Android 之 添加按钮添加声音

http://www.cnblogs.com/plokmju/p/android_SoundPool.html

package cn.bgxt.soundpooldemo;

import java.util.HashMap;
import java.util.Map;

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

public class MainActivity extends Activity {
    private Button btn_newqqmsg, btn_newweibontf, btn_newweibotoast;
    private SoundPool pool;
    private Map<String, Integer> poolMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btn_newqqmsg = (Button) findViewById(R.id.btn_newqqmsg);
        btn_newweibontf = (Button) findViewById(R.id.btn_newweibontf);
        btn_newweibotoast = (Button) findViewById(R.id.btn_newweibotoast);

        poolMap = new HashMap<String, Integer>();
        // 实例化SoundPool，大小为3
        pool = new SoundPool(3, AudioManager.STREAM_MUSIC, 0);
        // 装载音频进音频池，并且把ID记录在Map中
        poolMap.put("newqqmsg", pool.load(this, R.raw.qqmsg, 1));
        poolMap.put("newweibontf", pool.load(this, R.raw.notificationsound, 1));
        poolMap.put("newweibotoast", pool.load(this, R.raw.newblogtoast, 1));

        pool.setOnLoadCompleteListener(new OnLoadCompleteListener() {

            @Override
            public void onLoadComplete(SoundPool soundPool, int sampleId,
                    int status) {
                // 每次装载完成均会回调
                Log.i("main", "音频池资源id为：" + sampleId + "的资源装载完成");
                // 当前装载完成ID为map的最大值，即为最后一次装载完成
                if (sampleId == poolMap.size()) {
                    Toast.makeText(MainActivity.this, "加载声音池完成!",
                            Toast.LENGTH_SHORT).show();
                    btn_newqqmsg.setOnClickListener(click);
                    btn_newweibontf.setOnClickListener(click);
                    btn_newweibotoast.setOnClickListener(click);
                    // 进入应用播放四次声音
                    pool.play(poolMap.get("newweibotoast"), 1.0f, 1.0f, 0, 3,
                            1.0f);
                }
            }
        });
    }

    private View.OnClickListener click = new OnClickListener() {

        @Override
        public void onClick(View v) {

            switch (v.getId()) {
            case R.id.btn_newqqmsg:
                if (pool != null) {
                    pool.play(poolMap.get("newqqmsg"), 1.0f, 1.0f, 0, 0, 1.0f);
                }
                break;
            case R.id.btn_newweibontf:
                if (pool != null) {
                    pool.play(poolMap.get("newweibontf"), 1.0f, 1.0f, 0, 0,
                            1.0f);
                }
                break;
            case R.id.btn_newweibotoast:
                if (pool != null) {
                    pool.play(poolMap.get("newweibotoast"), 1.0f, 1.0f, 0, 0,
                            1.0f);
                }
                break;
            default:
                break;
            }
        }
    };

    @Override
    protected void onDestroy() {
        // 销毁的时候释放SoundPool资源
        if (pool != null) {
            pool.release();
            pool = null;
        }
        super.onDestroy();
    }
}