Question

我在 UIImagePickerController 选择中遇到问题。当我从照片库应用程序崩溃中选择源时，由于从自由列表中退出的指针的签名无效。那么如果我再次运行它使用相同的代码工作正常。我在谷歌搜索并发现了一个与我的查询Xcode - My app crash and the error is "Invalid pointer dequeued from free list *** set a breakpoint in malloc_error_break to debug"相关的问题。

但解决办法在我的案例中不起作用。

我正在使用Xcode 8.1，我的部署目标是8.0。

Answer 1

正如@luke要求提供UIImagePickerViewController的代码：

    let pickerView = UIImagePickerController()
    pickerView.delegate = self
    pickerView.allowsEditing = true

    pickerView.sourceType = .photoLibrary

    let authStatus = PHPhotoLibrary.authorizationStatus() // Get the current authorization state.
    // print(authStatus)


    if (authStatus == PHAuthorizationStatus.notDetermined) {

        // Access has not been determined.
        PHPhotoLibrary.requestAuthorization({ (newStatus) in

            if (newStatus == PHAuthorizationStatus.authorized) {
                self.present(pickerView, animated: true, completion: { _ in })

            }

            else {

            }
        })

    } else if authStatus == PHAuthorizationStatus.authorized {
        print("Access has been granted.")

        self.present(pickerView, animated: true, completion: { _ in })

    }  else if (authStatus == PHAuthorizationStatus.denied) {
        print("Access has been denied.")

    }
    else if (authStatus == PHAuthorizationStatus.restricted) {

        print("Restricted access - normally won't happen.")

    }

现在，当用户选择特定图像时：将调用此方法：

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {

    //print(info)
    if let pickedImage = info[UIImagePickerControllerEditedImage] as? UIImage {
            YOUR_GLOBAL_IMAGE_VIEW?.contentMode = .scaleAspectFit
            YOUR_GLOBAL_IMAGE_VIEW?.image = pickedImage

        }
    }

    dismiss(animated: true, completion: nil)
}

不要忘记导入PhotosUI和UIImagePickerControllerDelegate。

应用程序因UIImagePickerController中从空闲列表中出列的指针的无效签名而崩溃

1 个答案: