java.lang.NullPointerException at com.github.barteksc.pdfviewer.PDFView.loadComplete

[MdTayoburRahman]

java.lang.NullPointerException:
at com.github.barteksc.pdfviewer.PDFView.loadComplete (PDFView.java)
at com.github.barteksc.pdfviewer.DecodingAsyncTask.onPostExecute (DecodingAsyncTask.java)
at com.github.barteksc.pdfviewer.DecodingAsyncTask.onPostExecute (DecodingAsyncTask.java)
at android.os.AsyncTask.finish (AsyncTask.java:695)
at android.os.AsyncTask.access$600 (AsyncTask.java:180)
at android.os.AsyncTask$InternalHandler.handleMessage (AsyncTask.java:712)
at android.os.Handler.dispatchMessage (Handler.java:106)
at android.os.Looper.loop (Looper.java:214)
at android.app.ActivityThread.main (ActivityThread.java:7094)
at java.lang.reflect.Method.invoke (Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:494)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:975)

[taichushouwang]

Refer to this submission #824
I create a subclass, change the renderingHandlerThread. And it work.

class MyPdfView(context: Context, set: AttributeSet) : PDFView(context, set) {
    override fun onAttachedToWindow() {
        super.onAttachedToWindow()
        val field: Field = PDFView::class.java.getDeclaredField("renderingHandlerThread")
        field.isAccessible = true
        if (field.get(this) == null) {
            field.set(this, HandlerThread("PDF renderer"))
        }
    }
}