Scott Main | 7736f96 | 2011-12-15 15:40:25 -0800 | [diff] [blame] | 1 | page.title=Managing Audio Playback |
Scott Main | 604e4ed | 2011-12-13 18:24:34 -0800 | [diff] [blame] | 2 | |
| 3 | trainingnavtop=true |
| 4 | startpage=true |
| 5 | next.title=Controlling Your App's Volume and Playback |
| 6 | next.link=volume-playback.html |
| 7 | |
| 8 | @jd:body |
| 9 | |
| 10 | <div id="tb-wrapper"> |
| 11 | <div id="tb"> |
| 12 | |
| 13 | <h2>Dependencies and prerequisites</h2> |
| 14 | <ul> |
| 15 | <li>Android 2.0 (API level 5) or higher</li> |
| 16 | <li>Experience with <a href="{@docRoot}guide/topics/media/mediaplayer.html">Media |
| 17 | Playback</a></li> |
| 18 | </ul> |
| 19 | |
| 20 | <h2>You should also read</h2> |
| 21 | <ul> |
| 22 | <li><a href="{@docRoot}guide/topics/fundamentals/services.html">Services</a></li> |
| 23 | </ul> |
| 24 | |
| 25 | </div> |
| 26 | </div> |
| 27 | |
| 28 | |
| 29 | <p>If your app plays audio, it’s important that your users can control the audio in a predictable |
| 30 | manner. To ensure a great user experience, it’s also important that your app manages the audio focus |
| 31 | to ensure multiple apps aren’t playing audio at the same time.</p> |
| 32 | |
| 33 | <p>After this class, you will be able to build apps that respond to hardware audio key presses, |
| 34 | which request audio focus when playing audio, and which respond appropriately to changes in audio |
| 35 | focus caused by the system or other applications.</p> |
| 36 | |
| 37 | |
| 38 | |
| 39 | |
| 40 | <h2>Lessons</h2> |
| 41 | |
| 42 | <!-- Create a list of the lessons in this class along with a short description of each lesson. |
| 43 | These should be short and to the point. It should be clear from reading the summary whether someone |
| 44 | will want to jump to a lesson or not.--> |
| 45 | |
| 46 | <dl> |
| 47 | <dt><b><a href="volume-playback.html">Controlling Your App’s Volume and |
| 48 | Playback</a></b></dt> |
| 49 | <dd>Learn how to ensure your users can control the volume of your app using the hardware or |
| 50 | software volume controls and where available the play, stop, pause, skip, and previous media |
| 51 | playback keys.</dd> |
| 52 | |
| 53 | <dt><b><a href="audio-focus.html">Managing Audio Focus</a></b></dt> |
| 54 | <dd>With multiple apps potentially playing audio it's important to think about how they should |
| 55 | interact. To avoid every music app playing at the same time, Android uses audio focus to moderate |
| 56 | audio playback. Learn how to request the audio focus, listen for a loss of audio focus, and how to |
| 57 | respond when that happens.</dd> |
| 58 | |
| 59 | <dt><b><a href="audio-output.html">Dealing with Audio Output Hardware</a></b></dt> |
| 60 | <dd>Audio can be played from a number of sources. Learn how to find out where the audio is being |
| 61 | played and how to handle a headset being disconnected during playback.</dd> |
| 62 | </dl> |