在iOS6中不推荐使用presentModalViewController：Animated

我将以下代码用于图像选择器。但是，当我在模拟器中运行它时，内存泄漏，并且收到有关presentModalViewcontroller:animated在iOS6中弃用的警告。我也被dismissModalViewController:animated弃用了。我正在使用SDK 6.1。

ImagePicker的代码：

- (void)showAlbum:(id)sender { 
    imagePicker=[[UIImagePickerController alloc]init];
    imagePicker.delegate = self;
    imagePicker.allowsEditing =NO;
    imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    [self presentModalViewController:imagePicker animated:YES];
}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{
    //release picker
    [picker dismissModalViewControllerAnimated:YES];
}

使用此行并检查：

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

[[Picker presentingViewController] dismissViewControllerAnimated:YES completion:nil];

代替

 [[Picker parentViewControl] dismissModalViewControllerAnimated:YES];

和

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

代替

[self presentModalViewController:picker animated:YES];

正如维沙尔所说

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

确保您还添加了“ completion：nil”

if ([self respondsToSelector:@selector(presentViewController:animated:completion:)])
{
    [self presentViewController:objSignupViewController animated:^{} completion:nil];
}
else
{
    [self presentModalViewController:objSignupViewController animated:YES];
}

用：

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

然后用于解雇模态：

[self dismissViewControllerAnimated:controller completion:nil];

要么

[self dismissViewControllerAnimated:YES completion:nil];