28 lines
1.3 KiB
Swift
28 lines
1.3 KiB
Swift
public extension UIView {
|
|
func wmf_hasRequiredNonZeroHeightConstraint() -> Bool {
|
|
let requiredHeightConstraint = constraints.first(where: {constraint in
|
|
guard
|
|
type(of: constraint) == NSLayoutConstraint.self,
|
|
constraint.firstAttribute == .height,
|
|
constraint.priority == UILayoutPriority.required,
|
|
constraint.constant != 0
|
|
else {
|
|
return false
|
|
}
|
|
return true
|
|
})
|
|
return (requiredHeightConstraint != nil)
|
|
}
|
|
}
|
|
|
|
public extension UIStackView {
|
|
func wmf_firstArrangedSubviewWithRequiredNonZeroHeightConstraint() -> UIView? {
|
|
return arrangedSubviews.first(where: { arrangedSubview in
|
|
return arrangedSubview.wmf_hasRequiredNonZeroHeightConstraint()
|
|
})
|
|
}
|
|
func wmf_anArrangedSubviewHasRequiredNonZeroHeightConstraintAssertString() -> String {
|
|
return "\n\nAll stackview arrangedSubview height constraints need to have a priority of < 1000 so the stackview can collapse the 'cell' if the arrangedSubview's isHidden property is set to true. This arrangedSubview was determined to have a required height: \(String(describing: wmf_firstArrangedSubviewWithRequiredNonZeroHeightConstraint())). To fix reduce the priority of its height constraint to < 1000.\n\n"
|
|
}
|
|
}
|