我使用列表视图，当我尝试更新列表视图但不更改时
我把方法放进 updateTggl()去SaveData()，所以当我保存数据时，列表会改变但不起作用
这是我的方法
private void updateTggl()
{
DatabaseHelper dbConnector = new DatabaseHelper(this);
if (getIntent().getExtras() != null)
{
dbConnector.updateTanggal(rowID,tglEt.getText().toString());
}
}
这是代码 updateTanggal 方法
public void updateTanggal(long id, String tglb)
{
ContentValues editTgl = new ContentValues();
editTgl.put("tglb", tglb);
SQLiteDatabase db = this.getWritableDatabase();
db.update("petak_tetap", editTgl, "_id=" + id, null);
db.close();
}
调用列表视图的代码
db = new DatabaseHelper(this);
constantsCursor = db.getReadableDatabase().rawQuery(
"SELECT _ID, alamat, tglb " + "FROM petak_tetap ORDER BY _ID",
null);
ListAdapter adapter = new SimpleCursorAdapter(this, R.layout.row,
constantsCursor, new String[] { DatabaseHelper.ID,
DatabaseHelper.ALAMAT, DatabaseHelper.TANGGAL_AKHIR },
new int[] { R.id.id, R.id.alamat, R.id.tglakhir });
setListAdapter(adapter);
registerForContextMenu(getListView());
这是完整的代码活动
package hariff.ltis.petaktetap;
import hariff.ltis.mainmenu.R;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import android.app.AlertDialog;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.app.ListActivity;
import android.content.ContentValues;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.ListAdapter;
import android.widget.SimpleCursorAdapter;
import android.widget.TextView;
public class MainPetakTetap extends ListActivity {
private int year;
private int month;
private int day;
static final int DATE_DIALOG_ID = 999;
private LocationManager lm;
private LocationListener locListener;
private TextView latTxt, lonTxt;
public static final int DIALOG_DATE_AWAL = 5;
public static final int DIALOG_DATE_AKHIR = 6;
Intent intent = null;
private static final int ADD_ID = Menu.FIRST + 1;
private static final int DELETE_ID = Menu.FIRST + 3;
private static final int UPDATE_ID = Menu.FIRST + 4;
private static final int DETAIL_ID = Menu.FIRST + 5;
private static final int CANCEL = Menu.FIRST + 6;
public static final int SHOW_SUB_ACTIVITY_VIEW = 3;
private DatabaseHelper db = null;
private DatabaseHelper ds = null;
private Cursor constantsCursor = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.banner);
//ds = new DatabaseHelper(getApplicationContext());
//ds.loadAll();
db = new DatabaseHelper(this);
constantsCursor = db.getReadableDatabase().rawQuery(
"SELECT _ID, alamat, tglb " + "FROM petak_tetap ORDER BY _ID",
null);
ListAdapter adapter = new SimpleCursorAdapter(this, R.layout.row,
constantsCursor, new String[] { DatabaseHelper.ID,
DatabaseHelper.ALAMAT, DatabaseHelper.TANGGAL_AKHIR },
new int[] { R.id.id, R.id.alamat, R.id.tglakhir });
setListAdapter(adapter);
registerForContextMenu(getListView());
Button button = (Button) findViewById(R.id.btnKembali);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Perform action on click
LogOut();
setResult(RESULT_OK, null);
finish();
}
});
button = (Button) findViewById(R.id.btnDataBaru);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Perform action on click
add();
}
});
}// onCreate
private void LogOut(){
}//LogOut
@Override
public void onDestroy() {
super.onDestroy();
constantsCursor.close();
db.close();
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenu.ContextMenuInfo menuInfo) {
menu.add(Menu.NONE, DETAIL_ID, Menu.NONE, "Detail");
menu.add(Menu.NONE, UPDATE_ID, Menu.NONE, "Update");
menu.add(Menu.NONE, DELETE_ID, Menu.NONE, "Delete");
menu.add(Menu.NONE, CANCEL, Menu.NONE, "Back")
.setAlphabeticShortcut('d');
}
@Override
public boolean onContextItemSelected(MenuItem item) {
switch (item.getItemId()) {
case DETAIL_ID:
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item
.getMenuInfo();
detail(info.id);
return (true);
case DELETE_ID:
AdapterView.AdapterContextMenuInfo infoDetail = (AdapterView.AdapterContextMenuInfo) item
.getMenuInfo();
delete(infoDetail.id);
return (true);
case UPDATE_ID:
