Scroll UILabel with UITableView - ios

UILabel *messageLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.height)];
messageLabel.text = CONNECTED;
messageLabel.textColor = [UIColor blackColor];
messageLabel.numberOfLines = 0;
messageLabel.textAlignment = NSTextAlignmentCenter;
[messageLabel sizeToFit];
self.TableView.backgroundView = messageLabel;
The last row of this code set backgroundView to my UILabel but it stays centered and if I scroll the table view, the message position stays fixed. How to solve this problem?
I want that the UILabel to follow the scroll event.

Just add your UILabel as a subview to your tableView and send it back.
[self.TableView addSubview:messageLabel];
[self.TableView sendSubviewToBack:messageLabel];
Now when you scroll the tableView, this view will also get scrolled.
Other code enhancements (Not related to the question)
You can initialize your label like this
UILabel *messageLabel = [[UILabel alloc] initWithFrame:self.view.bounds];

You can see the following tutorials of TableView:
swift: https://www.weheartswift.com/how-to-make-a-simple-table-view-with-ios-8-and-swift/
objective-c: http://www.makemegeek.com/uitableview-example-ios/
Basically,you should add your label inside a cell and it will work.

Related

How can I get the text to center in my scrollable UILabel?

The scrollable label works fine, but for some reason I cant get the text in the UILabel to center in the UIScrollView, it always stays left aligned. Here is an image of what I am talking about, and my code. (P.S. the UILabel is a subview of the UIScrollView, and the UIScrollView is a subview of the UITableViewCell.
scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(cell.frame.size.width/21.5, 25, cell.frame.size.width - 40 , 20)];
scrollView.showsHorizontalScrollIndicator = NO;
[cell addSubview:scrollView];
scrollLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, scrollView.frame.size.width, 20)];
scrollLabel.text = secondaryLabel.text;
scrollLabel.font = secondaryLabel.font;
scrollLabel.backgroundColor = [UIColor clearColor];
scrollLabel.textColor = [UIColor whiteColor];
scrollLabel.numberOfLines = 1;
scrollLabel.textAlignment = NSTextAlignmentCenter;
[scrollLabel sizeToFit];
[scrollView addSubview:scrollLabel];
scrollView.contentSize = CGSizeMake(scrollLabel.frame.size.width, 20);
I think the code you written for UILabel is pretty much right and the center TextAlignment is there but the problem is you need to pass the right X & Y for UILabel Frame's. For now they are getting set to 0-0 and are adding on the Scrollview's starting frame. This might can solve your problem.

Cant center UILabel in titleView of navigationItem iOS8

Im having trouble setting a programmatically allocated UILabel to be centered in my NavigationItem's titleView. Im even setting the NSAlignment to be NSAlignmentCenter. Here's an image of what it looks like:
As you can see.. I have no right UIBarButtonItem in use, but this shouldn't be keeping the text from being centered? Here's the code, in the viewDidLoad:
//Set the title of navBar----------
UILabel *navTitleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 320, 40)]; //0 0 320 10
navTitleLabel.backgroundColor = [UIColor clearColor];
navTitleLabel.textAlignment = NSTextAlignmentCenter;
navTitleLabel.textColor=[UIColor whiteColor];
navTitleLabel.text = #"IMG";
[navTitleLabel setFont: [UIFont fontWithName:#"BullettoKilla" size:16]];
self.navigationItem.titleView = navTitleLabel;
What am I doing wrong?
As pointed out by 0yeoj you have set the item width to 320. Try something smaller.
Try this
UILabel *navTitleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 50, 40)];

Add footer view UITableView

I have this code to add a footer view to my table view
UIView *footerView = [[UIView alloc] initWithFrame:CGRectMake(0.0f,0.0f,320.0f,80.0f)];
UILabel *tableFooter = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 20, 20)];
tableFooter.textColor = [UIColor blueColor];
tableFooter.backgroundColor = [self.tableView backgroundColor];
tableFooter.opaque = YES;
tableFooter.font = [UIFont boldSystemFontOfSize:15];
tableFooter.text = #"test";
[footerView addSubview:tableFooter];
self.tableView.tableFooterView = footerView;
but then I when I run this I do not see the label at the bottom of my code, I am it to my view, and then set my view as to footer, I see the extra space but not the label?
Not sure why this is happening?
Thanks

Cannot scroll when adding UIScrollView to UIView

I'm trying to add a scrollview to my UIView, and put a label, textview, image on it but the scroll bar doesn't show up and I can't scroll.
//faux view
UIView* fauxView = [[[UIView alloc] initWithFrame: CGRectMake(10, 10, 200, 200)]autorelease] ;
[self.bgView addSubview: fauxView];
//the new panel
self.bigPanelView = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, self.bgView.frame.size.width, self.bgView.frame.size.height)]autorelease];
self.bigPanelView.center = CGPointMake( self.bgView.frame.size.width/2, self.bgView.frame.size.height/2);
self.bigPanelView.backgroundColor = self.initialBackgroundColor;
UIScrollView * scroll = [[UIScrollView alloc] initWithFrame:self.bigPanelView.bounds];
[scroll setContentSize:CGSizeMake(200, 200)];
[self.bigPanelView addSubview:scroll];
scroll.showsVerticalScrollIndicator = YES;
// add label
UILabel *lblTitle = [[[UILabel alloc] initWithFrame:CGRectMake(0, 25, self.bgView.frame.size.width, 46)]autorelease];
// If I change the 25 to 235 the label will come under the screen but still I cannot scroll.
lblTitle.textAlignment = NSTextAlignmentCenter; // Align the label text in the center
lblTitle.backgroundColor = [UIColor clearColor];
lblTitle.text = self.initialTitle;
lblTitle.textColor = self.initialTitleColor;
lblTitle.font = [UIFont systemFontOfSize:31];
[scroll addSubview: lblTitle];
You have to make the scrollview's contentSize larger than the view:
[scroll setContentSize:CGSizeMake(200, 200)];
needs to be something like:
[scroll setContentSize:CGSizeMake(400, 400)];
Of course, make that the size of the content of whatever you're going to put the scroll view, and that way, it only scrolls if needs to.
For Scrolling - The scrollView contentSize should be larger then the scrollView frame.

How to disable UITableView header scroll?

I created a UITableView programmatically and now I want to add a fixed header to it.
As I the below code the header also scrolls with my tableview.
UILabel *label = [[[UILabel alloc]
initWithFrame:CGRectMake(0, 0, 320, 28)] autorelease];
label.backgroundColor = [UIColor darkGrayColor];
label.font = [UIFont boldSystemFontOfSize:15];
label.shadowColor = [UIColor colorWithWhite:0.0 alpha:0.8];
label.textAlignment = UITextAlignmentLeft;
label.textColor = [UIColor whiteColor];
label.text = #"my header";
myTable.tableHeaderView = label;
Is there a function which disables header scrolling?
Thank you
No, you need to either change the view to be a section header (where it will remain at the top of the tableview while that section is visible), or you need to make the header view a sibling to the tableview in the tableview's superview -- you can create a UIView just for the purpose of holding the header view and the table view.

Resources