
public SqliteDbTab(Context context)
{
super(context, DATABASENAME, null, 33);
c = context;
}
@Override
public void onCreate(SQLiteDatabase db)
{
// TODO Auto-generated method stub
db.execSQL("CREATE TABLE if not exists TABTABLE(ID INTEGER PRIMARY KEY AUTOINCREMENT,"
+ NAME+ " text, "
+ IMAGE + " BLOB , "
+ PHONE + " text , "
+ MAIL + " text , "
+ ADDRESS + " TEXT)");
}
@Override
public void onUpgrade(SQLiteDatabase db, int arg1, int arg2)
{
// TODO Auto-generated method stub
db.execSQL("DROP TABLE IF EXISTS" + TABTABLE);
onCreate(db);
}
public void addContact(Helperdb productitem)
{
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put("NAME", productitem.name);
contentValues.put("PHONE", productitem.phone);
contentValues.put("MAIL", productitem.mail);
contentValues.put("ADDRESS", productitem.address);
contentValues.put("IMAGE", productitem.image);
db.insert(TABTABLE, null, contentValues);
db.close();
}
// update
public void updateContact(Helperdb productList)
{
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put("NAME", productList.name);
contentValues.put("PHONE", productList.phone);
contentValues.put("MAIL", productList.mail);
contentValues.put("ADDRESS", productList.address);
contentValues.put("IMAGE", productList.image);
db.update(TABTABLE, contentValues, "ID="+ productList.id, null);
db.close();
}
public void emptyProduct()
{
try {
SQLiteDatabase db = this.getWritableDatabase();
db.execSQL(TABTABLE);
db.close();
} catch (Exception e)
{
e.printStackTrace();
}
}
public void removeProduct(String id,String name, String phone, String mail,String address,byte[] blob)
{
try {
String[] args = { id };
getWritableDatabase().delete(TABTABLE, "ID=?", args);
} catch (Exception e)
{
e.printStackTrace();
}
}
public ArrayList<Helperdb> getProudcts()
{
cartList.clear();
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery("select * from TABTABLE", null);
if (cursor.getCount() != 0)
{
if (cursor.moveToFirst())
{
do
{
Helperdb item = new Helperdb();
item.id = cursor.getString(cursor.getColumnIndex("ID"));
item.name = cursor.getString(cursor.getColumnIndex("name"));
item.phone = cursor.getString(cursor.getColumnIndex("PhOnE"));
item.mail = cursor.getString(cursor.getColumnIndex("mail"));
item.address = cursor.getString(cursor.getColumnIndex("address"));
item.image = cursor.getBlob(cursor.getColumnIndex("image"));
cartList.add(item);
}
while (cursor.moveToNext());
}
}
cursor.close();
db.close();
return cartList;
}
public ArrayList<Helperdb> getProudcts(String record)
{
cartList.clear();
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor=db.query(true,TABTABLE,new String[]{"ID","name","PhOnE","mail","address","image"},"name"+"=?",new String[]{record},null,null,null,null);
if (cursor.getCount() != 0)
{
if (cursor.moveToFirst())
{
do {
Helperdb item = new Helperdb();
item.id = cursor.getString(cursor.getColumnIndex("ID"));
item.name = cursor.getString(cursor.getColumnIndex("name"));
item.phone = cursor.getString(cursor.getColumnIndex("PhOnE"));
item.mail = cursor.getString(cursor.getColumnIndex("mail"));
item.address = cursor.getString(cursor.getColumnIndex("address"));
item.image = cursor.getBlob(cursor.getColumnIndex("image"));
cartList.add(item);
} while (cursor.moveToNext());
}
}
cursor.close();
db.close();
return cartList;
}
}
java文件：
package com.example.simpletablist;
public class Tab3 extends Activity implements TextWatcher
{
EditText _searchbox;
private ProgressBar showprogress;
searchtask dotask;
private ArrayList<Helperdb> _productList;
ListView _listview;
SqliteDbTab db;
public AutoCompleteTextView myAutoComplete;
private ArrayList<Helperdb> _productList_Temp;
String query = "";
@Override
protected void onCreate(Bundle savedInstanceState)
{
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activitytab3);
_searchbox = (EditText) findViewById(R.id.txtsearchproduct);
showprogress = (ProgressBar) findViewById(R.id.showprogress);
_listview = (ListView) findViewById(R.id.searchlistview);
_searchbox.addTextChangedListener(textwatcher);
}
Runnable runn = new Runnable()
{
@Override
public void run()
{
// TODO Auto-generated method stub
handlersearch.sendEmptyMessage(0);
}
};
TextWatcher textwatcher = new TextWatcher()
{
public void onTextChanged(CharSequence s, int start, int before,int count)
{
Log.i("---onTextChanged ----", "---------onTextChanged ----");
if (_searchbox.getText().toString().length() > 2)
{
query = _searchbox.getText().toString().replace(" ", "%20");
handlersearch.removeCallbacks(runn);
handlersearch.post(runn);
} else
{
showprogress.setVisibility(View.GONE);
if (dotask != null)
{
if (dotask.getStatus().equals(AsyncTask.Status.RUNNING))
{
dotask.cancel(true);
}
}
handlersearch.removeCallbacks(runn);
_productList = new ArrayList<Helperdb>();
_productList.clear();
_listview.setAdapter(new CustomBaseAdapter(Tab3.this,_productList));
}
}
