I realise this has been asked countless times, but I'm still slightly unsure about this topic.
After reading the tutorial on multiple screen sizes I got the impression to support the largest aspect ratio 16:9. Is this right (in relation to mobile devices, tablets etc) and does the resolution particularly matter in relation to this? I.e. should I design in a 16:9 ratio and the highest possible resolution supported by these platforms?
Also, I was wondering the effect of a horizontal layout compared to a vertical layout when looking at aspect ratios, resolutions etc.
I hope this post sort of makes sense and thanks for reading :)