android SoundPool类测试



package com.example.ch11_soundpooltest;

import java.util.HashMap;

import android.app.Activity;
import android.media.AudioManager;
import android.media.SoundPool;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity implements OnClickListener {

    Button                    bomb, shot, arrow;
    // 定义一个SoundPool
    SoundPool                 soundPool;
    HashMap<Integer, Integer> soundMap = new HashMap<Integer, Integer>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        bomb = (Button) findViewById(R.id.bomb);
        shot = (Button) findViewById(R.id.shot);
        arrow = (Button) findViewById(R.id.arrow);
        // 设置最多可容纳10个音频流，音频的品质为5
        soundPool = new SoundPool(10, AudioManager.STREAM_SYSTEM, 5);
        // load方法加载指定音频文件，并返回所加载的音频ID。此处使用HashMap来管理这些音频流
        soundMap.put(1, soundPool.load(this, R.raw.bomb, 1));
        soundMap.put(2, soundPool.load(this, R.raw.shot, 1));
        soundMap.put(3, soundPool.load(this, R.raw.arrow, 1));
        bomb.setOnClickListener(this);
        shot.setOnClickListener(this);
        arrow.setOnClickListener(this);
    }

    // 重写OnClickListener监听器接口的方法
    @Override
    public void onClick(View source) {
        // 判断哪个按钮被单击
        switch (source.getId()) {
            case R.id.bomb:
                soundPool.play(soundMap.get(1), 1, 1, 0, 0, 1);
                break;
            case R.id.shot:
                soundPool.play(soundMap.get(2), 1, 1, 0, 0, 1);
                break;
            case R.id.arrow:
                soundPool.play(soundMap.get(3), 1, 1, 0, 0, 1);
                break;
        }
    }

}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="horizontal" >

    <Button
        android:id="@+id/bomb"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/bomb" />

    <Button
        android:id="@+id/shot"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/shot" />

    <Button
        android:id="@+id/arrow"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/arrow" />

</LinearLayout>