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Tweaked uninstalling constraints and removed unused code blocks

This commit is contained in:
Robert Payne 2015-04-11 18:32:33 +12:00
parent ebe9bb1e8d
commit 2dec123ce0
1 changed files with 11 additions and 10 deletions
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21
Source/Constraint.swift
View File

@ -405,7 +405,7 @@ final public class Constraint {
self.installInfo!.layoutConstraints.addObject(layoutConstraint)
}
// store the layout constraints against the installed on view
// store the layout constraints against the layout from view
layoutFrom!.snp_installedLayoutConstraints += newLayoutConstraints
// return the new constraints
@ -414,16 +414,20 @@ final public class Constraint {
internal func uninstallFromView() {
if let installInfo = self.installInfo,
let installedOnView = installInfo.view,
let installedLayoutConstraints = installInfo.layoutConstraints.allObjects as? [LayoutConstraint] {
if installedLayoutConstraints.count > 0 {
// remove the constraints from the UIView's storage
installedOnView.removeConstraints(installedLayoutConstraints)
// remove the constraints from our associated object storage
installedOnView.snp_installedLayoutConstraints = installedOnView.snp_installedLayoutConstraints.filter {
return !contains(installedLayoutConstraints, $0)
if let installedOnView = installInfo.view {
// remove the constraints from the UIView's storage
installedOnView.removeConstraints(installedLayoutConstraints)
}
// remove the constraints from the from item view
if let fromView = self.fromItem.view {
fromView.snp_installedLayoutConstraints = fromView.snp_installedLayoutConstraints.filter {
return !contains(installedLayoutConstraints, $0)
}
}
}
@ -442,9 +446,6 @@ final public class Constraint {
private var offset: Any = Float(0.0)
private var installInfo: ConstraintInstallInfo?
private var installed: Bool {
return (self.installInfo != nil)
}
private func addConstraint(attributes: ConstraintAttributes) -> Constraint {
if self.relation == nil {