android - 从android中的downloadManager查找下载完成

Question

我正在使用 DownloadManager 从 Web 服务器从我的 Android 应用程序将文件下载到设备外部存储。我需要在完成此下载后启动另一个功能。我的文件下载代码是这样的:

String url = "http://192.168.1.105/download/file.ext";
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url));
request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, "files.ext");
DownloadManager manager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);
final long downloadId = manager.enqueue(request);

请建议如何获得类似onDownloadComplete......

Answer 1

您可以使用 ACTION_DOWNLOAD_COMPLETE与广播接收器

public class DonwloadCompleteReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        // get complete download id
        long completeDownloadId = intent.getLongExtra(DownloadManager.EXTRA_DOWNLOAD_ID, -1);
        // to do here
    }
}