Create custom RoundedButton.

2026-04-22 01:22:46 +02:00 · 2020-04-28 16:33:46 +02:00
parent af0f0b621d
commit 406c0e14a3
1 changed files with 85 additions and 0 deletions
@@ -0,0 +1,85 @@
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import UIKit
+
+final class RoundedButton: UIButton, Themable {
+    
+    // MARK: - Constants
+    
+    private enum Constants {
+        static let backgroundColorAlpha: CGFloat = 0.2
+        static let cornerRadius: CGFloat = 6.0
+        static let fontSize: CGFloat = 17.0
+    }
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+    
+    private var theme: Theme?
+    
+    // MARK: Public
+    
+    var actionStyle: UIAlertAction.Style = .default {
+        didSet {
+            self.updateButtonStyle()
+        }
+    }
+    
+    // MARK: - Life cycle
+    
+    override func awakeFromNib() {
+        super.awakeFromNib()
+        
+        self.layer.masksToBounds = true
+        self.titleLabel?.font = UIFont.systemFont(ofSize: Constants.fontSize)
+        self.update(theme: ThemeService.shared().theme)
+    }
+    
+    override func layoutSubviews() {
+        super.layoutSubviews()
+        
+        self.layer.cornerRadius = Constants.cornerRadius
+    }
+    
+    // MARK: - Private
+    
+    private func updateButtonStyle() {
+        guard let theme = theme else {
+            return
+        }
+        
+        let backgroundColor: UIColor
+        
+        switch self.actionStyle {
+        case .default:
+            backgroundColor = theme.tintColor
+        default:
+            backgroundColor = theme.noticeColor
+        }
+        
+        self.vc_setBackgroundColor(backgroundColor.withAlphaComponent(Constants.backgroundColorAlpha), for: .normal)
+        self.setTitleColor(backgroundColor, for: .normal)
+    }
+    
+    // MARK: - Themable
+    
+    func update(theme: Theme) {
+        self.theme = theme
+        self.updateButtonStyle()
+    }
+}