【发布时间】:2018-02-24 18:02:29
【问题描述】:
我从用户的音乐库中得到一首这样的歌曲:
Intent selectIntent = new Intent(Intent.ACTION_GET_CONTENT);
selectIntent.setType("audio/*");
startActivityForResult(selectIntent, SONG_REQUEST_CODE);
并像这样检索它:
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == SONG_REQUEST_CODE && resultCode == Activity.RESULT_OK) {
if ((data != null) && (data.getData()!=null)) {
song = data.getData(); //song is an Uri defined previuosly
}
}
}
我需要将它导入到我这样定义和创建的文件夹中:
final File dir2 = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/Chords/Imported Audio");
dir2.mkdirs();
我按照 Commonsware 的建议尝试过这样的操作,但未创建文件:
private void importAudio(Uri uri) {
String source = uri.getPath();
String destinationFile = dir2 + File.separator + songName;
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
try {
bis = new BufferedInputStream(new FileInputStream(source));
bos = new BufferedOutputStream(new FileOutputStream(destinationFile, false));
byte[] buf = new byte[1024];
bis.read(buf);
do {
bos.write(buf);
} while (bis.read(buf) != -1);
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (bis != null) bis.close();
if (bos != null) bos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
该文件不存在。我该如何解决这个问题?
【问题讨论】:
标签: android file android-file