1 /*
2  * Copyright (C) 2012 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.inputmethod.latin.settings;
18 
19 import com.android.inputmethod.latin.utils.FragmentUtils;
20 
21 import android.app.ActionBar;
22 import android.content.Intent;
23 import android.os.Bundle;
24 import android.preference.PreferenceActivity;
25 import android.view.MenuItem;
26 
27 public final class SettingsActivity extends PreferenceActivity {
28     public static final String EXTRA_SHOW_HOME_AS_UP = "show_home_as_up";
29     private static final String DEFAULT_FRAGMENT = SettingsFragment.class.getName();
30     private boolean mShowHomeAsUp;
31 
32     @Override
onCreate(final Bundle savedState)33     protected void onCreate(final Bundle savedState) {
34         super.onCreate(savedState);
35         final ActionBar actionBar = getActionBar();
36         if (actionBar != null) {
37             mShowHomeAsUp = getIntent().getBooleanExtra(EXTRA_SHOW_HOME_AS_UP, true);
38             actionBar.setDisplayHomeAsUpEnabled(mShowHomeAsUp);
39             actionBar.setHomeButtonEnabled(mShowHomeAsUp);
40         }
41     }
42 
43     @Override
onOptionsItemSelected(final MenuItem item)44     public boolean onOptionsItemSelected(final MenuItem item) {
45         if (mShowHomeAsUp && item.getItemId() == android.R.id.home) {
46             finish();
47             return true;
48         }
49         return super.onOptionsItemSelected(item);
50     }
51 
52     @Override
getIntent()53     public Intent getIntent() {
54         final Intent intent = super.getIntent();
55         final String fragment = intent.getStringExtra(EXTRA_SHOW_FRAGMENT);
56         if (fragment == null) {
57             intent.putExtra(EXTRA_SHOW_FRAGMENT, DEFAULT_FRAGMENT);
58         }
59         intent.putExtra(EXTRA_NO_HEADERS, true);
60         return intent;
61     }
62 
63     @Override
isValidFragment(final String fragmentName)64     public boolean isValidFragment(final String fragmentName) {
65         return FragmentUtils.isValidFragment(fragmentName);
66     }
67 }
68