android 调用系统下载器下载文件

下载文件
DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
String file = "https://xxxx/20241115145431899326_20241115145431.jpg";
String fileName = file.substring(file.lastIndexOf("/") + 1);
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(file));
request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, fileName);
request.setTitle(fileName);
request.setDescription("");
downloadManager.enqueue(request);

// 注册广播接收器,监听下载完成结果
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(DownloadManager.ACTION_DOWNLOAD_COMPLETE);
registerReceiver(broadcastReceiver, intentFilter);

private final BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        if (DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals(action)) {
            Log.d("dl", "DOWNLOAD_COMPLETE");
            runOnUiThread(()-> {
                Toast.makeText(MainActivity.this, "DOWNLOAD_COMPLETE", Toast.LENGTH_LONG).show();
            });
        }
    }
};