Question

下载完成后，我成功创建了下载管理器发送的下载管理器和广播意图操作：使用此{{3}}

但是，我使用下载管理器下载的不是1个文件，而是每次约5-10个文件和这个意图：

registerReceiver(onComplete, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));

BroadcastReceiver onComplete=new BroadcastReceiver() {
public void onReceive(Context ctxt, Intent intent) {
    // your code
}

每次下载完成后

就会启动。

如何下载所有文件，我该如何发送意图？

Answer 1

为您的下载代码创建一个名为MyDownloadManager的类，每次需要下载新文件时，都要调用MyDownloadManager类的新实例。 Android的默认DownloadManager将自动处理并开始下载多个文件。

private void downloadFile(String url){
        MyDownloadManager downloadManager = new MyDownloadManager();
        downloadManager.DownloadFile(getApplicationContext(), url);
    }

您的 MyDownloadManager 类将如下所示：

public class MyDownloadManager{
private Context mContext;
private String url;

public void Download(Context context, String url){
    mContext = context;
    this.url = url;
    String serviceString = Context.DOWNLOAD_SERVICE;
    DownloadManager downloadManager;
    downloadManager = (DownloadManager)mContext.getSystemService(serviceString);    
    DownloadManager.Request request = new DownloadManager.Request(uri);
    long reference = downloadManager.enqueue(request);
}

public void RegisterDownloadManagerReciever(Context context) {
    BroadcastReceiver receiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            if (DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals(action)) {
                // Do something on download complete
            }
        }
    };
    context.registerReceiver(receiver, new IntentFilter(
            DownloadManager.ACTION_DOWNLOAD_COMPLETE));
    }
}

Android下载管理器明确完成

1 个答案: