点击TableViewCell图像（swift）后，如何在主VC上调用/显示拍摄行动表或从图库中选择照片
[结果]在tableview单元格中点击的个人资料图片上，我想显示警报 TableViewCell点击TableViewCell图像（swift）后，如何在主VC上调用/显示拍摄行动表或从图库中选择照片,swift,Swift,[结果]在tableview单元格中点击的个人资料图片上，我想显示警报 TableViewCell Here I Try MVVM pattern to achieve TableView but for showing alert I face problems , it compiles successfully but not showing alert. import Foundation import UIKit class ParentsImageCell : UITableVi
Here I Try MVVM pattern to achieve TableView but for showing alert I face problems , it compiles successfully but not showing alert.
import Foundation
import UIKit
class ParentsImageCell : UITableViewCell {
weak var myVC : ProfileOfParentsDetailsViewController?
var parentProfileVC = ProfileOfParentsDetailsViewController()
@IBOutlet weak var imageProfile : UIImageView!
var items : ParentProfileViewModelItem? {
didSet {
guard let items = items as? ParentProfileViewModelProfileItem else {
return
}
imageProfile?.image = UIImage(named: items.profileImg)
}
}
static var nib:UINib {
return UINib(nibName: identifier, bundle: nil)
}
static var identifier: String {
return String(describing: self)
}
override func awakeFromNib() {
super.awakeFromNib()
imageProfile?.layer.cornerRadius = 62
imageProfile?.clipsToBounds = true
imageProfile?.contentMode = .scaleAspectFill
imageProfile?.backgroundColor = UIColor.lightGray
//Add Tapped Gesture
imageProfile.isUserInteractionEnabled = true
let gesture = UITapGestureRecognizer(
target: self,
action: #selector(didTappedChangeProfilePic))
gesture.numberOfTapsRequired = 1
gesture.numberOfTouchesRequired = 1
imageProfile.addGestureRecognizer(gesture)
}
@objc private func didTappedChangeProfilePic(){
print("tapped on imageView")
presentPhotoActionSheet()
}
override func prepareForReuse() {
super.prepareForReuse()
imageProfile?.image = nil
}
}
extension ParentsImageCell : UIImagePickerControllerDelegate ,UINavigationControllerDelegate {
func presentPhotoActionSheet(){
let actionSheet = UIAlertController(title: "Profile Picture", message: "How would you write to select a picture", preferredStyle: .actionSheet)
actionSheet.addAction(UIAlertAction(title: "cancel", style: .cancel, handler: nil))
actionSheet.addAction(UIAlertAction(title: "Take Photo", style: .default, handler: {[weak self] _ in
self?.presentCamera()
}))
actionSheet.addAction(UIAlertAction(title: "Choose Photo", style: .default, handler: { [weak self]_ in
self?.presentPhotoPicker()
}))
myVC?.present(actionSheet , animated: true)
}
func presentCamera(){
let vc = UIImagePickerController()
vc.sourceType = .camera
vc.delegate = self
vc.allowsEditing = true
myVC?.present(vc , animated: true)
}
func presentPhotoPicker(){
let vc = UIImagePickerController()
vc.sourceType = .photoLibrary
vc.delegate = self
vc.allowsEditing = true
myVC?.present(vc , animated: true)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info:
[UIImagePickerController.InfoKey : Any]) {
guard let selectedImage = info[UIImagePickerController.InfoKey.editedImage] as? UIImage else {
return
}
self.imageProfile.image = selectedImage
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
picker.dismiss(animated: true, completion: nil)
}
}
Here I Try MVVM pattern to achieve TableView but for showing alert I face problems , it compiles successfully but not showing alert.
import Foundation
import UIKit
class ParentsImageCell : UITableViewCell {
weak var myVC : ProfileOfParentsDetailsViewController?
var parentProfileVC = ProfileOfParentsDetailsViewController()
@IBOutlet weak var imageProfile : UIImageView!
