这是用于从其他类动态获取文件名(.mp3)的代码,因为我的资产文件夹中有许多 mp3 文件:
playAudioButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v)
{
FileName audio=new FileName();
String audioName=audio.getAudioName(count).toString();
if(audioName=="NO Audio")
{
Toast.makeText(getApplicationContext(), "No Audio for this page", Toast.LENGTH_SHORT).show();
}
else
{
try {
afd=getAssets().openFd(audioName + ".mp3");
mp = new MediaPlayer();
mp.setDataSource(afd.getFileDescriptor(),afd.getStartOffset(),afd.getLength());
mp.prepareAsync();
mp.start();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
});
}
原木猫:
03-20 11:21:28.726: E/SpannableStringBuilder(4418): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
03-20 11:21:28.726: E/SpannableStringBuilder(4418): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
03-20 11:22:24.968: D/libEGL(4579): loaded /vendor/lib/egl/libEGL_POWERVR_SGX540_120.so
03-20 11:22:24.976: D/libEGL(4579): loaded /vendor/lib/egl/libGLESv1_CM_POWERVR_SGX540_120.so
03-20 11:22:24.984: D/libEGL(4579): loaded /vendor/lib/egl/libGLESv2_POWERVR_SGX540_120.so
03-20 11:22:25.070: D/OpenGLRenderer(4579): Enabling debug mode 0
03-20 11:22:38.773: E/MediaPlayer(4579): start called in state 4
03-20 11:22:38.773: E/MediaPlayer(4579): error (-38, 0)
03-20 11:22:38.773: E/MediaPlayer(4579): Error (-38,0)
需要注意的点: 1. 我已经检查过堆栈溢出的类似线程,答案是使用 prepareAsync() 2. 我使用过 prepareAsync()
提前致谢。