【发布时间】：2016-07-18 00:13:00
【问题描述】：
我使用 Firebase 作为我的应用程序的后端。当用户完成身份验证后，他们将转到配置文件创建页面。它显示来自 facebook 的用户个人资料图片。
我用这段代码来显示
func displayProfilePic(user: FIRUser?){
let photoURL = user?.photoURL
struct last {
static var photoURL: NSURL? = nil
}
last.photoURL = photoURL; // to prevent earlier image overwrites later one.
if let photoURL = photoURL {
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0), {
let data = NSData.init(contentsOfURL: photoURL)
if let data = data {
let image = UIImage.init(data: data)
dispatch_async(dispatch_get_main_queue(), {
if (photoURL == last.photoURL) {
self.profilePic.image = image
}
})
}
})
} else {
profilePic.image = UIImage.init(named: "DefaultPic")
}
不过，我也让用户通过相机或照片库选择自己的头像。当用户选择他们的图像时，它将显示选择的图像 1 到 2 秒，并显示回 facebook 个人资料图片。 也就是说，“挑选出来的图片不能代替脸书头像”
这是我的相机和照片库代码
func openGallary(){
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.SavedPhotosAlbum){
print("Pick Photo")
self.imagePicker.delegate = self
self.imagePicker.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
self.imagePicker.allowsEditing = true
self.presentViewController(self.imagePicker, animated: true, completion: nil)
}
}
func openCamera(){
if(UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera)){
self.imagePicker.sourceType = UIImagePickerControllerSourceType.Camera
self.imagePicker.allowsEditing = true
self.presentViewController(self.imagePicker, animated: true, completion: nil)
}else{
print("you got no camara")
}
}
func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage!, editingInfo: [NSObject : AnyObject]!) {
self.dismissViewControllerAnimated(true, completion: { () -> Void in
})
profilePic.image = image
}
【问题讨论】：
标签： swift firebase firebase-authentication