相关疑难解决方法(0)

我想知道，如果我启动以下Intent.ACTION_GET_CONTENT

Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("application/zip");
startActivityForResult(intent, RequestCode.REQUEST_CHOOSE_BACKUP_FILE);

并尝试通过以下方式读取意图返回的 Uri。

Uri uri = data.getData();

// Figure out extension
ContentResolver contentResolver = getContext().getContentResolver();
MimeTypeMap mimeTypeMap = MimeTypeMap.getSingleton();
final String extension = mimeTypeMap.getExtensionFromMimeType(contentResolver.getType(uri));

File temp = null;
try {
    temp = File.createTempFile(Utils.getJStockUUID(), "." + extension);
} catch (IOException e) {
    e.printStackTrace();
}

// Delete temp file when program exits.
temp.deleteOnExit();

InputStream inputStream = null;
OutputStream outputStream = null;

try {
    inputStream = getContext().getContentResolver().openInputStream(uri);
    outputStream = new FileOutputStream(temp);

    byte[] buffer = …