commit 76cffec78834a2db525608587eae1a5a7ef998dd
author Tadashi G. Takaoka <takaoka@google.com> Wed Jul 23 14:12:27 2014 -0700
committer Tadashi G. Takaoka <takaoka@google.com> Tue Jul 29 12:05:48 2014 +0900
tree 04fa2f8cba2d02ca153f330b32a9f40ab718d615
parent 8ca3eb67d2074493751d3ff0fefed62bbfedad8c

Show "navigate up" icon on settings activity

Bug: 15813742
Change-Id: I8b1feb5c35377e62199e5a909640d9c50f970654

java/src/com/android/inputmethod/latin/LatinIME.java

diff --git a/java/src/com/android/inputmethod/latin/LatinIME.java b/java/src/com/android/inputmethod/latin/LatinIME.java
index c7c1d056..719aeac 100644
--- a/java/src/com/android/inputmethod/latin/LatinIME.java
+++ b/java/src/com/android/inputmethod/latin/LatinIME.java
@@ -20,7 +20,6 @@
 import static com.android.inputmethod.latin.Constants.ImeOption.NO_MICROPHONE;
 import static com.android.inputmethod.latin.Constants.ImeOption.NO_MICROPHONE_COMPAT;
 
-import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.BroadcastReceiver;
 import android.content.Context;
@@ -1621,24 +1620,22 @@
         if (mainKeyboardView != null) {
             mainKeyboardView.closing();
         }
-        launchSubActivity(SettingsActivity.class);
-    }
-
-    private void launchSubActivity(final Class<? extends Activity> activityClass) {
-        Intent intent = new Intent();
-        intent.setClass(LatinIME.this, activityClass);
+        final Intent intent = new Intent();
+        intent.setClass(LatinIME.this, SettingsActivity.class);
         intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
                 | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
                 | Intent.FLAG_ACTIVITY_CLEAR_TOP);
+        intent.putExtra(SettingsActivity.EXTRA_SHOW_HOME_AS_UP, false);
         startActivity(intent);
     }
 
     private void showSubtypeSelectorAndSettings() {
         final CharSequence title = getString(R.string.english_ime_input_options);
+        // TODO: Should use new string "Select active input modes".
+        final CharSequence languageSelectionTitle = getString(R.string.language_selection_title);
         final CharSequence[] items = new CharSequence[] {
-                // TODO: Should use new string "Select active input modes".
-                getString(R.string.language_selection_title),
-                getString(ApplicationUtils.getActivityTitleResId(this, SettingsActivity.class)),
+                languageSelectionTitle,
+                getString(ApplicationUtils.getActivityTitleResId(this, SettingsActivity.class))
         };
         final OnClickListener listener = new OnClickListener() {
             @Override
@@ -1651,6 +1648,7 @@
                             Intent.FLAG_ACTIVITY_NEW_TASK
                                     | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
                                     | Intent.FLAG_ACTIVITY_CLEAR_TOP);
+                    intent.putExtra(Intent.EXTRA_TITLE, languageSelectionTitle);
                     startActivity(intent);
                     break;
                 case 1:

java/src/com/android/inputmethod/latin/settings/SettingsActivity.java

diff --git a/java/src/com/android/inputmethod/latin/settings/SettingsActivity.java b/java/src/com/android/inputmethod/latin/settings/SettingsActivity.java
index c7b9dcd..b0c4940 100644
--- a/java/src/com/android/inputmethod/latin/settings/SettingsActivity.java
+++ b/java/src/com/android/inputmethod/latin/settings/SettingsActivity.java
@@ -18,11 +18,36 @@
 
 import com.android.inputmethod.latin.utils.FragmentUtils;
 
+import android.app.ActionBar;
 import android.content.Intent;
+import android.os.Bundle;
 import android.preference.PreferenceActivity;
+import android.view.MenuItem;
 
 public final class SettingsActivity extends PreferenceActivity {
+    public static final String EXTRA_SHOW_HOME_AS_UP = "show_home_as_up";
     private static final String DEFAULT_FRAGMENT = SettingsFragment.class.getName();
+    private boolean mShowHomeAsUp;
+
+    @Override
+    protected void onCreate(final Bundle savedState) {
+        super.onCreate(savedState);
+        final ActionBar actionBar = getActionBar();
+        if (actionBar != null) {
+            mShowHomeAsUp = getIntent().getBooleanExtra(EXTRA_SHOW_HOME_AS_UP, true);
+            actionBar.setDisplayHomeAsUpEnabled(mShowHomeAsUp);
+            actionBar.setHomeButtonEnabled(mShowHomeAsUp);
+        }
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(final MenuItem item) {
+        if (mShowHomeAsUp && item.getItemId() == android.R.id.home) {
+            finish();
+            return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
 
     @Override
     public Intent getIntent() {
@@ -36,7 +61,7 @@
     }
 
     @Override
-    public boolean isValidFragment(String fragmentName) {
+    public boolean isValidFragment(final String fragmentName) {
         return FragmentUtils.isValidFragment(fragmentName);
     }
 }