ImpressionKit

How to use ImpressionKit

Main APIs

// UIKitUIView().detectImpression{(view, state)inif state.isImpressed{print("This view is impressed to users.")}}// SwiftUIColor.red.detectImpression{ stateinif state.isImpressed{print("This view is impressed to users.")}}

// UIKitvargroup=ImpressionGroup.init{(_, index:IndexPath, view, state)inif state.isImpressed{print("impressed index:\(index.row)")}}...func collectionView(_ collectionView:UICollectionView, cellForItemAt indexPath:IndexPath)->UICollectionViewCell{letcell= collectionView.dequeueReusableCell(withReuseIdentifier:"Cell", for: indexPath)as!Cellself.group.bind(view: cell, index: indexPath)return cell}// SwiftUIvargroup=ImpressionGroup.init{(_, index:Int, _, state)inif state.isImpressed{print("impressed index:\(index)")}}varbody:someView{List(0..<100){ indexinCellView(index: index).frame(height:100).detectImpression(group: group, index: index)}}

More APIs

UIView.detectionInterval=0.1  // apply to all viewsUIView().detectionInterval=0.1    // apply to the specific view. `UIView.detectionInterval` will be used if it's nil.ImpressionGroup().detectionInterval=0.1   // apply to the group. `UIView.detectionInterval` will be used if it's nil.

UIView.durationThreshold=2  // apply to all viewsUIView().durationThreshold=2    // apply to the specific view. `UIView.durationThreshold` will be used if it's nil.ImpressionGroup().durationThreshold=2   // apply to the group. `UIView.durationThreshold` will be used if it's nil.

UIView.areaRatioThreshold=0.4  // apply to all viewsUIView().areaRatioThreshold=0.4    // apply to the specific view. `UIView.areaRatioThreshold` will be used if it's nil.ImpressionGroup().areaRatioThreshold=0.4   // apply to the group. `UIView.areaRatioThreshold` will be used if it's nil.

UIView.alphaThreshold=0.4  // apply to all viewsUIView().alphaThreshold=0.4    // apply to the specific view. `UIView.alphaThreshold` will be used if it's nil.ImpressionGroup().alphaThreshold=0.4   // apply to the group. `UIView.alphaThreshold` will be used if it's nil.

// Retrigger the impression event when a view left from the screen (The UIViewController (page) is still here, Just the view is out of the screen).publicstaticletleftScreen=Redetect(rawValue:1 <<0)// Retrigger the impression event when the UIViewController of the view disappear.publicstaticletviewControllerDidDisappear=Redetect(rawValue:1 <<1)// Retrigger the impression event when the App did enter background.publicstaticletdidEnterBackground=Redetect(rawValue:1 <<2)// Retrigger the impression event when the App will resign active.publicstaticletwillResignActive=Redetect(rawValue:1 <<3)

UIView.redetectOptions=[.leftScreen,.viewControllerDidDisappear,.didEnterBackground,.willResignActive]  // apply to all viewsUIView().redetectOptions=[.leftScreen,.viewControllerDidDisappear,.didEnterBackground,.willResignActive]    // apply to the specific view. `UIView.redetectOptions` will be used if it's nil.ImpressionGroup().redetectOptions=[.leftScreen,.viewControllerDidDisappear,.didEnterBackground,.willResignActive]   // apply to the group. `UIView.redetectOptions` will be used if it's nil.

How to integrate ImpressionKit

pod 'ImpressionKit'

Requirements