Merge "Updating SupportLeanbackDemo to showcase GuidedStepFragment." into mnc-ub-dev

samples/SupportLeanbackDemos/AndroidManifest.xml

@@ -98,6 +98,16 @@
             android:windowSoftInputMode="adjustResize"
             android:exported="true" />
 
+        <activity android:name="GuidedStepHalfScreenActivity"
+            android:theme="@style/Theme.Example.Leanback.GuidedStep.Half"
+            android:windowSoftInputMode="adjustResize"
+            android:exported="true" />
+
+        <activity android:name="GuidedStepSupportHalfScreenActivity"
+            android:theme="@style/Theme.Example.Leanback.GuidedStep.Half"
+            android:windowSoftInputMode="adjustResize"
+            android:exported="true" />
+
         <activity android:name="DetailsPresenterSelectionActivity"
             android:theme="@style/Theme.Example.Leanback.GuidedStep"
             android:exported="true" />

samples/SupportLeanbackDemos/generatev4.py

@@ -16,6 +16,7 @@
 
 import os
 import sys
+import getopt
 
 def write_java_head(tofile, name):
     tofile.write("/* This file is auto-generated from {}.java.  DO NOT MODIFY. */\n\n".format(name))
@@ -36,6 +37,20 @@ for line in file:
 file.close()
 outfile.close()
 
+file = open('src/com/example/android/leanback/GuidedStepHalfScreenActivity.java', 'r')
+outfile = open('src/com/example/android/leanback/GuidedStepSupportHalfScreenActivity.java', 'w')
+write_java_head(outfile, "GuidedStepHalfScreenActivity")
+for line in file:
+    line = line.replace('android.app.Fragment', 'android.support.v4.app.Fragment')
+    line = line.replace('android.app.Activity', 'android.support.v4.app.FragmentActivity')
+    line = line.replace('GuidedStepFragment', 'GuidedStepSupportFragment')
+    line = line.replace('GuidedStepActivity', 'GuidedStepSupportActivity')
+    line = line.replace('GuidedStepHalfScreenActivity', 'GuidedStepSupportHalfScreenActivity')
+    line = line.replace('extends Activity', 'extends FragmentActivity')
+    outfile.write(line)
+file.close()
+outfile.close()
+
 file = open('src/com/example/android/leanback/BrowseFragment.java', 'r')
 outfile = open('src/com/example/android/leanback/BrowseSupportFragment.java', 'w')
 write_java_head(outfile, "BrowseFragment")
@@ -49,6 +64,7 @@ for line in file:
     line = line.replace('DetailsActivity', 'DetailsSupportActivity')
     line = line.replace('SearchActivity', 'SearchSupportActivity')
     line = line.replace('RowsActivity', 'RowsSupportActivity')
+    line = line.replace('GuidedStepHalfScreenActivity', 'GuidedStepSupportHalfScreenActivity')
     outfile.write(line)
 file.close()
 outfile.close()

samples/SupportLeanbackDemos/res/values/strings.xml

@@ -46,8 +46,10 @@
     <string name="vgrid_support">Vertical Grid(support version)</string>
     <string name="vgrid_support_description">VerticalGridSupportFragment test</string>
     <string name="guidedstep">Guided Step</string>
+    <string name="guidedstephalfscreen">Guided Step Half Screen</string>
     <string name="guidedstep_description">GuidedStepFragment test</string>
     <string name="guidedstepsupport">Guided Step(support version)</string>
+    <string name="guidedstepsupporthalfscreen">Guided Step Half Screen(support version)</string>
     <string name="guidedstepsupport_description">GuidedStepSupportFragment test</string>
     <string name="browseerror">Browse Error</string>
     <string name="browseerror_description">BrowseError test</string>

samples/SupportLeanbackDemos/res/values/themes.xml

@@ -35,4 +35,6 @@
     <style name="Theme.Example.Leanback.GuidedStep.First">
         <item name="guidanceIconStyle">@style/Widget.Example.Leanback.FirstStepGuidanceIconStyle</item>
     </style>
+    <style name="Theme.Example.Leanback.GuidedStep.Half" parent="Theme.Leanback.GuidedStep.Half">
+    </style>
 </resources>

samples/SupportLeanbackDemos/src/com/example/android/leanback/BrowseFragment.java

