commit 1671fbbc9d8f58c35056fcb0bc61d58a7dc11f3a
author Tadashi G. Takaoka <takaoka@google.com> Wed Jul 23 15:03:32 2014 -0700
committer Tadashi G. Takaoka <takaoka@google.com> Sun Jul 27 14:26:57 2014 +0900
tree 2ec9969d2b1e7d388386f5d88cdaef144b35705d
parent 1a77577da755b0921a3b77fc66ff9b99b50b59f6

Show "up navigate" icon in input method subtype enabler

Since API 16 (and API 14 with support library) and later, we started
supporting "up navigation" model.
http://developer.android.com/training/implementing-navigation/ancestral.html

As a part of Settings app and a part of an IME's settings activity,
the input method subtype enabler should have a "up navigate icon on
its action bar.

Bug: 16595009
Change-Id: Iaaadd970395b9c9254ab60b2e8fee22dffb8c7f6

src/com/android/settings/inputmethod/InputMethodAndSubtypeEnablerActivity.java

diff --git a/src/com/android/settings/inputmethod/InputMethodAndSubtypeEnablerActivity.java b/src/com/android/settings/inputmethod/InputMethodAndSubtypeEnablerActivity.java
index b664540..bafae2b 100644
--- a/src/com/android/settings/inputmethod/InputMethodAndSubtypeEnablerActivity.java
+++ b/src/com/android/settings/inputmethod/InputMethodAndSubtypeEnablerActivity.java
@@ -15,7 +15,9 @@
  */
 package com.android.settings.inputmethod;
 
+import android.app.ActionBar;
 import android.content.Intent;
+import android.os.Bundle;
 
 import com.android.settings.SettingsActivity;
 
@@ -23,6 +25,22 @@
     private static final String FRAGMENT_NAME = InputMethodAndSubtypeEnabler.class.getName();
 
     @Override
+    protected void onCreate(final Bundle savedState) {
+        super.onCreate(savedState);
+        final ActionBar actionBar = getActionBar();
+        if (actionBar != null) {
+            actionBar.setDisplayHomeAsUpEnabled(true);
+            actionBar.setHomeButtonEnabled(true);
+        }
+    }
+
+    @Override
+    public boolean onNavigateUp() {
+        finish();
+        return true;
+    }
+
+    @Override
     public Intent getIntent() {
         final Intent modIntent = new Intent(super.getIntent());
         if (!modIntent.hasExtra(EXTRA_SHOW_FRAGMENT)) {