Color of staus- and navigationbar on android

Luffy97

Hello everyone,

I am new to this forum and recently started learning Qt. I am working on an app for andriod to learn the mechanics. Unfortunately, I couldn't find a way to change the color of the status- and navigationbar while the app is being used on the andriod device.

I found out that before there was a way with
"QtAndroid::runOnAndroidThread" but I think it was replaced by :

"QAndroidApplication::runOnAndroidMainThread(const std::function<QVariant ()> &runnable, const QDeadlineTimer timeout = QDeadlineTimer::Forever)" .

Unfortunately I have not found any examples for the use of this code on the internet (only the explanation here https://doc-snapshots.qt.io/qt6-dev/qnativeinterface-qandroidapplication.html#runOnAndroidMainThread) and I would be especially interested in the use to change the color of the status- and navigationbar. I have no idea where to put the code and how to change the color of the bars with it.

I would appreciate any help on this.
Have a nice weekend.

Luffy97

@Luffy97

Has no one any ideas? If there is any other way to change those colors, I would also appreciate hearing about them.

Best regards

piervalli

This post is deleted!

lemons

@Luffy97 check out this repository:
https://github.com/jpnurmi/qtstatusbar/

Flaming Moe

As far as I see and as far as I know the Notification Example, it does not extend QtActivity.
It uses a static java method which is also the key, why that example is rather simple and not a gate to solve all problems. Some things can´t be called from a static context. I experienced that with getWindow() on my journey to set the FLAG_SHOW_WHEN_LOCKED. I also tried a singelton pattern to access non-static methods from a static context, which also doesn´t work for my goal.

Using non static methods requires to create an instance of that java class and when that class extends QtActivity I found things to become tricky by resulting in a problem "that it can´t be called from the worker thread, but has to be in the GUI thread" -> That is dangerous half-knowledge I´m posting which relates to my recent problems and googling activities the last days.

Furthermore it might be important, if we´re talking about Qt6 or 5.
As far as I understood it, QT6 isn´t fully featured yet and in it´s current most upto-date version 6.6 still missing "androidextras" - so probably some feature known from Qt5 are not available yet.
https://doc.qt.io/qt-6/whatsnewqt6.html

Luffy97

@lemons thanks for the info. I think I already saw this one. The problem is, qt6 only allowed me the cmake build with qt quick application.

This example on github uses qmake. Is their any equivalent code for cmake builds?

Flaming Moe

@Luffy97 Since I think a three days Qt6.6 is out. I don´t know on which version you´re running, before 6.6 I updated from 6.3 to 6.5 which at least gave me Bluetooth access on Android :)
I used the Qt maintenance tool to do that.

Luffy97

@Luffy97 I'm still using Qt6.5, but the problem is many solutions to general problems like my problem is mostly written in qmake, and since Qt6 started to focus on cmake, it is very difficult to find applicable code on the internet.