@@ -16,7 +16,6 @@ package com.example.android.leanback;
 import android.content.Intent;
 import android.os.Bundle;
 import android.os.Handler;
-import android.support.v4.app.ActivityOptionsCompat;
 import android.support.v17.leanback.app.GuidedStepFragment;
 import android.support.v17.leanback.widget.ArrayObjectAdapter;
 import android.support.v17.leanback.widget.HeaderItem;
@@ -28,6 +27,7 @@ import android.support.v17.leanback.widget.OnItemViewSelectedListener;
 import android.support.v17.leanback.widget.Presenter;
 import android.support.v17.leanback.widget.Row;
 import android.support.v17.leanback.widget.RowPresenter;
+import android.support.v4.app.ActivityOptionsCompat;
 import android.util.Log;
 import android.view.View;
 import android.view.ViewGroup;
@@ -111,8 +111,8 @@ public class BrowseFragment extends android.support.v17.leanback.app.BrowseFragm
             listRowAdapter.add(new PhotoItem("This is a test", "Only a test", R.drawable.gallery_photo_2));
             listRowAdapter.add(new PhotoItem("Android TV", "by Google", R.drawable.gallery_photo_3));
             listRowAdapter.add(new PhotoItem("Leanback", R.drawable.gallery_photo_4));
-            listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_5));
+            listRowAdapter.add(new PhotoItem("GuidedStep (Slide left/right)", R.drawable.gallery_photo_5));
-            listRowAdapter.add(new PhotoItem("This is a test", "Open GuidedStepFragment", R.drawable.gallery_photo_6));
+            listRowAdapter.add(new PhotoItem("GuidedStep (Slide bottom up)", "Open GuidedStepFragment", R.drawable.gallery_photo_6));
             listRowAdapter.add(new PhotoItem("Android TV", "open RowsActivity", R.drawable.gallery_photo_7));
             listRowAdapter.add(new PhotoItem("Leanback", "open BrowseActivity", R.drawable.gallery_photo_8));
             HeaderItem header = new HeaderItem(i, "Row " + i);
@@ -130,9 +130,13 @@ public class BrowseFragment extends android.support.v17.leanback.app.BrowseFragm
             Bundle bundle;
             if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_6) {
                 GuidedStepFragment.add(getFragmentManager(),
-                        new GuidedStepActivity.FirstStepFragment(),
+                        new GuidedStepHalfScreenActivity.FirstStepFragment(),
                         R.id.lb_guidedstep_host);
                 return;
+            } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_5) {
+                GuidedStepFragment.add(getFragmentManager(),
+                    new GuidedStepActivity.FirstStepFragment(), R.id.lb_guidedstep_host);
+              return;
             } else if ( ((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_8) {
                 intent = new Intent(getActivity(), BrowseActivity.class);
                 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity())

samples/SupportLeanbackDemos/src/com/example/android/leanback/BrowseSupportFragment.java

