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我正在創建一個應用程序,當您按下屏幕上的一系列按鈕時播放音符。當按下按鈕時,還會彈出一系列音符(最多10個音符)。該應用程序首先運行良好。但是,如果您有一系列要播放的音符,並且連續幾次按下播放按鈕,應用程序將最終強制關閉。任何幫助將不勝感激。播放聲音序列導致強制關閉
private final int duration = 1; // seconds
private final int sampleRate = 10000;
private final int numSamples = duration * sampleRate;
private final double sample[] = new double[numSamples];
private double freqOfTone; // hz
private final byte generatedSnd[] = new byte[2 * numSamples];
public void onPlayButtonClick(View v){
playMultiNoteSound();
}
synchronized void playMultiNoteSound(){
CharSequence chrs1;
TextView lblNoteList;
lblNoteList=(TextView)findViewById(R.id.lblNoteList);
chrs1=lblNoteList.getText();
for(int i=0;i<chrs1.length();i++){
final int int1=i;
Thread thrdPlay=new Thread(new Runnable(){
public void run(){
int minSize =AudioTrack.getMinBufferSize(sampleRate, AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT);
audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC,
sampleRate, AudioFormat.CHANNEL_CONFIGURATION_MONO,
AudioFormat.ENCODING_PCM_16BIT, minSize,
AudioTrack.MODE_STREAM);
char chrCurrent;
CharSequence chrs;
TextView lblNoteList;
lblNoteList=(TextView)findViewById(R.id.lblNoteList);
chrs=lblNoteList.getText();
chrCurrent=chrs.charAt(int1);
Double[]allTones;
allTones= new Double[chrs.length()];
allTones[int1]=getToneForText(chrCurrent);
byte[] results;
results=genSelectTone(allTones[int1]);
audioTrack.write(results, 0, results.length);
audioTrack.setStereoVolume(1.0f, 1.0f);
audioTrack.play();
if(audioTrack.getPlayState()==AudioTrack.PLAYSTATE_STOPPED){
audioTrack.stop();
audioTrack.release();
}
}
});
thrdPlay.setDaemon(true);
thrdPlay.start();
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if(thrdPlay!=null){
thrdPlay.stop();
thrdPlay=null;
}
}
}
public double getToneForText(char val){
Float dblResult;
dblResult=0f;
switch (val){
case '1':
dblResult=261.63f;
break;
case '2':
dblResult=293.66f;
break;
case '3':
dblResult=329.63f;
break;
case '4':
dblResult=349.23f;
break;
case '5':
dblResult=392.0f;
break;
case '6':
dblResult=440.0f;
break;
case '7':
dblResult=493.88f;
break;
case '8':
dblResult=523.25f;
break;
case '9':
dblResult=587.33f;
break;
case '0':
dblResult=659.26f;
break;
}
return dblResult;
}
我相信這是所有的相關代碼。如果您需要其他信息/代碼,請告訴我。
如果有一個力量關閉,會有一個引起異常的堆棧跟蹤。發佈logcat輸出。 – Squonk
除了@Squonk建議的(你應該這樣做)之外,你也可以考慮查看如何讀取logcat。每次您的應用程序拋出一個「例外」時,它都會讓您不必再問一個新問題。 – adneal
我忽略提及我已經使用LogCat。錯誤如下所示:getsBuffer track已禁用,重新啓動。 – user1458354