Android之SharedPreferences对参数数据的存取

package com.duantl.preferences;

import android.app.Activity;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {
private EditText nameText = null;
private EditText ageText = null;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
nameText = (EditText) findViewById(R.id.name);
ageText = (EditText) findViewById(R.id.age);
Button button = (Button) this.findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String name = nameText.getText().toString();
String age = ageText.getText().toString();
SharedPreferences preferences = getSharedPreferences("duantl", Context.MODE_WORLD_READABLE);
Editor editor = preferences.edit();
editor.putString("name", name);
editor.putInt("age", new Integer(age));
editor.commit();
Toast.makeText(MainActivity.this, R.string.success, 1).show();
}
});

Button resumebutton = (Button) this.findViewById(R.id.resume);
resumebutton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
SharedPreferences preferences = getSharedPreferences("duantl", Context.MODE_PRIVATE);
String name = preferences.getString("name", "");
int age = preferences.getInt("age", 20);
nameText.setText(name);
ageText.setText(String.valueOf(age));
}
});
}
}