How to pause and resume DownloadManager

Question

I know that this question is duplicated, I do not have a satisfactory answer. I use the Android System DownloadManager to download a file from network work, it works fine with file download.

private DownloadManager downloadManager; Button start; Button pause; Button resume; 

initialization of all buttons above

 downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE); Uri Download_Uri = Uri .parse("uri"); DownloadManager.Request request = new DownloadManager.Request( Download_Uri); 

then the download queue was set. when the turn draws near, it starts loading

my problem is is there an easy way to pause the download and resume the download as

 downloadManager.pause(); downloadManager.resume(); 

Thanks in advance.