Android has returned results jump intent

Android has returned results jump intent:

(1, pay attention to jump when you want to pass the object like user must implement the Serializable interface, 2, login Java code setresult (RESULT_OK, intent); Be sure to call the finish () method )

Main Page layout: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.sxt.main.MainActivity" >
<button
Android:layout_width= "Match_parent"
android:layout_height= "Wrap_content"
Android:id= "@+id/btlogin"
android:text= "Landing"/>
<button
Android:layout_width= "Match_parent"
android:layout_height= "Wrap_content"
android:layout_below= "@id/btlogin"
Android:id= "@+id/btregister"
android:text= "Register"/>

</RelativeLayout>
Main Page Layout Java code:

Package com.sxt.main;


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.view.View;
Import Android.view.View.OnClickListener;
Import Android.widget.EditText;
Import Android.widget.Toast;


public class Mainactivity extends Actionbaractivity {
private static final int logincode = 0;
private static final int REGISTER = 10;
@Override
protected void OnCreate (Bundle savedinstancestate) {
Super.oncreate (savedinstancestate);
Setcontentview (R.layout.activity_main);
Setlistener ();
}


private void Setlistener () {
TODO auto-generated Method Stub
Findviewbyid (R.id.btlogin). Setonclicklistener (New Onclicklistener () {

@Override
public void OnClick (view view) {
TODO auto-generated Method Stub
Intent Intent = new Intent (mainactivity.this,loginactivity.class);
Startactivityforresult (Intent, Logincode);
}
});
}


This is the action to jump back to another layout page
@Override
protected void Onactivityresult (int requestcode, int resultcode, Intent data) {
TODO auto-generated Method Stub
Super.onactivityresult (Requestcode, ResultCode, data);
if (RESULTCODE!=RESULT_OK) {
Return
}
Switch (requestcode) {
Case Logincode:
User user = (user) Data.getserializableextra ("User");
LOG.I ("main", "Registration information is:" +user);
Toast.maketext (This, "registration information is:" +user, 50000). Show ();
Break
Case REGISTER:

Break
}
}






}

jump to the login Registration page layout:

Landing Page layout: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" >
<linearlayout
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"
android:orientation= "Horizontal" >
<textview
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"
android:text= "Number"/>

<edittext
Android:layout_width= "Match_parent"
android:layout_height= "Wrap_content"
Android:id= "@+id/etuser"
Android:hint= "Please enter 1-10 characters"
/>

</LinearLayout>
<linearlayout
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"
android:orientation= "Horizontal" >
<textview
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"
android:text= "Password"/>

<edittext
Android:layout_width= "Match_parent"
android:layout_height= "Wrap_content"
Android:id= "@+id/etpassword"
Android:hint= "Please enter 1-10 characters"
Android:password= "true"/>

</LinearLayout>
<linearlayout
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"
android:orientation= "Horizontal" >

<button
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"
android:visibility= "Invisible"
/>
<button
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"
Android:id= "@+id/register"
android:text= "Login"
android:drawableleft= "@drawable/login32x32"
android:background= "@drawable/btn_bg"/>
<button
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"
android:visibility= "Invisible"
/>
<button
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"
Android:id= "@+id/exit"
android:drawableleft= "@drawable/exit32x32"
android:background= "@drawable/BTN_BG"
android:text= "Exit"/>
<button
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"
android:visibility= "Invisible"
/>
</LinearLayout>
</LinearLayout>

Jump to the login registered Java code:

Package com.sxt.main;


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;


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.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 ("Number cannot be empty");
Return
}
String PASSW = Etpassword.gettext (). toString ();
if (Textutils.isempty (PASSW)) {
Etpassword.seterror ("Password cannot be empty");
Return
}
Intent Intent = new Intent (loginactivity.this,mainactivity.class);
Intent.putextra ("User", new User (CODE,PASSW));
Setresult (RESULT_OK, intent);
Finish ();
}
});
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);
Etpassword = (EditText) Findviewbyid (R.id.etpassword);

}
}
entity class User:

Package com.sxt.main;


Import java.io.Serializable;


public class User implements serializable{
Private String Code;
private String password;
Public String GetCode () {
return code;
}
public void Setcode (String code) {
This.code = code;
}
Public String GetPassword () {
return password;
}
public void SetPassword (String password) {
This.password = password;
}
Public User (string code, string password) {
Super ();
This.code = code;
This.password = password;
}
@Override
Public String toString () {
TODO auto-generated Method Stub
Return this.code+ "," +this.password;
}

}

Effect:

First Click Login:

650) this.width=650; "src=" http://img.blog.csdn.net/20141123202713459 "/>

The second step is to fill in the information:

650) this.width=650; "src=" http://img.blog.csdn.net/20141123202758250 "/>

The 3rd step landing successfully returned to the original layout page:

650) this.width=650; "src=" http://img.blog.csdn.net/20141123202811460 "/>

Android has returned results jump intent