AdapterView.AdapterContextMenuInfo infoCode = (AdapterView.AdapterContextMenuInfo) item
.getMenuInfo();
addCode(infoCode.id);
return (true);
case CANCEL:
}
return (super.onOptionsItemSelected(item));
}
private LocationManager lman;
private LocationListener locaListener;
private TextView latTxtt, lonTxtt;
private EditText tvDisplayDateAwal, tvDisplayDateAkhir;
private DatePicker dpResult;
private void add() {
LayoutInflater inflater = LayoutInflater.from(this);
View addView = inflater.inflate(R.layout.add_edit, null);
latTxtt = (TextView) addView.findViewById(R.id.latitudeTxtt);
lonTxtt = (TextView) addView.findViewById(R.id.longitudeTxtt);
lman = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locaListener = new MyLocationListenerDialog();
lman.requestLocationUpdates(LocationManager.GPS_PROVIDER, 10, 10,
locaListener);
final DialogWrapper wrapper = new DialogWrapper(addView);
tvDisplayDateAwal = (EditText) addView.findViewById(R.id.tglawal);
tvDisplayDateAkhir = (EditText) addView.findViewById(R.id.tglakhir);
dpResult = (DatePicker) addView.findViewById(R.id.dpResult);
dpResult.setVisibility(View.GONE);
final Calendar c = Calendar.getInstance();
year = c.get(Calendar.YEAR);
month = c.get(Calendar.MONTH);
day = c.get(Calendar.DAY_OF_MONTH);
// set current date into textview
tvDisplayDateAkhir.setText(new StringBuilder()
// Month is 0 based, just add 1
.append(day).append("-").append(month + 1).append("-")
.append(year).append(" "));
// set current date into datepicker
dpResult.init(year, month, day, null);
Date date1 = (Date) new Date(dpResult.getYear() - 1900,
dpResult.getMonth(), dpResult.getDayOfMonth());
SimpleDateFormat dates = new SimpleDateFormat("dd-MM-yyyy");
String dateString = dates.format(date1);
tvDisplayDateAkhir.setText(dateString);
View showDlgAwal = addView.findViewById(R.id.tglawal);
showDlgAwal.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Perform action on click
showDialog(DIALOG_DATE_AWAL);
}
});
View showDlgAkhir = addView.findViewById(R.id.tglakhir);
showDlgAkhir.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Perform action on click
showDialog(DIALOG_DATE_AKHIR);
}
});
Dialog dialog = null;
new AlertDialog.Builder(this)
.setTitle(R.string.add_title)
.setView(addView)
.setPositiveButton(R.string.ok,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int whichButton) {
processAdd(wrapper);
// stop gps
lman.removeUpdates(locaListener);
}
})
.setNegativeButton(R.string.cancel,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int whichButton) {
// stop the gps when cancel
lman.removeUpdates(locaListener);
}
}).show();
}// akhir fungsi add
public Dialog onCreateDialog(int id) {
switch (id) {
case (DIALOG_DATE_AWAL):
return new DatePickerDialog(this, datePickerListenerAwal, year,
month, day);
case (DIALOG_DATE_AKHIR):
return new DatePickerDialog(this, datePickerListenerAkhir, year,
month, day);
}
return null;
}// onCreateDialog
// isi dialog awal
private DatePickerDialog.OnDateSetListener datePickerListenerAwal = new DatePickerDialog.OnDateSetListener() {
// when dialog box is closed, below method will be called.
public void onDateSet(DatePicker view, int selectedYear,
int selectedMonth, int selectedDay) {
year = selectedYear;
month = selectedMonth;
day = selectedDay;
// set selected date into textview
tvDisplayDateAwal.setText(new StringBuilder().append(day)
.append("-").append(month + 1).append("-").append(year)
.append(" "));
// set selected date into datepicker also
dpResult.init(year, month, day, null);
Date date1 = (Date) new Date(dpResult.getYear() - 1900,
dpResult.getMonth(), dpResult.getDayOfMonth());
SimpleDateFormat dates = new SimpleDateFormat("dd-MM-yyyy");
String dateString = dates.format(date1);
tvDisplayDateAwal.setText(dateString);
}
};
// isi dialog akhir
private DatePickerDialog.OnDateSetListener datePickerListenerAkhir = new DatePickerDialog.OnDateSetListener() {
// when dialog box is closed, below method will be called.
