Attempt to invoke virtual method 'com.github.barteksc.pdfviewer.PDFView$Configurator com.github.barteksc.pdfviewer.PDFView.fromFile(java.io.File)' on a null object reference the second time i try to open the same pdf file

[mariusgab]

I download the pdf file in the files folder, the first time i display it in my fragment its ok but when i go back to open it again it crashes with the error: Attempt to invoke virtual method 'com.github.barteksc.pdfviewer.PDFView$Configurator com.github.barteksc.pdfviewer.PDFView.fromFile(java.io.File)' on a null object reference. The pdf file exists on the storage as i can see it in the file explorer and it can be read so why i cannot open it a second time???

if (filePath != null) {
            val file =  File(context!!.filesDir,filePath)
            if (file.exists() && file.canRead()) {
                pdfView.fromFile(file).load() //crash says file its null, but in the debugger says its not!!!!
            }

        }

Edit: I solved it by wrapping the code above in the thread { } closure.

[sijan8s3]

Hello there, I'm stuck in the same place, Would you please tell me how you solved this? or an example would be best.

help