row.xml and main.xml keep no change as in the exercise "Custom Spinner with icon".
AndroidCustomSpinner.java
package com.exercise.AndroidCustomSpinner;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.Spinner;
import android.widget.TextView;
public class AndroidCustomSpinner extends Activity {
String[] DayOfWeek = {"Sunday", "Monday", "Tuesday",
"Wednesday", "Thursday", "Friday", "Saturday"};
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Spinner mySpinner = (Spinner)findViewById(R.id.spinner);
mySpinner.setAdapter(new MyCustomAdapter(AndroidCustomSpinner.this, R.layout.row, DayOfWeek));
}
public class MyCustomAdapter extends ArrayAdapter<String>{
public MyCustomAdapter(Context context, int textViewResourceId,
String[] objects) {
super(context, textViewResourceId, objects);
// TODO Auto-generated constructor stub
}
@Override
public View getDropDownView(int position, View convertView,
ViewGroup parent) {
// TODO Auto-generated method stub
return getCustomView(position, convertView, parent);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
return getCustomView(position, convertView, parent);
}
public View getCustomView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
//return super.getView(position, convertView, parent);
LayoutInflater inflater=getLayoutInflater();
View row=inflater.inflate(R.layout.row, parent, false);
TextView label=(TextView)row.findViewById(R.id.weekofday);
label.setText(DayOfWeek[position]);
ImageView icon=(ImageView)row.findViewById(R.id.icon);
if (DayOfWeek[position]=="Sunday"){
icon.setImageResource(R.drawable.icon);
}
else{
icon.setImageResource(R.drawable.icongray);
}
return row;
}
}
}
***********It's a programmatic pitfall here:
in getCustomView(), Condition checking of String ("Sunday") should be checked with:
(DayOfWeek[position].equals("Sunday"))
"==" not always work! refer String Comparison: equals()? ==?
***********
Download the files.
* Please see the article "In-correct arrow icon on Spinner with custom ArrayAdapter"!