public void onDateSet(DatePicker view, int selectedYear,
int selectedMonth, int selectedDay) {
year = selectedYear;
month = selectedMonth;
day = selectedDay;
// set selected date into textview
tvDisplayDateAkhir.setText(new StringBuilder().append(day)
.append("-").append(month + 1).append("-").append(year)
.append(" "));
// set selected date into datepicker also
dpResult.init(year, month, day, null);
Date date1 = (Date) new Date(dpResult.getYear() - 1900,
dpResult.getMonth(), dpResult.getDayOfMonth());
SimpleDateFormat dates = new SimpleDateFormat("dd-MM-yyyy");
String dateString = dates.format(date1);
tvDisplayDateAkhir.setText(dateString);
}
};
private class MyLocationListenerDialog implements LocationListener {
@Override
public void onLocationChanged(Location loc) {
// TODO Auto-generated method stub
if (loc != null) {
latTxtt.setText(String.valueOf(loc.getLatitude()));
lonTxtt.setText(String.valueOf(loc.getLongitude()));
}
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}//onProviderDisabled
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}//onProviderEnabled
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}//onStatusChanged
protected void onPause() {
lman.removeUpdates(locaListener);
onPause();
}
private void stopListening() {
if (lman != null) {
lman.removeUpdates(this);
}
}
}
private void detail(final long rowId) {
if (rowId > 0) {
LayoutInflater inflater = LayoutInflater.from(this);
View addView = inflater.inflate(R.layout.detail_tetap, null);
final DialogWrapper wrapper = new DialogWrapper(addView);
TextView idDt = (TextView) addView.findViewById(R.id.idDetail);
TextView codeTxtDt = (TextView) addView
.findViewById(R.id.codeDetail);
TextView alamatTxtDt = (TextView) addView
.findViewById(R.id.alamatDetail);
TextView batasTxtDt = (TextView) addView
.findViewById(R.id.batasDetail);
TextView latTxtDt = (TextView) addView.findViewById(R.id.latDetail);
TextView lonTxtDt = (TextView) addView.findViewById(R.id.lonDetail);
TextView luasTxtDt = (TextView) addView
.findViewById(R.id.luasDetail);
TextView tglAwaltxtDt = (TextView) addView
.findViewById(R.id.tglAwalDetail);
TextView tglAkhirtxtDt = (TextView) addView
.findViewById(R.id.tglAkhirDetail);
// View editTextHidden = (EditText) findViewById(R.id.txtHidden);
// database handler
DatabaseHelper db = new DatabaseHelper(getApplicationContext());
// Spinner Drop down elements
SQLiteDatabase dbs = db.getReadableDatabase();
Cursor cursor = dbs.rawQuery("SELECT * FROM petak_tetap where _ID="
+ rowId + "", null);
if (cursor.moveToFirst()) {
do {
String noId = cursor.getString(0); // Here you can get data
// from table and stored
// in string if it has
// only one string.
String code = cursor.getString(1);
String alamat = cursor.getString(2);
String batas = cursor.getString(3);
String lat = cursor.getString(4);
String lon = cursor.getString(5);
String luas = cursor.getString(6);
String tglAwal = cursor.getString(7);
String tglAkhir = cursor.getString(8);
idDt.setText(noId);
codeTxtDt.setText(code);
alamatTxtDt.setText(alamat);
batasTxtDt.setText(batas);
latTxtDt.setText(lat);
lonTxtDt.setText(lon);
luasTxtDt.setText(luas);
tglAwaltxtDt.setText(tglAwal);
tglAkhirtxtDt.setText(tglAkhir);
} while (cursor.moveToNext());
}
if (cursor != null && !cursor.isClosed()) {
cursor.close();
}
if (db != null) {
db.close();
}
new AlertDialog.Builder(this)
.setTitle(R.string.detail_title)
.setView(addView)
.setPositiveButton(R.string.ok,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int whichButton) {
// ignore, just dismiss
}
}).show();
}
}
private void addCode(final long rowId) {
if (rowId > 0) {
// View editTextHidden = (EditText) findViewById(R.id.txtHidden);
// database handler
DatabaseHelper db = new DatabaseHelper(getApplicationContext());
// Spinner Drop down elements
SQLiteDatabase dbs = db.getReadableDatabase();
Cursor cursor = dbs.rawQuery("SELECT * FROM petak_tetap where _ID="
+ rowId + "", null);
if (cursor.moveToFirst()) {
do {
String noId = cursor.getString(0); // Here you can get data
// from table and stored
// in string if it has
// only one string.
