android-sharedpreferences(数据的保存和读取)

保存和读取xml文件

 

package cn.itcast.Service;

import java.util.HashMap;
import java.util.Map;

import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;

public class PerencesService {
 private Context context;
 public PerencesService(Context context) {
  this.context = context;
 }
 public void save(String name,int amount)
 {
  SharedPreferences sharedPreferences = context.getSharedPreferences("vince", Context.MODE_PRIVATE);
  Editor edit = sharedPreferences.edit();
  edit.putString("name", name);
  edit.putInt("amount", amount);
  edit.commit();
 }
 public Map<String,String> read(){
  Map<String,String> map = new HashMap<String, String>();
  SharedPreferences sharedPreferences = context.getSharedPreferences("vince", Context.MODE_PRIVATE);
  String name = sharedPreferences.getString("name", "");
  int amount = sharedPreferences.getInt("amount", 0);
  map.put("name", name);
  map.put("amount", String.valueOf(amount));
  return map;
 }
}