@@ -18,7 +18,6 @@ package com.example.android.leanback;
 import android.content.Intent;
 import android.os.Bundle;
 import android.os.Handler;
-import android.support.v4.app.ActivityOptionsCompat;
 import android.support.v17.leanback.app.GuidedStepSupportFragment;
 import android.support.v17.leanback.widget.ArrayObjectAdapter;
 import android.support.v17.leanback.widget.HeaderItem;
@@ -30,6 +29,7 @@ import android.support.v17.leanback.widget.OnItemViewSelectedListener;
 import android.support.v17.leanback.widget.Presenter;
 import android.support.v17.leanback.widget.Row;
 import android.support.v17.leanback.widget.RowPresenter;
+import android.support.v4.app.ActivityOptionsCompat;
 import android.util.Log;
 import android.view.View;
 import android.view.ViewGroup;
@@ -113,8 +113,8 @@ public class BrowseSupportFragment extends android.support.v17.leanback.app.Brow
             listRowAdapter.add(new PhotoItem("This is a test", "Only a test", R.drawable.gallery_photo_2));
             listRowAdapter.add(new PhotoItem("Android TV", "by Google", R.drawable.gallery_photo_3));
             listRowAdapter.add(new PhotoItem("Leanback", R.drawable.gallery_photo_4));
-            listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_5));
+            listRowAdapter.add(new PhotoItem("GuidedStep (Slide left/right)", R.drawable.gallery_photo_5));
-            listRowAdapter.add(new PhotoItem("This is a test", "Open GuidedStepSupportFragment", R.drawable.gallery_photo_6));
+            listRowAdapter.add(new PhotoItem("GuidedStep (Slide bottom up)", "Open GuidedStepSupportFragment", R.drawable.gallery_photo_6));
             listRowAdapter.add(new PhotoItem("Android TV", "open RowsSupportActivity", R.drawable.gallery_photo_7));
             listRowAdapter.add(new PhotoItem("Leanback", "open BrowseSupportActivity", R.drawable.gallery_photo_8));
             HeaderItem header = new HeaderItem(i, "Row " + i);
@@ -132,9 +132,13 @@ public class BrowseSupportFragment extends android.support.v17.leanback.app.Brow
             Bundle bundle;
             if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_6) {
                 GuidedStepSupportFragment.add(getFragmentManager(),
-                        new GuidedStepSupportActivity.FirstStepFragment(),
+                        new GuidedStepSupportHalfScreenActivity.FirstStepFragment(),
                         R.id.lb_guidedstep_host);
                 return;
+            } else if (((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_5) {
+                GuidedStepSupportFragment.add(getFragmentManager(),
+                    new GuidedStepSupportActivity.FirstStepFragment(), R.id.lb_guidedstep_host);
+              return;
             } else if ( ((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_8) {
                 intent = new Intent(getActivity(), BrowseSupportActivity.class);
                 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity())

samples/SupportLeanbackDemos/src/com/example/android/leanback/GuidedStepActivity.java

@@ -24,12 +24,12 @@ import android.content.res.Configuration;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.support.v17.leanback.app.GuidedStepFragment;
-import android.support.v17.leanback.widget.GuidedAction;
-import android.support.v17.leanback.widget.GuidedDatePickerAction;
-import android.support.v17.leanback.widget.GuidedActionsStylist;
 import android.support.v17.leanback.widget.GuidanceStylist;
 import android.support.v17.leanback.widget.GuidanceStylist.Guidance;
+import android.support.v17.leanback.widget.GuidedAction;
+import android.support.v17.leanback.widget.GuidedActionsStylist;
 import android.support.v17.leanback.widget.GuidedActionsStylist.ViewHolder;
+import android.support.v17.leanback.widget.GuidedDatePickerAction;
 import android.text.InputType;
 import android.text.TextUtils;
 import android.util.Log;
@@ -172,6 +172,7 @@ public class GuidedStepActivity extends Activity {
     }
 
     public static class FirstStepFragment extends GuidedStepFragment {
+
         @Override
         public int onProvideTheme() {
             return R.style.Theme_Example_Leanback_GuidedStep_First;
@@ -208,7 +209,6 @@ public class GuidedStepActivity extends Activity {
                 finishGuidedStepFragments();
             }
         }
-
     }
 
     static ArrayList<String> sCards = new ArrayList<String>();

samples/SupportLeanbackDemos/src/com/example/android/leanback/GuidedStepHalfScreenActivity.java

