Share source from a local file

Question

Hi,

I would like my app to be a share source, and there is one issue about my source file.

sdkSample.currentPSPDoc.workingImagePath is a absolute path to a jpeg file in "TempState" folder.

In this kind of codes, it always shows a message like "XXXX can not share".

However, if I do not create StorageFile from path, but to use StorageFile from OpenFilePicker, it does work. The question is, is it the right way to return the bitmap/storageitem? Thanks.

Alex

			Windows.Storage.StorageFile.getFileFromPathAsync(sdkSample.currentPSPDoc.workingImagePath).then(
                    function (newDocWorkFile)
                    {
                    	// create stream from path
                      	request.data.properties.title = newDocWorkFile.name; // Title required
                    	request.data.properties.description = newDocWorkFile.path; // Description optional

                    	// When sharing an image, don't forget to set the thumbnail for the DataPackage
                    	var streamReference = Windows.Storage.Streams.RandomAccessStreamReference.createFromFile(newDocWorkFile);
                    	request.data.properties.thumbnail = streamReference;

                    	// It's recommended to always use both setBitmap and setStorageItems for sharing a single image
                    	// since the Target app may only support one or the other

                    	// Put the image file in an array and pass it to setStorageItems
                    	request.data.setStorageItems([newDocWorkFile]);

                    	// The setBitmap method requires a RandomAccessStreamReference
                    	request.data.setBitmap(streamReference);
                    }
					);

Answer 1

I believe the problem is the absolute path, try usign the known folders instead.

-Jeff

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Jeff Sanders (MSFT)

Answer 2

You can also use getFileFromApplicationUriAsync() and pass in something like "ms-appx:///packageFile.txt" or "ms-appdata:///appDataFile.txt" to obtain storage files for things in the install directory or local application data folder. The latter approach would require you to store the photo in the local app data folder instead of the temp app data folder.

Justin Cooperman

Answer 3

Thanks for reply. I tried to use a photo in my "LocalState" folder, still the same. use URI, the same.

Then, I tried to move the FileStorage object out of the event handler, then it can work.

So my codes are now like attached. That works for me, just need to keep a FileStorage object and not sure if that takes lots of resource or not.

Alex

// some where in my code, I need to generate sdkSample.ShareFileObj, and this is still the photo from an absolute path

	function fnPrepareDocShareSource()
	{
		sdkSample.ShareFileObj = null;


		{
			if (sdkSample.currentPSPDoc != null)
			{
				Windows.Storage.StorageFile.getFileFromPathAsync(sdkSample.currentPSPDoc.workingImagePath).then(
					function (newDocWorkFile)
					{
                		sdkSample.ShareFileObj = newDocWorkFile;
					});
			}
		}
	}	

//then, in the event handler, use that object can work.

function imageDataRequestedHandler(request)
	{
		if (sdkSample.ShareFileObj)
		{
			// create stream from path
			request.data.properties.title = "Share Image"; // Title required
			request.data.properties.description = sdkSample.ShareFileObj.name; // Description optional

			// When sharing an image, don't forget to set the thumbnail for the DataPackage
			var streamReference = Windows.Storage.Streams.RandomAccessStreamReference.createFromFile(sdkSample.ShareFileObj)//newDocWorkFile);
			request.data.properties.thumbnail = streamReference;

			// It's recommended to always use both setBitmap and setStorageItems for sharing a single image
			// since the Target app may only support one or the other

			// Put the image file in an array and pass it to setStorageItems
			request.data.setStorageItems([sdkSample.ShareFileObj]);//newDocWorkFile]);

			// The setBitmap method requires a RandomAccessStreamReference
			request.data.setBitmap(streamReference);
		}
		
	}

Answer 4

Hi,

can any one provide me sample project of above .

It is not working on my machine

Thanks,

Manoj

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