How to get file size using retrofit 2 . I tried by return -1?

I want to build App to download file with progress-bar and I tried to get file size from server. while using retrofit 2 library but failed to get the total-file size. and return -1, i tested its work on build:gradle:3.0.1 but not in build:gradle:3.5.3 here my code ApiService apiService = RetroClient.getApiService(); Call<ResponseBody> call = apiService.downloadFile(“fsharpapps/fonts/customFont.ttf”);…

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singleton class in NPM dependencies management

I have a doubt about singleton in NPM dependencies management. Here is my dependency tree: – YoutubeScraper – ScrapperFoundation – YoutubeScraperCore – ScrapperFoundation ScrapperFoundation contains a singleton class ‘ScrapperDataService’ that both packages ‘YoutubeScraper’ and ‘YoutubeScraperCore’ are using. I’m wondering if that is two instances of ‘ScrapperDataService’? If yes, what would be good practice to achieve…

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When I update Android RecyclerView with new items, old views are briefly shown before new views override them

I have the following code in my adapter: private val items: MutableList<T> open fun setItems(items: List<T>?) { this.items.clear() if (items != null) this.items.addAll(items) notifyDataSetChanged() } When corresponding RecyclerView is shown for the 1st time it is filled with views from the data I get from the network as expected. When I request new data from…

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javax.xml.parsers.SAXParserFactory cannot be created

In my code I use multiple threads to parse multiple xml responses at the same time. My code is basically like this private static final JAXBContext JAXB_CONTEXT = JAXBContext.newInstance(JAXB_CONTEXT_PATH); executorService = newFixedThreadPool(5); builder.executeAsync(executorService).whenComplete((result, ex) -> { _parseResponse(result); }); private void _parseResponse(@Nonnull final byte[] response) { final ByteArrayInputStream stream = new ByteArrayInputStream(response); Object responseObj = JAXB_CONTEXT.createUnmarshaller().unmarshal(stream);…

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