我有这样的活动：
我从 SQLite 加载列表，并使用上下文菜单选择列表：
我选择更新以显示活动。
问题是，当 i=我选择列表并根据数据列表在上下文菜单中选择更新时，如何显示不同的链接或加载活动？
例子：
在备注字段中，我有三组数据：“Serangan Hama”、“Pestisida”和“Bencana Alam”。
我有每个数据的 3 个活动表格。
如果我选择“Bencana Alam”，那么它将显示活动 BencanaAlam.java
如果我选择“Pestisida”，那么它将显示活动 Pestisida.java
这是活动代码：
public class MainListKeliling extends ListActivity {
private LocationManager lm;
String[] remark = { "Bencana Alam", "Serangan Hama", "Pestisida" };
Spinner spinRemark;
private LocationListener locListener;
private TextView latTxt, lonTxt;
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;
public static final int DIALOG_DATE_AWAL = 5;
public static final int DIALOG_DATE_AKHIR = 6;
private DatabaseHelper db=null;
private DatabaseHelper ds=null;
private Cursor constantsCursor=null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.lyt_banner_keliling);
//ds = new DatabaseHelper(getApplicationContext());
//ds.loadAll();
db=new DatabaseHelper(this);
constantsCursor=db
.getReadableDatabase()
.rawQuery("SELECT _ID, alamat, tglb, tipe "+
"FROM keliling ORDER BY _ID",
null);
ListAdapter adapter=new SimpleCursorAdapter(this,
R.layout.lyt_list_keliling, constantsCursor,
new String[] {
DatabaseHelper.ID,
DatabaseHelper.ALAMAT,
DatabaseHelper.TYPE,
DatabaseHelper.TANGGAL_AKHIR
},
new int[] {R.id.id, R.id.alamat, R.id.remark, 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:
intent = new Intent(MainListKeliling.this, UpdateKeliling.class);
startActivityForResult(intent, SHOW_SUB_ACTIVITY_VIEW);
return(true);
}
return(super.onOptionsItemSelected(item));
}
private LocationManager lman;
private LocationListener locaListener;
private TextView latTxtt, lonTxtt;
private EditText tvDisplayDateAwal, tvDisplayDateAkhir;
private DatePicker dpResult;
private int year;
private int month;
private int day;
private void add() {
LayoutInflater inflater=LayoutInflater.from(this);
View addView=inflater.inflate(R.layout.lyt_add_keliling, 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);
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);
}
});
//spinner
// buat spinner manual Petak
Spinner spinRemark = (Spinner) addView.findViewById(R.id.tipe);
ArrayAdapter<String> aa = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item, remark);
aa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinRemark.setAdapter(aa);
spinRemark = (Spinner) addView.findViewById(R.id.tipe);
spinRemark.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View v, int position, long id) {
//Toast.makeText(CPupukApp.this, "Anda Memilih: " + manufaktur[position],Toast.LENGTH_LONG).show();
}
public void onNothingSelected(AdapterView<?> parent) {
}
});
final DialogWrapper wrapper=new DialogWrapper(addView);
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);
lman.removeUpdates(locaListener);
}
})
.setNegativeButton(R.string.cancel,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int whichButton) {
// stop gps
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
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
}
private void loadUser(View view) {
// Creating adapter for spinner
}
private void detail(final long rowId) {
if (rowId>0) {
LayoutInflater inflater=LayoutInflater.from(this);
View addView=inflater.inflate(R.layout.detail_keliling, 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);
TextView remarkTxtDt = (TextView) addView.findViewById(R.id.tipe);
//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 keliling 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);
String remark=cursor.getString(9);
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);
remarkTxtDt.setText(remark);
} 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 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());
values.put(DatabaseHelper.TYPE, wrapper.getRemark());
db.getWritableDatabase().insert("keliling", DatabaseHelper.ALAMAT, values);
constantsCursor.requery();
}
private void processDelete(long rowId) {
String[] args={String.valueOf(rowId)};
db.getWritableDatabase().delete("keliling", "_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;
Spinner remark=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());
}
String getRemark(){
return(getRemarkField().getSelectedItem().toString());
}
//String spinnerMan=((Spinner) remark).getSelectedItem().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);
}
private Spinner getRemarkField() {
if (remark==null) {
remark=(Spinner)base.findViewById(R.id.tipe);
}
return(remark);
}
}
}
怎么做？