RubotoでActoinBar上にFragmentを使ったTabを作るサンプル

fragment1.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:text="Fragment A"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

</LinearLayout>

fragment2.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/textView2"
        android:text="Fragment B"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

</LinearLayout>

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" android:layout_gravity="center">

    <LinearLayout
        android:id="@+id/fragment_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >
    </LinearLayout>
</LinearLayout>

tab_activity.rb

require 'ruboto/widget'
require 'ruboto/util/toast'

java_import 'android.app.ActionBar'
java_import 'android.app.Fragment'


class TabActivity
  def onCreate(bundle)
    super
    self.setContentView(Ruboto::R::layout::main)

    ab = getActionBar()
    ab.setNavigationMode(ActionBar::NAVIGATION_MODE_TABS)
    ab.addTab(ab.newTab().setText("tab1").setTabListener(TabListener.new(self, Fragment1.new())))
    ab.addTab(ab.newTab().setText("tab2").setTabListener(TabListener.new(self, Fragment2.new())))
  end
end


class TabListener
  # toastを使うため、activityを渡している
  def initialize(activity, fragment)
    @activity = activity
    @fragment = fragment
  end

  def onTabReselected(tab, fragment_transaction)
    @activity.toast "tab reselected"
  end

  def onTabSelected(tab, fragment_transaction)
    fragment_transaction.replace(Ruboto::R::id::fragment_container, @fragment)
  end

  def onTabUnselected(tab, fragment_transaction)
    fragment_transaction.remove(@fragment)
  end
end


class Fragment1 < Fragment
  def onCreateView(inflater, container, bundle)
    return inflater.inflate(Ruboto::R::layout::fragment1, container, false)
  end
end

class Fragment2 < Fragment
  def onCreateView(inflater, container, bundle)
    return inflater.inflate(Ruboto::R::layout::fragment2, container, false)
  end
end