Resizing UITableView on RootController - iphone

Is it possible to resize the UITableView on the RootController of a nav based app? When RootViewController.xib is opened in IB, there isn't a view. Just the UITableView. Clicking the inspector and then the little yellow ruler, frame height is grayed out. I'm adding a toolbar programmatically to the RootViewController:
[toolbar setFrame:rectArea];
That works fine but the bottom cell in the tableview is partially hidden because the tableview doesn't know about the toolbar.

The easiest way, is to adjust the contentInset (which is inherited from UIScrollView). Resizing by setting the frame can cause crazy drawing bugs in cells.
For example, if you are trying to resize a tableview for the keyboard, do something like this:
tableView.contentInset = UIEdgeInsetsMake(0.0, 0.0, 216.0, 0.0);
tableView.scrollIndicatorInsets = tableView.contentInset;
Hope that helps someone. This way worked best for me.

Yes, but you need to have a ViewController (not a UITableViewController) as the root controller for the nav, and wrap the actual UITableView in the UIViewControllers view.
You can still have the UIViewController conform to the UITableViewDelgate and Datasource protocols, and use all the same methods you have now in your UITableViewController.
P.S. you'll get more responses if you use the plain "iphone" tag.

You could also just set the Content and Scroller inset of the tableview

I encountered a similar issue when attempting to display the detail controller by itself, see: http://vimeo.com/13054813
The issue is that the SplitView controller applies its own transform to the sub-controllers, taking them out of the orientation detection loop, which blows goats and seems incredibly 'hackish' for built-in classes. (The video illustrates what happens when you make the detail view the root view, then add it back to the split view and make the split view root while in landscape; you get double rotation of the detail view.)
Unfortunately I've again run into these transformation issues while attempting to resize a SplitViewController's detail sub-view in response to the keyboard appearing/disappearing. In portrait, all works fine, in landscape it's fscked.

Yes, adjust the contentInset and scrollIndicatorInsets are the convenient way to resize the UITableView.
As the answer of Sam Soffes posted, I succeed resize UITableView in UITableViewController for the bottom UIToolbar.

Related

Strange black bars in UITableView

I'm really scratching my head over this one: When I make visible the Toolbar of the navcontroller in my view hierarchy, strange black bars appear at the top and bottom of the table view. http://grab.by/8pgz
The app is universal, and on the iPhone simulator (or device) this does not show up, although they use the same UITableViewController subclass.
I cannot even figure out what the extra bars are, which makes it even harder to come up with a solution.
They are, however, not navbar / toolbar. They are not section or table view header / footer. It does not merely seem to be a resizing of the table view either, since its background is not black.
The custom table view controller sits inside a UINavigationController, which in turn is inside a UISplitViewController. Pretty standard, as far as I understand.
Like said, they do not show up on the phone - nor do they appear in the popover in portrait orientation.
I'm really out of clues here. Any suggestions would be most welcome.
Cheers,
Gregor
Sweden
Update: Problem solved by moving the code for making toolbar visible to -(void)awakeFromNib method instead of -(void)viewDidLoad. Still don't know what went wrong, but now at least it works.
I believe there is a problem with the frame you're trying to use to initialize the tableView.
myTableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, height, width);
Try changing the height width variables in code, to reflect your height & width on the iPad.

UITableview changing height when shown from different UINavigationControllers ('More')

I'm having an issue with UITableViewController's tableView changing its frame position when presented from a UITabBarController, within a UINavigationController. The frame is fine when displayed from a regular tab. However, if I move and show the UITableViewController from the 'More' Section, the tableview moves down the same height as the navigation bar (which I don't want it to). When I tested the runtime frame coordinates between proper and nonproper positions, it shows as the same (0.0, 0.0, 320.0, 411.0).
This issue only happens AFTER I've shown the tableView in one Nav Controller and then it's moved and shown in another, like the 'More' VC to the tab, or tab to the 'More' VC
What's going on here and how can I fix this?
The last image is how it looks like when the app launch, as it should be, with he table view right below the nav bar. In the first two however, you can see that the tableview has been moved down.
Thanks in advance!
I was able to solve the issue. It turns out that when you move a UITableView controller within a UINavigationController to the moreNavigationController, 44 pixels are added to the 'top' variables of contentInset and scrollIndicatorInsets. I'm not sure why this is happening or why those 44 pixels aren't being removed when the tableView leaves the 'moreNavigationController', but here's the answer. I'm calling these two lines from within viewWillAppear.
self.tableView.contentInset = UIEdgeInsetsMake(44.0, 0.0, 0.0, 0.0);
self.tableView.scrollIndicatorInsets = UIEdgeInsetsMake(44.0, 0.0, 0.0, 0.0);
The UITableViewController has this behaviour that it always try to best fit the screen size. UITableViewController is perfect for fullscreen tableview but otherwize I recommend not using the UITableViewController but instead implement a tableViewControler yourself by implementing both the datasource and delegate. Some did set resizeSubViews to NO and solve their problem but I really advice recreate the controller yourself which is not that much work.
Reset autosizing property of table view nib file.
You can find it inside :
Tool>Attribute Inspector
First take a UITableView in the view using XIB. Then add navigation bar and resize the tableview. You will get what do you actually want.
If you still find any problem then please let me know.
If you can display your code, or take a screenshot of your setup, it would be a lot easier. From my experience, creating UITableViewController instances and hooking them up in Interface Builder will expand to fill the screen.
How are you connecting it to the "More" tab? If it's in two tabs, and you're doing ANYTHING dynamic, check your UITableViewController class viewDidLoad method. You shouldn't have to add / delete / re-add the table unless they're separate instances.
Some places to check:
NSLog your tableHeaderView height and position
NSLog your tableFooterView height and position
Create a backgroundView and assign it to the tableView's backgroundView property to see what it's true dimensions are and where it's being displayed
Check where the UITableViewController's view starting position is.
Wish I could help more. Would like to see your setup / code.

