PdfViewer crash during on Android during Unload

[dsapo]

Hi Support:I have a page which has many links to open a different pdf file.  I got errors randomly errors after doing the Unload, but always happen.{System.NullReferenceException: Object reference not set to an instance of an object.  at Syncfusion.SfPdfViewer.XForms.Droid.ScrollViewEx.RemoveAllInstances () [0x00004] in :0   at Syncfusion.SfPdfViewer.XForms.Droid.ScrollViewEx.Unload (System.Boolean isDisposeCompletely) [0x00073] in :0   at Syncfusion.SfPdfViewer.XForms.Droid.ScrollViewEx.Unload () [0x00000] in :0   at Syncfusion.SfPdfViewer.XForms.Droid.PdfDependencyServices.Unload (System.Object nativeObject) [0x00000] in :0   at Syncfusion.SfPdfViewer.XForms.SfPdfViewer.Unload () [0x0000c] in :0  Also I would like to know If the user is going to open different files (one at the time), should I call the Unload before a opening a new file ?Thank inadvancedDavid

[Sathish Sivakumar]

Hi David, 

 

Thank you for using Syncfusion products. 

 

We were able to reproduce the issue at our end. A support incident to track the status of this defect has been created under your account. Please log on to our support website to check for further updates  

https://www.syncfusion.com/account/login?ReturnUrl=%2fsupport%2fdirecttrac%2fincidents   

 

Please let me know if you have any questions.   

 

Regards, 

Sathish 

[Silvano Babini]

Hi support,

Any update to this bug, i'm not able to use your plugin due to the crash of app unloading the ContentPage. (only if pdf is showed in a scrollview)

I got this error:

CountDownTimerEx.OnTick (System.Int64 millisUntilFinished)

System.ObjectDisposedException: Cannot access a disposed object. Object name: 'Syncfusion.SfPdfViewer.XForms.Droid.ScrollViewEx'.

• 1
  JniPeerMembers.AssertSelf (Java.Interop.IJavaPeerable self)
• 2
  JniPeerMembers+JniInstanceMethods.InvokeNonvirtualInt32Method (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters)
• 3
  View.get_ScrollY ()
• 4
  CountDownTimerEx.OnTick (System.Int64 millisUntilFinished)
• 5
  CountDownTimer.n_OnTick_J (System.IntPtr jnienv, System.IntPtr native__this, System.Int64 millisUntilFinished)
• 6
  (wrapper dynamic-method) System.Object.5f69dcd6-f9c9-4e0a-a4c0-b3836ecde1e5(intptr,intptr,long)
  
  
  
  

[Navaneetha Kannan Sudalai Muthu]

Hi Silvano,   

The issue “ObjectDisposedException occurs in PdfViewer when unloading ContentPage” has been fixed and the fix will be included in our Essential Studio 2018 Volume 2 release which is expected to be available in June 2018.   

If you need the fix earlier than the public release kindly create a support incident under you Direct-Trac account.   

https://www.syncfusion.com/account/login   

Best,  

Navaneetha Kannan