ADD file via upload

main/java/com/example/musicwork/chuangguan/PianoMusic.java

@@ -0,0 +1,57 @@
+package com.example.musicwork.chuangguan;
+
+import java.util.HashMap;
+import android.content.Context;
+import android.media.AudioManager;
+import android.media.SoundPool;
+import android.util.Log;
+
+import com.example.musicwork.R;
+
+
+public class PianoMusic {
+    //由于资源包含了钢琴的全部音效，特此备注：资源里与琴键的对应为：
+    //c2 - C; c3 - c; c4 - c1(中央C); c5 - c2
+    int Music[] = {
+            R.raw.c3, R.raw.d3, R.raw.e3, R.raw.f3, R.raw.g3, R.raw.a3, R.raw.b3,
+            R.raw.c4, R.raw.d4, R.raw.e4, R.raw.f4, R.raw.g4, R.raw.a4, R.raw.b4,
+            R.raw.c5, R.raw.d5, R.raw.e5, R.raw.f5, R.raw.g5, R.raw.a5, R.raw.b5,
+            };
+
+    //使用soundpool播放音效
+    SoundPool soundPool;
+    HashMap<Integer, Integer> soundPoolMap;
+
+    //加载ID
+    public PianoMusic(Context context) {
+        soundPool = new SoundPool(10, AudioManager.STREAM_MUSIC, 100);
+        soundPoolMap = new HashMap<Integer, Integer>();
+        //加载音效ID到SoundPoolMap
+        for (int i = 0; i < Music.length; i++) {
+            soundPoolMap.put(i, soundPool.load(context, Music[i], 1));
+        }
+        soundPool.setOnLoadCompleteListener(new SoundPool.OnLoadCompleteListener() {
+            @Override
+            public void onLoadComplete(SoundPool soundPool, int sampleId, int status) {
+                Log.e("map", "音频池资源id为：" + sampleId + "的资源装载完成");
+            }
+        });
+    }
+
+    //播放
+    public void soundPlay(int no) {
+         soundPool.play(soundPoolMap.get(no), 1,1, 1, 0, 1.0f);
+    }
+
+    //结束
+    public int soundOver() {
+
+        return soundPool.play(soundPoolMap.get(1), 100, 100, 1, 0, 1.0f);
+    }
+
+    @Override
+    protected void finalize() throws Throwable {
+        soundPool.release();
+        super.finalize();
+    }
+}