android之无返回结果跳转intent

android之无返回结果跳转intent：

（注意跳转的时候要传像user的对象必须实现Serializable接口）

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:layout_width="wrap_content"
android:layout_height="wrap_content"
android:stretchColumns="1" >
<TableRow
>
<TextView
android:text="输入编号："/>
<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/etPassw"
android:hint="请输入1-10个字符"
android:password="true"/>

</TableRow>
</TableLayout>
<TableLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
<TableRow >
<Button
android:visibility="invisible"
/>
<Button
android:id="@+id/register"
android:text="登陆"
android:drawableLeft="@drawable/login32x32"
android:background="@drawable/btn_bg"/>
<Button
android:visibility="invisible"
/>
<Button
android:id="@+id/exit"
android:drawableLeft="@drawable/exit32x32"
android:background="@drawable/btn_bg"
android:text="退出"/>
<Button
android:visibility="invisible"
/>
</TableRow>
</TableLayout>


</LinearLayout>

登陆页面java程序：

package com.example.day04_01;


import android.support.v7.app.ActionBarActivity;
import android.test.UiThreadTest;
import android.text.TextUtils;
import android.content.Intent;
import android.os.Bundle;
import android.os.SystemClock;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.EditText;


public class LoginActivity extends ActionBarActivity {
private EditText etUser,etPassw;
@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.register).setOnClickListener(new OnClickListener() {

@Override
public void onClick(View view) {
// TODO Auto-generated method stub
String code = etUser.getText().toString();
if(TextUtils.isEmpty(code)){
etUser.setError("编号不能为空");
return;
}
String passw = etPassw.getText().toString();
if(TextUtils.isEmpty(passw)){
etPassw.setError("密码不能为空");
return;
}
Intent intent = new Intent(LoginActivity.this,MainActivity.class);
intent.putExtra("code", code);
intent.putExtra("password", passw);
User user = new User(code,passw);
intent.putExtra("user", user);
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
etUser = (EditText) findViewById(R.id.etUser);
etPassw= (EditText) findViewById(R.id.etPassw);
}



}

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.example.day04_01.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.example.day04_01;


import android.support.v7.app.ActionBarActivity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
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);
setContentView(R.layout.activity_main);
Intent intent = getIntent();
String code = intent.getStringExtra("code");
String passw = intent.getStringExtra("password");
User user = (User) intent.getSerializableExtra("user");
Log.i("main", "注册信息："+user);
Toast.makeText(this,"注册信息："+user, 2000).show();
}



}

效果：