我可以选择显示UIImagePicker并从我的应用程序中的用户相机胶卷中选择一张图像。我正在运行的问题是照片按最旧的照片排序。这样可以轻松选择几个月前拍摄的图像。我希望用户快速选择几分钟前拍摄的图像,而不必滚动到列表的末尾(列表的底部)。
是否要求默认的UIImagePicker对其结果进行排序并显示最新结果,或者至少在呈现后滚动到列表的末尾?
- (BOOL) startCameraControllerFromViewController: (UIViewController*) controller
usingDelegate: (id <UIImagePickerControllerDelegate,
UINavigationControllerDelegate>) delegate {
if (([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera] == NO)
|| (delegate == nil)
|| (controller == nil))
return NO;
UIImagePickerController *cameraUI = [[UIImagePickerController alloc] init];
cameraUI.sourceType = UIImagePickerControllerSourceTypeCamera;
// Displays a control that allows the user to choose picture or
// movie capture, if both are available:
cameraUI.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeImage];
// Hides the controls for moving & scaling pictures, or for
// trimming movies. To instead show the controls, use YES.
cameraUI.allowsEditing = NO;
cameraUI.delegate = delegate;
[controller presentModalViewController: cameraUI animated: YES];
return YES;
}