Move AppNavigation samples around

Move AppNavigation to SupportAppNavigation - this one uses the support
lib navigation helpers.

Add AppNavigation as an implementation of the same sample using the
framework features in JB.

Change-Id: I59e0f2e3e11ccccc277b177aee87bd88da8eb2c6

10 files changed, 598 insertions, 0 deletions

diff --git a/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/ActionBarCompat.java b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/ActionBarCompat.java
new file mode 100644
index 000000000..6f222805c
--- /dev/null
+++ b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/ActionBarCompat.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2012 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.support.appnavigation.app;
+
+import android.app.Activity;
+import android.os.Build;
+
+/**
+ * Very limited shim for enabling the action bar's up button on devices that support it.
+ */
+public class ActionBarCompat {
+    /**
+     * This class will only ever be loaded if the version check succeeds,
+     * keeping the verifier from rejecting the use of framework classes that
+     * don't exist on older platform versions.
+     */
+    static class ActionBarCompatImpl {
+        static void setDisplayHomeAsUpEnabled(Activity activity, boolean enable) {
+            activity.getActionBar().setDisplayHomeAsUpEnabled(enable);
+        }
+    }
+
+    public static void setDisplayHomeAsUpEnabled(Activity activity, boolean enable) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
+            ActionBarCompatImpl.setDisplayHomeAsUpEnabled(activity, enable);
+        }
+    }
+}
diff --git a/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/AppNavHomeActivity.java b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/AppNavHomeActivity.java
new file mode 100644
index 000000000..17f4d5bf3
--- /dev/null
+++ b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/AppNavHomeActivity.java
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2012 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.support.appnavigation.app;
+
+import android.app.ListActivity;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.os.Bundle;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.ListView;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Home activity for app navigation code samples.
+ */
+public class AppNavHomeActivity extends ListActivity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setListAdapter(new SampleAdapter(querySampleActivities()));
+    }
+
+    @Override
+    protected void onListItemClick(ListView lv, View v, int pos, long id) {
+        SampleInfo info = (SampleInfo) getListAdapter().getItem(pos);
+        startActivity(info.intent);
+    }
+
+    protected List<SampleInfo> querySampleActivities() {
+        Intent intent = new Intent(Intent.ACTION_MAIN, null);
+        intent.setPackage(getPackageName());
+        intent.addCategory(Intent.CATEGORY_SAMPLE_CODE);
+
+        PackageManager pm = getPackageManager();
+        List<ResolveInfo> infos = pm.queryIntentActivities(intent, 0);
+
+        ArrayList<SampleInfo> samples = new ArrayList<SampleInfo>();
+
+        final int count = infos.size();
+        for (int i = 0; i < count; i++) {
+            final ResolveInfo info = infos.get(i);
+            final CharSequence labelSeq = info.loadLabel(pm);
+            String label = labelSeq != null ? labelSeq.toString() : info.activityInfo.name;
+
+            Intent target = new Intent();
+            target.setClassName(info.activityInfo.applicationInfo.packageName,
+                    info.activityInfo.name);
+            SampleInfo sample = new SampleInfo(label, target);
+            samples.add(sample);
+        }
+
+        return samples;
+    }
+
+    static class SampleInfo {
+        String name;
+        Intent intent;
+
+        SampleInfo(String name, Intent intent) {
+            this.name = name;
+            this.intent = intent;
+        }
+    }
+
+    class SampleAdapter extends BaseAdapter {
+        private List<SampleInfo> mItems;
+
+        public SampleAdapter(List<SampleInfo> items) {
+            mItems = items;
+        }
+
+        @Override
+        public int getCount() {
+            return mItems.size();
+        }
+
+        @Override
+        public Object getItem(int position) {
+            return mItems.get(position);
+        }
+
+        @Override
+        public long getItemId(int position) {
+            return position;
+        }
+
+        @Override
+        public View getView(int position, View convertView, ViewGroup parent) {
+            if (convertView == null) {
+                convertView = getLayoutInflater().inflate(android.R.layout.simple_list_item_1,
+                        parent, false);
+                convertView.setTag(convertView.findViewById(android.R.id.text1));
+            }
+            TextView tv = (TextView) convertView.getTag();
+            tv.setText(mItems.get(position).name);
+            return convertView;
+        }
+
+    }
+}
diff --git a/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/ContentCategoryActivity.java b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/ContentCategoryActivity.java
new file mode 100644
index 000000000..d93482c71
--- /dev/null
+++ b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/ContentCategoryActivity.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2012 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.support.appnavigation.app;
+
+import com.example.android.support.appnavigation.R;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.NavUtils;
+import android.view.MenuItem;
+import android.view.View;
+
