Android App Woes

Dan Friedman dan at
Mon Aug 14 00:54:08 EDT 2017


I don’t think I can make a bug report yet.  I don’t have it isolated outside my project; which LC will surely tell me to do!   I’ll work on trying to isolate the issue.

What I know is this:
(1) My project runs perfectly with acceleratedRendering enabled – except when the app is suspended, it crashes when brought to the foreground again.
(2) I put a button in my app with one line, it simply disables acceleratedRendering.  When I tap this button, the app no longer crashes when brought to the foreground after being suspended.

I am not really sure where to go to try to isolate the issue.   There is something definitely up with acceleratedRendering on Android.  On iOS, I enable acceleratedRendering at the beginning of my startup routine.  Works great.  On Android, this makes the app hang.  But, if I move the enabling of acceleratedRendering to the end of the startup routine, it works fine.  I had a related issue with setting the textFont of the mainStack at startup (we’re using an external font).  When I set the textFont of the stack after setting the acceleratedRendering, the app crashed.  But, setting the textFont of the stack before setting the acceleratedRendering was fine.

This is kind of a high-profile client and I’ve got about 1 week to get this resolved before I have to deliver the final app.  This must get resolved this week!


> Please enter a bug report about this, it's a different issue than the one I wrote up.
> --
> Jacqueline Landman

On August 13, 2017 1:07:12 PM Dan Friedman via use-livecode
<use-livecode at<>> wrote:

> I took Ralph’s advice and made a 0 line stack to try to recreate the issue.
>  To my astonishment, the app didn’t have the same problem!   So, I went
> back to my project and started to trace what I have in my app that might be
> causing the problem.   After a while, I discovered that if I do not enable
> acceleratedRendering, the app does not bail on suspend and stays in memory.
>  Problem solved!   Except that I can’t leave acceleratedRendering off.  All
> the scrollers stutter horribly!
> I went back the test app and enabled acceleratedRendering.  But, it doesn’t
> have the same problem.  I am most puzzled.
> Help!
> -Dan
>> I have built my android app with LC 8.1.5.   It runs fine on the device.
>> You then hit the home button to return to the OS.  Tap the app icon
>> again and you get “Unfortunatly, [appName] has stopped.”.  Tap the icon
>> again and
>> it does a complete reboot of the app.   Apps made in LC 7 did not have this
>> issue, they stayed running in the background – like an app should.   Is
>> there a trick to getting an Android app from LC 8.1.5 to behave like it should?
>> I can’t deliver an app to my client that (a) doesn’t stay alive in the
>> background, and (b) crashes every other launch.
>> Anyone have any insight on this??
>> -Dan

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