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https://github.com/material-components/material-components-ios.git
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96fb533554
* [Catalog] Fixing bundle usage in some examples. * [Examples] Correcting use of assets and bundles. * [Examples] Formatting.
126 lines
4.0 KiB
Swift
126 lines
4.0 KiB
Swift
/*
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Copyright 2016-present the Material Components for iOS authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import UIKit
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import MaterialComponents.MaterialAppBar
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import MaterialComponents.MaterialPalettes
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import MaterialComponents.MaterialTabs
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class TabBarIconSwiftExample: UIViewController {
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// MARK: Properties
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var alignment: MDCTabBarAlignment {
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get {
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return tabBar.alignment
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}
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set(newAlignment) {
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tabBar.setAlignment(newAlignment, animated: true)
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}
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}
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lazy var alignmentButton: MDCRaisedButton = self.setupAlignmentButton()
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lazy var appBar: MDCAppBar = self.setupAppBar()
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lazy var scrollView: UIScrollView = self.setupScrollView()
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lazy var starPage: UIView = self.setupStarPage()
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lazy var tabBar: MDCTabBar = {
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let tabBar = MDCTabBar()
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tabBar.delegate = self
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tabBar.alignment = .centerSelected
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let bundle = Bundle(for: TabBarIconSwiftExample.self)
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let info = UIImage.init(named: "TabBarDemo_ic_info", in: bundle, compatibleWith:nil)
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let star = UIImage.init(named: "TabBarDemo_ic_star", in: bundle, compatibleWith:nil)
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tabBar.items = [UITabBarItem(title: "Info", image: info, tag:0),
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UITabBarItem(title: "Stars", image: star, tag:0)]
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tabBar.items[1].badgeValue = "1"
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let blue = MDCPalette.blue.tint500
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tabBar.tintColor = blue
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tabBar.inkColor = blue
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tabBar.barTintColor = UIColor.white
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tabBar.itemAppearance = .titledImages
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tabBar.selectedItemTintColor = UIColor.black.withAlphaComponent(0.87)
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tabBar.unselectedItemTintColor = UIColor.black.withAlphaComponent(0.38)
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return tabBar
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}()
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// MARK: Methods
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override func viewDidLoad() {
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super.viewDidLoad()
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setupExampleViews()
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alignmentButton.addTarget(self,
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action:#selector(changeAlignmentDidTouch(sender:)),
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for: .touchUpInside)
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}
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@objc func changeAlignmentDidTouch(sender: UIButton) {
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let sheet = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
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sheet.addAction(UIAlertAction(title: "Leading", style: .default, handler: { _ in
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self.alignment = .leading
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}))
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sheet.addAction(UIAlertAction(title: "Center", style: .default, handler: { _ in
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self.alignment = .center
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}))
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sheet.addAction(UIAlertAction(title: "Justified", style: .default, handler: { _ in
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self.alignment = .justified
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}))
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sheet.addAction(UIAlertAction(title: "Selected Center", style: .default, handler: { _ in
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self.alignment = .centerSelected
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}))
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present(sheet, animated: true, completion:nil)
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}
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func incrementStarBadge() {
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let starItem = tabBar.items[1]
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guard let badgeValue = starItem.badgeValue,
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let badgeNumber = Int(badgeValue), badgeNumber > 0 else {
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return
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}
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starItem.badgeValue = NumberFormatter.localizedString(from:(badgeNumber + 1) as NSNumber,
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number: .none)
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}
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// MARK: Action
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@objc func incrementDidTouch(sender: UIBarButtonItem) { incrementStarBadge()
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addStar(centered: false)
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}
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}
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// MARK: Tab Bar delegate
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extension TabBarIconSwiftExample: MDCTabBarDelegate {
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func tabBar(_ tabBar: MDCTabBar, didSelect item: UITabBarItem) {
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guard let index = tabBar.items.index(of: item) else {
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fatalError("MDCTabBarDelegate given selected item not found in tabBar.items")
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}
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scrollView.setContentOffset(CGPoint(x: CGFloat(index) * view.bounds.width, y: 0),
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animated: true)
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}
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}
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