1 2 Android WearHighBandwidthNetworking Sample 3 =================================== 4 5 Sample demonstrates how to determine if a high-bandwidth network is available for use cases that 6 require a minimum network bandwidth, such as streaming media or downloading large files. In 7 addition, the sample demonstrates best practices for asking a user to add a new Wi-Fi network for 8 high-bandwidth network operations if the bandwidth of currently available networks is inadequate. 9 10 Introduction 11 ------------ 12 13 On Android Wear, a high-bandwidth network is not always available, as the platform manages network 14 connectivity with the goal of providing the best overall user experience, balancing network 15 bandwidth and maximizing device battery life. For use cases that require high-bandwidth network 16 access, such as transporting large files or streaming media, we recommend that apps: 17 18 1. Check for an active network, and if there is one, check its bandwidth. 19 2. If there isn't an active network, or its bandwidth is insufficient, request access to an 20 unmetered Wi-Fi or cellular network. 21 3. If a high-bandwidth network is still not avaiable, ask the user to connect to a new Wi-Fi 22 network. 23 24 You can use the [ConnectivityManager][1] class to check if an active network exists, if the active 25 network has sufficient bandwidth for the desired network operation, and to request an appropriate 26 high-bandwidth network. 27 28 In addition to requesting a high-bandwidth network, you should also ensure that you are releasing 29 bound networks and cancelling any ongoing network requests when they are no longer needed. 30 31 This sample demonstrates all aspects of testing, requesting, and releasing network resources to 32 ensure a high-bandwidth network is available. In addition, the sample demonstrates the ideal user 33 experience for guiding the user through the process of acquiring a high-bandwidth network. 34 35 To try all aspects of this sample, ensure that you have removed all saved Wi-Fi networks from your 36 Wear device and that it is unplugged, as Wear devices may prefer high-bandwidth networks by default 37 while plugged-in. Also, you may wish to put your phone in airplane mode or turn off Bluetooth to 38 simulate the Wear device running standalone. 39 40 [1]: https://developer.android.com/reference/android/net/ConnectivityManager.html 41 42 Pre-requisites 43 -------------- 44 45 - Android SDK 25 46 - Android Build Tools v25.0.3 47 - Android Support Repository 48 49 Screenshots 50 ------------- 51 52 <img src="screenshots/wear-1.png" height="400" alt="Screenshot"/> <img src="screenshots/wear-2.png" height="400" alt="Screenshot"/> <img src="screenshots/wear-3.png" height="400" alt="Screenshot"/> 53 54 Getting Started 55 --------------- 56 57 This sample uses the Gradle build system. To build this project, use the 58 "gradlew build" command or use "Import Project" in Android Studio. 59 60 Support 61 ------- 62 63 - Google+ Community: https://plus.google.com/communities/105153134372062985968 64 - Stack Overflow: http://stackoverflow.com/questions/tagged/android 65 66 If you've found an error in this sample, please file an issue: 67 https://github.com/googlesamples/android-WearHighBandwidthNetworking 68 69 Patches are encouraged, and may be submitted by forking this project and 70 submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details. 71 72 License 73 ------- 74 75 Copyright 2017 The Android Open Source Project, Inc. 76 77 Licensed to the Apache Software Foundation (ASF) under one or more contributor 78 license agreements. See the NOTICE file distributed with this work for 79 additional information regarding copyright ownership. The ASF licenses this 80 file to you under the Apache License, Version 2.0 (the "License"); you may not 81 use this file except in compliance with the License. You may obtain a copy of 82 the License at 83 84 http://www.apache.org/licenses/LICENSE-2.0 85 86 Unless required by applicable law or agreed to in writing, software 87 distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 88 WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 89 License for the specific language governing permissions and limitations under 90 the License. 91