@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.leanback;
+
+import android.app.Activity;
+import android.app.FragmentManager;
+import android.content.Context;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.support.v17.leanback.app.GuidedStepFragment;
+import android.support.v17.leanback.widget.GuidanceStylist;
+import android.support.v17.leanback.widget.GuidanceStylist.Guidance;
+import android.support.v17.leanback.widget.GuidedAction;
+import android.util.Log;
+
+import java.util.List;
+
+/**
+ * Activity that showcases different aspects of GuidedStepFragments in half
+ * screen mode. This is achieved by setting the theme for this activity
+ * to {@code Theme.Example.Leanback.GuidedStep.Half}.
+ */
+public class GuidedStepHalfScreenActivity extends Activity {
+    private static final String TAG = "leanback.GuidedStepSupportHalfScreenActivity";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        Log.v(TAG, "onCreate");
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.guided_step_activity);
+        GuidedStepFragment.addAsRoot(this, new FirstStepFragment(), R.id.lb_guidedstep_host);
+    }
+
+    public static class FirstStepFragment extends GuidedStepFragment {
+
+       @Override
+        public Guidance onCreateGuidance(Bundle savedInstanceState) {
+            String title = getString(R.string.guidedstep_first_title);
+            String breadcrumb = getString(R.string.guidedstep_first_breadcrumb);
+            String description = getString(R.string.guidedstep_first_description);
+            Drawable icon = getActivity().getResources().getDrawable(R.drawable.ic_main_icon);
+            return new Guidance(title, description, breadcrumb, icon);
+        }
+
+        @Override
+        public void onCreateActions(List<GuidedAction> actions, Bundle savedInstanceState) {
+            Context context = getActivity();
+            actions.add(new GuidedAction.Builder(context)
+                    .clickAction(GuidedAction.ACTION_ID_CONTINUE)
+                    .description("Just do it")
+                    .build());
+            actions.add(new GuidedAction.Builder(context)
+                    .clickAction(GuidedAction.ACTION_ID_CANCEL)
+                    .description("Never mind")
+                    .build());
+        }
+
+        public FirstStepFragment() {
+            setEntranceTransitionType(GuidedStepFragment.SLIDE_FROM_BOTTOM);
+        }
+
+        /**
+         * This fragment could be used by an activity using theme
+         * {@code Theme.Leanback.GuidedStep.Half} or something else (BrowseActivity).
+         * In order to provide a consistent half screen experience under
+         * both scenarios, we override onProvideTheme method.
+         */
+        @Override
+        public int onProvideTheme() {
+            return R.style.Theme_Example_Leanback_GuidedStep_Half;
+        }
+
+        @Override
+        public void onGuidedActionClicked(GuidedAction action) {
+            FragmentManager fm = getFragmentManager();
+            if (action.getId() == GuidedAction.ACTION_ID_CONTINUE) {
+                GuidedStepFragment.add(fm, new SecondStepFragment(), R.id.lb_guidedstep_host);
+            } else if (action.getId() == GuidedAction.ACTION_ID_CANCEL){
+                finishGuidedStepFragments();
+            }
+        }
+    }
+
+    public static class SecondStepFragment extends GuidedStepFragment {
+
+        @Override
+        public int onProvideTheme() {
+            return R.style.Theme_Example_Leanback_GuidedStep_Half;
+        }
+
+        @Override
+        public Guidance onCreateGuidance(Bundle savedInstanceState) {
+            String title = getString(R.string.guidedstep_second_title);
+            String breadcrumb = getString(R.string.guidedstep_second_breadcrumb);
+            String description = getString(R.string.guidedstep_second_description);
+            Drawable icon = getActivity().getResources().getDrawable(R.drawable.ic_main_icon);
+            return new Guidance(title, description, breadcrumb, icon);
+        }
+
+        @Override
+        public void onCreateActions(List<GuidedAction> actions, Bundle savedInstanceState) {
+            Context context = getActivity();
+            actions.add(new GuidedAction.Builder(context)
+                    .clickAction(GuidedAction.ACTION_ID_FINISH)
+                    .description("Done")
+                    .build());
+            actions.add(new GuidedAction.Builder(context)
+                    .clickAction(GuidedAction.ACTION_ID_CANCEL)
+                    .description("Never mind")
+                    .build());
+        }
+
+        @Override
+        public void onCreateButtonActions(List<GuidedAction> actions, Bundle savedInstanceState) {
+            actions.add(new GuidedAction.Builder(getActivity())
+                    .clickAction(GuidedAction.ACTION_ID_CANCEL)
+                    .description("Cancel")
+                    .build());
+        }
+
+        @Override
+        public void onGuidedActionClicked(GuidedAction action) {
+            FragmentManager fm = getFragmentManager();
+            fm.popBackStack();
+        }
+    }
+}

samples/SupportLeanbackDemos/src/com/example/android/leanback/GuidedStepSupportActivity.java

