Вот решение, которое работает с элементом кнопки ANY System bar +, оно поддерживает tintColor
:
- (void)viewDidLoad {
[super viewDidLoad];
[self.button setImage:[self imageFromSystemBarButton:UIBarButtonSystemItemTrash]
forState:UIControlStateNormal];
self.button.tintColor = [UIColor redColor];
}
- (UIImage *)imageFromSystemBarButton:(UIBarButtonSystemItem)systemItem {
// Holding onto the oldItem (if any) to set it back later
// could use left or right, doesn't matter
UIBarButtonItem *oldItem = self.navigationItem.rightBarButtonItem;
UIBarButtonItem *tempItem = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:systemItem
target:nil
action:nil];
// Setting as our right bar button item so we can traverse its subviews
self.navigationItem.rightBarButtonItem = tempItem;
// Don't know whether this is considered as PRIVATE API or not
UIView *itemView = (UIView *)[self.navigationItem.rightBarButtonItem performSelector:@selector(view)];
UIImage *image = nil;
// Traversing the subviews to find the ImageView and getting its image
for (UIView *subView in itemView.subviews) {
if ([subView isKindOfClass:[UIImageView class]]) {
image = ((UIImageView *)subView).image;
break;
}
}
// Setting our oldItem back since we have the image now
self.navigationItem.rightBarButtonItem = oldItem;
return image;
}
P.S. Не стесняйтесь улучшаться, если знаете лучший способ, спасибо.