9 Notes In Desember 2019
1. Int to String (Swift 4.2 to Swift 5.1) update
Source: https://www.hackingwithswift.com/example-code/language/how-to-convert-an-int-to-a-string
2. Ternary Conditional Operator
3. Tabbar Select and UnselectItem color
4. Get CMTime from QrCode Output
result is : print(cnTimeConvertString) // "88:51:53"
source: https://stackoverflow.com/questions/54662047/converting-cmtime-to-string-is-wrong-value-return
5. UIPopoverPresentationController in uicollectionviewcell swift 4 programmatically
Set popOver in your collectionviewcell, call your UIView file in here:
6. Pod install only one pod
- without updating existing repos
7. Avplayer inside tableview cell still playing when dismissing changing controller
Implement
VideoCell. Each time you find one, tell it to stop playing just as in the code you already have.
my answer in stackverflow: https://stackoverflow.com/a/59188546/8366535
8. Remove subString in array Swift 5.1
Example:
9. Add line break to 'git commit -m' from the command line (Multiple Line)
Try to running in my terminal:
// Swift 4.2 and old
String(describing: Int()) // OR // "\(Int)"
// Swift 5.1 Update
String(Int()) // OR // "\(Int)"
Source: https://www.hackingwithswift.com/example-code/language/how-to-convert-an-int-to-a-string
2. Ternary Conditional Operator
// Use If Else
if question {
answer1
} else {
answer2
}
// Use Tenary
hasTrue ? answer1 : answer2
source: https://docs.swift.org/swift-book/LanguageGuide/BasicOperators.html#ID713. Tabbar Select and UnselectItem color
//use this in viewDidLoad or u can set in Appdelegate
UITabBar.appearance().barTintColor = .mineShaft
UITabBar.appearance().unselectedItemTintColor = .lightGray
UITabBar.appearance().tintColor = UIColor.white
//If U in UITabbarController
tabBar.barTintColor = .black
tabBar.unselectedItemTintColor = .lightGray
tabBar.tintColor = .white
//and if in view contoller use like this (tabbarController?.tabBar...)
4. Get CMTime from QrCode Output
//MARK: Output
func metadataOutput(_ output: AVCaptureMetadataOutput, didOutput metadataObjects: [AVMetadataObject], from connection: AVCaptureConnection) {
captureSession.stopRunning()
if let metadataObject = metadataObjects.first {
guard let readableObject = metadataObject as? AVMetadataMachineReadableCodeObject else { return }
guard let stringValue = readableObject.stringValue else { return }
let cnTimeConvertString = "\(CMTime(value: readableObject.time.value, timescale: 1000000000).positionalTime)"
print(cnTimeConvertString) // "88:51:53"
}
}
}
extension CMTime {
var roundedSeconds: TimeInterval {
return seconds.rounded()
}
var hours: Int { return Int(roundedSeconds / 3600) }
var minute: Int { return Int(roundedSeconds.truncatingRemainder(dividingBy: 3600) / 60) }
var second: Int { return Int(roundedSeconds.truncatingRemainder(dividingBy: 60)) }
var positionalTime: String {
return hours > 0 ?
String(format: "%d:%02d:%02d",
hours, minute, second) :
String(format: "%02d:%02d",
minute, second)
}
}
result is : print(cnTimeConvertString) // "88:51:53"
source: https://stackoverflow.com/questions/54662047/converting-cmtime-to-string-is-wrong-value-return
5. UIPopoverPresentationController in uicollectionviewcell swift 4 programmatically
Set popOver in your collectionviewcell, call your UIView file in here:
import UIKit
class PageCollectionViewCell: UICollectionViewCell, UIPopoverPresentationControllerDelegate {
static let cellId = "PageCollectionViewCell"
@IBOutlet weak var imageView: UIImageView!
var didSendSticker: (()-> Void)?
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
let tap = UITapGestureRecognizer(target: self, action: #selector(handleSticker(sender:)))
self.isUserInteractionEnabled = true
self.addGestureRecognizer(tap)
}
@objc func handleSticker(sender: UITapGestureRecognizer) {
let vc = ReviewStickerViewController()
vc.image = imageView.image
vc.modalPresentationStyle = .popover
vc.preferredContentSize = CGSize(width: 140, height: 180)
let popOver = vc.popoverPresentationController
popOver?.sourceView = sender.view
popOver?.sourceRect = CGRect(x: (sender.view?.bounds.minX)! + (sender.view?.bounds.width)! / 5, y: (sender.view?.bounds.minY)!, width: 50, height: 50)
popOver?.permittedArrowDirections = UIPopoverArrowDirection.any
vc.popoverPresentationController?.delegate = self
vc.didSendSticker = {
self.didSendSticker?()
}
self.window?.rootViewController?.present(vc, animated: true, completion: nil)
}
func adaptivePresentationStyle(for controller: UIPresentationController) -> UIModalPresentationStyle {
return UIModalPresentationStyle.none
}
}
for present navigation user ''self.window?.rootViewController?.present", because if use normal navigation "present " it makes error your code6. Pod install only one pod
- without updating existing repos
pod install --no-repo-update
This installs new items without updating existing repos (versioned or not).
It's also just quicker if you have a lot of repos and want a fast install of a new item.
source: https://stackoverflow.com/questions/28590013/cocoapods-how-to-install-only-one-new-library
source: https://stackoverflow.com/questions/28590013/cocoapods-how-to-install-only-one-new-library
7. Avplayer inside tableview cell still playing when dismissing changing controller
Implement
viewWillDisappear to call visibleCells and cycle through them looking for a VideoCell. Each time you find one, tell it to stop playing just as in the code you already have.
my answer in stackverflow: https://stackoverflow.com/a/59188546/8366535
You can use this it's same like viewWillDisappear
func tableView(_ tableView: UITableView, didEndDisplaying cell: UITableViewCell, forRowAt indexPath: IndexPath) {
guard let cell = cell as? YouTableViewCell else { return }
DispatchQueue.main.async {
cell.videoPlayerContainer.player?.pause()
cell.videoPlayerContainer.player = nil
cell.videoPlayerContainer.layoutIfNeeded()
}
}
Note: this example user AVKit or AVFoundation8. Remove subString in array Swift 5.1
Example:
let temp = ["29_thumbs.png", "35_thumbs.png", "13_thumbs.png", "24_thumbs.png"]
var newTemp = [String]()
func tempFilesInto(temp: [String]) {
temp.forEach { _arr in
var removeThumb = _arr
if let range = removeThumb.range(of: "_thumb") {
removeThumb.removeSubrange(range)
self.newTemp.append(removeThumb)
}
}
}
print(newTemp) // 29.png, 35.png, 13.png, 24.png
9. Add line break to 'git commit -m' from the command line (Multiple Line)
Try to running in my terminal:
➜ MyApp git:(dev/Barcode) ✗ git add -A
➜ MyApp git:(dev/Barcode) ✗ git commit -m 'CHANGE LOG
quote> fixing adMob
quote> update version
quote> build Update'
[dev/Barcode-For-AppStore 3bb678b] CHANGE LOG fixing adMob update version build Update
3 files changed, 8 insertions(+), 12 deletions(-)
➜ MyApp git:(dev/Barcode) git push origin dev/Barcode-For-AppStore
Source: https://stackoverflow.com/questions/5064563/add-line-break-to-git-commit-m-from-the-command-line
9 Notes In Desember 2019
![9 Notes In Desember 2019]()
Reviewed by Luffyselah
on
December 13, 2019
Rating: 5
