-
Notifications
You must be signed in to change notification settings - Fork 1
/
UIApplication+NetworkActivity.swift
70 lines (63 loc) · 2.98 KB
/
UIApplication+NetworkActivity.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
// Snippets UIApplication+NetworkActivity.swift
//
// Copyright © 2016, Roy Ratcliffe, Pioneering Software, United Kingdom
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the “Software”), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS,” WITHOUT WARRANTY OF ANY KIND, EITHER
// EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO
// EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
// OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
//------------------------------------------------------------------------------
import UIKit
extension UIApplication {
struct NetworkActivity {
static var indicatorVisibility: UInt8 = 0
}
/// Indicator visibility is an integer. The indicator becomes visible when the
/// level increments from zero to one; invisible when it decrements from one
/// to zero. All other transitions do nothing. Do not directly set the
/// indicator visibility; instead, use the show and hide methods.
public private(set) var networkActivityIndicatorVisibility: Int {
get {
return (objc_getAssociatedObject(self, &UIApplication.NetworkActivity.indicatorVisibility) as? NSNumber ?? NSNumber(integerLiteral: 0)).intValue
}
set {
objc_setAssociatedObject(self, &UIApplication.NetworkActivity.indicatorVisibility, NSNumber(integerLiteral: newValue), .OBJC_ASSOCIATION_COPY_NONATOMIC)
}
}
/// Increments the indicator visibility. Makes the indicator visible when the
/// visibility level transitions from zero to one.
///
/// Application property `isNetworkActivityIndicatorVisible` is true when the
/// app shows network activity using a spinning gear in the status bar; false
/// when not.
public func showNetworkActivityIndicator() {
let visibility = networkActivityIndicatorVisibility
networkActivityIndicatorVisibility = visibility + 1
if visibility == 0 {
isNetworkActivityIndicatorVisible = true
}
}
/// Makes the network activity indicator invisible when the visibility level
/// decrements from one to zero.
public func hideNetworkActivityIndicator() {
let visibility = networkActivityIndicatorVisibility
networkActivityIndicatorVisibility = visibility - 1
if visibility == 1 {
isNetworkActivityIndicatorVisible = false
}
}
}