public void beforeTextChanged(CharSequence s, int start, int count,int after)
{
// TODO Auto-generated method stub
}
public void afterTextChanged(Editable s)
{
// TODO Auto-generated method stub
}
};
Handler handlersearch = new Handler()
{
public void handleMessage(android.os.Message msg)
{
dotask = new searchtask();
dotask.execute();
};
};
private class searchtask extends AsyncTask<Void, Void, Void>
{
protected void onPreExecute()
{
showprogress.setVisibility(View.VISIBLE);
};
protected void onPostExecute(Void param)
{
// animation.dismiss();
showprogress.setVisibility(View.GONE);
if (_productList == null)
return;
ArrayList<String> item = new ArrayList<String>();
for (int i = 0; i < _productList.size(); i++)
{
item.add(_productList.get(i).name);
}
myAutoComplete = (AutoCompleteTextView) findViewById(R.id.myautocomplete);
myAutoComplete.addTextChangedListener(Tab3.this);
myAutoComplete.setAdapter(new ArrayAdapter<String>(Tab3.this,android.R.layout.simple_dropdown_item_1line, item));
_productList_Temp = new ArrayList<Helperdb>();
for (int i = 0; i < _productList.size(); i++)
{
_productList_Temp.add(_productList.get(i));
}
_listview.setAdapter(new CustomBaseAdapter(Tab3.this,_productList_Temp));
}
@Override
protected Void doInBackground(Void... params)
{
db = new SqliteDbTab(getApplicationContext());
db.getWritableDatabase();
ArrayList<Helperdb> product_list = db.getProudcts(query);
for (int i = 0; i < product_list.size(); i++)
{
String tidno = product_list.get(i).getid();
System.out.println("tidno>>>>>" + tidno);
String tname = product_list.get(i).getName();
String tphone = product_list.get(i).getPhone();
Helperdb _ProductModel = new Helperdb();
_ProductModel.setid(tidno);
_ProductModel.setName(tname);
_ProductModel.setPhone(tphone);
_productList.add(_ProductModel);
}
// _productList = _parser.getProductList();
return null;
}
}
private class CustomBaseAdapter extends BaseAdapter
{
LayoutInflater _inflater;
List<Helperdb> productList;
public CustomBaseAdapter(Context context, List<Helperdb> productList)
{
_inflater = LayoutInflater.from(context);
this.productList = productList;
}
public int getCount()
{
// TODO Auto-generated method stub
return productList.size();
}
public Object getItem(int position)
{
// TODO Auto-generated method stub
return position;
}
public long getItemId(int position)
{
// TODO Auto-generated method stub
return position;
}
public View getView(int position, View convertView, ViewGroup parent)
{
ViewHolder _holder;
if (convertView == null)
{
convertView = _inflater.inflate(R.layout.contactlist, null);
_holder = new ViewHolder();
_holder.name = (TextView) convertView.findViewById(R.id.txt_title_text);
_holder.phone = (TextView) convertView.findViewById(R.id.txt_price);
convertView.setTag(_holder);
} else
{
_holder = (ViewHolder) convertView.getTag();
}
_holder.name.setText(productList.get(position).name.trim());
_holder.phone.setText(productList.get(position).phone);
return convertView;
}
private class ViewHolder
{
TextView name;
TextView phone;
}
}
@Override
public void afterTextChanged(Editable arg0)
{
// TODO Auto-generated method stub
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,int after)
{
// TODO Auto-generated method stub
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count)
{
// TODO Auto-generated method stub
}
}
logcat文件：
12-13 10:47:50.269: I/---onTextChanged ----(2307): ---------onTextChanged ----
12-13 10:47:50.489: I/---onTextChanged ----(2307): ---------onTextChanged ----
12-13 10:47:50.729: I/---onTextChanged ----(2307): ---------onTextChanged ----
12-13 10:47:51.569: I/---onTextChanged ----(2307): ---------onTextChanged ----
12-13 10:47:51.769: I/---onTextChanged ----(2307): ---------onTextChanged ----
12-13 10:47:51.909: I/---onTextChanged ----(2307): ---------onTextChanged ----
12-13 10:47:52.649: I/---onTextChanged ----(2307): ---------onTextChanged ----
12-13 10:47:53.749: I/---onTextChanged ----(2307): ---------onTextChanged ----
12-13 10:47:53.808: I/---onTextChanged ----(2307): ---------onTextChanged ----
12-13 10:47:55.478: I/---onTextChanged ----(2307): ---------onTextChanged ----
12-13 10:47:55.598: I/System.out(2307): tidno>>>>>5
请帮助我：我正在搜索检索全名。我只是输入了第一封信...
！[搜索用户界面]
答案 0 :(得分：0)
我认为你应该尝试“name”+“='”+ record +“％'” 你可以尝试像这样的查询
String SEARCH_QUERY = "SELECT * FROM TABTABLE WHERE name like '"+record+"%'";
Cursor cursor = db.rawQuery(SEARCH_QUERY, null);
cursor.moveToFirst();
if (cursor.getCount() > 0)
{
do {
Helperdb item = new Helperdb();
item.id = cursor.getString(cursor.getColumnIndex("ID"));
item.name = cursor.getString(cursor.getColumnIndex("name"));
item.phone = cursor.getString(cursor.getColumnIndex("PhOnE"));
item.mail = cursor.getString(cursor.getColumnIndex("mail"));
item.address = cursor.getString(cursor.getColumnIndex("address"));
item.image = cursor.getBlob(cursor.getColumnIndex("image"));
cartList.add(item);
} while (cursor.moveToNext());
}
cursor.close();