android自动登录界面

<pre name="code" class="java"><img src="https://img-blog.csdn.net/20150604200627353?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvZmVuZ2hhaXlhbl85Mw==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />

1、MainActivity

package com.example.minitwittersimulate;

import android.os.Bundle;
import android.app.Activity;
import android.app.backup.SharedPreferencesBackupHelper;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {
private EditText yhm;
private EditText mima;
private CheckBox jzmm;
private CheckBox zddl;
private Button dl;
private SharedPreferences sharedPreferences = null;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//requestWindowFeature(Window.FEATURE_NO_TITLE);

setContentView(R.layout.activity_main);

yhm = (EditText)findViewById(R.id.etUsername);
mima = (EditText)findViewById(R.id.etPassword);
jzmm = (CheckBox)findViewById(R.id.cbRememberPass);
zddl = (CheckBox) findViewById(R.id.cbZddl);
dl = (Button)findViewById(R.id.btnLogin);

setListener();
}
private void setListener() {
if(zddl.isChecked()){
Intent i = new Intent(MainActivity.this,chenggong.class);
startActivity(i);
}else{
dl.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if("fhy".equals(yhm.getText().toString())&& "123".equals(mima.getText().toString())){
if(jzmm.isChecked()){
sharedPreferences=getSharedPreferences("data",MODE_PRIVATE);
Editor edit = sharedPreferences.edit();
edit.putBoolean("isKeep", true);
edit.putString("yhm",yhm.getText().toString());
edit.putString("mima", mima.getText().toString());
edit.commit();
}else{
SharedPreferences sharedPreferences = getSharedPreferences("data",MODE_PRIVATE);
Editor edit = sharedPreferences.edit();
edit.putBoolean("isKeep", false);
edit.putString("yhm","");
edit.putString("mima","");
edit.commit();
}
Intent i = new Intent(MainActivity.this,chenggong.class);
startActivity(i);
}else{
Toast.makeText(getApplicationContext(),"应户名或密码错误", Toast.LENGTH_SHORT).show();
}
}
});}

}
protected void onResume(){
super.onResume();
getData();
}

private void getData() {
sharedPreferences = getSharedPreferences("data",MODE_PRIVATE);
if(sharedPreferences.getBoolean("isKeep",false)){
yhm.setText(sharedPreferences.getString("yhm",""));
mima.setText(sharedPreferences.getString("mima",""));
}
else{
yhm.setText("");
mima.setText("");
}

}

}

<pre name="code" class="java">2、chenggong.java

package com.example.minitwittersimulate;

import android.app.Activity;
import android.os.Bundle;

public class chenggong extends Activity{
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.chenggong);
}

}

3、login_top.xml

<img src="https://img-blog.csdn.net/20150604200840000?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvZmVuZ2hhaXlhbl85Mw==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />

<?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/btnbg_roundcorner"
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" />

<Button
android:id="@+id/btnLogin"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@+id/etPassword"
android:layout_below="@+id/etPassword"
android:layout_marginTop="20dp"
android:background="#FF72CAE1"
android:text="@string/btnLogin" />

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

<CheckBox
android:id="@+id/cbZddl"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/cbRememberPass"
android:layout_below="@+id/cbRememberPass"
android:text="自动登录" />

</RelativeLayout>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="@drawable/loginbg"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >

<include layout="@layout/login_top"/>
<include layout="@layout/login_bottom"/>"

</LinearLayout>

<?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" >

<TextView
android:id="@+id/tvRegist"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="21dp"
android:layout_marginTop="18dp"
android:text="@string/tvRegister"
android:autoLink="all"
android:textColorLink="#FF0066CC" />

<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_marginBottom="24dp"
android:src="@drawable/panda" />

<ImageView
android:id="@+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="28dp"
android:src="@drawable/icon" />

</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="登陆成功"
android:textAppearance="?android:attr/textAppearanceLarge" />

</LinearLayout>

7、string.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</strin
9050
g>
<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>
</resources>