[Interest] Android: Better way of asserting permanent permission refusal

[René Hansen]

All things happen for a reason. :)

My rationale, is that I have a feature which is location based. I want to
be able to let the user toggle the feature on/off via a switch on a
settings page. In the case where a user has permanently deactivated
location permissions for the app, I want this switch to equally be
disabled, with a message instructing the user to edit global permissions,
if they wish to use the feature.

I haven't tried out *shouldShowRequestPermissionRationale*, since I don't
really understand what it does from the docs.

"Returns true if you should show UI with a rationale for requesting a
permission."

I mean... What rationale? What UI?


/René

On Tue, 26 Jun 2018 at 15:05 Pierre-Yves Siret <py.siret at gmail.com> wrote:

> 2018-06-26 13:27 GMT+02:00 René Hansen <renehh at gmail.com>:
>
>> Hi,
>>
>>
>> When requesting specific permissions through
>> QtAndroid::requestPermissions{,Sync}, the host native permissions popup has
>> the option to "Don't show this again", on subsequent requests, which will
>> permanently disable the popups on future invocations.
>>
>> From then on a permission can only be given through host sytem global
>> settings.
>>
>> The question then becomes, is there a canonical way to figure out, if the
>> user has ticked the "Don't show again" for a specific permission?
>>
>> Right now I've resorted to heuristic, where I time the response of the
>> permissions request. Typically it comes back in < 150 msec, when it has
>> been perma-denied, and the fastest I've been able to allow or deny it via
>> the popup was about 900 msec. I've placed my guesstimate predicate at 400
>> msec, to allow a bit of margin for error on slower devices.
>>
>> But... this seems like such a bad hack.
>>
>> Can anyone tell me of a better way to do this?
>>
>>
>> Best regards,
>>
>> René Hansen
>>
>> _______________________________________________
>> Interest mailing list
>> Interest at qt-project.org
>> http://lists.qt-project.org/mailman/listinfo/interest
>>
>> Hello,
>
> The better way is not do it.
> This Qt API just mirrors the Android API, and there is no native way to
> know if the user selected "Don't show this again" previously. At least not
> without calling requestPermissions.
>
> Why do you want to check this?
> If you want to show a rationale to thw user about why the app need a
> permission, you can use QtAndroid::shouldShowRequestPermissionRationale.
> It will return true if the user previously denied the permission without
> selecting the "Don't show this again" option.
>
> Regards,
> Pierre-Yves Siret
>
>
>
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