How to realize Audio playback in Android Development
This article mainly explains "how to achieve audio playback in Android development", interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn how to play audio in Android development.
Add another play (Sound) method to BeatBox:
Play audio (BeatBox.java)
MSoundPool = new SoundPool (MAX_SOUNDS, AudioManager.STREAM_MUSIC, 0)
LoadSounds ()
}
Public void play (Sound sound) {
Integer soundId = sound.getSoundId ()
If (soundId = = null) {
Return
}
MSoundPool.play (soundId, 1.0f, 1.0f, 1,0,1.0f)
}
Public List getSounds () {
Return mSounds
}
Check to make sure that soundId is not a null value before playing. Failure to load Sound results in a null value for soundId.
After the check passes, you can call the SoundPool.play (int, float, float, int, int, float) method to play the audio. These parameters are: audio ID, left volume, right volume, priority (invalid), whether to loop, and playback rate. We need maximum volume and constant speed to play, so input a value of 1.0. Whether the loop parameter is passed a value of 0, which means there is no loop.
Finally, add a button listener method to click the button to play audio, as shown below:
Click the button to play audio (BeatBoxFragment.java)
Private class SoundHolder extends RecyclerView.ViewHolder
Implements View.OnClickListener {
Private Button mButton
Private Sound mSound
Public SoundHolder (LayoutInflater inflater, ViewGroup container) {
Super (inflater.inflate (R.layout.list_item_sound, parent, false))
MButton = (Button) itemView.findViewById (R.id.list_item_sound_button)
MButton.setOnClickListener (this)
}
Public void bindSound (Sound sound) {
MSound = sound
MButton.setText (mSound.getName ())
}
@ Override
Public void onClick (View v) {
MBeatBox.play (mSound)
}
}
Run the application again, click any button, and you should be able to hear the audio playing, as shown in the following figure.
At this point, I believe you have a deeper understanding of "how to achieve audio playback in Android development". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!
