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      1 /**
      2  * Copyright (c) 2014, Google Inc.
      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 package com.android.mail.ui;
     17 
     18 import android.app.ActionBar;
     19 import android.app.Activity;
     20 import android.content.pm.PackageInfo;
     21 import android.content.pm.PackageManager;
     22 import android.os.Bundle;
     23 
     24 import com.android.mail.R;
     25 import com.android.mail.utils.LogTag;
     26 import com.android.mail.utils.LogUtils;
     27 
     28 /**
     29  * This activity customizes its ActionBar and leaves the heavy lifting to its child HelpFragment.
     30  */
     31 public class HelpActivity extends Activity {
     32 
     33     private static final String LOG_TAG = LogTag.getLogTag();
     34 
     35     public static final String PARAM_HELP_URL = "help.url";
     36 
     37     @Override
     38     protected void onCreate(Bundle savedInstanceState) {
     39         super.onCreate(savedInstanceState);
     40 
     41         setContentView(R.layout.help_activity);
     42 
     43         // Customize the action bar behavior and display
     44         final ActionBar actionBar = getActionBar();
     45         if (actionBar != null) {
     46             actionBar.setDisplayHomeAsUpEnabled(true);
     47             actionBar.setTitle(R.string.help_and_info);
     48 
     49             final PackageManager packageManager = getPackageManager();
     50             if (packageManager != null) {
     51                 try {
     52                     final String appName = getString(R.string.app_name);
     53                     final PackageInfo pi = packageManager.getPackageInfo(getPackageName(), 0);
     54                     actionBar.setSubtitle(getString(R.string.version, appName, pi.versionName));
     55                 } catch (PackageManager.NameNotFoundException e) {
     56                     // Can't find version? Oh well. Just leave it blank.
     57                     LogUtils.wtf(LOG_TAG, e, "Unable to locate application version.");
     58                 }
     59             }
     60         }
     61     }
     62 }