android display arraylist items in dialog - android-sqlite

Question

I am having an arraylist fetching name and status of a person. Arraylist is storing the status and name. Its displaying one name at a time. How can I be able to display multiple names at once in alert dialog?
private ArrayList getunfiledRogspDoctorList() {
SqlDataStore sd = new SqlDataStore(this);
sd.open();
String gspQuery = " SELECT * FROM "+ TABLE_DOCTOR + " WHERE " + Queryclass.DOCTOR_ROGSP_STATUS + " == " + 0 + " AND " + Queryclass.DOCTOR_DATE_ID + " = '" + selectionID + "'";
Cursor gspCu = sd.getData(gspQuery);
if(gspCu.moveToFirst()){
do {
rogspname = gspCu.getString(gspCu.getColumnIndex(Queryclass.DOCTOR_CONTACTNAME));
unfiledrogspDoctorList.add(gspCu.getString(gspCu.getColumnIndex(Queryclass.DOCTOR_ROGSP_STATUS)) + rogspname);
}while (gspCu.moveToNext());
}
gspCu.close();
sd.close();
System.out.println("unfiledrogspDoctorList "+unfiledrogspDoctorList);
return unfiledrogspDoctorList;
}

Answer 1

From the code, you are having an ArrayList of your target display String in unfiledrogspDoctorList:
// Suggest to also define the type of your returning ArrayList
private ArrayList<String> getunfiledRogspDoctorList() {
// Define a local ArrayList
ArrayList<String> unfiledrogspDoctorList = new ArrayList<>();
SqlDataStore sd = new SqlDataStore(this);
sd.open();
String gspQuery = " SELECT * FROM "+ TABLE_DOCTOR + " WHERE " + Queryclass.DOCTOR_ROGSP_STATUS + " == " + 0 + " AND " + Queryclass.DOCTOR_DATE_ID + " = '" + selectionID + "'";
Cursor gspCu = sd.getData(gspQuery);
if(gspCu.moveToFirst()){
do {
rogspname = gspCu.getString(gspCu.getColumnIndex(Queryclass.DOCTOR_CONTACTNAME));
unfiledrogspDoctorList.add(gspCu.getString(gspCu.getColumnIndex(Queryclass.DOCTOR_ROGSP_STATUS)) + rogspname);
}while (gspCu.moveToNext());
}
gspCu.close();
sd.close();
System.out.println("unfiledrogspDoctorList "+unfiledrogspDoctorList);
return unfiledrogspDoctorList;
}
You can consider to convert your ArrayList of String into just a String.
private String concat(ArrayList<String> unfiledrogspDoctorList) {
StringBuilder sb = new StringBuilder();
for (String item : unfiledrogspDoctorList) {
sb.append(item);
sb.append(","); // Or change into other separate you would like to display
}
sb.setLength(Math.max(0, sb.length() - 1)); // Remove the appending character
return sb.toString();
}
Then you can make use of an AlertDialog to display that concatenated String.
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder
.setMessage(concat(getunfiledRogspDoctorList()))
.setCancelable(false)
.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// Do anything upon pressing OK button
}
);
AlertDialog alert = builder.create();
alert.show();

Answer 2

You could use :-
SELECT group_concat(name) FROM ....
or to place each on a line you could change the default comma separator to a line feed using
SELECT group_concat(name,'\n') FROM ....
.... representing the rest of the SQL in the question
See https://www.sqlite.org/lang_aggfunc.html#group_concat
note that the GROUP as no GROUP BY clause is provided is a single group (and therefore output row) made up of ALL extracted rows.