On 23/02/13 21:17, Dalius wrote: > Hi, all, > > I'm one of developers volunterring on one of Ubuntu Phone Core apps: > Calculator > > Here is our first demo: > http://www.youtube.com/watch?v=1Yb0blrXyN8 > > We would like to hear your opinions about what you see, what can be > improved (especially from design side as we are not designers) and etc.
Very nice! Here are a few comments in no particular order. As mentioned in the comments, the way the = sign works is likely to confuse people. I'm not sure renaming it M+ would reduce the confusion because users will be looking for an = sign. The fact that you can scroll back to see previous results is not easily discoverable as the animation that pushes the previous result up is rather fast. Some visual hint that you can scroll back through previous results would be good. Similarly, the fact that you can scroll the keyboard to get to more functions is not easily discoverable. The "syntax error" message is not very user friendly: it seems to appear when the expression is incomplete and you can't calculate a final result so maybe a special symbol (e.g. a question mark) for that case would work better? There are instances where the result is shown as "nan": non-technical users will not understand what this means. As this result occurs in cases of incomplete expression, it should be treated the same as above with the special "incomplete expression" symbol. Finally, I would render the C and backspace keys in different colours to highlight that they do something special compared to the others. And possibly move them to the right as this is where they tend to be on physical calculators (i.e. swap them with the parentheses). Cheers, Bruno -- Mailing list: https://launchpad.net/~ubuntu-phone Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-phone More help : https://help.launchpad.net/ListHelp
