Offsetting UIRefreshControl

Question

I am currently using a JASidePanel for my application and I have a UITableViewcontroller with a UIRefreshControl as one of the ViewControllers for it. The width of my tableview still has a width of 320 pixels so the UIRefreshControl gets centered right in the middle of the view. I'm trying to figure out if there's a way to offset the UIRefreshControl (moving the x by 20 pixels to the left) so that it looks centered when I have my side panel visible.

Thanks!

Answer 1

You need to set the frame of the UIRefreshControl. Use this code

UIRefreshControl *refContr=[[UIRefreshControl alloc] initWithFrame:CGRectMake(0, 0, 20, 20)];
[refContr setTintColor:[UIColor blueColor]];
[refContr setBackgroundColor:[UIColor greenColor]];

[stocktable addSubview:refContr];
[refContr setAutoresizingMask:(UIViewAutoresizingFlexibleRightMargin|UIViewAutoresizingFlexibleLeftMargin)];

[[refContr.subviews objectAtIndex:0] setFrame:CGRectMake(30, 0, 20, 30)];


NSLog(@"subViews %@",refContr.subviews); 

Output:

Answer 2

For Swift 2.2 solution is

let offset = -50

let refreshControl = UIRefreshControl()
refreshControl.bounds = CGRect(x: refreshControl.bounds.origin.x, y: offset,
                               width: refreshControl.bounds.size.width,
                               height: refreshControl.bounds.size.height)
refreshControl.attributedTitle = NSAttributedString(string: "Pull to refresh")
refreshControl.addTarget(self, action: #selector(networking), forControlEvents: UIControlEvents.ValueChanged)
self.profileTable.addSubview(refreshControl)

Thats it.

Answer 3

Try editing the bounds. For example, to move the control down +50px:

refreshControl.bounds = CGRectMake(refreshControl.bounds.origin.x,
                                   -50,
                                   refreshControl.bounds.size.width,
                                   refreshControl.bounds.size.height);
[refreshControl beginRefreshing];
[refreshControl endRefreshing];

Answer 4

Here's a Swift version similar to the workaround that Werewolf suggested. I'm using my own custom activity view class (MyCustomActivityIndicatorView) and it's also a subview of the refresh control, so I make sure I don't mess with it's frame, just the frame of the default subviews. After calling layoutSubviews on super I adjust the custom activity view's frame to match. This is all contained in a custom UIRefreshControl subclass.

override func layoutSubviews() {

    for view in subviews {
        if view is MyCustomActivityIndicatorView {
            continue
        } else {
            // UIRefreshControl sizes itself based on the size of it's subviews. Since you can't remove the default refresh indicator, we modify it's frame to match our activity indicator before calling layoutSubviews on super
            var subFrame = view.frame
            subFrame.size = activityView.intrinsicContentSize()

            // add some margins
            subFrame.offsetInPlace(dx: -layoutMargins.left, dy: -layoutMargins.top)
            subFrame.insetInPlace(dx: -(layoutMargins.left+layoutMargins.right), dy: -(layoutMargins.top+layoutMargins.bottom))

            view.frame = subFrame.integral
        }
    }

    super.layoutSubviews()

    activityView.frame = bounds
}

Note: I'm adding in UIView's layout margins in which isn't strictly necessary but gives my activity indicator some space to breath.

Answer 5

- (UIRefreshControl *)refreshControl
{
    if (!_refreshControl)
    {
        _refreshControl = [UIRefreshControl new];
        _refreshControl.tintColor = [UIColor lightGrayColor];

_refreshControl.bounds = CGRectInset(_refreshControl.bounds, 0.0, 10.0); // let it down with inset 10.0

        [_refreshControl addTarget:self
                            action:@selector(pullToRefresh)
                  forControlEvents:UIControlEventValueChanged];
    }
    return _refreshControl;
}

Answer 6

I needed to do this in order to move the UIRefreshControl downwards. My solution was to subclass UIRefreshControl, and overwrite the layoutSubviews method to set a CAAffineTransform translation on each subview. Unfortunately you can't just set a transform on the UIRefreshControl.

Change xOffset and yOffset as necessary.

@interface MyUIRefreshControl : UIRefreshControl
@end

@implementation MyUIRefreshControl

- (void)layoutSubviews {
    [super layoutSubviews];
    for (UIView *view in self.subviews) {
        view.transform = CGAffineTransformMakeTranslation(xOffset, yOffset);
    }
}

@end