+public class ContentCategoryActivity extends Activity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.content_category);
+
+        ActionBarCompat.setDisplayHomeAsUpEnabled(this, true);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
+            NavUtils.navigateUpFromSameTask(this);
+            return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    public void onViewContent(View v) {
+        Intent target = new Intent(this, ContentViewActivity.class);
+        startActivity(target);
+    }
+}
diff --git a/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/ContentViewActivity.java b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/ContentViewActivity.java
new file mode 100644
index 000000000..42e25ea98
--- /dev/null
+++ b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/ContentViewActivity.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2012 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.support.appnavigation.app;
+
+import com.example.android.support.appnavigation.R;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.NavUtils;
+import android.support.v4.app.ShareCompat;
+import android.support.v4.app.TaskStackBuilder;
+import android.text.TextUtils;
+import android.view.MenuItem;
+import android.widget.TextView;
+
+public class ContentViewActivity extends Activity {
+    public static final String EXTRA_TEXT = "com.example.android.appnavigation.EXTRA_TEXT";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.content_view);
+
+        ActionBarCompat.setDisplayHomeAsUpEnabled(this, true);
+
+        Intent intent = getIntent();
+        if (Intent.ACTION_VIEW.equals(intent.getAction())) {
+            TextView tv = (TextView) findViewById(R.id.status_text);
+            tv.setText("Viewing content from ACTION_VIEW");
+        } else if (intent.hasExtra(EXTRA_TEXT)) {
+            TextView tv = (TextView) findViewById(R.id.status_text);
+            tv.setText(intent.getStringExtra(EXTRA_TEXT));
+        }
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
+            Intent upIntent = NavUtils.getParentActivityIntent(this);
+            if (NavUtils.shouldUpRecreateTask(this, upIntent)) {
+                TaskStackBuilder.from(this)
+                        .addParentStack(this)
+                        .startActivities();
+                finish();
+            } else {
+                NavUtils.navigateUpTo(this, upIntent);
+            }
+            return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+}
diff --git a/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/InterstitialMessageActivity.java b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/InterstitialMessageActivity.java
new file mode 100644
index 000000000..72c356519
--- /dev/null
+++ b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/InterstitialMessageActivity.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2012 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.support.appnavigation.app;
+
+import com.example.android.support.appnavigation.R;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.TaskStackBuilder;
+import android.view.View;
+
+public class InterstitialMessageActivity extends Activity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.interstitial_message);
+    }
+
+    public void onViewContent(View v) {
+        TaskStackBuilder.from(this)
+                .addParentStack(ContentViewActivity.class)
+                .addNextIntent(new Intent(this, ContentViewActivity.class)
+                        .putExtra(ContentViewActivity.EXTRA_TEXT, "From Interstitial Notification"))
+                .startActivities();
+        finish();
+    }
+}
diff --git a/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/NotificationsActivity.java b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/NotificationsActivity.java
new file mode 100644
index 000000000..0f8093823
--- /dev/null
+++ b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/NotificationsActivity.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2012 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.support.appnavigation.app;
+
+import com.example.android.support.appnavigation.R;
+
+import android.app.Activity;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.NavUtils;
+import android.support.v4.app.NotificationCompat;
+import android.support.v4.app.TaskStackBuilder;
+import android.view.MenuItem;
+import android.view.View;
+
+public class NotificationsActivity extends Activity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.notifications);
+
+        ActionBarCompat.setDisplayHomeAsUpEnabled(this, true);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
+            NavUtils.navigateUpFromSameTask(this);
+            return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    public void onPostDirect(View v) {
+        NotificationCompat.Builder builder = new NotificationCompat.Builder(this)
+                .setTicker("Direct Notification")
+                .setSmallIcon(android.R.drawable.stat_notify_chat)
+                .setContentTitle("Direct Notification")
+                .setContentText("This will open the content viewer")
+                .setAutoCancel(true)
+                .setContentIntent(TaskStackBuilder.from(this)
+                        .addParentStack(ContentViewActivity.class)
+                        .addNextIntent(new Intent(this, ContentViewActivity.class)
+                                .putExtra(ContentViewActivity.EXTRA_TEXT, "From Notification"))
+                        .getPendingIntent(0, 0));
+        NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
+        nm.notify("direct_tag", R.id.direct_notification, builder.getNotification());
+    }
+
+    public void onPostInterstitial(View v) {