@@ -26,12 +26,12 @@ import android.content.res.Configuration;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.support.v17.leanback.app.GuidedStepSupportFragment;
-import android.support.v17.leanback.widget.GuidedAction;
-import android.support.v17.leanback.widget.GuidedDatePickerAction;
-import android.support.v17.leanback.widget.GuidedActionsStylist;
 import android.support.v17.leanback.widget.GuidanceStylist;
 import android.support.v17.leanback.widget.GuidanceStylist.Guidance;
+import android.support.v17.leanback.widget.GuidedAction;
+import android.support.v17.leanback.widget.GuidedActionsStylist;
 import android.support.v17.leanback.widget.GuidedActionsStylist.ViewHolder;
+import android.support.v17.leanback.widget.GuidedDatePickerAction;
 import android.text.InputType;
 import android.text.TextUtils;
 import android.util.Log;
@@ -174,6 +174,7 @@ public class GuidedStepSupportActivity extends FragmentActivity {
     }
 
     public static class FirstStepFragment extends GuidedStepSupportFragment {
+
         @Override
         public int onProvideTheme() {
             return R.style.Theme_Example_Leanback_GuidedStep_First;
@@ -210,7 +211,6 @@ public class GuidedStepSupportActivity extends FragmentActivity {
                 finishGuidedStepSupportFragments();
             }
         }
-
     }
 
     static ArrayList<String> sCards = new ArrayList<String>();

samples/SupportLeanbackDemos/src/com/example/android/leanback/GuidedStepSupportHalfScreenActivity.java

@@ -0,0 +1,143 @@
+/* This file is auto-generated from GuidedStepHalfScreenActivity.java.  DO NOT MODIFY. */
+
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.leanback;
+
+import android.support.v4.app.FragmentActivity;
+import android.support.v4.app.FragmentManager;
+import android.content.Context;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.support.v17.leanback.app.GuidedStepSupportFragment;
+import android.support.v17.leanback.widget.GuidanceStylist;
+import android.support.v17.leanback.widget.GuidanceStylist.Guidance;
+import android.support.v17.leanback.widget.GuidedAction;
+import android.util.Log;
+
+import java.util.List;
+
+/**
+ * Activity that showcases different aspects of GuidedStepSupportFragments in half
+ * screen mode. This is achieved by setting the theme for this activity
+ * to {@code Theme.Example.Leanback.GuidedStep.Half}.
+ */
+public class GuidedStepSupportHalfScreenActivity extends FragmentActivity {
+    private static final String TAG = "leanback.GuidedStepSupportHalfScreenActivity";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        Log.v(TAG, "onCreate");
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.guided_step_activity);
+        GuidedStepSupportFragment.addAsRoot(this, new FirstStepFragment(), R.id.lb_guidedstep_host);
+    }
+
+    public static class FirstStepFragment extends GuidedStepSupportFragment {
+
+       @Override
+        public Guidance onCreateGuidance(Bundle savedInstanceState) {
+            String title = getString(R.string.guidedstep_first_title);
+            String breadcrumb = getString(R.string.guidedstep_first_breadcrumb);
+            String description = getString(R.string.guidedstep_first_description);
+            Drawable icon = getActivity().getResources().getDrawable(R.drawable.ic_main_icon);
+            return new Guidance(title, description, breadcrumb, icon);
+        }
+
+        @Override
+        public void onCreateActions(List<GuidedAction> actions, Bundle savedInstanceState) {
+            Context context = getActivity();
+            actions.add(new GuidedAction.Builder(context)
+                    .clickAction(GuidedAction.ACTION_ID_CONTINUE)
+                    .description("Just do it")
+                    .build());
+            actions.add(new GuidedAction.Builder(context)
+                    .clickAction(GuidedAction.ACTION_ID_CANCEL)
+                    .description("Never mind")
+                    .build());
+        }
+
+        public FirstStepFragment() {
+            setEntranceTransitionType(GuidedStepSupportFragment.SLIDE_FROM_BOTTOM);
+        }
+
+        /**
+         * This fragment could be used by an activity using theme
+         * {@code Theme.Leanback.GuidedStep.Half} or something else (BrowseActivity).
+         * In order to provide a consistent half screen experience under
+         * both scenarios, we override onProvideTheme method.
+         */
+        @Override
+        public int onProvideTheme() {
+            return R.style.Theme_Example_Leanback_GuidedStep_Half;
+        }
+
+        @Override
+        public void onGuidedActionClicked(GuidedAction action) {
+            FragmentManager fm = getFragmentManager();
+            if (action.getId() == GuidedAction.ACTION_ID_CONTINUE) {
+                GuidedStepSupportFragment.add(fm, new SecondStepFragment(), R.id.lb_guidedstep_host);
+            } else if (action.getId() == GuidedAction.ACTION_ID_CANCEL){
+                finishGuidedStepSupportFragments();
+            }
+        }
+    }
+
+    public static class SecondStepFragment extends GuidedStepSupportFragment {
+
+        @Override
+        public int onProvideTheme() {
+            return R.style.Theme_Example_Leanback_GuidedStep_Half;
+        }
+
+        @Override
+        public Guidance onCreateGuidance(Bundle savedInstanceState) {
+            String title = getString(R.string.guidedstep_second_title);
+            String breadcrumb = getString(R.string.guidedstep_second_breadcrumb);
+            String description = getString(R.string.guidedstep_second_description);
+            Drawable icon = getActivity().getResources().getDrawable(R.drawable.ic_main_icon);
+            return new Guidance(title, description, breadcrumb, icon);
+        }
+
+        @Override
+        public void onCreateActions(List<GuidedAction> actions, Bundle savedInstanceState) {
+            Context context = getActivity();
+            actions.add(new GuidedAction.Builder(context)
+                    .clickAction(GuidedAction.ACTION_ID_FINISH)
+                    .description("Done")
+                    .build());
+            actions.add(new GuidedAction.Builder(context)
+                    .clickAction(GuidedAction.ACTION_ID_CANCEL)
+                    .description("Never mind")
+                    .build());
+        }
+
+        @Override
+        public void onCreateButtonActions(List<GuidedAction> actions, Bundle savedInstanceState) {
+            actions.add(new GuidedAction.Builder(getActivity())
+                    .clickAction(GuidedAction.ACTION_ID_CANCEL)
+                    .description("Cancel")
+                    .build());
+        }
+
+        @Override
+        public void onGuidedActionClicked(GuidedAction action) {
+            FragmentManager fm = getFragmentManager();
+            fm.popBackStack();
+        }
+    }
+}

