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When to use audiomanager to change audio output?
For example, when your app replaces an existing UI. This is not recommended because the Android AudioManager mixes all audio streams of the same type together. These methods change the volume of every app that uses the stream. Avoid using them:
How are transport controls used in video apps?
For video apps, the transport controls support video scrubbing with the forward/backward controls. While scrubbing the display shows thumbnails to help navigate through the video. The library includes abstract classes as well as out-of-the-box implementations that provide more granular control for developers.
How to adjust the volume of an audio stream?
To ensure that volume controls adjust the correct stream, you should call setVolumeControlStream () passing in the stream type matching your attributes that you can retrieve from AudioAttributes.getVolumeControlStream. setVolumeControlStream ( AudioManager. STREAM_MUSIC );
How does memory management work on an Android?
Release memory in response to events. As described in Overview of Android Memory Management, Android can reclaim memory from your app in several ways or kill your app entirely if necessary to free up memory for critical tasks.
What’s the best way to play audio files?
To play and record audio in the fewest lines of code, use the AV Foundation framework. See Playing Sounds Easily with the AVAudioPlayer Class and Recording with the AVAudioRecorder Class. To provide full-featured audio playback including stereo positioning, level control, and simultaneous sounds, use OpenAL.
What can I do with the audio toolbox framework?
Use the Audio Toolbox framework to play audio with synchronization capabilities, access packets of incoming audio, parse audio streams, convert audio formats, and record audio with access to individual packets. For details, see Audio Toolbox Framework Reference and the SpeakHere sample code project.