Question

关于presentViewController时存在的内存泄漏问题，求助大神

Answer 1

//在a控制器中
CCChoosePhotoViewController * allPhotosVC = [[CCChoosePhotoViewController alloc]init];
// [self.navigationController pushViewController:allPhotosVC animated:YES];

UINavigationController * nav = [[UINavigationController alloc]initWithRootViewController:allPhotosVC];
nav.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentViewController:nav animated:YES completion:nil];
nav = nil;
allPhotosVC = nil;

消失部分，在CCChoosePhotoViewController中执行dismiss 操作。

[self.navigationController dismissViewControllerAnimated:YES completion:nil];