- Use longpress gesture to implement pannable tap gesture, e.g. slide between actions, select whichever one is below on touchup
- Remove swipe to dismiss, in line with System Action sheet
These method names were too similar to existing methods in PureLayout, which
have slightly different behavior.
ows_autoPinToSuperviewEdges uses left/right, whereas PureLayouts uses
leading/trailing
ows_autoPinToSuperviewMargins uses our own constraint adding logic, which
behaves differently in some cases.