Popup

When you open a popup , you want to be able to change the selection without taking your finger off the screen (i.e. just by dragging your finger to the option you want). I recently started tracking my spendings with a budget book app called Splid . This app has not implemented this small, yet important feature. I tried to capture this in this gif. I select an option, swipe my finger up and down and try to select another option. Only when I release my finger can I select the second option.