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我已经创建了一个 iPhone 应用程序。我在视图中有一个按钮。在按钮中单击我想从 iPhone 照片库中获取照片。并在按钮中设置这张选定的照片。我怎样才能做到这一点。提前致谢。

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3 回答 3

2

你必须使用UIImagepicker。

于 2012-03-07T08:11:17.707 回答
2

您可以按照本教程从手机厨房或相机获取图像。http://www.icodeblog.com/2009/07/28/getting-images-from-the-iphone-photo-library-or-camera-using-uiimagepickercontroller/

于 2012-03-07T08:13:35.547 回答
1

几天前，我为 ipad 做了类似的事情。

让我们调用您的按钮photoButton，它是我们控制器中的一个变量。还要添加popoverController变量（需要适当地解除弹出框）。

当按下 photoButton 时，我们调用下一个方法：

- (void)photoButtonPressed:(id)sender {
        UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
        imagePickerController.delegate = self;
        imagePickerController.allowsEditing = NO;
        imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
        popoverController = [[UIPopoverController alloc] initWithContentViewController:imagePickerController];
        popoverController.delegate = self;
        [popoverController presentPopoverFromRect:sender
                                           inView:self.view
                         permittedArrowDirections:UIPopoverArrowDirectionAny
                                         animated:YES];
        [imagePickerController release];
}

你还应该实现下一个方法来支持 UIImagePickerControllerDelegate 和 UIPopoverControllerDelegate 协议：

#pragma mark - UIImagePickerControllerDelegate
- (void)imagePickerController:(UIImagePickerController *)picker
        didFinishPickingImage:(UIImage *)selectedImage
                  editingInfo:(NSDictionary *)editingInfo {
    [photoButton setImage:selectedImage forState:UIControlStateNormal];
    if ([popoverController isPopoverVisible]) {
        [popoverController dismissPopoverAnimated:YES];
    }
}

#pragma mark - UIPopoverControllerDelegate
- (void)popoverControllerDidDismissPopover:(UIPopoverController *)popoverContr {
    [popoverContr release];
    if (popoverContr == popoverController)
        popoverController = nil;
}
于 2012-03-07T08:34:45.513 回答