1 /*******************************************************************************
2  *      Copyright (C) 2012 Google Inc.
3  *      Licensed to The Android Open Source Project.
4  *
5  *      Licensed under the Apache License, Version 2.0 (the "License");
6  *      you may not use this file except in compliance with the License.
7  *      You may obtain a copy of the License at
8  *
9  *           http://www.apache.org/licenses/LICENSE-2.0
10  *
11  *      Unless required by applicable law or agreed to in writing, software
12  *      distributed under the License is distributed on an "AS IS" BASIS,
13  *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  *      See the License for the specific language governing permissions and
15  *      limitations under the License.
16  *******************************************************************************/
17 
18 package com.android.mail.ui;
19 
20 import android.content.Context;
21 import android.os.Bundle;
22 import android.os.StrictMode;
23 import android.support.v7.app.ActionBarActivity;
24 
25 import java.io.FileDescriptor;
26 import java.io.PrintWriter;
27 
28 /**
29  * <p>
30  * A complete Mail activity instance. This is the toplevel class that creates the views and handles
31  * the activity lifecycle.</p>
32  *
33  * <p>This class is abstract to allow many other activities to be quickly created by subclassing
34  * this activity and overriding a small subset of the life cycle methods: for example
35  * ComposeActivity and CreateShortcutActivity.</p>
36  *
37  * <p>In the Gmail codebase, this was called GmailBaseActivity</p>
38  *
39  */
40 public abstract class AbstractMailActivity extends ActionBarActivity implements RestrictedActivity {
41 
42     private final UiHandler mUiHandler = new UiHandler();
43 
44     private static final boolean STRICT_MODE = false;
45 
46     @Override
onCreate(Bundle savedInstanceState)47     protected void onCreate(Bundle savedInstanceState) {
48         if (STRICT_MODE) {
49             StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()
50                     .detectDiskReads()
51                     .detectDiskWrites()
52                     .detectNetwork()   // or .detectAll() for all detectable problems
53                     .penaltyLog()
54                     .build());
55             StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder()
56                     .detectLeakedSqlLiteObjects()
57                     .detectLeakedClosableObjects()
58                     .penaltyLog()
59                     .build());
60         }
61 
62         super.onCreate(savedInstanceState);
63         mUiHandler.setEnabled(true);
64     }
65 
66     @Override
onStart()67     protected void onStart() {
68         super.onStart();
69 
70         mUiHandler.setEnabled(true);
71     }
72 
73     @Override
onSaveInstanceState(Bundle outState)74     protected void onSaveInstanceState(Bundle outState) {
75         super.onSaveInstanceState(outState);
76 
77         mUiHandler.setEnabled(false);
78     }
79 
80     @Override
onResume()81     protected void onResume() {
82         super.onResume();
83 
84         mUiHandler.setEnabled(true);
85     }
86 
87     @Override
getActivityContext()88     public Context getActivityContext() {
89         return this;
90     }
91 
92     @Override
dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args)93     public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) {
94         super.dump(prefix, fd, writer, args);
95         // Supplementally dump the contents of the OS LoaderManager and FragmentManager.
96         // Both are still possible to use, and the supportlib dump reads from neither.
97         getLoaderManager().dump(prefix, fd, writer, args);
98         getFragmentManager().dump(prefix, fd, writer, args);
99     }
100 
101 }
102