android - 从url获取文件大小

Question

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Answer 1

用这个

new Thread(new Runnable() {
  @Override
  public void run() {
    try {
      URL myUrl = new URL(url);
      URLConnection urlConnection = myUrl.openConnection();
      urlConnection.connect();
      int file_size = urlConnection.getContentLength();
      Log.i("sasa", "file_size = " + file_size);
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
}).start();