String code = cursor.getString(1);
String alamat = cursor.getString(2);
String batas = cursor.getString(3);
String lat = cursor.getString(4);
String lon = cursor.getString(5);
String luas = cursor.getString(6);
String tglAwal = cursor.getString(7);
String tglAkhir = cursor.getString(8);
Intent intent = new Intent(MainPetakTetap.this, MainUpdate.class);
intent.putExtra("new_variable_name",code);
intent.putExtra("row_id",noId);
intent.putExtra("tanggal_akhir",tglAkhir);
startActivity(intent);
} while (cursor.moveToNext());
}
if (cursor != null && !cursor.isClosed()) {
cursor.close();
}
if (db != null) {
db.close();
}
//Bundle extras = new Bundle();
//intent.putExtras(extras);
}
}
private void delete(final long rowId) {
if (rowId > 0) {
new AlertDialog.Builder(this)
.setTitle(R.string.delete_title)
.setPositiveButton(R.string.ok,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int whichButton) {
processDelete(rowId);
}
})
.setNegativeButton(R.string.cancel,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int whichButton) {
// ignore, just dismiss
}
}).show();
}
}
private void processAdd(DialogWrapper wrapper) {
ContentValues values = new ContentValues(2);
values.put(DatabaseHelper.CODE, wrapper.getCode());
values.put(DatabaseHelper.ALAMAT, wrapper.getAlamat());
values.put(DatabaseHelper.BATAS, wrapper.getBatas());
values.put(DatabaseHelper.LAT, wrapper.getLat());
values.put(DatabaseHelper.LON, wrapper.getLon());
values.put(DatabaseHelper.LUAS, wrapper.getLuas());
values.put(DatabaseHelper.TANGGAL_AWAL, wrapper.getTglA());
values.put(DatabaseHelper.TANGGAL_AKHIR, wrapper.getTglB());
db.getWritableDatabase().insert("petak_tetap", DatabaseHelper.ALAMAT,
values);
constantsCursor.requery();
}
private void processDelete(long rowId) {
String[] args = { String.valueOf(rowId) };
db.getWritableDatabase().delete("petak_tetap", "_ID=?", args);
constantsCursor.requery();
}
class DialogWrapper {
EditText codeField = null;
EditText alamatField = null;
EditText batasField = null;
EditText luasField = null;
EditText tglAField = null;
EditText tglBField = null;
TextView latField = null;
TextView lonField = null;
View base = null;
DialogWrapper(View base) {
this.base = base;
tglBField = (EditText) base.findViewById(R.id.tglakhir);
}
String getCode() {
return (getCodeField().getText().toString());
}
String getAlamat() {
return (getAlamatField().getText().toString());
}
String getBatas() {
return (getBatasField().getText().toString());
}
String getLuas() {
return (getLuasField().getText().toString());
}
String getTglA() {
return (getTglAField().getText().toString());
}
String getTglB() {
return (getTglBField().getText().toString());
}
String getLat() {
return (getLatField().getText().toString());
}
String getLon() {
return (getLonField().getText().toString());
}
private EditText getCodeField() {
if (codeField == null) {
codeField = (EditText) base.findViewById(R.id.code);
}
return (codeField);
}
private EditText getAlamatField() {
if (alamatField == null) {
alamatField = (EditText) base.findViewById(R.id.alamat);
}
return (alamatField);
}
private EditText getBatasField() {
if (batasField == null) {
batasField = (EditText) base.findViewById(R.id.batas);
}
return (batasField);
}
private TextView getLatField() {
if (latField == null) {
latField = (TextView) base.findViewById(R.id.latitudeTxtt);
}
return (latField);
}
private TextView getLonField() {
if (lonField == null) {
lonField = (TextView) base.findViewById(R.id.longitudeTxtt);
}
return (lonField);
}
private EditText getLuasField() {
if (luasField == null) {
luasField = (EditText) base.findViewById(R.id.luas);
}
return (luasField);
}
private EditText getTglAField() {
if (tglAField == null) {
tglAField = (EditText) base.findViewById(R.id.tglawal);
}
return (tglAField);
}
private EditText getTglBField() {
if (tglBField == null) {
tglBField = (EditText) base.findViewById(R.id.tglakhir);
}
return (tglBField);
}
}
}
如何解决？