Ooops. I figured this out. It was actually catching the problem fine
but crashing during my txt2 writing.
-Jack
On Jun 2, 1:01 pm, jdeslip <jdes...@gmail.com> wrote:
> Hi All,
>
> I have an app that downloads a pdf from a server and tries to open it
> with an itent:
>
> Intent intent = new Intent();
> intent.setAction(android.content.Intent.ACTION_VIEW);
> File file = new File(filepath+filename);
> intent.setDataAndType(Uri.fromFile(file), "application/pdf");
> try {
> startActivity(intent);} catch (ActivityNotFoundException e) {
>
> final Exception ef = e;
> txt2.post(new Runnable() {
> public void run() {
> txt2.setText(" "+ef);
> }
> });
>
> }
>
> Everything works great if any applications are installed on the device
> that will open a pdf. But, if no apps are installed, this part of the
> code just segfaults (my catching of the exception apparently does not
> work).
>
> Here is the logcat output
>
> I/ActivityManager( 61): Starting activity: Intent
> { act=android.intent.action.VIEW dat=file:///sdcard/arXiv/tmp.pdf
> typ=application/pdf }
> W/dalvikvm( 322): threadid=7: thread exiting with uncaught exception
> (group=0x4001d800)
> E/AndroidRuntime( 322): FATAL EXCEPTION: Thread-9
> E/AndroidRuntime( 322): java.lang.NullPointerException
> E/AndroidRuntime( 322): at
> com.commonsware.android.arXiv.singleitemwindow
> $1.run(singleitemwindow.java:243)
> W/ActivityManager( 61): Force finishing activity
> com.commonsware.android.arXiv/.singleitemwindow
>
> So, my question is can I somehow determine if any app is available for
> application/pdf mimetype ahead of time. Or, can I prevent the code
> from dying here and tell the user to install a pdf reader app?
>
> -Jack
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