1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
/*
* Copyright 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.android.lnotifications;
import android.app.Fragment;
import android.app.Notification;
import android.app.NotificationManager;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.RadioGroup;
import android.widget.Toast;
import java.util.Random;
/**
* Fragment that demonstrates how notifications with different visibility metadata differ on
* a lockscreen.
*/
public class VisibilityMetadataFragment extends Fragment {
private NotificationManager mNotificationManager;
/**
* {@link RadioGroup} that has Visibility RadioButton in its children.
*/
private RadioGroup mRadioGroup;
/**
* Incremental Integer used for ID for notifications so that each notification will be
* treated differently.
*/
private Integer mIncrementalNotificationId = Integer.valueOf(0);
/**
* Button to show a notification.
*/
private Button mShowNotificationButton;
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @return A new instance of fragment NotificationFragment.
*/
public static VisibilityMetadataFragment newInstance() {
VisibilityMetadataFragment fragment = new VisibilityMetadataFragment();
fragment.setRetainInstance(true);
return fragment;
}
public VisibilityMetadataFragment() {
// Required empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mNotificationManager = (NotificationManager) getActivity().getSystemService(Context
.NOTIFICATION_SERVICE);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_visibility_metadata_notification, container, false);
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
mShowNotificationButton = (Button) view.findViewById(R.id.show_notification_button);
mShowNotificationButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
NotificationVisibility visibility = getVisibilityFromSelectedRadio(mRadioGroup);
showNotificationClicked(visibility);
}
});
mRadioGroup = (RadioGroup) view.findViewById(R.id.visibility_radio_group);
}
/**
* Creates a new notification with a different visibility level.
*
* @param visibility The visibility of the notification to be created.
*
* @return A Notification instance.
*/
//@VisibleForTesting
Notification createNotification(NotificationVisibility visibility) {
Notification.Builder notificationBuilder = new Notification.Builder(getActivity())
.setContentTitle("Notification for Visibility metadata");
notificationBuilder.setVisibility(visibility.getVisibility());
notificationBuilder.setContentText(String.format("Visibility : %s",
visibility.getDescription()));
notificationBuilder.setSmallIcon(visibility.getNotificationIconId());
return notificationBuilder.build();
}
/**
* Returns a {@link NotificationVisibility} depending on which RadioButton in the radiogroup
* is selected.
*
* @param radiogroup The RadioGroup.
* @return The instance of {@link NotificationVisibility} corresponding to RadioButton.
*/
private NotificationVisibility getVisibilityFromSelectedRadio(RadioGroup radiogroup) {
switch (radiogroup.getCheckedRadioButtonId()) {
case R.id.visibility_public_radio_button:
return NotificationVisibility.PUBLIC;
case R.id.visibility_private_radio_button:
return NotificationVisibility.PRIVATE;
case R.id.visibility_secret_radio_button:
return NotificationVisibility.SECRET;
default:
//If not selected, returns PUBLIC as default.
return NotificationVisibility.PUBLIC;
}
}
/**
* Invoked when {@link #mShowNotificationButton} is clicked.
* Creates a new notification with a different visibility level.
*
* @param visibility The visibility of the notification to be created.
*/
private void showNotificationClicked(NotificationVisibility visibility) {
// Assigns a unique (incremented) notification ID in order to treat each notification as a
// different one. This helps demonstrate how a notification with a different visibility
// level differs on the lockscreen.
mIncrementalNotificationId = new Integer(mIncrementalNotificationId + 1);
mNotificationManager.notify(mIncrementalNotificationId, createNotification(visibility));
Toast.makeText(getActivity(), "Show Notification clicked", Toast.LENGTH_SHORT).show();
}
/**
* Enum indicating possible visibility levels for notifications and related data(String
* representation of visibility levels, an icon ID to create a notification) to
* create a notification.
*/
//@VisibleForTesting
static enum NotificationVisibility {
PUBLIC(Notification.VISIBILITY_PUBLIC, "Public", R.drawable.ic_public_notification),
PRIVATE(Notification.VISIBILITY_PRIVATE, "Private", R.drawable.ic_private_notification),
SECRET(Notification.VISIBILITY_SECRET, "Secret", R.drawable.ic_secret_notification);
/**
* Visibility level of the notification.
*/
private final int mVisibility;
/**
* String representation of the visibility.
*/
private final String mDescription;
/**
* Id of an icon used for notifications created from the visibility.
*/
private final int mNotificationIconId;
NotificationVisibility(int visibility, String description, int notificationIconId) {
mVisibility = visibility;
mDescription = description;
mNotificationIconId = notificationIconId;
}
public int getVisibility() {
return mVisibility;
}
public String getDescription() {
return mDescription;
}
public int getNotificationIconId() {
return mNotificationIconId;
}
}
}
|
