Share pdf file to this app and render it Android/IOS #6
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Zeljko-Predjeskovic
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| var pdf = Intent.ClipData.GetItemAt(0); | ||
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| // Open a stream from the URI | ||
| var pdfStream = ContentResolver.OpenInputStream(pdf.Uri); |
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so we need the ContentResolver, to get the file stream - we cannot use "File.OpenRead"
=> in iCL Filler, please copy the stream to the temp folder of iCL Filler.
This is a folder that is inside the apps root older, so we can easily access it using "File.OpenRead".
That way, we can use the stream multiple times (e.g. insert a plan to multiple fields, not just one)
When the user places the shared file, iCL Filler can simply read it from the temp-file.
Once it has been used, it should be deleted.
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| public override bool OpenUrl(UIApplication app, NSUrl url, NSDictionary options) | ||
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| SharedStream.Instance = System.IO.File.Open(url.Path, System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.ReadWrite); |
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You are receiving a file from the operating system.
You will most certainly not be able to "create" it or "write" to that stream.
So pelase only open it with "File.OpenRead"! (Or do I misunderstand something?)
| { | ||
| private static Stream _stream; | ||
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| public static Stream Instance |
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Well... having a static "Stream" is not the best option as it is not memory-efficient and you can only access this stream once. So you cannot check what type of file it is, or what is contained without actually consuming this file!
Better is to
- copy the shared file to a temp folder (within the apps root folder)
- in the
SharedFilesServicehave the path to the temp file asCurrentlySharedFile.
that way
- you can read this file as often as you want
- you can determine, what kind of file it is (pdf, jpeg, png, ...?)
- you can even keep this shared file after the app is being restarted, because this file is still within the temp folder of the app.
A shared file will not be accessible anymore after an application restart!
| public ShareButton() | ||
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| InitializeComponent(); | ||
| SharedVisibles.Visibles.Attach(this); |
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what is this Attach doing?
No description provided.