-
Notifications
You must be signed in to change notification settings - Fork 0
/
MKLoadingButton.swift
145 lines (129 loc) · 4.58 KB
/
MKLoadingButton.swift
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
//
// MKLoadingButton.swift
// TODO
//
// Created by Максим Хюттюля on 16/07/2019.
// Copyright © 2019 Максим Хюттюля. All rights reserved.
//
import UIKit
@IBDesignable
class MKLoadingButton: UIButton {
private let gradient : CAGradientLayer = CAGradientLayer();
private let activityIndicator = UIActivityIndicatorView();
private var activityIndicatorStyle : UIActivityIndicatorView.Style = UIActivityIndicatorView.Style.whiteLarge;
private var buttonText : String? = "";
private var buttonImage : UIImage?;
@IBInspectable var cornerRadius : CGFloat = 0 {
didSet{
if (cornerRadius < 0){
cornerRadius = 0;
}
layer.cornerRadius = cornerRadius;
}
}
@IBInspectable var borderWidth : CGFloat = 0.0 {
didSet{
if (borderWidth < 0){
borderWidth = 0.0;
}
layer.borderWidth = borderWidth;
}
}
@IBInspectable var borderColor : UIColor = UIColor.black {
didSet{
layer.borderColor = borderColor.cgColor;
}
}
@IBInspectable var enableGradient : Bool = false {
didSet {
setupBackgroundColor();
}
}
@IBInspectable var firstColor : UIColor = UIColor.white {
didSet{
setupBackgroundColor();
}
}
@IBInspectable var secondColor : UIColor = UIColor.black {
didSet{
setupBackgroundColor();
}
}
@IBInspectable var isVerticalGradient : Bool = false {
didSet{
setupBackgroundColor();
}
}
@IBInspectable var indicatorColor : UIColor = UIColor.orange {
didSet {
setupActivityIndicator();
}
}
@IBInspectable var largeSizeIndicator : Bool = false {
didSet {
if largeSizeIndicator {
activityIndicatorStyle = UIActivityIndicatorView.Style.whiteLarge;
}else{
activityIndicatorStyle = UIActivityIndicatorView.Style.white;
}
}
}
@IBInspectable var isSpinning : Bool = false {
didSet{
if isSpinning {
buttonImage = self.imageView?.image;
buttonText = self.titleLabel?.text;
self.setTitle("", for: State.normal);
self.setImage(UIImage(), for: State.normal);
activityIndicator.translatesAutoresizingMaskIntoConstraints = false;
self.addSubview(activityIndicator);
let xCenterConstraint = NSLayoutConstraint(item: self, attribute: .centerX, relatedBy: .equal, toItem: activityIndicator, attribute: .centerX, multiplier: 1, constant: 0);
let yCenterConstraint = NSLayoutConstraint(item: self, attribute: .centerY, relatedBy: .equal, toItem: activityIndicator, attribute: .centerY, multiplier: 1, constant: 0)
self.addConstraint(xCenterConstraint);
self.addConstraint(yCenterConstraint);
activityIndicator.startAnimating()
}
else {
self.setTitle(buttonText, for: .normal);
self.setImage(buttonImage, for: State.normal);
activityIndicator.stopAnimating();
}
}
}
override init(frame: CGRect) {
super.init(frame: frame);
setupButton();
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder);
setupButton();
}
private func setupButton(){
setupBackgroundColor();
setupActivityIndicator();
if let imageView = self.imageView {
self.bringSubviewToFront(imageView);
}
}
private func setupBackgroundColor(){
gradient.removeFromSuperlayer();
if enableGradient {
gradient.cornerRadius = self.cornerRadius;
gradient.frame = bounds;
gradient.colors = [firstColor.cgColor, secondColor.cgColor];
if (isVerticalGradient){
gradient.startPoint = CGPoint(x: 0.5, y: 0)
gradient.endPoint = CGPoint(x: 0.5, y: 1)
}else{
gradient.startPoint = CGPoint(x: 0, y: 0.5)
gradient.endPoint = CGPoint(x: 1, y: 0.5)
}
self.layer.insertSublayer(gradient, at: 0);
}
}
private func setupActivityIndicator(){
activityIndicator.hidesWhenStopped = true;
activityIndicator.color = indicatorColor;
activityIndicator.style = activityIndicatorStyle;
}
}