Recordings: Choose app instead of custom title

main/Recordings/App Icons/BundleIcon.swift

@@ -0,0 +1,106 @@
+import UIKit
+
+extension CGContext {
+	func lineFromTo(x1: CGFloat, y1: CGFloat, x2: CGFloat, y2: CGFloat) {
+		self.move(to: CGPoint(x: x1, y: y1))
+		self.addLine(to: CGPoint(x: x2, y: y2))
+	}
+}
+
+struct BundleIcon {
+	
+	static let unknown : UIImage? = {
+		let rect = CGRect(x: 0, y: 0, width: 30, height: 30)
+		UIGraphicsBeginImageContextWithOptions(rect.size, false, 0.0)
+		
+		let context = UIGraphicsGetCurrentContext()!
+		let lineWidth: CGFloat = 0.5
+		let corner: CGFloat = 6.75
+		let c = corner / CGFloat.pi + lineWidth/2
+		let sz: CGFloat = rect.height
+		let m = sz / 2
+		let r1 = 0.2 * sz, r2 = sqrt(2 * r1 * r1)
+		
+		// diagonal
+		context.lineFromTo(x1: c, y1: c, x2: sz-c, y2: sz-c)
+		context.lineFromTo(x1: c, y1: sz-c, x2: sz-c, y2: c)
+		// horizontal
+		context.lineFromTo(x1: 0, y1: m, x2: sz, y2: m)
+		context.lineFromTo(x1: 0, y1: m + r1, x2: sz, y2: m + r1)
+		context.lineFromTo(x1: 0, y1: m - r1, x2: sz, y2: m - r1)
+		// vertical
+		context.lineFromTo(x1: m, y1: 0, x2: m, y2: sz)
+		context.lineFromTo(x1: m + r1, y1: 0, x2: m + r1, y2: sz)
+		context.lineFromTo(x1: m - r1, y1: 0, x2: m - r1, y2: sz)
+		// circles
+		context.addEllipse(in: CGRect(x: m - r1, y: m - r1, width: 2*r1, height: 2*r1))
+		context.addEllipse(in: CGRect(x: m - r2, y: m - r2, width: 2*r2, height: 2*r2))
+		let r3 = CGRect(x: c, y: c, width: sz - 2*c, height: sz - 2*c)
+		context.addEllipse(in: r3)
+		context.addRect(r3)
+		
+		UIColor.clear.setFill()
+		UIColor.gray.setStroke()
+		let rounded = UIBezierPath(roundedRect: rect.insetBy(dx: lineWidth/2, dy: lineWidth/2), cornerRadius: corner)
+		rounded.lineWidth = lineWidth
+		rounded.stroke()
+		
+		let img = UIGraphicsGetImageFromCurrentImageContext()
+		UIGraphicsEndImageContext()
+		return img
+	}()
+	
+	private static let apple : UIImage? = {
+		let rect = CGRect(x: 0, y: 0, width: 30, height: 30)
+		UIGraphicsBeginImageContextWithOptions(rect.size, false, 0.0)
+		
+	//	#colorLiteral(red: 0.5843137503, green: 0.8235294223, blue: 0.4196078479, alpha: 1).setFill()
+	//	UIBezierPath(roundedRect: rect, cornerRadius: 0).fill()
+	//	print("drawing")
+		let fs = 36 as CGFloat
+		let hFont = UIFont.systemFont(ofSize: fs)
+		var attrib = [
+			NSAttributedString.Key.font: hFont,
+			NSAttributedString.Key.foregroundColor: UIColor.gray
+		]
+		
+		let str = "" as NSString
+		let actualHeight = str.size(withAttributes: attrib).height
+		attrib[NSAttributedString.Key.font] = hFont.withSize(fs * fs / actualHeight)
+		
+		let strW = str.size(withAttributes: attrib).width
+		str.draw(at: CGPoint(x: (rect.size.width - strW) / 2.0, y: -3), withAttributes: attrib)
+		
+		let img = UIGraphicsGetImageFromCurrentImageContext()
+		UIGraphicsEndImageContext()
+		return img
+	}()
+	
+	private static let cacheDir = URL.documentDir().appendingPathComponent("app-store-search-cache", isDirectory:true)
+	
+	private static func local(_ bundleId: String) -> URL {
+		cacheDir.appendingPathComponent("\(bundleId).img")
+	}
+	
+	static func initCache() {
+		try? FileManager.default.createDirectory(at: cacheDir, withIntermediateDirectories: true, attributes: nil)
+	}
+	
+	static func image(_ bundleId: String?, ifNotStored: (() -> Void)? = nil) -> UIImage? {
+		guard let appId = bundleId else {
+			return unknown
+		}
+		guard let data = try? Data(contentsOf: local(appId)),
+			let img = UIImage(data: data, scale: 2.0) else {
+			ifNotStored?()
+			return appId.hasPrefix("com.apple.") ? apple : unknown
+		}
+		return img
+	}
+
+	static func download(_ bundleId: String, urlStr: String, whenDone: @escaping () -> Void) {
+		if let url = URL(string: urlStr) {
+			url.download(to: local(bundleId), onSuccess: whenDone)
+		}
+	}
+}