This is the Array of the two spinners + their declarations in the onCreate am using.
String semester_list [] = {"1","2","3"};
String acad_yr []= {"1","2","3","4","5","6"};
semester = (Spinner)findViewById(R.id.spinner_semester);
year_of_study=(Spinner)findViewById(R.id.spinner_year_of_study);
I have populated the two spinners with that data above, then i sent all the selected items into the URL using this format , the regTester is got from the previous Activity
inn = getIntent();
regTester = inn.getStringExtra("RegNumber");
sem = semester.getSelectedItem().toString();
yr = year_of_study.getSelectedItem().toString();
below is my URL.
final String url = Uri.parse("http://10.0.2.2:84/COOPERP/Mobile/Default.aspx").buildUpon()
.appendQueryParameter("DataFormat", "StudentsResults")
.appendQueryParameter("reg", regTester)
.appendQueryParameter("StYr", yr)
.appendQueryParameter("sem", sem)
.build().toString();
This is my Full method , am using ION library in loading my JSON data below , the data loads but when I try to change both the spinners items, the data doesn't reload. How can I make it reload whenever I change the items in the spinner.
public void Load(){
inn = getIntent();
regTester = inn.getStringExtra("RegNumber");
sem = semester.getSelectedItem().toString();
yr = year_of_study.getSelectedItem().toString();
final String url = Uri.parse("http://10.0.2.2:84/COOPERP/Mobile/Default.aspx").buildUpon()
.appendQueryParameter("DataFormat", "StudentsResults")
.appendQueryParameter("reg", regTester)
.appendQueryParameter("StYr", yr)
.appendQueryParameter("sem", sem)
.build().toString();
//final String url_ ="http://10.0.2.2:84/COOPERP/Mobile/Default.aspx?DataFormat=StudentsResults®="+regTester+"&StYr="+yr+"&sem="+sem;
Toast.makeText(ResultsActivity.this,""+ url,Toast.LENGTH_LONG).show();
final ProgressDialog pd;
pd = new ProgressDialog(ResultsActivity.this);
pd.setMessage("Loading....");
pd.setCancelable(false);
pd.show();
Ion.with(getBaseContext())
.load(url)
.progressDialog(pd)
.as(new TypeToken<List<StudentsResults>>() {
})
.setCallback(new FutureCallback<List<StudentsResults>>() {
@Override
public void onCompleted(Exception e, List<StudentsResults> itemList) {
final StudentsResultsAdapter adapter = new StudentsResultsAdapter(itemList, getApplicationContext());
if (itemList != null) {
String Gradept = itemList.get(0).getGradept().toString();
String Gpa = itemList.get(0).getGpa().toString();
gpa.setText(Gpa);
gradept.setText(Gradept);
rv.setAdapter(adapter);
rv.hasFixedSize();
rv.setLayoutManager(new LinearLayoutManager(getBaseContext()));
// rv.setLayoutManager(new LinearLayoutManager(getBaseContext()));
} else {
rv.setLayoutManager(new LinearLayoutManager(getBaseContext()));
Toast.makeText(getApplicationContext(), "No Results found!", Toast.LENGTH_SHORT).show();
}
pd.dismiss();
}
});
}
Try editing your Load(), to below;
public void Load(String RegNumber, String Semester , String Year){
final String url = Uri.parse("http://10.0.2.2:84/COOPERP/Mobile/Default.aspx").buildUpon()
.appendQueryParameter("DataFormat", "StudentsResults")
.appendQueryParameter("reg", RegNumber)
.appendQueryParameter("StYr", Year)
.appendQueryParameter("sem", Semester)
.build().toString();
final ProgressDialog pd;
pd = new ProgressDialog(ResultsActivity.this);
pd.setMessage("Loading....");
pd.setCancelable(false);
pd.show();
Ion.with(getBaseContext())
.load(url)
.progressDialog(pd)
.as(new TypeToken<List<StudentsResults>>() {
})
.setCallback(new FutureCallback<List<StudentsResults>>() {
@Override
public void onCompleted(Exception e, List<StudentsResults> itemList) {
final StudentsResultsAdapter adapter = new StudentsResultsAdapter(itemList, getApplicationContext());
try {
if (itemList != null) {
String Gradept = itemList.get(0).getGradept().toString();
String Gpa = itemList.get(0).getGpa().toString();
gpa.setText(Gpa);
gradept.setText(Gradept);
rv.setAdapter(adapter);
rv.hasFixedSize();
rv.setLayoutManager(new LinearLayoutManager(getBaseContext()));
} else {
gpa.setText(null);
gradept.setText(null);
rv.setAdapter(null);
rv.setLayoutManager(new LinearLayoutManager(getBaseContext()));
Toast.makeText(getApplicationContext(), "No Results found!", Toast.LENGTH_SHORT).show();
}
pd.dismiss();
}
catch (Exception ex){
Toast.makeText(getApplicationContext(), "No Results found!", Toast.LENGTH_SHORT).show();
pd.dismiss();
}
}
});
}
Then go in the onStart() or onCreate and do the following;
@Override
protected void onStart() {
//GetStudentResults();
semester.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
switch (position) {
case 0:
inn = getIntent();
regTester = inn.getStringExtra("RegNumber");
sem = semester.getSelectedItem().toString();
yr = year_of_study.getSelectedItem().toString();
Load(regTester, sem, yr);
break;
case 1:
inn = getIntent();
regTester = inn.getStringExtra("RegNumber");
sem = semester.getSelectedItem().toString();
yr = year_of_study.getSelectedItem().toString();
Load(regTester, sem, yr);
break;
case 2:
inn = getIntent();
regTester = inn.getStringExtra("RegNumber");
sem = semester.getSelectedItem().toString();
yr = year_of_study.getSelectedItem().toString();
Load(regTester, sem, yr);
break;
}
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
year_of_study.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
switch (position) {
case 0:
inn = getIntent();
regTester = inn.getStringExtra("RegNumber");
sem = semester.getSelectedItem().toString();
yr = year_of_study.getSelectedItem().toString();
Load(regTester, sem, yr);
break;
case 1:
inn = getIntent();
regTester = inn.getStringExtra("RegNumber");
sem = semester.getSelectedItem().toString();
yr = year_of_study.getSelectedItem().toString();
Load(regTester, sem, yr);
break;
case 2:
inn = getIntent();
regTester = inn.getStringExtra("RegNumber");
sem = semester.getSelectedItem().toString();
yr = year_of_study.getSelectedItem().toString();
Load(regTester, sem, yr);
break;
case 3:
inn = getIntent();
regTester = inn.getStringExtra("RegNumber");
sem = semester.getSelectedItem().toString();
yr = year_of_study.getSelectedItem().toString();
Load(regTester, sem, yr);
break;
case 4:
inn = getIntent();
regTester = inn.getStringExtra("RegNumber");
sem = semester.getSelectedItem().toString();
yr = year_of_study.getSelectedItem().toString();
Load(regTester, sem, yr);
break;
case 5:
inn = getIntent();
regTester = inn.getStringExtra("RegNumber");
sem = semester.getSelectedItem().toString();
yr = year_of_study.getSelectedItem().toString();
Load(regTester, sem, yr);
break;
}
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
//load2();
super.onStart();
}