SFChart.iOS Exporting to PDF or Image?

Question

How Do i export the sfchart to image or pdf. The methods SaveAsImage, GetStream exists in xamarin form. they dont exist in xamarin.ios sfchart component.

Is there a way to export the chart to image or pdf?

Divya Venkatesan · Answer

Hi Balasubramanian, 
 
Thanks for using Syncfusion products. 
 
We have prepared a sample to export chart to image. Please download the sample from the following link. 
 
Sample: http://www.syncfusion.com/downloads/support/forum/136911/ze/SaveAsImage852352584  
 
Please let us know if you need any further assistance. 
 
Regards, 
Divya Venkatesan

Balasubramanian Ramanathan · Answer

Hi,Thank you. Now i can export to file. It would be nice if the sfchart component provide a method to do this automatically. Regards

Parthiban Sundaram · Answer

Hi Balasubramanian,Thanks for the update. We are glad that the given solution has helped to achieve your requirement. Regarding “It would be nice if the sfchart component provide a method to do this automatically”We would like to inform this is the generic way to export the view / custom control in Xamarin iOS. However, we will consider your suggestion in near future. 
 Please let us know, if you need further assistance on this. Regards,Parthiban S

Victoria · Answer

I just downloaded that solution and I pressed the save button but it crashed the app after pressing it. It crashes at this part of the code 




            image.SaveToPhotosAlbum(new UIImage.SaveStatus(delegate (UIImage img, NSError error) { }));Could you help me out?

Michael Prabhu M · Answer

Hi Victoria,

Greetings from Syncfusion, we have analyzed the reported issue, and this is a common issue. You must permission to access the drive to save images to photos library in info.plist file for iOS 11 and above version.

Please follow below steps to enable the access to save image in phots library:

1.Open info.plist file .

2.info.plist have three tabs at bottom. Click to Source tab.

3.Add new entry as Privacy – Photo Library Usage Description and Privacy – Photo Library Addition Usage Description.

4.Add the Value as This App needs permission to access the Photos. (Refer screenshot below)

Each of the privacy keys map to specific values that are set in the Info.plist. Opening it in a text editor, we’ll see the following:

Info.plist

<key>NSPhotoLibraryUsageDescription</key>

<string>This App needs permission to access the Photos</string>

<key>NSAppleMusicUsageDescription</key>

<string>New Entry</string>

<key>NSPhotoLibraryAddUsageDescription</key>

<string>This App needs permission to access the Photos</string>

Screenshot:

We have also prepared a sample based on this and it can be downloaded from the below link.

Sample: 136911

Thanks,

Michael