BackgroundDownload | mobile platforms to enable file downloads | iOS library

I try handle progress of downloading file via BackgroundTransfer::BackgroundDownloader in c++/WinRT Windows 10 UWP App.

I read the documentation 10 times yesterday: https://docs.microsoft.com/en-us/uwp/api/windows.foundation.iasyncoperationwithprogress-2.progress?view=winrt-19041#Windows_Foundation_IAsyncOperationWithProgress_2_Progress

but i cant implement this correct :(

this is my sample code (file downloading well, but if i put .Progress function i got error: Error C2280 'void *winrt::Windows::Foundation::IUnknown::operator new(size_t)': attempting to reference a deleted function NativeModuleSample

code:

I am using BackgroundDownloader in my UWP app like:

I am trying to get my search bar to function, but it will not filter anything when I input text in it. Could somebody look at the code and tell me what may be the issue? All the items that are being displayed in the directory is data that is being pulled from a JSON folder I created. For space reasons, I took out all the elements/libraries I imported.

I was able to bring in data dynamically from a local JSON file I created in RN. However, when I went back and inserted an image for each profile so that it can be displayed dynamically with their profile info, the app broke saying "The component cannot contain children. If you want to render content on top of the image, consider using ".
I am using a background for all of the profiles already, so I really don't understand what it is saying, since the images I inputted in the JSON file would be a profile image for each character. Am I even following the proper format to call up an image? Any help would be appreciated.

This is how I have my JSON File set up:

I am a React Native newbie and after reading a tutorial, I am trying to pull in data from a local JSON folder I created in my code editor. When the screen comes up, no text or images appear, just the background - doesn't break. I am trying to call up the image and basic text info for a just a single profile page such as name and occupation for Homer Simpson. If anyone could help out, I would appreciate it or atleast guide me in the right direction so I can figure it out.

This is how I created the JSON Folder in RN:

I am a newbie to RN and I just created a search bar in my directory page using react-native-elements. However, when I type a character's name in the search bar, nothing gets triggered. I thought my state was set up correctly, since I followed the docs. Can anyone look at this and shed some light as to what may be wrong?

This is how I have the Search Bar folder set up.

I'm using BackgroundDownloader to download a file from UWP sample app.

Download process persist in the background even I close the app and the download process is automatically continued after switch off and switch on network connection. That's great.

But if I reboot the machine during download process, download operation isn't continued after the reboot but exists with PausedNoNetwork state. Download is resumed when I start UWP app again.

Is it possible to resume download process automatically after the reboot?

how do I calculate the BackgroundDownload latency/speed, e.g: 367kb/s or 5mb/s?

so far, the only potentially useful fields I know exposed by the BackgroundDownloadProgress class are BytesReceived and TotalBytesToReceive. at first I thought I can make use of the BytesReceived field but then I figured out that it's cumulative bytes since the beginning of the download operation, not the newly received chunk/bytes..

I know there must be a way to achieve this because I saw the Store team has implemented this in the store app: