如何将相机按钮添加到UIImageView

Question

我想将背景图片添加到UIImageView。目前，在UIImageView的空框架中，我有tapGestureRcognizer打开相机。

let imageView = whiskyPicture
    let tapGestureRecognizer = UITapGestureRecognizer(target:self, action:#selector(DataInsertController.imageTapped(_:)))
    imageView!.userInteractionEnabled = true
    imageView!.addGestureRecognizer(tapGestureRecognizer)

func imageTapped(sender: UITapGestureRecognizer) {
    imagePicker = UIImagePickerController()
    imagePicker.allowsEditing = true
    imagePicker.delegate = self
    imagePicker.sourceType = .Camera

    presentViewController(imagePicker, animated: true, completion: nil)

现在我想在UIImageView中添加一个背景图片，用户可以看到在哪里点按。最好的办法是将iOS的相机图标添加到UIImage中。选择照片后，背景图像应该消失。

有任何建议如何做到这一点？

故事板看起来像这样：

在UIImageView我想添加背景图片。

Answer 1

在您的imageView中直接设置相机图片并将Mode属性设置为Center。就像这个图像一样

现在在didFinishPickingMediaWithInfo方法中，只需将contentMode的{​​{1}}更改为您想要的内容imageView，Scale To Fill，Aspect Fit等

Answer 2

首先，设计或搜索相机图像并将其添加到图像资源中。假设您将文件命名为camera.jpg，在故事板中将图像设置为camera.jpg。因此，在加载时，您将看到该图像。

现在，当你完成拍照时，你想用你的“拍摄”照片替换camera.jpg。

func imagePickerController(picker: UIImagePickerController!, didFinishPickingMediaWithInfo info:NSDictionary!) {
    let tempImage = editingInfo[UIImagePickerControllerOriginalImage] as UIImage
    myImageView.image = tempImage

    self.dismissModalViewControllerAnimated(true)

}

Answer 3

首先，您需要在类中实现UIImagePickerControllerDelegate。

var imagePicker : UIImagePickerController!

func imagePickerController(picker: UIImagePickerController,       didFinishPickingMediaWithInfo info: [String : AnyObject]) {
    imagePicker.dismissViewControllerAnimated(true, completion: nil)

    imageView.image = info[UIImagePickerControllerOriginalImage] as? UIImage

}

override func viewWillAppear(animated: Bool) {

    //Makes the camera pops up

    if imagePicker == nil { 
        imagePicker =  UIImagePickerController()
        imagePicker.delegate = self
        imagePicker.sourceType = .Camera

        presentViewController(imagePicker, animated: true, completion: nil) }

}

现在使用可以拍照，图片将显示在imageView中。希望我能正确理解这个问题