Android记住password后自己主动登录

/**

 * 

 * @author alex

 * @version 2014-7-31下午5:25:45

 *

 */

public class LoginActivity extends Activity {

private EditText name;

private EditText pass;

private CheckBox isRemenber;

private CheckBox isLoginSelf;

private Button longin;

private ProgressDialog mDialog;

    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        name=(EditText)findViewById(R.id.et_name);

        pass=(EditText)findViewById(R.id.et_pass);

        isRemenber=(CheckBox)findViewById(R.id.isremenber);

        isLoginSelf=(CheckBox)findViewById(R.id.isloginself);

        longin=(Button)findViewById(R.id.longin);

        

        final SharedPreferences pre=getSharedPreferences("longinvalue", MODE_WORLD_WRITEABLE);

        if(pre!=null){

        //记住了password

           if(pre.getBoolean("isrmb", false)==true){

          name.setText(pre.getString("name", null));

          pass.setText(pre.getString("pass", null));

          isRemenber.setChecked(true) ;

           }

           if(pre.getBoolean("islgs", false)==true){

          isLoginSelf.setChecked(true);

          creatDialog();

          new Thread(){

          public void run() {

          try {





Thread.sleep(3000);

       if(mDialog.isShowing()){

     mDialog.dismiss();

     }

Intent intent2=new Intent(LoginActivity.this,Show.class);

startActivity(intent2);

} catch (Exception e) {

// TODO: handle exception

}

          }

          }.start();

           }

        }

        isRemenber.setOnCheckedChangeListener( new OnCheckedChangeListener() {



@Override

public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

// TODO Auto-generated method stub

     if(isRemenber.isChecked()==false){

     isLoginSelf.setChecked(false);

     }

}

});

        isLoginSelf.setOnCheckedChangeListener(new OnCheckedChangeListener() {



@Override

public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

// TODO Auto-generated method stub

 isRemenber.setChecked(true);

}

});

        longin.setOnClickListener(new OnClickListener() {



@Override

public void onClick(View v) {

// TODO Auto-generated method stub

if(!name.getText().toString().equals("")&&!pass.getText().toString().equals("")){

if(isLoginSelf.isChecked()){

pre.edit().putBoolean("isrmb", true).putBoolean("islgs", true).putString("name", name.getText().toString())

.putString("pass", pass.getText().toString()).commit();

}else{

if(isRemenber.isChecked()){

pre.edit().putBoolean("isrmb", true).putBoolean("islgs", false).putString("name", name.getText().toString())

.putString("pass", pass.getText().toString()).commit();

}else{

pre.edit().putBoolean("isrmb", false).putBoolean("islgs", false).putString("name", name.getText().toString())

.putString("pass", pass.getText().toString()).commit();

}

}

Intent intent=new Intent(LoginActivity.this,Show.class);

startActivity(intent);

}else{

Toast.makeText(getApplicationContext(), "password或账号不能为空！", Toast.LENGTH_LONG).show();

}





}

});

    }

    private void creatDialog() {

     mDialog=new ProgressDialog(this);

     mDialog.setTitle("验证中");

     mDialog.setMessage("正在登陆请稍后");

     mDialog.setIndeterminate(true);

     mDialog.setCancelable(true);

     mDialog.show();

      

}

}

import android.app.Activity;

import android.os.Bundle;





public class Show extends Activity{

  @Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

setContentView(R.layout.show);

}

}

<?

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

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="alex.sias.com"

    android:versionCode="1"

    android:versionName="1.0" >





    <uses-sdk android:minSdkVersion="8" />





    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" >

    </uses-permission>





    <application

        android:icon="@drawable/icon"

        android:label="@string/app_name"

        android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >

        <activity

            android:name=".LoginActivity"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />





                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <activity android:name="Show" >

        </activity>

    </application>





</manifest>

用到两个布局文件

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

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:background="@drawable/chat_bg_default"

    >

    <TextView 

    android:layout_height="50dp"

    android:layout_width="fill_parent"

    android:gravity="center"

    android:textSize="24sp"

    android:text="登录界面"

    android:textColor="@color/white"

    android:background="@drawable/song_index_item_bg"/>

    <ImageView 

    android:id="@+id/iv"

    android:layout_height="220dp"

    android:layout_width="230dp"

    android:layout_marginTop="110dp"

    android:src="@drawable/background"

    android:layout_centerHorizontal="true"

    android:scaleType="fitXY"/>

    <TextView 

    android:id="@+id/tv_name"

    android:layout_height="wrap_content"

    android:layout_width="wrap_content"

    android:textSize="15sp"

    android:layout_marginTop="7dp"

    android:text="账号："

    android:layout_alignLeft="@+id/iv"

    android:layout_alignTop="@+id/iv"

    android:layout_marginLeft="7dp"

    android:textColor="@color/green"/>

    <EditText 

    android:id="@+id/et_name"

    android:layout_height="25dp"

    android:layout_width="210dp"

    android:layout_marginTop="7dp"

    android:layout_below="@+id/tv_name"

    android:background="@drawable/shape"

    android:layout_alignLeft="@+id/tv_name"/>

    <TextView 

    android:id="@+id/tv_pass"

    android:layout_height="wrap_content"

    android:layout_width="wrap_content"

    android:textSize="15sp"

    android:text="password："

    android:layout_alignLeft="@+id/tv_name"

    android:layout_below="@+id/et_name"

    android:layout_marginTop="7dp"

    android:textColor="@color/green"/>

    <EditText 

    android:id="@+id/et_pass"

    android:layout_height="25dp"

    android:layout_width="210dp"

    android:background="@drawable/shape"

    android:layout_marginTop="7dp"

    android:layout_below="@+id/tv_pass"

    android:layout_alignLeft="@+id/tv_name"/>

    <CheckBox 

    android:id="@+id/isremenber"

    android:layout_height="wrap_content"

    android:layout_width="wrap_content"

    android:layout_alignLeft="@+id/tv_name"

    android:layout_marginTop="10dp"

    android:text="记住password"

    android:textSize="11sp"

    android:textColor="@color/huise"

    android:layout_below="@+id/et_pass"

    android:button="@drawable/mycheckbox"/>

    <CheckBox 

    android:id="@+id/isloginself"

    android:layout_height="wrap_content"

    android:layout_width="wrap_content"

    android:layout_alignRight="@+id/et_name"

    android:layout_marginTop="10dp"

    android:text="自己主动登录"

    android:textSize="11sp"

    android:textColor="@color/huise"

    android:layout_below="@+id/et_pass"

    android:button="@drawable/mycheckbox"/>

    <Button 

    android:id="@+id/longin"

    android:layout_height="25dp" 

    android:layout_width="210dp"

    android:layout_below="@+id/isloginself"

    android:layout_alignLeft="@+id/et_pass"

    android:layout_marginTop="10dp"

    android:text="登录"

    android:gravity="center"

    android:background="@drawable/loginbtn"/>

</RelativeLayout>

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

<LinearLayout

  xmlns:android="http://schemas.android.com/apk/res/android"

  android:orientation="vertical"

  android:layout_width="match_parent"

  android:layout_height="match_parent"

  android:background="@color/white">

  <TextView 

  android:layout_height="fill_parent"

  android:layout_width="fill_parent"

  android:text="嘿嘿!"

  android:textSize="40sp"

  android:gravity="center"/>

    

</LinearLayout>