Question

如何在代码中创建图像选择器？

我使用iOS 6.0，使用ARC，用于ipad。

我希望能够选择图片并以某种方式获得所选图像的UIImage。

我确实添加了代表：在此处输入代码

在viewDidLoad方法中做了

enter code here imagePicker = [[UIImagePickerController alloc] init];

并在按钮方法中点击我已经放

imagePicker.delegate = self;
imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentModalViewController:imagePicker animated:YES];

崩溃发生在

[self presentModalViewController:imagePicker animated:YES];

Answer 1

这里有一些教程http://www.raywenderlich.com/130/how-to-write-a-custom-image-picker-like-uiimagepicker和http://mobileorchard.com/ios-advanced-programming-the-image-picker/可能对您有帮助

Answer 2

我的一个项目中有类似的代码，但我有

[self presentViewController:imagePicker animated:YES completion:nil];

而不是

[self presentModalViewController:imagePicker animated:YES];

试一下，看看它是否有效。注意presentViewController而不是presentModalViewController。

Answer 3

在.h

中添加媒体资源

@property (strong) UIPopoverController *pop;

在你的按钮implimentation下的r .m文件中添加如下内容：

if (self.pop) {
        [self.pop dismissPopoverAnimated:YES];

    }


UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
       imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
       imagePickerController.delegate = self;
       imagePickerController.allowsEditing = YES; //if you want to edit the image

       self.pop=[[UIPopoverController alloc] initWithContentViewController:imagePickerController];
       //choose the direction of the arrow for the popover
       [self.pop presentPopoverFromRect:((UIButton *)sender).bounds inView:sender permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
  }
}

确保您的<UIPopoverControllerDelegate>代表设置为.h

如何在代码中打开ipad上的图像选择器

3 个答案: