我有
tabbarController和CameraViewControlle r。我想在单击“相机”选项卡后显示相机。我已经做了。打开相机后，我想显示选择到下一个viewController的特定图像，但无法执行。我正在使用UIImagePickerController，请帮助
func tabBarController(_ tabBarController: UITabBarController, didSelect viewController: UIViewController) {
let tabBarIndex = tabBarController.selectedIndex
if tabBarIndex == 0 {
//do your stuff
print("First Tab")
} else if tabBarIndex == 1 {
print("Second Tab")
} else if tabBarIndex == 2 {
//do the camera stuff here
let imagePickerController1 = ImagePickerController()
imagePickerController1.delegate = self
imagePickerController1.imageLimit = 2
present(imagePickerController1,animated: true,completion: nil)
print("camera")
print("Third Tab")
}
}
完成按钮按下的代码。
func doneButtonDidPress(_ imagePicker: ImagePickerController, images: [UIImage]) {
let firstVC = self.storyboard!.instantiateViewController(withIdentifier: "CameraVC") as! CameraVC
show(firstVC, sender: nil)
dismiss(animated: true, completion: nil)
print("done")
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
if let image = info["UIImagePickerControllerOriginalImage"] as? UIImage {
}
dismiss(animated: true, completion: nil)
}
最佳答案
您的doneButtonDidPress方法是在TabBarController中实现的，并且您希望在Images中选择CameraVC，因此在NotificationCenter选择完成后，要做一件事，在CameraVC中添加Images，并用array Image发布该通知。并从images中从该array加载所选的CameraVC。
CameraVC
NotificationCenter.default.addObserver(self, selector: #selector(updateSelectedImages(_:)), name: NSNotification.Name(rawValue: "updateSelectedImages"), object: nil)
@objc func updateSelectedImages(_ notification: Notification) {
let imagesInfo = notification.object as? NSDictionary
self.arrImages = imagesInfo?.value(forKey: "selectedIamges") as! [UIImage]
self.imageView.image = self.arrImages[0]
self.imageView1.image = self.arrImages[1]
}
UITabBarController
let dict = NSMutableDictionary()
dict.setValue(images, forKey: "selectedIamges")
NotificationCenter.default.post(name: NSNotification.Name("updateSelectedImages"), object: dict)