Android no return results jump intent

Android no return results jump intent:

(Note that the object to be passed as the user must implement the serializable interface when jumping)

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" >


<tablelayout
Android:layout_width= "Wrap_content"
android:layout_height= "Wrap_content"
android:stretchcolumns= "1" >
<tablerow
>
<textview
android:text= "Enter Number:"/>
<edittext
Android:id= "@+id/etuser"
Android:hint= "Please enter 1-10 characters"/>
</TableRow>
<tablerow >
<textview

android:text= "Password:"/>
<edittext
Android:id= "@+id/etpassw"
Android:hint= "Please enter 1-10 characters"
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= "Login"
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= "Exit"/>
<button
android:visibility= "Invisible"
/>
</TableRow>
</TableLayout>


</LinearLayout>

Landing Page Java program:

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 ("Number cannot be empty");
Return
}
String PASSW = Etpassw.gettext (). toString ();
if (Textutils.isempty (PASSW)) {
Etpassw.seterror ("Password cannot be empty");
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);
}



}

jump 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.example.day04_01. Mainactivity


    <textview
        android:layout_width= "Wrap_ Content "
        android:layout_height=" wrap_content "
        Android: text= "@string/hello_world"/>


</relativelayout>

Jump Java code:

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", "Registration Information:" +user);
Toast.maketext (This, "Registration information:" +user,). Show ();
}



}

Effect:

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Android no return results jump intent