I have a json array like below and want to select corresponding id when an option is selected from spinner which is also dynamic i.e. also a json array which is displayed in Spinner
{
"DoctorName": ["0001 DR. Sameer", "0001 DR.Krishna murti", "110 Mr. Ram", "4 Mr. Yash Pathak.", "99 Dr. Varma"],
"DoctorId": [3,2,110,4,99]
};
and I have to do it into Android. Any help will be appreciated.
1.First Create a class
public class DoctorName
{
public String id = "";
public String name = "";
public void setId(String id)
{
this.id = id;
}
public void setName(String name)
{
this.name = name;
}
public String getName()
{
return name;
}
public String getId()
{
return id;
}
// A simple constructor for populating our member variables for this tutorial.
public DoctorName( String _id, String _name)
{
id = _id;
name = _name;
}
// The toString method is extremely important to making this class work with a Spinner
// (or ListView) object because this is the method called when it is trying to represent
// this object within the control. If you do not have a toString() method, you WILL
// get an exception.
public String toString()
{
return( name );
}
}
2.create another class MainClass.java
ArrayList<DoctorName> doctList = new ArrayList<DoctorName>() ;
for(int i=0;i<arr_name.length;i++)
{
doctList.add(new DoctorName(arr_id[i],arr_name[i]));
}
//fill data in spinner
//ArrayAdapter<DoctorName> adapter = new ArrayAdapter<DoctorName>(getApplicationContext(), android.R.layout.simple_spinner_dropdown_item, answers);
ArrayAdapter <DoctorName>adapter= new ArrayAdapter<DoctorName>
(getApplicationContext(), android.R.layout.simple_spinner_dropdown_item,doctList );
Doctor_selection.setAdapter(adapter);
Doctor_selection.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener()
{
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id)
{
DoctorName doctorName = (DoctorName) parent.getSelectedItem();
Log.i("SliderDemo", "getSelectedItemId" +doctorName.getId());
}
@Override
public void onNothingSelected(AdapterView<?> parent)
{
}
});
You have to use ArrayAdapter to show the json array values into spinner
Spinner spinner = new Spinner(this);
ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, list_values); //selected item will look like a spinner set from XML
spinnerArrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(spinnerArrayAdapter);
//Set on item select Listener
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
// here you can get your selected id
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
For more check here.
Create dynamic HashMap using above arrays, put all the values in key - value form by using for loop. But for this the length of both above arrays should be same.
HashMap<String, String> hash;
for(int i = 0; i < DoctorName.size() ; i++) {
hash = new HashMap<String, String>();
hash.put(DoctorId.get(i), DoctorName.get(i));
}
For spinner send only doctor name list from Map (hash), and onclick of spinner gets its Id that is doctorId. Write below code in Spinner onclick
String name = spinner.getSelectedItem().toString();
String id = hash.get(name);
In id you will get the corresponding id of selected name.
Hope It helps :)