<?xml version="1.0" encoding="utf-8"?><TableLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_width="match_parent"  android:layout_height="match_parent"  android:stretchColumns="1"  >  <TableRow    android:id="@+id/tableRow1"    android:layout_width="wrap_content"    android:layout_height="wrap_content" >    <TextView      android:layout_width="wrap_content"      android:layout_height="wrap_content"      android:text="Account:" />    <EditText      android:id="@+id/account"      android:layout_width="wrap_content"      android:layout_height="wrap_content"      android:hint="Input your account here"      android:ems="10" >    </EditText>  </TableRow>  <TableRow    android:id="@+id/tableRow2"    android:layout_width="wrap_content"    android:layout_height="wrap_content" >    <TextView      android:layout_width="wrap_content"      android:layout_height="wrap_content"      android:text="Password:"       />    <EditText      android:id="@+id/password"      android:layout_width="wrap_content"      android:layout_height="wrap_content"      android:ems="10"      android:inputType="textPassword"      >    </EditText>  </TableRow>  <TableRow    android:id="@+id/tableRow3"    android:layout_width="wrap_content"    android:layout_height="wrap_content" >    <Button    android:id="@+id/login"    android:layout_span="2"    android:layout_height="wrap_content"    android:text="save data" />  </TableRow>  <TextView    android:layout_width="wrap_content"    android:layout_height="20dp"    android:background="#ff0000"    android:text="我是萬(wàn)惡的分割線"    android:textSize="20sp"    android:gravity="center"    />   <TableRow    android:id="@+id/tableRow4"    android:layout_width="wrap_content"    android:layout_height="wrap_content" >    <TextView      android:layout_width="wrap_content"      android:layout_height="wrap_content"      android:text="Account:" />    <EditText      android:id="@+id/account2"      android:layout_width="wrap_content"      android:layout_height="wrap_content"      android:ems="10" >    </EditText>  </TableRow>  <TableRow    android:id="@+id/tableRow5"    android:layout_width="wrap_content"    android:layout_height="wrap_content" >    <TextView      android:layout_width="wrap_content"      android:layout_height="wrap_content"      android:text="Password:"       />    <EditText      android:id="@+id/password2"      android:layout_width="wrap_content"      android:layout_height="wrap_content"      android:ems="10"      android:inputType="textPassword"      >    </EditText>  </TableRow>  <TableRow    android:id="@+id/tableRow6"    android:layout_width="wrap_content"    android:layout_height="wrap_content" >    <Button    android:id="@+id/login2"    android:layout_span="2"    android:layout_height="wrap_content"    android:text="restore data" />  </TableRow></TableLayout>

package com.example.testsharedpreferences;import android.app.Activity;import android.content.SharedPreferences;import android.os.Bundle;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;/** * Android 持久化技術(shù)-----SharedPreferences存儲(chǔ) * @author yy * */public class MainActivity extends Activity {  private EditText accountEdit;  private EditText passwordEdit;  private Button saveButton;  private Button restoreButton;  private SharedPreferences pref;  private SharedPreferences.Editor editor;  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    //存儲(chǔ)按鈕    saveButton = (Button) findViewById(R.id.login);    //為存儲(chǔ)按鈕添加點(diǎn)擊事件    saveButton.setOnClickListener(new OnClickListener() {      @Override      public void onClick(View arg0) {        //獲取SharedPreferences對(duì)象        //第一個(gè)參數(shù)：文件名，沒(méi)有則新建。第二個(gè)參數(shù)：寫入模式-覆蓋        pref = getSharedPreferences("second", MODE_PRIVATE);        //獲取SharedPreferences.Editor對(duì)象        editor = pref.edit();        //獲取輸入的賬號(hào)內(nèi)容        accountEdit = (EditText) findViewById(R.id.account);        String account = accountEdit.getText().toString();        //獲取輸入的密碼內(nèi)容        passwordEdit = (EditText) findViewById(R.id.password);        String password = passwordEdit.getText().toString();        //存儲(chǔ)用戶名和密碼        editor.putString("account", account);        editor.putString("password", password);        //提交        editor.commit();        Toast.makeText(getApplicationContext(), "保存成功", Toast.LENGTH_SHORT).show();      }    });    //獲取恢復(fù)按鈕對(duì)象    restoreButton = (Button) findViewById(R.id.login2);    //添加事件    restoreButton.setOnClickListener(new OnClickListener() {      @Override      public void onClick(View arg0) {        //獲取SharedPreference對(duì)象        pref = getSharedPreferences("second", MODE_PRIVATE);        //讀取內(nèi)容        String account = pref.getString("account", "this is default value");        String password = pref.getString("password", "this is default value");        //設(shè)置到響應(yīng)位置        EditText editText2 = (EditText)findViewById(R.id.account2);        editText2.setText(account);        EditText passwordText2 = (EditText) findViewById(R.id.password2);        passwordText2.setText(password);        Toast.makeText(getApplicationContext(), "恢復(fù)成功", Toast.LENGTH_SHORT).show();      }    });  }  @Override  public boolean onCreateOptionsMenu(Menu menu) {    // Inflate the menu; this adds items to the action bar if it is present.    getMenuInflater().inflate(R.menu.main, menu);    return true;  }}