61 lines
2.2 KiB
Swift
61 lines
2.2 KiB
Swift
//
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// UIView+Extensions.swift
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//
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// Copyright (c) 2016 Touch Instinct
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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import UIKit
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extension UIView {
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func addSubviewCentered(view: UIView) {
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var viewFrame = view.frame
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viewFrame.origin.x = (frame.width - viewFrame.width) / 2
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viewFrame.origin.y = (frame.height - viewFrame.height) / 2
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view.frame = viewFrame
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view.autoresizingMask = [.flexibleLeftMargin, .flexibleTopMargin]
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addSubview(view)
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}
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class var onePixelInPoints: CGFloat {
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return 1.0 / UIScreen.main.scale
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}
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var allSubviews: [UIView] {
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let allSubviews = subviews + subviews.flatMap { $0.allSubviews }
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return allSubviews
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}
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func viewFromSelfDescribingNib() -> UIView? {
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let bundle = Bundle(for: type(of: self))
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let nib = UINib(nibName: String(describing: type(of: self)), bundle: bundle)
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guard let view = nib.instantiate(withOwner: self, options: nil).first as? UIView else {
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return nil
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}
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view.frame = bounds
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view.autoresizingMask = [.flexibleWidth, .flexibleHeight]
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return view
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}
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}
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