TPMultiLayoutViewController的ARC转换； ARC不允许将Objective-C指针隐式转换为“ const void *”

Question

I'm trying to use TPMultiLayoutViewController in a project using ARC, but am bumping into the following error:-

Implicit conversion of an Objective-C pointer to 'const void *' is disallowed with ARC

I'm really not sure how to tackle this; does it need explicitly converting? and how would I do that?

- (void)addAttributesForSubviewHierarchy:(UIView*)view associatedWithSubviewHierarchy:(UIView*)associatedView toTable:(NSMutableDictionary*)table {
    [table setObject:[self attributesForView:view] forKey:[NSValue valueWithPointer:associatedView]];

    if ( ![self shouldDescendIntoSubviewsOfView:view] ) return;

    for ( UIView *subview in view.subviews ) {
        UIView *associatedSubView = (view == associatedView ? subview : [self findAssociatedViewForView:subview amongViews:associatedView.subviews]);
        if ( associatedSubView ) {
            [self addAttributesForSubviewHierarchy:subview associatedWithSubviewHierarchy:associatedSubView toTable:table];
        }
    }
}

Answer 1

You're getting the error because of this:

[NSValue valueWithPointer:associatedView]

Since valueWithPointer: takes a const char * . You can work around this by doing what @ user1139069 suggested:

[NSValue valueWithPointer:(__bridge void *)associatedView]

Answer 2

如果您使用[NSValue valueWithNonretainedObject:]而不是[NSValue valueWithPointer:]怎么办？