修改mid播放的逻辑

midiplaylib/src/main/java/com/bassmedia/BassMusicPlay.java

@@ -34,6 +34,7 @@ public class BassMusicPlay {
 
     public boolean Load(Context context, String pathMusic) {
         // setup recording device (using default device)
+        Stop();//先释放资源
         if (mFmlHandler == null)
             mFmlHandler = new FmlHandler(context.getMainLooper());
         if (mSingleExecutor == null)
@@ -163,13 +164,14 @@ public class BassMusicPlay {
     public boolean IsStop() {
         return (BASS.BASS_ChannelIsActive(midi) == BASS.BASS_ACTIVE_STOPPED);
     }
+
     /**
-     *
      * @param speed 1表示原速
      */
-    public void setSpeed(float speed){
+    public void setSpeed(float speed) {
         BASS.BASS_ChannelSetAttribute(midi, BASSMIDI.BASS_ATTRIB_MIDI_SPEED, speed);
     }
+
     /**
      * 播放
      */
@@ -186,21 +188,24 @@ public class BassMusicPlay {
      * 由于音源sf2为440基准
      * 如果大于440，则为正数
      * 如果小于440，为复数
+     *
      * @param targetHz 415 ~ 466
      * @return
      */
-    private int calculateFineTune(int targetHz){
-        return (int) ((Math.log((double)targetHz / 440d) * 3986 +100) * 8192 / 100);
+    private int calculateFineTune(int targetHz) {
+        return (int) ((Math.log((double) targetHz / 440d) * 3986 + 100) * 8192 / 100);
     }
 
     /**
      * 设置音分偏移
+     *
      * @param trackNum
      * @param targetHz
      */
-    public boolean setNoteFineTune(int trackNum, int targetHz){
+    public boolean setNoteFineTune(int trackNum, int targetHz) {
         return BASSMIDI.BASS_MIDI_StreamEvent(midi, trackNum, BASSMIDI.MIDI_EVENT_FINETUNE, BASS.Utils.LOWORD(calculateFineTune(targetHz)));
     }
+
     /**
      * 暂停
      */
@@ -245,9 +250,10 @@ public class BassMusicPlay {
 
     /**
      * 获取总的TICK
+     *
      * @return
      */
-    public int GetTotalTICK(){
+    public int GetTotalTICK() {
         return (int) BASS.BASS_ChannelGetLength(midi, BASSMIDI.BASS_POS_MIDI_TICK);
     }
 
@@ -261,8 +267,8 @@ public class BassMusicPlay {
         return BASS.BASS_ChannelGetLength(midi, BASS.BASS_POS_BYTE);
     }
 
-    public double getTotalLength2Second(){
-        return BASS.BASS_ChannelBytes2Seconds(midi,  BASS.BASS_ChannelGetLength(midi, BASS.BASS_POS_BYTE));
+    public double getTotalLength2Second() {
+        return BASS.BASS_ChannelBytes2Seconds(midi, BASS.BASS_ChannelGetLength(midi, BASS.BASS_POS_BYTE));
     }
 
     /**