可记住用户名和密码的登录界面

来源：互联网发布：linux代码学习编辑：程序博客网时间：2024/05/16 19:16

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/14-111223154547-50"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin" >

<TextView
android:id="@+id/tvUsername"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:text="@string/tvName"
android:textAppearance="?android:attr/textAppearanceMedium" />

<EditText
android:id="@+id/etUsername"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/tvUsername"
android:layout_below="@+id/tvUsername"
android:background="@android:drawable/edit_text"
android:ems="10" >

<requestFocus />
</EditText>

<TextView
android:id="@+id/tvPassword"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/etUsername"
android:layout_below="@+id/etUsername"
android:text="@string/tvPassword"
android:textAppearance="?android:attr/textAppearanceMedium" />

<EditText
android:id="@+id/etPassword"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/tvPassword"
android:layout_below="@+id/tvPassword"
android:layout_marginTop="16dp"
android:background="@android:drawable/edit_text"
android:ems="10"
android:inputType="textPassword" />

<CheckBox
android:id="@+id/rem_pw"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/etPassword"
android:layout_below="@+id/etPassword"
android:text="记住密码" />

<CheckBox
android:id="@+id/auto_login"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/rem_pw"
android:layout_alignBottom="@+id/rem_pw"
android:layout_marginLeft="16dp"
android:layout_toRightOf="@+id/rem_pw"
android:text="自动登录" />

<Button
android:id="@+id/btnLogin"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/auto_login"
android:layout_below="@+id/auto_login"
android:layout_marginLeft="50dp"
android:layout_marginTop="20dp"
android:background="#999966"
android:text="@string/btnLogin" />

</RelativeLayout>

LoginActivity.java

package com.example.minitwittersimulate;

import android.os.Bundle;
import android.app.Activity;
import android.content.SharedPreferences;
import android.view.Menu;
import android.view.Window;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.ImageButton;

public class LoginActivity extends Activity {
private EditText userName, password;
private CheckBox rem_pw, auto_login;
private Button btn_login;
private ImageButton btnQuit;
private String userNameValue,passwordValue;
private SharedPreferences sp;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
}

@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;
}

}

Strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>

<string name="app_name">MiniTwitterSimulate</string>
<string name="action_settings">Settings</string>
<string name="hello_world">Hello world!</string>
<string name="tvName">用户名</string>
<string name="tvPassword">密码</string>
<string name="btnLogin">登录</string>
<string name="tvRegister">没有帐号？ <a href="#" mce_href="#">注册</a></string>
<string name="tvText">欢迎登陆本系统。</string>
</resources>

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