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89 lines
3.4 KiB
89 lines
3.4 KiB
7 months ago
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Android NotificationChannels Sample (Kotlin)
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===================================
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Demonstration of using channels to categorize notifications by topic. This feature was
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added in Android O, and allows users to have fine-grained control over their
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notification preferences.
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Introduction
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------------
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Android O introduces notification channels to provide a unified system to help users
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manage notifications. When you target Android O, you must implement one or more
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notification channels to display notifications to your users.
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You can create a notification channel for each distinct type of notification you need
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to send. You can also create notification channels to reflect choices made by users of
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your app. For example, you might setup separate notification channels for each
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conversation group created by a user in a messaging app.
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To create a channel, call `[NotificationManager.createNotificationChannels()][1]`. You
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can then use `[Notification.Builder.setChannel()][2]` to assign your notification to that
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channel.
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Users can now manage most of the settings associated with notifications using a
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consistent system UI. All notifications posted to a notification channel behave the
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same. To access the settings screen, use the `ACTION_CHANNEL_NOTIFICATION_SETTINGS`
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intent:
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```
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Intent intent = new Intent(Settings.ACTION_CHANNEL_NOTIFICATION_SETTINGS);
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intent.putExtra(Settings.EXTRA_CHANNEL_ID, mChannel.getId());
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intent.putExtra(Settings.EXTRA_APP_PACKAGE, getPackageName());
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startActivity(intent);
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```
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[1]: https://developer.android.com/reference/android/app/NotificationManager.html#createNotificationChannels(java.util.List<android.app.NotificationChannel>)
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[2]: https://android-dot-devsite.googleplex.com/reference/android/app/Notification.Builder.html#setChannel(java.lang.String)
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Pre-requisites
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--------------
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- Android SDK Preview O
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- Android Build Tools v25.0.3
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- Android Support Repository
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Screenshots
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-------------
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<img src="screenshots/1-main.png" height="400" alt="Screenshot"/>
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Getting Started
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---------------
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This sample uses the Gradle build system. To build this project, use the
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"gradlew build" command or use "Import Project" in Android Studio.
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Support
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-------
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- Google+ Community: https://plus.google.com/communities/105153134372062985968
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- Stack Overflow: http://stackoverflow.com/questions/tagged/android
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If you've found an error in this sample, please file an issue:
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https://github.com/googlesamples/android-NotificationChannels
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Patches are encouraged, and may be submitted by forking this project and
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submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
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License
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-------
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Copyright 2017 The Android Open Source Project, Inc.
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Licensed to the Apache Software Foundation (ASF) under one or more contributor
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license agreements. See the NOTICE file distributed with this work for
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additional information regarding copyright ownership. The ASF licenses this
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file to you under the Apache License, Version 2.0 (the "License"); you may not
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use this file except in compliance with the License. You may obtain a copy of
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the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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License for the specific language governing permissions and limitations under
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the License.
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