swift2.0 UIImagePickerController 拍照 相册 录像
系统 ios9.1 在app 里最常用的功能就是多媒体选择,首先我们storyboard 创建一个button 用于触发选择事件 @IBAction func selectImageAction(sender: AnyObject) {
}
这时候通常会弹出来一个ActionSheet 上面有拍照 , 相册,录像 和取消 这几项。iOS 8 以后actionsheet 和 alertview 都统一用UIAlertController 方法调用,8.3以前actionsheet 有独立的方法 后来都废弃了。首先我们要加入actionsheet 相关delegate 如下 class ViewController: UIViewController,UIImagePickerControllerDelegate,UINavigationControllerDelegate,UIActionSheetDelegate {
}
@IBAction func selectImageAction(sender: AnyObject) {
let actionSheetController: UIAlertController = UIAlertController(title: "请选择",message:nil,preferredStyle: .ActionSheet)
//取消按钮
let cancelAction: UIAlertAction = UIAlertAction(title: "取消",style: .Cancel) { action -> Void in
//Just dismiss the action sheet
}
actionSheetController.addAction(cancelAction)
//拍照
let takePictureAction: UIAlertAction = UIAlertAction(title: "拍照",style: .Default)
{ action -> Void in
[self .initWithImagePickView("拍照")]
}
actionSheetController.addAction(takePictureAction)
//相册选择
let choosePictureAction: UIAlertAction = UIAlertAction(title: "相册",style: .Default)
{ action -> Void in
[self .initWithImagePickView("相册")]
}
actionSheetController.addAction(choosePictureAction)
//摄像
let moviePictureAction: UIAlertAction = UIAlertAction(title: "摄像",style: .Default)
{ action -> Void in
[self .initWithImagePickView("摄像")]
}
actionSheetController.addAction(moviePictureAction)
self.presentViewController(actionSheetController,animated: true,completion: nil)
}
这样我们想要的actionSheet 创建完成 func initWithImagePickView(type:NSString){
self.imagePicker = UIImagePickerController()
self.imagePicker.delegate = self;
self.imagePicker.allowsEditing = true;
switch type{
case "拍照":
self.imagePicker.sourceType = .Camera
break
case "相册":
self.imagePicker.sourceType = .PhotoLibrary
break
case "录像":
self.imagePicker.sourceType = .Camera
self.imagePicker.videoMaximumDuration = 60 * 3
self.imagePicker.videoQuality = .Type640x480
self.imagePicker.mediaTypes = [String(kUTTypeMovie)]
break
default:
print("error")
}
presentViewController(self.imagePicker,completion: nil)
}
swift 可以支持字符串,你也可以尝试其他类型看看!一些方法跟object c 基本一样 下面实现imagepick 的 delegate 方法就可以了 func imagePickerController(picker: UIImagePickerController,didFinishPickingMediaWithInfo info: [String : AnyObject]) { let mediaType = info[UIImagePickerControllerMediaType] as! String
let compareResult = CFStringCompare(mediaType as NSString!,kUTTypeMovie,CFStringCompareFlags.CompareCaseInsensitive)
//判读是否是视频还是图片
if compareResult == CFComparisonResult.CompareEqualTo {
let moviePath = info[UIImagePickerControllerMediaURL] as? NSURL
//获取路径
let moviePathString = moviePath!.relativePath
if UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(moviePathString!)
{
UISaveVideoAtPathToSavedPhotosAlbum(moviePathString!,nil,nil)
}
print("视频")
}
else {
print("图片")
let image = info[UIImagePickerControllerOriginalImage] as? UIImage
self.imageView.image = image;
}
imagePicker.dismissViewControllerAnimated(true,completion: nil)
}
这样一个多媒体选择功能基本实现了! (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |