soundpool简介

package com.itheima.soundpool;

import android.app.Activity;

import android.media.AudioManager;

import android.media.SoundPool;

import android.os.Bundle;

import android.view.View;

public class MainActivity extends Activity {

 private SoundPool soundPool;

 private int soundId;

 @Override

 protected void onCreate(Bundle savedInstanceState) {

  super.onCreate(savedInstanceState);

  setContentView(R.layout.activity_main);

  /**

   * maxStreams<br>

   * the maximum number of simultaneous streams for this SoundPool object<br>

   * streamType<br>

   * the audio stream type as described in AudioManager For example, game

   * applications will normally use STREAM_MUSIC.<br>

   * srcQuality<br>

   * the sample-rate converter quality. Currently has no effect. Use 0 for

   * the default.

   */

  soundPool = new SoundPool(5, AudioManager.STREAM_MUSIC, 0);

  /**

   * context<br>

   * the application context<br>

   * resId<br>

   * the resource ID<br>

   * priority<br>

   * the priority of the sound. Currently has no effect. Use a value of 1

   * for future compatibility.

   */

  soundId = soundPool.load(this, R.raw.office, 1);

 }

 public void click(View view) {

  /**

   * soundID a soundID returned by the load() function <br>

   * leftVolume left volume value (range = 0.0 to 1.0) <br>

   * rightVolume right volume value (range = 0.0 to 1.0) <br>

   * priority stream priority (0 = lowest priority) <br>

   * loop loop mode (0 = no loop, -1 = loop forever) rate playback<br>

   * rate (1.0 = normal playback, range 0.5 to 2.0)

   */

  int soundID = soundId;

  float leftVolume = 1.0f;

  float rightVolume = 1.0f;

  int priority = 0;

  int loop = -1;

  float rate = 1.0f;

  soundPool.play(soundID, leftVolume, rightVolume, priority, loop, rate);

 }

}