Android编程之SharedPreferences文件存储操作实例分析

package com.test.sharedpreferences; import android.app.Activity; import android.content.Context; import android.content.SharedPreferences; import android.os.Bundle; import android.widget.TextView; public class test_sharedpreferences extends Activity {  SharedPreferences file;  SharedPreferences.Editor editor;  TextView text;  /** Called when the activity is first created. */  @Override  public void onCreate(Bundle savedInstanceState) {   super.onCreate(savedInstanceState);   setContentView(R.layout.main);   //获得配置文件   file = getSharedPreferences("test_config", 0);   editor = file.edit();   //写入配置：Id:10000 Name:Jdh   editor.putInt("Id", 10000);   editor.putString("Name", "Jdh");   editor.commit();   //读取配置   int id = 0;   id = file.getInt("Id", 0);   String str;   str = file.getString("Name", null);   text = (TextView)findViewById(R.id.textView1);   text.setText("Id:" + id + " Name:" + str);  } }