package com.wyl.preferencetest;

import android.support.v7.app.ActionBarActivity;

import android.support.v7.app.ActionBar;

import android.support.v4.app.Fragment;

import android.content.SharedPreferences;

import android.content.SharedPreferences.Editor;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.ViewGroup;

import android.widget.Toast;

import android.os.Build;

import android.preference.PreferenceManager;

public class MainActivity extends ActionBarActivity {

	SharedPreferences pref ;

	String username;

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_main);

		//1 获取到preference的两种方式：

//		pref = PreferenceManager.getDefaultSharedPreferences(MainActivity.this);

		pref = getSharedPreferences("myOwn", MODE_PRIVATE);

		//2.使pref可编辑,获得一个可编辑对象

		Editor editor = pref.edit();

		editor.putString("yourname", "wyl");

		editor.putInt("age", 26);

		//3提交编辑，否则不成效的

		editor.commit();

		editor.putBoolean("flag", true);

		editor.putBoolean("flag2", true);

		editor.remove("flag");

		editor.commit();

		String myname = pref.getString("yourname","yourname");

		System.out.println("myname:"+myname);

		MainActivity.this.username = myname;

	}

	public void btnOclick(View v){

		if(R.id.btn01==v.getId()){

			System.out.println("======"+this.username);

//		Toast.makeText(MainActivity.this, username+",你登陆成功了", 1000).show();//一定要加.show()方法

		Toast.makeText(MainActivity.this, "this is the toast content", Toast.LENGTH_LONG).show();//

		}

	}

}