var items : ParentProfileViewModelItem? {
didSet {
guard let items = items as? ParentProfileViewModelProfileItem else {
return
}
imageProfile?.image = UIImage(named: items.profileImg)
}
}
static var nib:UINib {
return UINib(nibName: identifier, bundle: nil)
}
static var identifier: String {
return String(describing: self)
}
override func awakeFromNib() {
super.awakeFromNib()
imageProfile?.layer.cornerRadius = 62
imageProfile?.clipsToBounds = true
imageProfile?.contentMode = .scaleAspectFill
imageProfile?.backgroundColor = UIColor.lightGray
//Add Tapped Gesture
imageProfile.isUserInteractionEnabled = true
let gesture = UITapGestureRecognizer(
target: self,
action: #selector(didTappedChangeProfilePic))
gesture.numberOfTapsRequired = 1
gesture.numberOfTouchesRequired = 1
imageProfile.addGestureRecognizer(gesture)
}
@objc private func didTappedChangeProfilePic(){
print("tapped on imageView")
presentPhotoActionSheet()
}
override func prepareForReuse() {
super.prepareForReuse()
imageProfile?.image = nil
}
}
extension ParentsImageCell : UIImagePickerControllerDelegate ,UINavigationControllerDelegate {
func presentPhotoActionSheet(){
let actionSheet = UIAlertController(title: "Profile Picture", message: "How would you write to select a picture", preferredStyle: .actionSheet)
actionSheet.addAction(UIAlertAction(title: "cancel", style: .cancel, handler: nil))
actionSheet.addAction(UIAlertAction(title: "Take Photo", style: .default, handler: {[weak self] _ in
self?.presentCamera()
}))
actionSheet.addAction(UIAlertAction(title: "Choose Photo", style: .default, handler: { [weak self]_ in
self?.presentPhotoPicker()
}))
myVC?.present(actionSheet , animated: true)
}
func presentCamera(){
let vc = UIImagePickerController()
vc.sourceType = .camera
vc.delegate = self
vc.allowsEditing = true
myVC?.present(vc , animated: true)
}
func presentPhotoPicker(){
let vc = UIImagePickerController()
vc.sourceType = .photoLibrary
vc.delegate = self
vc.allowsEditing = true
myVC?.present(vc , animated: true)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info:
[UIImagePickerController.InfoKey : Any]) {
guard let selectedImage = info[UIImagePickerController.InfoKey.editedImage] as? UIImage else {
return
}
self.imageProfile.image = selectedImage
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
picker.dismiss(animated: true, completion: nil)
}
}
class ParentProfileViewModel: NSObject {
var items = [ParentProfileViewModelItem]()
var reloadSections: ((_ section: Int) -> Void)?
override init() {
super.init()
guard let data = dataFromFile("ServerData"),
let profile = Profile(data: data) else {
return
}
// initialization code will go here
if let profile = profile.pictureUrl {
let profileItem = ParentProfileViewModelProfileItem(profileImg: profile)
items.append(profileItem)
}
if let name = profile.fullName {
let nameItem = ParentProfileViewModelNameItem(name: name)
items.append(nameItem)
}
if let email = profile.email {
let emailItem = ParentProfileViewModelEmailItem(email: email)
items.append(emailItem)
}
let coach = profile.coach
if !coach.isEmpty {
let coachItem = ParentProfileViewModelCoachItem(coach: coach)
items.append(coachItem)
}
let candidate = profile.candidate
if !candidate.isEmpty {
let candidateItem = ParentProfileViewModelCandidateItem(candidate: candidate)
items.append(candidateItem)
}
}
}
//MARK:- TableviewDatasource & Delegates
extension ParentProfileViewModel: UITableViewDataSource {
//Number of section
func numberOfSections(in tableView: UITableView) -> Int {
return items.count
}
//Number of RowInSection
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
let item = items[section]
guard item.isCollapsible else {
return item.rowCount
}
if item.isCollapsed {
return 0
} else {
return item.rowCount
}
}
//Cell for row at indexpath
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
// we will configure the cells here
let item = items[indexPath.section]
switch item.type {
case .profileImg:
let vc = ProfileOfParentsDetailsViewController()
if let cell = tableView.dequeueReusableCell(withIdentifier: ParentsImageCell.identifier, for: indexPath) as? ParentsImageCell {
cell.items = item
cell.myVC = vc
return cell
}
case .fullName:
if let cell = tableView.dequeueReusableCell(withIdentifier: ParentsFulNameCell.identifier, for: indexPath) as? ParentsFulNameCell {
cell.items = item
return cell
}
case .email:
if let cell = tableView.dequeueReusableCell(withIdentifier: ParentsEmailCell.identifier, for: indexPath) as? ParentsEmailCell {
cell.items = item
return cell
}
case .candidate:
if let item = item as? ParentProfileViewModelCandidateItem, let cell = tableView.dequeueReusableCell(withIdentifier: CandidatCell.identifier, for: indexPath) as? CandidatCell {
let candidate = item.candidate[indexPath.row]
cell.item = candidate
return cell
}
case .coach:
if let item = item as? ParentProfileViewModelCoachItem, let cell = tableView.dequeueReusableCell(withIdentifier: ParentCoachCell.identifier, for: indexPath) as? ParentCoachCell {
cell.item = item.coach[indexPath.row]
return cell
}
}
return UITableViewCell()
}
}