+        NotificationCompat.Builder builder = new NotificationCompat.Builder(this)
+                .setTicker("Interstitial Notification")
+                .setSmallIcon(android.R.drawable.stat_notify_chat)
+                .setContentTitle("Interstitial Notification")
+                .setContentText("This will show a detail page")
+                .setAutoCancel(true)
+                .setContentIntent(PendingIntent.getActivity(this, 0,
+                        new Intent(this, InterstitialMessageActivity.class)
+                                .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
+                                        Intent.FLAG_ACTIVITY_CLEAR_TASK), 0));
+        NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
+        nm.notify("interstitial_tag", R.id.interstitial_notification, builder.getNotification());
+    }
+}
diff --git a/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/OutsideTaskActivity.java b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/OutsideTaskActivity.java
new file mode 100644
index 000000000..2f75d6bb0
--- /dev/null
+++ b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/OutsideTaskActivity.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2012 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.support.appnavigation.app;
+
+import com.example.android.support.appnavigation.R;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+
+public class OutsideTaskActivity extends Activity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.outside_task);
+    }
+
+    public void onViewContent(View v) {
+        Intent intent = new Intent(Intent.ACTION_VIEW)
+                .setType("application/x-example")
+                .addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
+        startActivity(intent);
+    }
+}
diff --git a/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/PeerActivity.java b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/PeerActivity.java
new file mode 100644
index 000000000..a6dbca490
--- /dev/null
+++ b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/PeerActivity.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2012 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.support.appnavigation.app;
+
+import com.example.android.support.appnavigation.R;
+
+import android.app.ActionBar;
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.NavUtils;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.TextView;
+
+public class PeerActivity extends Activity {
+    private static final String EXTRA_PEER_COUNT =
+            "com.example.android.appnavigation.EXTRA_PEER_COUNT";
+
+    private int mPeerCount;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.peer);
+
+        ActionBarCompat.setDisplayHomeAsUpEnabled(this, true);
+
+        mPeerCount = getIntent().getIntExtra(EXTRA_PEER_COUNT, 0) + 1;
+        TextView tv = (TextView) findViewById(R.id.peer_counter);
+        tv.setText(getResources().getText(R.string.peer_count).toString() + mPeerCount);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
+            NavUtils.navigateUpFromSameTask(this);
+            return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    public void onLaunchPeer(View v) {
+        Intent target = new Intent(this, PeerActivity.class);
+        target.putExtra(EXTRA_PEER_COUNT, mPeerCount);
+        startActivity(target);
+    }
+}
diff --git a/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/SimpleUpActivity.java b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/SimpleUpActivity.java
new file mode 100644
index 000000000..7c09051ca
--- /dev/null
+++ b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/SimpleUpActivity.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2012 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.support.appnavigation.app;
+
+import com.example.android.support.appnavigation.R;
+
+import android.app.ActionBar;
+import android.app.Activity;
+import android.os.Bundle;
+import android.support.v4.app.NavUtils;
+import android.view.MenuItem;
+
+public class SimpleUpActivity extends Activity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.simple_up);
+
+        ActionBarCompat.setDisplayHomeAsUpEnabled(this, true);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
+            NavUtils.navigateUpFromSameTask(this);
+            return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+}
diff --git a/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/ViewFromOtherTaskActivity.java b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/ViewFromOtherTaskActivity.java
new file mode 100644
index 000000000..46e6349c7
--- /dev/null
+++ b/samples/SupportAppNavigation/src/com/example/android/support/appnavigation/app/ViewFromOtherTaskActivity.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2012 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.support.appnavigation.app;
+
+import com.example.android.support.appnavigation.R;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.NavUtils;
+import android.view.MenuItem;
+import android.view.View;
+
+public class ViewFromOtherTaskActivity extends Activity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.view_from_other_task);
+
+        ActionBarCompat.setDisplayHomeAsUpEnabled(this, true);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
+            NavUtils.navigateUpFromSameTask(this);
+            return true;
+        }
+        return false;
+    }
+
+    public void onLaunchOtherTask(View v) {
+        Intent target = new Intent(this, OutsideTaskActivity.class)
+                .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
+                        Intent.FLAG_ACTIVITY_TASK_ON_HOME);
+        startActivity(target);
+    }
+}