From aa82330c94e9287bc685d83fa1f94098880a24f2 Mon Sep 17 00:00:00 2001
From: Felix Ableitner <me@nutomic.com>
Date: Wed, 14 May 2014 14:59:05 +0200
Subject: [PATCH] Add ActionBar back button to settings.

---
 src/main/AndroidManifest.xml                  |  8 +++++-
 .../syncthingandroid/SettingsActivity.java    | 25 ++++++++++++++++++-
 2 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/src/main/AndroidManifest.xml b/src/main/AndroidManifest.xml
index f488b347..37beeca6 100644
--- a/src/main/AndroidManifest.xml
+++ b/src/main/AndroidManifest.xml
@@ -26,7 +26,13 @@
 
 		<activity
 			android:name=".SettingsActivity"
-			android:label="@string/settings_title" />
+			android:label="@string/settings_title" >
+
+            <meta-data
+                android:name="android.support.PARENT_ACTIVITY"
+                android:value=".WebGuiActivity" />
+
+        </activity>
 
 		<service android:name=".service.SyncthingService" />
 
diff --git a/src/main/java/com/nutomic/syncthingandroid/SettingsActivity.java b/src/main/java/com/nutomic/syncthingandroid/SettingsActivity.java
index c38c9692..aaa6c9a8 100644
--- a/src/main/java/com/nutomic/syncthingandroid/SettingsActivity.java
+++ b/src/main/java/com/nutomic/syncthingandroid/SettingsActivity.java
@@ -2,13 +2,15 @@ package com.nutomic.syncthingandroid;
 
 import android.content.Intent;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
 import android.preference.Preference;
 import android.preference.PreferenceActivity;
 import android.preference.PreferenceScreen;
+import android.support.v4.app.NavUtils;
+import android.view.MenuItem;
 
 import com.nutomic.syncthingandroid.service.GetTask;
-import com.nutomic.syncthingandroid.service.SyncthingService;
 
 public class SettingsActivity extends PreferenceActivity {
 
@@ -20,6 +22,12 @@ public class SettingsActivity extends PreferenceActivity {
 	public void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
 
+		// There is currently no way to get ActionBar in PreferenceActivity on pre-honeycomb with
+		// compatibility library, so we'll have to do a version check.
+		if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
+			getActionBar().setDisplayHomeAsUpEnabled(true);
+		}
+
 		addPreferencesFromResource(R.xml.settings);
 		final PreferenceScreen screen = getPreferenceScreen();
 		final Preference version = screen.findPreference(SYNCTHING_VERSION_KEY);
@@ -46,4 +54,19 @@ public class SettingsActivity extends PreferenceActivity {
 		}
 		return super.onPreferenceTreeClick(preferenceScreen, preference);
 	}
+
+	/**
+	 * Handles ActionBar back selected.
+	 */
+	@Override
+	public boolean onOptionsItemSelected(MenuItem item) {
+		switch (item.getItemId()) {
+			case android.R.id.home:
+				NavUtils.navigateUpFromSameTask(this);
+				return true;
+			default:
+				return super.onOptionsItemSelected(item);
+		}
+	}
+
 }