In Android Studio previews you can specify a font-...

# compose-android

[Timo Drick]

In Android Studio previews you can specify a font-scaling factor to see if you UI works for different font sizes. But in the Settings (Display size and text) of actual Android devices beside the Font Size you can also change the Dsiplay Size. Which leads to different icon sizes. I just wondering if it is possible to emulate this changes in Compose to check in previews or testing if it all fits. I am not sure what this Display size change does.

[yschimke]

I think that second one mucks with the density.

[Timo Drick]

It looks like it only changes the size of icons. And most UIs do use vector graphics so the density will not change the size.

[yschimke]

That changes the device Dp

[Timo Drick]

So when i increase the size it will reduce the density and Dp right? So it emulates a physically bigger screen with lower pixel density.

[Timo Drick]

So if i want to make sure that the App still works. I could just reduce the size in Dp. (For testing)

[Timo Drick]

Maybe also reducing the density.

[Timo Drick]

Do anyone know what the maximal scale factor? Is it also 1.5f or maybe 2.0f

[yschimke]

There is a new setting in the Running Devices window. I think it tries to reproduce this range. https://cs.android.com/android-studio/platform/tools/adt/idea/+/mirror-goog-studio-m[…]roid/tools/idea/streaming/uisettings/ui/GoogleDensityRange.kt

[yschimke]

But maybe measuring on the device is simpler.

[Timo Drick]

Ok thank you very much for the information @yschimke