本文实例讲述了Android编程之SharedPreferences文件存储操作的方法。分享给大家供大家参考。具体分析如下:
SharedPreferences类提供了一种简单的文件存储功能,像程序的配置文件可以通过它来实现。
源代码:
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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); } } |
效果图如下:
希望本文所述对大家的Android程序设计有所帮助。