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Beefed up demo view controller
Added a UIBarButtonItem with an Action, and show how to observe ongoing actions executing from multiple UI items
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‎Demo/Demo/Base.lproj/Main.storyboard‎

Lines changed: 43 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -1,41 +1,78 @@
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="9059" systemVersion="15B42" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
2+
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="9060" systemVersion="14F1021" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="gBp-2p-Zj2">
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<dependencies>
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<deployment identifier="iOS"/>
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<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="9049"/>
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<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="9051"/>
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</dependencies>
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<scenes>
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<!--View Controller-->
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<!--Navigation Controller-->
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<scene sceneID="MwZ-pf-NHd">
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<objects>
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<navigationController id="gBp-2p-Zj2" sceneMemberID="viewController">
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<extendedEdge key="edgesForExtendedLayout"/>
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<navigationBar key="navigationBar" contentMode="scaleToFill" id="7rg-kL-XY8">
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<rect key="frame" x="0.0" y="0.0" width="320" height="44"/>
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<autoresizingMask key="autoresizingMask"/>
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</navigationBar>
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<connections>
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<segue destination="BYZ-38-t0r" kind="relationship" relationship="rootViewController" id="dJY-Br-IiE"/>
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</connections>
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</navigationController>
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<placeholder placeholderIdentifier="IBFirstResponder" id="nxZ-xO-ip6" userLabel="First Responder" sceneMemberID="firstResponder"/>
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</objects>
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<point key="canvasLocation" x="-112" y="408"/>
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</scene>
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<!--Action demo-->
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<scene sceneID="tne-QT-ifu">
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<objects>
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<viewController id="BYZ-38-t0r" customClass="ViewController" customModule="Demo" customModuleProvider="target" sceneMemberID="viewController">
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<viewController title="Action demo" id="BYZ-38-t0r" customClass="ViewController" customModule="Demo" customModuleProvider="target" sceneMemberID="viewController">
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<layoutGuides>
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<viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
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<viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
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</layoutGuides>
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<view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
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<rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
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<rect key="frame" x="0.0" y="64" width="600" height="536"/>
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<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
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<subviews>
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<button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="SZL-3G-VZh">
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<rect key="frame" x="277" y="51" width="46" height="30"/>
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<rect key="frame" x="277" y="31" width="46" height="30"/>
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<animations/>
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<state key="normal" title="Button"/>
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</button>
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<activityIndicatorView hidden="YES" opaque="NO" contentMode="scaleToFill" horizontalHuggingPriority="750" verticalHuggingPriority="750" hidesWhenStopped="YES" style="gray" translatesAutoresizingMaskIntoConstraints="NO" id="OrY-7C-i77">
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<rect key="frame" x="290" y="258" width="20" height="20"/>
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</activityIndicatorView>
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<label hidden="YES" opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Doing some work" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="ulN-2s-mAd">
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<rect key="frame" x="234" y="229" width="133" height="21"/>
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<fontDescription key="fontDescription" type="system" pointSize="17"/>
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<color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
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<nil key="highlightedColor"/>
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</label>
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</subviews>
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<animations/>
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<color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
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<constraints>
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<constraint firstItem="OrY-7C-i77" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" id="Dyl-A6-bud"/>
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<constraint firstItem="OrY-7C-i77" firstAttribute="centerY" secondItem="8bC-Xf-vdC" secondAttribute="centerY" id="KWX-Rs-PVL"/>
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<constraint firstItem="SZL-3G-VZh" firstAttribute="top" secondItem="y3c-jy-aDJ" secondAttribute="bottom" constant="31" id="Np0-fa-c3f"/>
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<constraint firstItem="ulN-2s-mAd" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" id="a5T-qt-gDR"/>
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<constraint firstItem="OrY-7C-i77" firstAttribute="top" secondItem="ulN-2s-mAd" secondAttribute="bottom" constant="8" id="eqf-Tp-OJd"/>
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<constraint firstItem="SZL-3G-VZh" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" id="hb0-j9-0rK"/>
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</constraints>
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</view>
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<extendedEdge key="edgesForExtendedLayout"/>
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<navigationItem key="navigationItem" title="Action demo" id="6DL-Fh-JcF">
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<barButtonItem key="rightBarButtonItem" title="Bar Item" id="7hK-lr-Izl"/>
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</navigationItem>
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<connections>
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<outlet property="activityIndicator" destination="OrY-7C-i77" id="VCS-wT-Lb8"/>
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<outlet property="button" destination="SZL-3G-VZh" id="IT1-GJ-Qic"/>
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<outlet property="workingLabel" destination="ulN-2s-mAd" id="17Y-xo-0lM"/>
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</connections>
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</viewController>
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<placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
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</objects>
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<point key="canvasLocation" x="648" y="408"/>
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</scene>
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</scenes>
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</document>

‎Demo/Demo/ViewController.swift‎

Lines changed: 35 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -8,14 +8,20 @@
88

99
import UIKit
1010
import RxSwift
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import RxCocoa
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import Action
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1314
class ViewController: UIViewController {
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@IBOutlet weak var button: UIButton!
16+
@IBOutlet weak var workingLabel: UILabel!
17+
@IBOutlet weak var activityIndicator: UIActivityIndicatorView!
18+
19+
var disposableBag = DisposeBag()
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1621
override func viewDidLoad() {
1722
super.viewDidLoad()
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24+
// Demo: add an action to a button in the view
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let action = CocoaAction { _ in
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return create { observer -> Disposable in
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// Do whatever work here.
@@ -24,9 +30,36 @@ class ViewController: UIViewController {
2430
return NopDisposable.instance
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}
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}
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button.rx_action = action
34+
35+
// Demo: add an action to a UIBarButtonItem in the navigation item
36+
self.navigationItem.rightBarButtonItem!.rx_action = CocoaAction {
37+
print("Bar button item was pressed, simulating a 2 second action")
38+
return empty().delaySubscription(1, MainScheduler.sharedInstance)
39+
}
40+
41+
// Demo: obseve the output of both actions, spin an activity indicator
42+
// while performing the work
43+
combineLatest(
44+
button.rx_action!.executing,
45+
self.navigationItem.rightBarButtonItem!.rx_action!.executing) {
46+
// we combine two boolean observable and output one boolean
47+
a,b in
48+
return a || b
49+
}
50+
.distinctUntilChanged()
51+
.subscribeNext {
52+
// every time the execution status changes, spin an activity indicator
53+
[weak self] executing in
54+
self?.workingLabel.hidden = !executing
55+
if (executing) {
56+
self?.activityIndicator.startAnimating()
57+
}
58+
else {
59+
self?.activityIndicator.stopAnimating()
60+
}
61+
}
62+
.addDisposableTo(self.disposableBag)
2963
}
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3164
}
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