使用下载管理器下载失败 Android 9

Question

我试图在 Android 9 上使用 DownloadManager 从 Internet 下载文件，但我只是下载失败。这是我正在测试的：

我的清单权限：

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />

我的下载代码：

    private final String FILE_NAME = "SampleDownloadApp.apk";
    String apkUrl = "https://androidwave.com/source/apk/app-pagination-recyclerview.apk";

public void download(Context context) {
    DownloadManager dm = (DownloadManager)context.getSystemService(DOWNLOAD_SERVICE);
    Uri mUri = Uri.parse(apkUrl);
    DownloadManager.Request r = new DownloadManager.Request(mUri);
    r.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
    Uri uri = Uri.parse("file://" + context.getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS).toString() + "/" + FILE_NAME_2);
    r.setDestinationUri(uri);
    dm.enqueue(r);
}

我已经在清单中尝试 android: usesCleartextTraffic = "true" 但没有任何反应。我在 logcat 和运行.

中都没有收到任何错误

我遵循了这个教程：https://androidwave.com/download-and-install-apk-programmatically/

我不知道问题出在哪里，有什么解决办法吗？

帮忙解决这个问题！

Answer 1

你有问题 URL 尝试了以下并且有效

private final String FILE_NAME = "SampleDownloadApp.apk";
    String apkUrl = "https://d-10.winudf.com/b/APK/Y29tLm5lbW8udmlkbWF0ZV80MzUxMV9iOTJjMTFkZA?_fn=VmlkTWF0ZSBIRCBWaWRlbyBEb3dubG9hZGVyIExpdmUgVFZfdjQuMzUxMV9hcGtwdXJlLmNvbS5hcGs&_p=Y29tLm5lbW8udmlkbWF0ZQ&am=cCsiKSeBEin6IVuzn-Q2PA&at=1590661203&k=3c1a8eca32edf42751cb3f5fa102d0205ed0e1d3";

public void download(Context context) {
    DownloadManager dm = (DownloadManager)context.getSystemService(DOWNLOAD_SERVICE);
    Uri mUri = Uri.parse(apkUrl);
    DownloadManager.Request r = new DownloadManager.Request(mUri);
    r.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
    r.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, FILE_NAME);
    dm.enqueue(r);
}

使用下载管理器下载失败 Android 9

Unsuccessful download with Download Manager Android 9

java

android

android-download-manager

android-9.0-pie