我使用从服务器下载音频文件
try {
// URL url = new URL("http://commonsware.com/misc/test2.3gp");
URL url = new URL("http://192.168.0.2/supplications/"+fileName);
//URL url = new URL("http://www.msoftech.com/supplications/android/"+fileName);
HttpURLConnection c = (HttpURLConnection) url.openConnection();
c.setRequestMethod("GET");
c.setDoOutput(true);
c.connect();
Log.v("log_tag", "PATH: " + PATH);
File file = new File(PATH);
file.mkdirs();
File outputFile = new File(file, fileName);
FileOutputStream fos = new FileOutputStream(outputFile);
InputStream is = c.getInputStream();
byte[] buffer = new byte[1024];
int len1 = 0;
while ((len1 = is.read(buffer)) != -1)
{
fos.write(buffer, 0, len1);
}
fos.close();
is.close();
} catch (IOException e) {
Log.d("log_tag", "Error: " + e);
}
Log.v("log_tag", "Check: " +cd2);
这里 PATH = "/data/data/packagename/sounds/filename
它工作正常,音频文件下载并成功播放,但我的问题是当我单击主页按钮然后重新启动应用程序时意味着找不到下载音频的文件夹,即退出应用程序时意味着所有下载的音频都被删除自动地。它抛出未找到的异常文件。
为了播放下载的文件,我使用了如下代码,
public void audioPlayer(String path, String fileName) throw FileNotFoundException
{
//set up MediaPlayer
FileInputStream fileInputStream = new FileInputStream(PATH+"/"+fileName);
//String command = "chmod 666 " + recordFile.toString();
try {
mp.setDataSource(fileInputStream.getFD());
// mp.setDataSource(path+"/"+filename.mp3);
} 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();
}
try {
mp.prepare();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
mp.start();
它有什么问题我必须做什么才能永久保存音频文件。