Android Question app runs smooth in debug but crashes in runtime

Zeev Goldstein · Jan 24, 2023

hi,

i'm facing an odd behavior with my app
when running in debug mode it runs perfectly
when trying to run it in runtime it crashes

edit:
my app is using download directory
it asks for permission and in debug it all runs smoothly

i'm not sure it is related to this feature
maybe i will try to comment the entire part of read/write to download and see what happens
i mention this as i read somewhere that there's a problem with accessing download folder etc...

does this make any sense?
any solution?

Sagenut · Jan 24, 2023

I would start posting an example project if possible, but for sure at least the Errors Log.

Sagenut · Jan 24, 2023

Zeev Goldstein said:
edit:
my app is using download directory
it asks for permission and in debug it all runs smoothly

The fact about requesting permissions could be a good point to check.

Zeev Goldstein · Jan 24, 2023

Sagenut said:
I would start posting an example project if possible, but for sure at least the Errors Log.

How does it possible that the app runs in debug but crash in runtime?

Sagenut · Jan 24, 2023

Zeev Goldstein said:
How does it possible that the app runs in debug but crash in runtime?

I don't want to write a stupidity, but I think to remember that Debug Mode enable some Permissions by itself.
But this Permissions then needs to be asked correctly in Release Mode.

Zeev Goldstein · Jan 24, 2023

Sagenut said:
I don't want to write a stupidity, but I think to remember that Debug Mode enable some Permissions by itself.
But this Permissions then needs to be asked correctly in Release Mode.

Thanks, I see.
Is there any simple example I can see for external_storage permission request?

Sagenut · Jan 24, 2023

Zeev Goldstein said:
Thanks, I see.
Is there any simple example I can see for external_storage permission request?

It will be a personal app or it will go on the Play Store?
If it's for personal use I think that setting

B4X:

<uses-sdk android:minSdkVersion="5" android:targetSdkVersion="26"/>

in the Manifest will solve many problems.
But you can take a look here
https://www.b4x.com/android/forum/threads/externalstorage-access-sd-cards-and-usb-sticks.90238/

Zeev Goldstein · Jan 24, 2023

Sagenut said:
It will be a personal app or it will go on the Play Store?
If it's for personal use I think that setting

B4X:

<uses-sdk android:minSdkVersion="5" android:targetSdkVersion="26"/>

in the Manifest will solve many problems.
But you can take a look here

B4X:

https://www.b4x.com/android/forum/threads/externalstorage-access-sd-cards-and-usb-sticks.90238/

It must be on Google play store

Sagenut · Jan 24, 2023

Zeev Goldstein said:
It must be on Google play store

So check the link in my previous post.

Zeev Goldstein · Jan 24, 2023

Sagenut said:
So check the link in my previous post.

I will, thanks

Zeev Goldstein · Jan 24, 2023

OK, managed to solve the problem - I followed Johan's advice from last time and now I got the app running smoothly in runtime as in debug.

The only question now is will it load to play store?
I ask for write_external_memory permission - is that something Google allows?

Thanks

agraham · Jan 24, 2023

Zeev Goldstein said:
I ask for write_external_memory permission - is that something Google allows?

No. Only certain specific apps, like file explorers, can now use that for store apps.

Zeev Goldstein · Jan 24, 2023

Oh that's bad
So what's the solution?
How can I get such permission? Or alternatively bypass it?
I can't take my users to private download and installation with permissions they do not know
That's bad

Is there a folder (any folder will do as I just want to share data between my 2 apps) that I can access 'freely'?

agraham · Jan 24, 2023

Perhaps you could use External Storage. It can access a folder in main memory as well.

ExternalStorage - Access SD cards and USB sticks

Before we start: External storage means a real sd card or a connected mass storage USB device. This class can also be used to access the secondary storage (File.DirRootExternal). This becomes relevant with newer versions of Android that restrict direct access. It has nothing to do with runtime...

www.b4x.com

Zeev Goldstein · Jan 24, 2023

agraham said:
Perhaps you could use External Storage. It can access a folder in main memory as well.

ExternalStorage - Access SD cards and USB sticks

Before we start: External storage means a real sd card or a connected mass storage USB device. This class can also be used to access the secondary storage (File.DirRootExternal). This becomes relevant with newer versions of Android that restrict direct access. It has nothing to do with runtime...

www.b4x.com

Exactly what I want, I don't need download folder and any other will do as long as I can access it from my 2 apps. This is critical as I need to share data between then

Any suggestion?
Or just create a folder with name I choose that will be 'neighbor' to download, I see many other apps that create such folders for their use

The question is Google play - will they let me do it or block it?
Do they specifically block aceess to download?

agraham · Jan 24, 2023

Zeev Goldstein said:
The question is Google play - will they let me do it or block it?

It should be OK otherwise I wouldn't have suggested it.

Zeev Goldstein said:
Do they specifically block aceess to download?

Yes, but you can make sub-folders of it and access them with External Storage..

Zeev Goldstein · Jan 24, 2023

OK, great
So I will either create a sub folder under download or even better a specific folder for my use

Thank you so much for this advise

Zeev Goldstein · Jan 24, 2023

Zeev Goldstein said:
OK, great
So I will either create a sub folder under download or even better a specific folder for my use

Thank you so much for this advise

Pal, that worked like charm - thank you!

now last question if i may

for some reason the apk name is result.apk
when install it it is all ok and the app name is correct - it is only the apk filename
i forgot where i set this - so where do i set the apk name to be what i want or it is not relevant?

once again - many thanks

Sagenut · Jan 24, 2023

The name of the app that you set in Activity Main must be without blank spaces, otherwise you will get result.apk

Zeev Goldstein · Jan 25, 2023

Sagenut said:
The name of the app that you set in Activity Main must be without blank spaces, otherwise you will get result.apk

my app's name has no spaces...
still the apk's name is result.apk

B4X:

#Region  Project Attributes
    #ApplicationLabel: XXX_YYYzzz
    #VersionCode: 1
    #VersionName:
    #SupportedOrientations: unspecified
    #CanInstallToExternalStorage: False
#End Region

another app that i have do have spaces in the name and the apk's name is perfect

Android Question app runs smooth in debug but crashes in runtime

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