android之bundle传递数据--两个activities之间

登陆页面布局：layout/activity_login.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" >

<TableLayout

android:stretchColumns="1"

android:layout_width="wrap_content"

android:layout_height="wrap_content">

<TableRow >

<TextView

android:text="用户名："/>

<EditText

android:id="@+id/etUser"

android:hint="请输入1-10个字符"

/>

</TableRow>

<TableRow >

<TextView

android:text="密码："/>

<EditText

android:id="@+id/etPassword"

android:hint="请输入1-10个字符"

/>

</TableRow>

</TableLayout>

<TableLayout

android:stretchColumns="0,2,4"

android:layout_width="wrap_content"

android:layout_height="wrap_content">

<TableRow >

<Button

android:visibility="invisible"/>

<Button

android:id="@+id/login"

android:text="登陆"

android:drawableLeft="@drawable/login32x32"

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

<Button

android:visibility="invisible"/>

<Button

android:id="@+id/exit"

android:text="退出"

android:drawableLeft="@drawable/exit32x32"

android:background="@drawable/btn_bg"

/>

<Button

android:visibility="invisible"/>

</TableRow>

</TableLayout>

</LinearLayout>

登陆java类：

package com.litsoft.day04;

import com.litsoft.entity.User;

import android.support.v7.app.ActionBarActivity;

import android.text.TextUtils;

import android.content.Intent;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.EditText;

import android.widget.Toast;

public class LoginActivity extends ActionBarActivity {

private EditText etUser,etPassword;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_login);

init();

setListener();

}

private void setListener() {

// TODO Auto-generated method stub

findViewById(R.id.login).setOnClickListener(new OnClickListener() {

@Override

public void onClick(View view) {

// TODO Auto-generated method stub

String userText = etUser.getText().toString();

if(TextUtils.isEmpty(userText)){

etUser.setError("用户名不能为空");

return;

}

String passwordText = etPassword.getText().toString();

if(TextUtils.isEmpty(passwordText)){

etUser.setError("密码不能为空");

return;

}

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

Bundle bundle = new Bundle();

User user = new User(userText,passwordText);

bundle.putSerializable("user", user);

intent.putExtras(bundle);

startActivity(intent);

}

});

findViewById(R.id.exit).setOnClickListener(new OnClickListener() {

@Override

public void onClick(View view) {

// TODO Auto-generated method stub

finish();

}

});

}

private void init() {

// TODO Auto-generated method stub

this.etUser = (EditText) findViewById(R.id.etUser);

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

}

}

跳转页面布局：layout/activity_main.xml

<RelativeLayout 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: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="com.litsoft.day04.MainActivity" >

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/hello_world" />

</RelativeLayout>

跳转java代码：

package com.litsoft.day04;

import com.litsoft.entity.User;

import android.support.v7.app.ActionBarActivity;

import android.content.Intent;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.widget.Toast;

public class MainActivity extends ActionBarActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

Intent intent = getIntent();

Bundle data = intent.getExtras();

User user = (User) data.getSerializable("user");

Toast.makeText(this, "注册信息："+user, 500000).show();

setContentView(R.layout.activity_main);

}

}

User类：

package com.litsoft.entity;

import java.io.Serializable;

public class User implements Serializable{

private String name;

private String password;

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getPassword() {

return password;

}

public void setPassword(String password) {

this.password = password;

}

public User(String name, String password) {

super();

this.name = name;

this.password = password;

}

@Override

public String toString() {

// TODO Auto-generated method stub

return "name:"+this.name+"password:"+this.password;

}

}

菜单列表：AndroidManifest.xml

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

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

package="com.litsoft.day04"

android:versionCode="1"

android:versionName="1.0" >

<uses-sdk

android:minSdkVersion="8"

android:targetSdkVersion="21" />

<application

android:allowBackup="true"

android:icon="@drawable/ic_launcher"

android:label="@string/app_name"

android:theme="@style/AppTheme" >

<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=".MainActivity"

android:label="@string/title_activity_main" >

</activity>

</application>

</manifest>

效果：