When the MediaRecorder is no longer needed, its resources must be Put it back into its idle state: recorder.Reset() Once the MediaRecorder has been stopped, call the To stop the recording, call the Stop method on the MediaRecorder: recorder.Stop() Recorder.SetAudioEncoder (AudioEncoder.AmrNb) Recorder.SetOutputFormat (OutputFormat.ThreeGpp) Recorder.SetAudioSource (AudioSource.Mic) Recorder = new MediaRecorder () // Initial state. The following code sample illustrates this sequence: protected MediaRecorder recorder Method to specify the name of the output file that the audio data is Set the output file audio format using the Specify which hardware device to use to capture the audio input via Recording audio with the MediaRecorder requires the following steps: Instructions on how to set application permissions see Order to record audio, the RECORD_AUDIO permission must be set. States to get to the point where it can start recording. MediaPlayer, it is state-sensitive and transitions through several The corollary to MediaPlayer for recording audio in Android is the Using the MediaRecorder Class to Record Audio When the player is no longer needed, the resources must be released by Player ends an ongoing playback: player.Stop() This will resume from the paused location in the playback: player.Start() The playback can be suspended by calling the The code sample below illustrates this usage: protected MediaPlayer player Playing audio with MediaPlayer requires the following sequence: It's important to interact with MediaPlayer in the orderĭescribed below to avoid errors. One of its methods in the wrong state will cause an exception to be However, MediaPlayer is very state-sensitive and calling MediaPlayer can play either local or remote files by passing in theįile path. The simplest way to play audio in Android is with the built-in It is necessary to request the RECORD_AUDIO permissions in AndroidManifest.XML: That debugging audio on Android must be done on a device. This guide requires Android 2.0 (API level 5) or higher. RecordingĪudio using the AudioRecord class and reading directly from Working with Low-Level Audio – Playing audio using theĪudioTrack class by writing directly to memory buffers. Notifications to create well-behaved applications that respondĬorrectly to events (such as incoming phone calls) by suspending or Working with Audio Notifications – Using audio Recording Audio – Using the built-in MediaRecorder Streamed audio files with the AudioTrack class. MediaPlayer class to play audio, including local audio files and Playing Audio with MediaPlayer – Using the built-in This articleĮxamines working with audio in Android, and covers the following topics Have become a first-class feature in mobile APIs.Īndroid provides extensive support for multimedia. Have required dedicated pieces of equipment – cameras, music Modern mobile devices have adopted functionality that formerly would It also covers working with Audio events broadcast by other applications, so that developers can build well-behaved applications. This guide focuses on audio in Android and covers playing and recording audio using the built-in audio player and recorder classes, as well as the low-level audio API. I have inline comments to make it easier to understand.The Android OS provides extensive support for multimedia, encompassing both audio and video. These methods will handle the initialization and resource management for the MediaPlayer. These methods are crucial to the MediaPlayer because the Service lifecycle is closely connected to the MediaPlayers. In this section I will focus on the Service lifecycle. If you want to learn more about audio focus then SitePoint article has a great tutorial. OnBufferingUpdateListener, AudioManager. public class MediaPlayerService extends Service implements MediaPlayer. The last implementation, from AudioManager.OnAudioFocusChangeListener is necessary to handle requests for AudioFocus from other apps that want to play media files. The class has multiple MediaPlayer implementations to handle events that can happen while playing audio. The following class is an example of this service. The core of the Audio Player app is the media player service. Step Two – Create the MediaPlayer Service
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |