我们如何在 Swift 4+ 和 IOS 11+ 中录制和保存视频?
how can we record and save video in Swift 4+ and IOS 11+?
我正在尝试录制视频,然后将其保存在 IOS 设备上,我可以录制它,但我想知道如何将其保存在设备上?
import UIKit
import AVKit
import MobileCoreServices
class ViewController: UIViewController , UIImagePickerControllerDelegate , UINavigationControllerDelegate {
@IBOutlet weak var RecordButton: UIButton!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
@IBAction func RecordAction(_ sender: UIButton) {
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.camera) {
print("Camera Available")
let imagePicker = UIImagePickerController()
imagePicker.delegate = self
imagePicker.sourceType = .camera
imagePicker.mediaTypes = [kUTTypeMovie as String]
imagePicker.allowsEditing = false
self.present(imagePicker, animated: true, completion: nil)
} else {
print("Camera UnAvaialable")
}
}
}
首先确保将以下隐私添加到 info.plist :
Privacy - Photo Library Additions Usage Description
Privacy - Camera Usage Description
Privacy - Microphone Usage Description
并在 ViewDidLoad 下添加以下函数
func imagePickerController(_ picker: UIImagePickerController,
didFinishPickingMediaWithInfo info: [String : Any]) {
dismiss(animated: true, completion: nil)
guard
let mediaType = info[UIImagePickerControllerMediaType] as? String,
mediaType == (kUTTypeMovie as String),
let url = info[UIImagePickerControllerMediaURL] as? URL,
UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(url.path)
else {
return
}
// Handle a movie capture
UISaveVideoAtPathToSavedPhotosAlbum(
url.path,
self,
#selector(video(_:didFinishSavingWithError:contextInfo:)),
nil)
}
@objc func video(_ videoPath: String, didFinishSavingWithError error: Error?, contextInfo info: AnyObject) {
let title = (error == nil) ? "Success" : "Error"
let message = (error == nil) ? "Video was saved" : "Video failed to save"
let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.cancel, handler: nil))
present(alert, animated: true, completion: nil)
}
我正在尝试录制视频,然后将其保存在 IOS 设备上,我可以录制它,但我想知道如何将其保存在设备上?
import UIKit
import AVKit
import MobileCoreServices
class ViewController: UIViewController , UIImagePickerControllerDelegate , UINavigationControllerDelegate {
@IBOutlet weak var RecordButton: UIButton!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
@IBAction func RecordAction(_ sender: UIButton) {
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.camera) {
print("Camera Available")
let imagePicker = UIImagePickerController()
imagePicker.delegate = self
imagePicker.sourceType = .camera
imagePicker.mediaTypes = [kUTTypeMovie as String]
imagePicker.allowsEditing = false
self.present(imagePicker, animated: true, completion: nil)
} else {
print("Camera UnAvaialable")
}
}
}
首先确保将以下隐私添加到 info.plist :
Privacy - Photo Library Additions Usage Description
Privacy - Camera Usage Description
Privacy - Microphone Usage Description
并在 ViewDidLoad 下添加以下函数
func imagePickerController(_ picker: UIImagePickerController,
didFinishPickingMediaWithInfo info: [String : Any]) {
dismiss(animated: true, completion: nil)
guard
let mediaType = info[UIImagePickerControllerMediaType] as? String,
mediaType == (kUTTypeMovie as String),
let url = info[UIImagePickerControllerMediaURL] as? URL,
UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(url.path)
else {
return
}
// Handle a movie capture
UISaveVideoAtPathToSavedPhotosAlbum(
url.path,
self,
#selector(video(_:didFinishSavingWithError:contextInfo:)),
nil)
}
@objc func video(_ videoPath: String, didFinishSavingWithError error: Error?, contextInfo info: AnyObject) {
let title = (error == nil) ? "Success" : "Error"
let message = (error == nil) ? "Video was saved" : "Video failed to save"
let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.cancel, handler: nil))
present(alert, animated: true, completion: nil)
}