Sharedpreference（参数）保存文件

Activity代码：

package parameterpackage.namespace;

import java.util.jar.Attributes.Name;
import android.R.string;
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 ParameterActivity extends Activity {
    /** Called when the activity is first created. */
    public EditText textname;
    public EditText textage;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button buttonsave =(Button) findViewById(R.id.buttonsave);//保存按钮
        Button buttonrecover =(Button) findViewById(R.id.buttonrecover);//读取按钮
        textname =(EditText) findViewById(R.id.editTextname);
        textage=(EditText)findViewById(R.id.editTextage);
        buttonsave.setOnClickListener(new View.OnClickListener()//保存 
        {        
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                String entername=textname.getText().toString();
            int enterage = Integer.parseInt(textage.getText().toString());
                  // String enterage =textage.getText().toString();
                SharedPreferences preferenes= getSharedPreferences("preferaname", Context.MODE_WORLD_READABLE+MODE_WORLD_WRITEABLE);
                //getSharedPreferences以xml格式存放文件的,括号解释(name 是保存文件时的标题名字，权限模式)
                Editor editor=preferenes.edit();//申请一个编辑对象
                editor.putString("name", entername);//括号解释（“名称/key”，内容）现在的文件还只是放到内存中
                editor.putInt("Age", enterage);
                editor.commit();;//把编辑的内容统一提交到上面的 prename 中
                Toast.makeText(ParameterActivity.this, "succeed", 1).show();
            }
        });
        
        buttonrecover.setOnClickListener(new View.OnClickListener()//读取 
        {
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                //textname =(EditText) findViewById(R.id.editTextname);
                //textage=(EditText)findViewById(R.id.editTextage);
                  SharedPreferences preferences= getSharedPreferences("preferaname",MODE_PRIVATE);
                  String name=preferences.getString("name", "NULL");//括号内解释（“名字/key，默认值”如果可以不存在返回默认值）
                  String age=String.valueOf(preferences.getInt("age", 0));//注意括号内的类型，默认值要求是int
                  textname.setText(name);
                  textage.setText(age);
                Toast.makeText(ParameterActivity.this, "Recoversucceed", 1).show();
            }
        });
    }
}

保存成功后，导出的文件：

<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
<map>
<int name="Age" value="0" />
<string name="name">123</string>
</map>