UIImagePicker 在我的应用程序处于 ladscape 模式时以 Portraite 模式打开。
UIimage 选择器的代码是
picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:picker animated:YES completion:nil];