View table size and positioning won't change - iphone

I have a xib tableview controller and i can't get the size of the table view to shrink so that i may add additional things before the view(I would like to add some buttons). I try changing the frame in viewdidload and viewwillappear but nothing seams so work. I am using
self.tableView.frame = CGRectMake(0, 100, 320, 200);
but the view remains in place(just under the navigation bar). What am I doing wrong?

Why dont you resize in the xib tableView itself? What's preventing you to do that?
EDIT: Why cant you change the height in xib or x and y coordinates? Attaches image should help you do this easily in IB - (make sure to select your tableView and open the right hand sidebar to get this menu. Once right sidebar opens goto - Size Inspector & here you can do this.

I had the same problem and i realized that my tableView was inside another TableView with its own x and y (so probably i was not able to change it). So you have to make sure that your TableView is a subview of your view or is your main view

Use a UIViewController, drag and drop a UITableView in it, resize as per your wish and there you've got what you were looking for.

Related

How to make a scrollable view in iOS?

i am looking to create an "options" page for my application and because they are many , the screen of the phone is not enough to show.
So i need the user to be able to scroll down the view to see more options till the last. I know i should use the scrollview , but i dont know how.
All the tutorials i ve found are about scrolling all over the screen , zooming , scrolling from left to right , but nothing on how u can create a simple page scrolling up and down.
How exactly do i do that? Do i make many .nib files and somehow i connect them? Do i make a big .nib file?
Can someone guide me to a tutorial on that?
Use ContentSize property of UIScrollView to scroll what ever area you want. i.e.
take UIScrollView add it on UIView with exist height of iPhone. i.e. max 460.0
So ScrollView frame will be max (0,0,320.0,460.0).
Now after adidng ScrollView to View set ContentSize property to upto scrollable area.
[self.mainScrollView setContentSize:CGSizeMake(self.mainScrollView.frame.size.width, 1000.0)];
UIScrollView *mainScroll = [[[UIScrollView alloc]initWithFrame:CGRectMake(x,y,w,h)]autorelease];//scrollview width and height
mainScroll.scrollEnabled = YES;
mainScroll.userInteractionEnabled = YES;
mainScroll.showsVerticalScrollIndicator = YES;
mainScroll.contentSize = CGSizeMake(width,height);//width and height depends your scroll area
..........
//add subviews to your scrollview.....
[mainScroll addSubview:view1]
............
[mainScroll addSubview:view2]
..............
[mainScroll addSubview:view3]
[self.view addSubview:mainScroll];
Note :: contentSize property determines your scroll
area.Scrolling
enabled only if your scrollview content larger than scrollview height..
You could use a Table View with static Cells, that will scroll automatically if it needs to, much easier. Also with a Table View you can choose to scroll up, down, left, right, set bouncing etc from the Attributes Inspector.
Make only 1 nib file.
give height of scroll view large as you want.
then place your buttons , textfeild on scroll view
There are two ways :
make settings bundel for your app check this Press Me
to make UITableView with custom cells >> it is easy if you use
Interface Builder Press Me

UITableView not scrolling to the bottom

I have a UITableView (on a UIViewController) on which I want to ad an iAd banner on the top, but below a toolBar I already have on the top. I'm trying to shift the the tableView (in reference to the view) so I can locate the banner in the space left blank.
To check it ou, I create an action in which I shift the tableView frame:
-(IBAction)iAdAction:(id)sender{
self.tableViewConc.frame=CGRectMake(0, 94, 320, 367);}
where 94 is the summ of 44 from the toolbar and the 50 from the banner.
The action works correctly but then, I cannot scroll to the bottom of the tableView, when I try it, it bounces back. I've tried to change the height of the tableView in the same action ( 430 instead of 367, for instance) but it doesn't work. I've also tried it on IB, but it doesn't work either.
I feel that I'm missing something but I cannot remember what.
Any help?
Thanks in advance!
Not being able to scroll to the bottom of the tableview is usually a symptom of its height being too large. (i.e. it's cut off at the bottom)
Don't compute the height you need and put those numbers in your code. Just find out what it should be from the view hierarchy. For example, you might compute the height of your table view with CGRectGetHeight(self.view.bounds) - CGRectGetMaxY(self.iAdView), and the view's y origin with CGRectGetMaxY(self.iAdView) assuming that the iAd view and your table view are both subviews of self.view. Or, even better, just use autoresize masks or autolayout to keep the table view the right size.
You can try
self.tableView.contentInset = UIEdgeInsetsMake(0, 0, 44, 0);
I just had this embarrassing scenario where my UITableView would "bounce" but it wouldn't scroll to the bottom. For ME, the problem was that I was dynamically setting the row heights, and my very last cell was getting calculated with a cell height of -115 (yes, negative). Once I fixed that to return a positive number, my scrolling worked just fine.
Even we can achieve the same in storyboard.
Select tableView --> from the storyboard control click on 'add Missing constraints'. That will add the constraint to tableView and View.
That helped me to resolve this issue. Screenshot_Link
Check the number of the row that you can't see.
After in your viewDidLoad, add this method:
myTableView.contentInset = UIEdgeInsets(top: 0,left: 0,bottom: yourCellHeight * rowHeight,right: 0)
I hope I have been helpful

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.

UITableView details as a subview

I have a UITableView in iPhone with enough cell to make it scrollable.
I would like to have a subview display whenever I click on a cell, rather than using the navigation controller behaviour.
The problem is that I cannot calculate the CGRect exactly to have the subview always centered in page, because the CGRect is calculated from top of table, and if I scroll table and click cell, the subview will be added out of screen.
The solution could be easy, but I don't know if it's possible: identify the portion of the current viewable area of the UITableView and obtain in some way the frame and therefore origin and size, then build a subview based on such coordinates.
Do you think it's possible without writing not too much code ?
thanks
Leonardo
A simple solution is to not add your sub view as a subview of the UITableView but of its parent (or the main application window). So instead of doing something like:
[myTableView addSubview:mySubView];
do:
[[myTableView superview] addSubview:mySubView];

Resizing UITableView on RootController

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.