added iOS source code

[wl-app.git] / iOS / WolneLektury / Controls / ActivityIndicatorButton.swift

diff --git a/iOS/WolneLektury/Controls/ActivityIndicatorButton.swift b/iOS/WolneLektury/Controls/ActivityIndicatorButton.swift
new file mode 100644 (file)
index 0000000..65fe2fb
--- /dev/null
+++ b/iOS/WolneLektury/Controls/ActivityIndicatorButton.swift
@@ -0,0 +1,61 @@
+//
+//  ActivityIndicatorButton.swift
+//  WolneLektury
+//
+//  Created by Pawel Dabrowski on 12/06/2018.
+//  Copyright © 2018 Fundacja Nowoczesna Polska. All rights reserved.
+//
+
+import UIKit
+
+enum ActivityIndicatorButtonState{
+    case loading
+    case button
+    case hidden
+}
+
+class ActivityIndicatorButton: UIButton {
+
+    private var indicatorButtonState: ActivityIndicatorButtonState = .loading
+    
+    private var activityIndicatorView: UIActivityIndicatorView!
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+        customInit()
+    }
+    
+    required init?(coder aDecoder: NSCoder) {
+        super.init(coder: aDecoder)
+        customInit()
+    }
+    
+    func customInit() {
+        activityIndicatorView = UIActivityIndicatorView(activityIndicatorStyle: .whiteLarge)
+        activityIndicatorView.hidesWhenStopped = true
+        activityIndicatorView.tintColor = tintColor
+        activityIndicatorView.color = tintColor
+
+        activityIndicatorView.translatesAutoresizingMaskIntoConstraints = false
+        self.addSubview(activityIndicatorView)
+        activityIndicatorView.centerInSuperview()
+        setIndicatorButtonState(state: .loading)
+        titleLabel?.text = ""
+    }
+    
+    func setIndicatorButtonState(state: ActivityIndicatorButtonState){
+        indicatorButtonState = state
+        
+        switch state {
+        case .loading:
+            isHidden = false
+            activityIndicatorView.startAnimating()
+            setImage(nil, for: .normal)
+        case .button:
+            isHidden = false
+            activityIndicatorView.stopAnimating()
+            setImage(#imageLiteral(resourceName: "ic_reload"), for: .normal)
+        case .hidden:
+            isHidden = true
+        }
+    }
+}