MiniTwitter登入界面记住密码

1先建立一个activity_main.xml  。代码如下：

<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> 

2：在建立login_botton.xml , login_top.xml

代码如下：

 

<?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"?> 

<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" /> 

 

</RelativeLayout> 

3JAVA代码：

package com.example.minitwittersimulate;

import android.os.Bundle;

import android.app.Activity;

import android.app.ProgressDialog;

import android.content.Intent;

import android.content.SharedPreferences;

import android.content.SharedPreferences.Editor;

import android.text.TextUtils;

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.CompoundButton;

import android.widget.CompoundButton.OnCheckedChangeListener;

import android.widget.EditText;

import android.widget.Toast;

public class MainActivity extends Activity {

 private EditText name;

 private EditText Password;

 private CheckBox isRemember;

 private Button longin;

 private ProgressDialog mDialog;

 @Override

 protected void onCreate(Bundle savedInstanceState) {

  super.onCreate(savedInstanceState);

  requestWindowFeature(Window.FEATURE_NO_TITLE);

  setContentView(R.layout.activity_main);

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

  Password=(EditText) findViewById(R.id.etPassword);

  isRemember=(CheckBox) findViewById(R.id.cbRememberPass);

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

  final SharedPreferences sharedPreferences=getSharedPreferences("data",MODE_PRIVATE);

  if(sharedPreferences!=null)

  {

   if(sharedPreferences.getBoolean("isrmb",false)==true)

   {

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

    Password.setText(sharedPreferences.getString("Password",null));

    isRemember.setChecked(true);

   }

   if(sharedPreferences.getBoolean("islgs",false)==true)

   {

    

    ceratDialog();

    new Thread()

    {

     public void run()

     {

      try{

       Thread.sleep(3000);

       if(mDialog.isShowing())

       {

        mDialog.dismiss();

       }

       Intent intent2=new Intent(MainActivity.this,welcome.class);

       startActivity(intent2);

       //finish();

      }catch(Exception e)

      {

       

      }

     }

    }.start();

   }

  }

  

       isRemember.setOnCheckedChangeListener(new OnCheckedChangeListener() {

    

    @Override

    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

     // TODO Auto-generated method stub

     

     isRemember.setChecked(true);

     

     

    }

   });

   longin.setOnClickListener(new OnClickListener() {

                        @Override

   public void onClick(View v) {

    // TODO Auto-generated method stub

    if(!(TextUtils.isEmpty((CharSequence) name)) && !(TextUtils.isEmpty((CharSequence) Password))){

     if("admin".equals(name)&&"123456".equals(Password)){

      Editor editor=sharedPreferences.edit();

      if(isRemember.isChecked()){

       editor.putString("name", name.getText().toString());

       editor.putString("Password", Password.getText().toString());

 
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      editor.putBoolean("isRemember", true);

      }else{

       editor.clear();

      }

      editor.commit();

      Intent intent=new Intent(MainActivity.this,welcome.class);

      startActivity(intent);

      finish();

     }else{

      Toast.makeText(getApplicationContext(), "密码或账号不为空！", Toast.LENGTH_LONG).show();

     }

    }

    

    

    

   }

   });

  }

 

 private void ceratDialog() {

  // TODO Auto-generated method stub

  

 }

 @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;

 }

 

}