Fix PDF File corrupted exception

[sonique6784]

Hi
this fix prevent the lib to crash on RuntimeException File corrupted.
it's a basic try - catch that set cancelled to true, to cancel the process.

here is the full trace:

java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:300)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.RuntimeException: PDF file is corrupted
at org.vudroid.pdfdroid.codec.PdfDocument.open(PdfDocument.java)
at org.vudroid.pdfdroid.codec.PdfDocument.openDocument(PdfDocument.java:28)
at org.vudroid.pdfdroid.codec.PdfContext.openDocument(PdfContext.java:18)
at org.vudroid.core.DecodeServiceBase.open(DecodeServiceBase.java:59)
at com.joanzapata.pdfview.DecodingAsyncTask.doInBackground(DecodingAsyncTask.java:52)
at com.joanzapata.pdfview.DecodingAsyncTask.doInBackground(DecodingAsyncTask.java:31)
at android.os.AsyncTask$2.call(AsyncTask.java:288)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)

[engmonsh]

@JoanZapata is there any plan to merge this pull request? I really need that handle without import library explicity into the project cc @sonique6784

[bozapro]

👍

[kostyabakay]

@sonique6784 thanks for your solution.

[kostyabakay]

It will be better to add showing message for user.

@Override
    protected Void doInBackground(Void... params) {
        try {
            decodeService = new DecodeServiceBase(new PdfContext());
            decodeService.setContentResolver(pdfView.getContext().getContentResolver());
            decodeService.open(uri);
        } catch (Exception e){
            // Prevent  java.lang.RuntimeException: PDF file is corrupted
            this.cancelled = true;
            showErrorMessage(e.getMessage());
        }
        return null;
    }

private void showErrorMessage(final String message) {
     Handler handler =  new Handler(pdfView.getContext().getMainLooper());
     handler.post( new Runnable(){
         public void run(){
             Toast.makeText(pdfView.getContext(), message, Toast.LENGTH_LONG).show();
         }
     });
 }