UIView Subview Does not autoresize on orientation change

In my iPhone app, I have a view controller with two views (essentially, a front & back view). The front view is the main UIView, and the back view is a secondary UIView which is added as a subview using [self.view addSubview:backView] when showing the back and [backView removeFromSuperview] when hiding it. However, when the orientation changes, I have the following issue: the main UIView (frontView) rotates & all of its elements resize properly, but the secondary/subview UIView (backView) does not rotate & all of its elements do not resize properly. Does anyone have suggestions on how to make the secondary UIView autoresize properly according to the rules I have set in Interface Builder?
In the end, the solution I found was simply to separate my UIViews into separate UIViewControllers, and make sure that any views that I wanted to be able to rotate only had one UIView.
If I understand correctly, at the time of rotation 'backView' has been removed from it's superview, yeah? If so, that's the cause of the problem. The autoresize property determines how the view resizes relative to it's superview. If it doesn't have a superview it won't resize.
Perhaps using [backView setHidden:YES] instead of [backView removeFromSuperview] will be sufficient for your needs.
I had the same problem, here is how I fixed it based on imaginaryboy's
suggestions (thanks!)
Add the backview to the viewcontroller at viewDidLoad and hide it at the same time. Show it when needed, Hide it again. Set the resizing of the backview to UIViewAutoresizingFlexibleWidth in IB (or code I guess, I used IB)
Not that this is the same problem, but I found a similar problem when adding 2 subviews in my application:didFinishLaunchingWithOptions method. Since your reference above is using [self.view addSubview:view], I would understand that to mean that self is not your UIWindow. When adding an additional view controller to your App Delegate window (UIWindow), the second view controller will NOT receive any rotation events and will never rotate. Only the first view controller added to UIWindow will rotate. See:Technical Q&A QA1688 I believe this also affects views added after the first view where the first view is later removed from the superview.
I ended up following the suggestion I read elsewhere to use separate views for each orientation, thereby eliminating the need to worry about resizing behavior. As always, YMMV.
Or; if you want to avoid an additional controller, you can achieve the same effect by setting view.frame in willRotateToInterfaceOrientation:: like so
if(UIInterfaceOrientationIsLandscape([[UIApplication sharedApplication] statusBarOrientation])) ;//set stubborn view.frame for landscape orientation
else ; //set stubborn view.frame for portrait orientation
Although it feels like a hack; it's simple.

iPhone : TabBar overlaps above UIScrollView

I have created an iPhone UI programmatically but I just can't figure out how to fit a view so that it doesn't get overlapped by the TabBar. Here's the ownership hierarchy:
- AppDelegate
UITabBarController
UINavigationController x
UITableViewController
UIViewController (with XIB)
UIScrollViewController (in the same XIB as parent)
The problem is that my TabBar hides a part of my UIScrollView (and my tableviews as well, but that's not important). I tried manipulating the scrollview content size and the view frame size but with no luck.
So far the best I could do was to add a 60px padding on the scrollview's content size like this:
[scrollView setContentSize:CGSizeMake(self.view.frame.size.width, self.view.frame.size.height+60)];
Thanks for your help!
Sounds like you may have to make sure your scrollView's frame is set properly first. The contentSize will determine the dimensions of the content of the scrollView. In other words how far you can scroll in each direction. Take a look at the scrollView in your nib and make sure the frame is the right size you need to fill.

iPhone UIScrollview: Button does not respond when located below 480 pixels on Scroll View's child UIView

I have built a view for an iPhone app in Interface Builder. It is a UIScrollview with a UIView and a UIButton on the UIView. The only code I have is setting the scroll view's contentSize to 320x550 in the viewDidLoad method of the xib's File Owner class. When the button is within the normal view area (320x480) the button responds as normal, but if is placed outside of those boundaries in Interface Builder the button will not respond when I scroll to it and click the button.
What am I missing? I figure it might be something I need to set on the UIView. But I am not sure what that is.
Your UIButton won't response even it's visible because it's not in the boundary of parent view. You can see object outside the boundary of its parent view because it's a default behavior of UIView to draw all subview (clipsToBounds = NO)
To see the truth, try this code.
UIView *yourUIView = ...
yourUIView.clipsToBounds = YES;
yourUIView.backgroundColor = [UIColor cyanColor];
You will no longer see your UIButton.
To fix this, enlarge your UIView.
I had the same problem as the person who posted the question. Thanks to the first answer, I had a hint as to what to do. I increased the height of the view by adjusting the frame. This, apparently must be done in code. Once this was done, however, the toolbar at the bottom was no longer visible. So before I adjust the height of the view, I grab the position of the tool bar. Then after adjusting the height of the view, I reset the position of the tool bar. Now all is good.