Color of the navigation bar on Android 10

Francky033

Hi !,

On Android 10, the navigation bar always appears in white (here, I've highlighted it in grey to make it more visible.)!

How can I change the color of this bar?

I tried to add these lines to the res/libs.xml file

and I added the option <activity android:theme="@style/MyTheme" to the activity line in AndroidManifest.xml but it doesn't work...

With my thanks,

Franck

Francky033

I've made some modifications:

I created a /res/styles.xml file containing :

<?xml version='1.0' encoding='utf-8'?>
<resources>
<style name="MyTheme" parent="android:Theme.Material">
<item name="android:navigationBarColor">#FFFF0000</item>
<item name="android:windowBackground">#FFFF0000</item>
</style>
</resources>

and I refer to this style in the AndroidManifest.xml as follows:

<android application:theme="@style/MyTheme" ...

At startup, the navigation bar and the background are red, but 1 second later, the navigation bar becomes white again. I'm testing on a Samsung A10 running Android 10 and UI2

Thanks !

Louiss97

@Francky033 said in Color of the navigation bar on Android 10:

I've made some modifications:
I created a /res/styles.xml file containing :
<?xml version='1.0' encoding='utf-8'?>
<resources>
<style name="MyTheme" parent="android:Theme.Material">
<item name="android:navigationBarColor">#FFFF0000</item>
<item name="android:windowBackground">#FFFF0000</item>
</style>
</resources>
and I refer to this style in the AndroidManifest.xml as follows:
<android application:theme="@style/MyTheme" ...
At startup, the navigation bar and the background are red, but 1 second later, the navigation bar becomes white again. I'm testing on a Samsung A10 running Android 10 and UI2
Thanks !

Has your problem been solved yet?

Francky033

No. the changes have no effect. The bar always appears white !

mmjvox

#ifdef Q_OS_ANDROID

                QtAndroid::runOnAndroidThread([=]()
                {
                    QAndroidJniObject window = QtAndroid::androidActivity().callObjectMethod("getWindow", "()Landroid/view/Window;");
                    window.callMethod<void>("addFlags", "(I)V", 0x80000000);
                    window.callMethod<void>("clearFlags", "(I)V", 0x04000000);
                    window.callMethod<void>("setStatusBarColor", "(I)V", 0xfffce03f); // Desired statusbar color
                    QAndroidJniObject decorView = window.callObjectMethod("getDecorView", "()Landroid/view/View;");
                        decorView.callMethod<void>("setSystemUiVisibility", "(I)V", 0x00002000);
                });


#endif

I don't remember exactly but may be needed:

#include <QAndroidJniEnvironment>
#include <QtAndroid>
#include <QAndroidJniObject>

Francky033

Fantastic mmjvox !!!!

You saved my day!!!!!