samples/SupportLeanbackDemos/src/com/example/android/leanback/MainActivity.java

@@ -20,13 +20,16 @@ import android.app.Activity;
 import android.content.Intent;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
-import android.support.v4.app.ActivityOptionsCompat;
 import android.support.v17.leanback.app.GuidedStepFragment;
-import android.support.v17.leanback.widget.GuidedAction;
 import android.support.v17.leanback.widget.GuidanceStylist.Guidance;
+import android.support.v17.leanback.widget.GuidedAction;
+import android.support.v4.app.ActivityOptionsCompat;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
 
-import java.util.List;
 import java.util.ArrayList;
+import java.util.List;
 
 /**
  * Activity that allows navigation among the demo activities.
@@ -41,10 +44,10 @@ public class MainActivity extends Activity {
 
         mGuidedStepFragment = new StepFragment();
         GuidedStepFragment.addAsRoot(this, mGuidedStepFragment, android.R.id.content);
-
     }
 
     public static class StepFragment extends GuidedStepFragment {
+
         @Override
         public Guidance onCreateGuidance(Bundle savedInstanceState) {
             String title = getString(R.string.main_title);
@@ -83,6 +86,11 @@ public class MainActivity extends Activity {
                     R.string.guidedstep_description);
             addAction(actions, GuidedStepSupportActivity.class, R.string.guidedstepsupport,
                     R.string.guidedstepsupport_description);
+            addAction(actions, GuidedStepHalfScreenActivity.class, R.string.guidedstephalfscreen,
+                    R.string.guidedstep_description);
+            addAction(actions, GuidedStepSupportHalfScreenActivity.class,
+                R.string.guidedstepsupporthalfscreen,
+                R.string.guidedstep_description);
             addAction(actions, BrowseErrorActivity.class, R.string.browseerror,
                     R.string.browseerror_description);
             addAction(actions, BrowseErrorSupportActivity.class, R.string.browseerror_support,