MiniTwitterSimulate

来源：互联网发布：淘宝网179俱乐部假酒编辑：程序博客网时间：2024/06/03 15:55

1.运行效果图

2. 训练目标
掌握SharedPreference控件的使用

3.步骤：

1）加入复选框

2）登录按钮事件处理

3）在onCreate方法加入是否记住密码的逻辑判断

4. 开发步骤

1）建立login_botton.xml

<?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:src="@drawable/panda" /><pre name="code" class="java">        android:layout_marginBottom="24dp"

2）建立 login_top.xml

<?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:onClick="to2"        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/autologin"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignBaseline="@+id/cbRememberPass"        android:layout_alignBottom="@+id/cbRememberPass"        android:layout_toRightOf="@+id/cbRememberPass"        android:text="自动登录" /></RelativeLayout>

3）建立welcome.xml

<?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="欢迎使用" /></LinearLayout>

4）

activity_main.xml

<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>

5.java代码

（1）

MainActivity.java

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.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 pass;private CheckBox isRemenber;private CheckBox isLoginSelf;private Button longin;private ProgressDialog mDialog;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.activity_main);name=(EditText) findViewById(R.id.etUsername);pass=(EditText) findViewById(R.id.etPassword);isRemenber=(CheckBox) findViewById(R.id.cbRememberPass);isLoginSelf=(CheckBox) findViewById(R.id.autologin);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));pass.setText(sharedPreferences.getString("pass",null));isRemenber.setChecked(true);}if(sharedPreferences.getBoolean("islgs",false)==true){isLoginSelf.setChecked(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();}}isRemenber.setOnCheckedChangeListener(new OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {// TODO Auto-generated method stubif(isRemenber.isClickable()==false){isLoginSelf.setChecked(false);}}});isLoginSelf.setOnCheckedChangeListener(new OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {// TODO Auto-generated method stubisRemenber.setChecked(true);}});longin.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubif(!name.getText().toString().equals("") && !pass.getText().toString().equals("")){if(isLoginSelf.isChecked()){sharedPreferences.edit().putBoolean("isrmb",true).putBoolean("islgs",true).putString("name",name.getText().toString()).putString("pass",pass.getText().toString()).commit();}elseif(isRemenber.isChecked()){sharedPreferences.edit().putBoolean("isrmb",true).putBoolean("islgs",false).putString("name",name.getText().toString()).putString("pass",pass.getText().toString()).commit();}else{sharedPreferences.edit().putBoolean("isrmb",false).putBoolean("islgs",false).putString("name",name.getText().toString()).putString("pass",pass.getText().toString()).putString("pass",pass.getText().toString()).commit();}Intent intent=new Intent(MainActivity.this,welcome.class);startActivity(intent);finish();}else{Toast.makeText(getApplicationContext(), "密码或账号不能为空！",Toast.LENGTH_LONG).show();}}});}/**public void to2 (View view){Intent intent=new Intent();intent.setClass(this,welcome.class);startActivity(intent);}**//**public void save (View view){SharedPreferences sharedPreferences=getSharedPreferences("data",MODE_PRIVATE);Editor editor=sharedPreferences.edit();editor.putString("username","user");editor.putString("password","password");editor.commit();}**/private void ceratDialog(){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();}}

（2）

welcom.java

package com.example.minitwittersimulate;import android.app.Activity;import android.os.Bundle;import android.view.Window;public class welcome extends Activity {protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.welcome);}}

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