一 代理
swift一定要遵循UIImagePickerControllerDelegate,UINavigationControllerDelegate俩个代理
二 info.plist
在info.plist中加入安全域名白名单(右键info.plist用source code打开)
<key>NSCameraUsageDescription</key>
<string>访问相机</string>
<key>NSPhotoLibraryUsageDescription</key>
<string>访问相册</string>
三 代码示例
func addIcon() {
let alertAction = UIAlertController.init(title: nil, message: nil, preferredStyle: .actionSheet)
alertAction.addAction(UIAlertAction.init(title: "获取相机", style: .default, handler: { (alertCamera) in
let picker:UIImagePickerController = UIImagePickerController()
picker.delegate = self as UIImagePickerControllerDelegate & UINavigationControllerDelegate
picker.sourceType = .camera
picker.allowsEditing = true
if UIImagePickerController.isSourceTypeAvailable(.camera){
self.present(picker, animated: true, completion: { () -> Void in
})
}else{
MBProgressHUD.showForError(to: self.view, text: "为授予防问相机权限", completion: nil)
}
}))
alertAction.addAction(UIAlertAction.init(title: "获取相册", style:.default, handler: { (alertPhpto) in
let picker:UIImagePickerController = UIImagePickerController()
picker.delegate = self as UIImagePickerControllerDelegate & UINavigationControllerDelegate
picker.sourceType = .photoLibrary
picker.allowsEditing = true
if UIImagePickerController.isSourceTypeAvailable(.photoLibrary){
self.present(picker, animated: true, completion: {
() -> Void in
})
}else{
MBProgressHUD.showForError(to: self.view, text: "为授予防问相册权限", completion: nil)
}
}))
alertAction.addAction(UIAlertAction.init(title: "取消", style: .cancel, handler: { (alertCancel) in
}))
self.present(alertAction, animated: true, completion: nil)
}
// MARK: ImagePicker Delegate 选择图片成功后代理
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
if let chosenImage = info[UIImagePickerControllerOriginalImage] as? UIImage {
picker.dismiss(animated: true) {
self.iconImage.image = chosenImage
}
//处理传入后台
}
}
四 上传到后台
/// 上传图片
///
/// - Parameters:
/// - path: <#path description#>
/// - image: <#image description#>
/// - completion: <#completion description#>
class func uploadImage(path: String, image: UIImage, completion: @escaping (_ succeeded: Bool, _ url: String?) -> Void) {
/* 签名 可忽略
let timestamp = String(Int(NSDate().timeIntervalSince1970 * 1000))
var _paramters = [String: Any]()
_paramters["timestamp"] = timestamp
let sortedKeys = _paramters.keys.sorted()
var temp = sortedKeys.map({ "\($0)=\(_paramters[$0]!)" }).joined(separator: "&")
temp += "&--------"
let sign = temp.md5().uppercased()
_paramters["sign"] = sign
*/
Alamofire.upload(multipartFormData: { (multipartFormData) in
let data = UIImageJPEGRepresentation(image, 0.9)
multipartFormData.append(data!, withName: "file", fileName: "image.png", mimeType: "image/png")
for (key, value) in _paramters {
multipartFormData.append((value as AnyObject).data(using: String.Encoding.utf8.rawValue)!, withName: key)
}
}, to: Constant.baseURL + path) { (result) in
switch result {
case .success(let upload, _, _):
upload.responseJSON(completionHandler: { (response) in
completion(true, JSON(response.data!)["data"].string)
})
case .failure(let error):
print(error)
completion(false, nil)
}
}
}
如有不妥，请多多指教
