topic Re: Problem putting a UINavigationViewController inside a callout in ArcGIS Runtime SDK for iOS Questions

Problem putting a UINavigationViewController inside a callout

DanielMonego — Fri, 27 Jul 2012 13:25:54 GMT

I'm implementing an identification workflow that uses a UINavigationController that contains a series of UITableViews that allow the user to drill down into the data. Unfortunately, when I insert the navigation controller view into the callout, it weirdly overhangs the UITableView it contains:

[ATTACH=CONFIG]16435[/ATTACH]

As you can see, the navigation bar overhangs the top row of the table, which is difficult to see and access from under it.

I'm using the following code to put the view up:

-(void)identifyTask:(AGSIdentifyTask *)identifyTask operation:(NSOperation *)op didExecuteWithIdentifyResults:(NSArray *)results
{
    NSLog(@"Identify task returned with %d results.", [results count]);
    if (results && results.count > 0) 
    {
        IdentifyResultsViewController *idWindow = [[IdentifyResultsViewController alloc] init];
        idWindow.results = results;
        UINavigationController *nvc = [[UINavigationController alloc] initWithRootViewController:idWindow];
        map.callout.customView = nvc.view;
        nvc.view.frame = CGRectMake(0, 0, 275, 400);
        
        [map showCalloutAtPoint:self.mapPoint];
    }
}

I've played around with setting the frame of the idWindow.view, but haven't had any luck with that. Are there any better ways to get this layout working correctly?

Re: Problem putting a UINavigationViewController inside a callout

PaulLohr — Tue, 31 Jul 2012 15:47:56 GMT

I wonder if you need to ask the UINavigationController instance for the proper size of the item you are adding to it?

Re: Problem putting a UINavigationViewController inside a callout

NimeshJarecha — Sun, 12 Dec 2021 07:41:12 GMT

Just set the navigation view controller's frame before setting it as callout custom view and it should fix it. See code below...

-(void)identifyTask:(AGSIdentifyTask *)identifyTask operation:(NSOperation *)op didExecuteWithIdentifyResults:(NSArray *)results
{
    NSLog(@"Identify task returned with %d results.", [results count]);
    if (results && results.count > 0) 
    {
        IdentifyResultsViewController *idWindow = [[IdentifyResultsViewController alloc] init];
        idWindow.results = results;
        UINavigationController *nvc = [[UINavigationController alloc] initWithRootViewController:idWindow];

        //set the frame before setting the callout custom view
        nvc.view.frame = CGRectMake(0, 0, 275, 400);
        map.callout.customView = nvc.view;

        [map showCalloutAtPoint:self.mapPoint];
    }
}

Regards,
Nimesh

Re: Problem putting a UINavigationViewController inside a callout

AaronConnolly — Sun, 12 Dec 2021 07:41:15 GMT

Just set the navigation view controller's frame before setting it as callout custom view and it should fix it. See code below...

-(void)identifyTask:(AGSIdentifyTask *)identifyTask operation:(NSOperation *)op didExecuteWithIdentifyResults:(NSArray *)results
{
    NSLog(@"Identify task returned with %d results.", [results count]);
    if (results && results.count > 0) 
    {
        IdentifyResultsViewController *idWindow = [[IdentifyResultsViewController alloc] init];
        idWindow.results = results;
        UINavigationController *nvc = [[UINavigationController alloc] initWithRootViewController:idWindow];

        //set the frame before setting the callout custom view
        nvc.view.frame = CGRectMake(0, 0, 275, 400);
        map.callout.customView = nvc.view;

        [map showCalloutAtPoint:self.mapPoint];
    }
}

Regards,
Nimesh

Is this a bug? Why does this happen with UINavigationController but not with a stock UIViewController? I also noticed that if you set the callout's customView to a generic UIViewController, then some time later set it to a UINavigationController you don't see this issue with the nav bar.