root/trunk/23.PreferenceTest/src/soo/data/preferencetest/PreferenceTest.java

package soo.data.preferencetest;

import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;

public class PreferenceTest extends Activity {
    /** Called when the activity is first created. */
        
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        Button b = (Button)findViewById(R.id.button01);
        b.setOnClickListener(new OnClickListener() {
                        
                        @Override
                        public void onClick(View v) {
                                // TODO Auto-generated method stub
                                Intent i = new Intent(PreferenceTest.this,SubActivity.class);
                                startActivity(i);
                        }
                });
        init();
    }
    
    

        private SharedPreferences sp;
    private EditText et;
    private CheckBox cb1,cb2;
    
    private void init() {
                // TODO Auto-generated method stub
        sp = getSharedPreferences("sp", Activity.MODE_PRIVATE);//�쎄� �곌�媛����.
        et = (EditText)findViewById(R.id.editText01);
        cb1 = (CheckBox)findViewById(R.id.checkBox01);
        cb2 = (CheckBox)findViewById(R.id.checkBox02);
        }
    
    @Override
    public void onStop(){ //��㈃ ��� : ��㈃���щ�吏���//preference��������.(shared preference)
        super.onStop();
        
        //1. ��㈃ ���媛�������
        SharedPreferences.Editor editor = sp.edit(); 
        
        String value1=et.getText().toString();
        boolean value2=cb1.isChecked();
        boolean value3=cb2.isChecked();
        
        editor.putString("et_key", value1);
        editor.putBoolean("cb1_key", value2);
        editor.putBoolean("cb2_key", value3);
        
        editor.commit();
    }
    
    @Override
    public void onStart(){ //��㈃��낫瑜�遺����� ���
        super.onStart();
        
        //2. �����媛����遺���ㅺ린..
        String value1 = sp.getString("et_key","");
        boolean value2 = sp.getBoolean("cb1_key", false);
        boolean value3 = sp.getBoolean("cb2_key", false);
        
        et.setText(value1);
        cb1.setChecked(value2);
        cb2.setChecked(value3);
    }
}