PCLStorage | PCL Storage - Portable Storage APIs | Storage library
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PCL Storage - Portable Storage APIs
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QUESTION
in my app I would like to program an "offline version" of an display. That is, you can decide in advance to download the images and later videos and then view them without mobile data (due to network coverage), for example.
I use step 1 (Xamarin.Forms: How to download an Image, save it locally and display it on screen?) to download the file. Step 2 I can not use because the maximum data size is exceeded for larger files. So I use PCLStorage and save the file locally.
...ANSWER
Answered 2022-Jan-18 at 09:06I want to download an image and display it from the local file system. How do I do that?
The correct steps
Download Image from remote url .
Save it into disk locally .
Get the steam data via the path(folder+fileName).
Display it on Image .
This solution works well but in your scenario the difference that the image size is too big , so we just need to replace Xamarin.Essentials.Preferences
with built-in File Handling, cause the later one can handle large file storage .
Modify the method SaveToDisk
and GetFromDisk
.
QUESTION
Recently I have installed Xamarin.CommunityToolkit (Version: 1.3.1)
for implementing the BadgeView
. Also updated the Xamarin.Forms (Version: 5.0.0.2291)
to the latest version. After that, I am facing some weird issues on my project. After the login the app is not opening the home page, scroll view is not working, collectionview scroll is not working, even some icon taps are also not firing.
All these features are working fine before installing Xamarin.CommunityToolkit
. I have only installed CommunityToolkit
and XF
latest version. Are there any other packages or initialization required for the proper working of CommunityToolkit
?
Other Nuget Packages in the Project
...ANSWER
Answered 2021-Dec-31 at 08:30Got a perfect solution from my Microsoft thread.
Write a new badgeview.
Firstly, create CircleView.cs
QUESTION
I am trying to create a folder and a text file in that folder on the device's external storage. The same as WhatsApp does. Also, I need to write some data to that file.
Is it possible to do this in xamarin forms? Or should we need to use a dependency service?
Thanks in advance
UPDATE
@Lucas Zhang - MSFT I try your dependency service but no file or folder is generating on the device. I can't use PCLStorage
since I need to create the file in device external folder.
This is not actually I am looking for. I need a create a folder first, then a text file on that folder. I need to write data into that file without losing the previous data. That file and folder should be visible on the device file manager because that file is going to use by the users.
I think the interface should have 2 functions.
void CreateFolderAndFile(string folderName,string FileName); //on this function we need to create a folder and file on device folder if it is not already exist. If it already exists do nothing.
void WriteDataToFile(string data); //on this function we need to write the data to the file added on top
...ANSWER
Answered 2021-Mar-10 at 10:37Option 1:do this in xamarin forms? Or should we need to use a dependency service?
Of course we need to use dependency service .
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