在 AlertDialog 确认后，我调用 DB 上的方法。此方法删除项目表单列表，现在我想刷新片段，因此删除的项目不再在列表中。
public class My extends Fragment implements Receiver{
View view;
TextView lastSync;
private String inputNum;
private ListView myListView;
static final String KEY_ID = "Id mjerenja";
static final String KEY_BROJILO = "Brojilo";
static final String KEY_ENERGENT = "Energent";
static final String KEY_ADRESA = "Adresa";
static final String KEY_VRIJEME = "Vrijeme";
static final String KEY_STANJE = "Stanje";
ResultReceiverFromIS mReceiver = new ResultReceiverFromIS(new Handler());
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
view = (LinearLayout) inflater.inflate(R.layout.my, container, false);
lastSync = (TextView) view.findViewById(R.id.myLastSync);
mReceiver.setReceiver(this);
DatabaseHandler dbH = new DatabaseHandler(getActivity());
lastSync.setText(dbH.GetLastSync());
List<NewJobs> mesList = dbH.getMyMeasurements();
ArrayList<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>();
for (NewJobs newJobs : mesList) {
HashMap<String, String> map = new HashMap<String, String>();
map.put(KEY_ID, String.valueOf(newJobs.getSifMjerenja()));
map.put(KEY_BROJILO, String.valueOf(newJobs.getSifBrojila()));
map.put(KEY_ADRESA, newJobs.getAdresa()+", "+newJobs.getNazMjesto());
map.put(KEY_ENERGENT, newJobs.getNazEnergent());
map.put(KEY_VRIJEME, newJobs.getDatum());
map.put(KEY_STANJE, String.valueOf(newJobs.getStanje()));
menuItems.add(map);
}
myListView = (ListView) view.findViewById(R.id.myListView);
ListAdapter adapter = new SimpleAdapter(getActivity(), menuItems,
R.layout.my_list_item, new String[] { KEY_ID,KEY_BROJILO, KEY_ENERGENT,
KEY_ADRESA, KEY_VRIJEME, KEY_STANJE}, new int[] { R.id.idmjerenje, R.id.idbrojilo,
R.id.energent, R.id.adresa, R.id.datum, R.id.stanje });
myListView.setAdapter(adapter);
myListView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
final String idmjerenje = ((TextView) view.findViewById(R.id.idmjerenje)).getText().toString();
String idbrojilo = ((TextView) view.findViewById(R.id.idbrojilo)).getText().toString();
String energent = ((TextView) view.findViewById(R.id.energent)).getText().toString();
String adresa = ((TextView) view.findViewById(R.id.adresa)).getText().toString();
String vrijeme = ((TextView) view.findViewById(R.id.datum)).getText().toString();
String stanje = ((TextView) view.findViewById(R.id.stanje)).getText().toString();
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setMessage("Šifra brojila: "+idbrojilo+"\n"+"Energent: "+energent+"\n"+adresa+"\n"+"Datum: "+vrijeme+"\n"+"Uneseno stanje: "+stanje);
builder.setTitle("Unos mjerenja:");
final EditText textEdit = new EditText(getActivity());
textEdit.setId(1);
textEdit.setHint("Novo stanje");
textEdit.setInputType(InputType.TYPE_CLASS_NUMBER);
textEdit.setGravity(Gravity.LEFT);
builder.setView(textEdit);
builder.setIcon(R.drawable.popup);
builder.setPositiveButton("U redu", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
inputNum = textEdit.getText().toString();
if (!inputNum.isEmpty()) {
AlertDialog.Builder builder2 = new AlertDialog.Builder(getActivity());
builder2.setTitle("Unos mjerenja:");
builder2.setIcon(R.drawable.popup);
builder2.setMessage("Novo stanje: "+inputNum+ "\n\n"+"Želite li potvrditi?");
builder2.setPositiveButton("Potvrdi", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
DatabaseHandler dbH = new DatabaseHandler(getActivity());
dbH.updateJob(idmjerenje,inputNum);
}
});
builder2.setNegativeButton("Odustani", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
builder2.create().show();
}
}
});
builder.setNegativeButton("Odustani", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
builder.create().show();
}
});
return view;
}
我试图用谷歌搜索它并在stackoverflow上搜索，但没有运气。
任何人都可以提供帮助或提供建议吗？
谢谢
编辑：
当我添加：
List<NewJobs> mesList = dbH.getMyMeasurements();
ArrayList<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>();
for (NewJobs newJobs : mesList) {
HashMap<String, String> map = new HashMap<String, String>();
map.put(KEY_ID, String.valueOf(newJobs.getSifMjerenja()));
map.put(KEY_BROJILO, String.valueOf(newJobs.getSifBrojila()));
map.put(KEY_ADRESA, newJobs.getAdresa()+", "+newJobs.getNazMjesto());
map.put(KEY_ENERGENT, newJobs.getNazEnergent());
map.put(KEY_VRIJEME, newJobs.getDatum());
map.put(KEY_STANJE, String.valueOf(newJobs.getStanje()));
menuItems.add(map);
}
adapter = new SimpleAdapter(getActivity(), menuItems,
R.layout.my_list_item, new String[] { KEY_ID,KEY_BROJILO, KEY_ENERGENT,
KEY_ADRESA, KEY_VRIJEME, KEY_STANJE}, new int[] { R.id.idmjerenje, R.id.idbrojilo,
R.id.energent, R.id.adresa, R.id.datum, R.id.stanje });
myListView.setAdapter(adapter);
后 ：
DatabaseHandler dbH = new DatabaseHandler(getActivity());
dbH.updateJob(idmjerenje,inputNum);
在第二个 AlertDialog 中，它会正常刷新。
我可以更优雅地做到这一点吗？