是否可以通过 Android 应用程序中的代码清除下载管理器应用程序数据
我想通过代码清除默认下载管理器应用程序的缓存和数据。是否可以？我需要这个，因为手动清除下载管理器数据可以让我的应用程序下载更成功。是否可以从我们的应用程序中删除其他应用程序的缓存或数据？
I would like to clear both cache and data of default download manager app through code. Is it possible? I need this because manually clearing download manager data is giving more successful downloads from my app. Is it possible to delete cache or data of other app from our application?
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来自 @Sergey Benner 的评论，遵循代码形式
blog.lytsing.org/archives/135.html 并从那里获取 getContentResolver().delete(Downloads.CONTENT_URI, "(" + Downloads.TITLE + " = 'screenshot')", null);
由于 android.provider.Downloads 是私有类，因此我们无法直接引用它，因此我用从类 https://android.googlesource.com/platform/frameworks/base/+/master/core/java/android/provider/Downloads.java
getContentResolver().delete(Uri.parse("content ://downloads/my_downloads"),"(" + "标题" + " = '您的下载标题')", null);
通过使用它，我可以从下载管理器中清除一些数据。
请注意，我将其应用到使用系统密钥签名的应用程序中。
from the comment of @Sergey Benner following the code form
blog.lytsing.org/archives/135.html and taken from there getContentResolver().delete(Downloads.CONTENT_URI, "(" + Downloads.TITLE + " = 'screenshot')", null);
As android.provider.Downloads is private class so we can not reference it directly, so I replaced the constants with strings taken from the class https://android.googlesource.com/platform/frameworks/base/+/master/core/java/android/provider/Downloads.java
getContentResolver().delete(Uri.parse("content://downloads/my_downloads"),"(" + "title" + " = 'Your download title')", null);
By using this I am able to clear some data from Download manager.
Please note I applied it in app signed with systems keys.