UITextView Background Color - ios

I am trying to get white text with a black background or transparent background for the UITextView in Xcode 5. There is no slider or setting for this in Xcode, must have been one in previous versions from what I can see in the questions here. but not anymore. I also have seen this
UItextView.backgroundColor = [UIColor clearColor];
as a way to fix it. But not sure where to put this as, if its even right. Thanks

Sure you can do it programmatically:
UITextView *txt = [[[UITextView alloc] initWithFrame: CGRectMake(10, 10, 100, 60)] autorelease];
[txt setBackgroundColor: [UIColor clearColor]];
[txt setTextColor: [UIColor whiteColor]];
but you can also accomplish this via the Attribute inspector of the graphic editor setting respectively the properties Color to 'White Color' and Background to 'Clear Color'.
This is the result with a custom background:

You should be write/set any property of your UITextView after initialization
_myTextViewName.backgroundColor = [UIColor clearColor]; // set clear backGround color or set as you want
_myTextViewName.textColor = [UIColor whiteColor]; // set white text color or set as you want

You can try this
UItextView *yourTextView = [[UITextView alloc] initWithFrame:CGRectMake(0, 0 ,320, 50)];
yourTextView.backgroundColor = [UIColor clearColor];
yourTextView.textColor = [UIColor whiteColor];
[self.view addSubView:yourTextView];

For swift:
#IBOutlet weak var textField: UITextField!
textField.backgroundColor = UIColor.clearColor()

Related

Animate UILabel to Change Colour?

I would like to make the text in my UILabel called coloursLabel change text colour by itself. I have tried the following method as another SO answer suggested (albeit for the backgroundColor) but it still doesn't change. Am I missing something silly?
UILabel *coloursLabel = [[UILabel alloc] init];
coloursLabel.text = #"This sentence is colourful!";
[coloursLabel sizeToFit];
coloursLabel.center = self.view.center;
coloursLabel.frame = CGRectOffset(coloursLabel.frame, timeForPage(6), 0);
[UIView animateWithDuration:2.0 animations:^{
coloursLabel.textColor = [UIColor greenColor];
coloursLabel.textColor = [UIColor redColor];
coloursLabel.textColor = [UIColor blueColor];
coloursLabel.textColor = [UIColor yellowColor];
coloursLabel.textColor = [UIColor blackColor];
} completion:NULL];
coloursLabel shows the correct text but the text is in black.
Any help would be much appreciated!
UILabel's textColor is not animatable. You could write your own Label class, using a CATextLayer as mask and animate its layer's backgroundColor.

removing uinavigationbar title margins

I modified my navigation bar as follows in app delegate:
NSDictionary *settings = #{
UITextAttributeFont : [UIFont fontWithName:#"impact" size:36.0],
UITextAttributeTextColor : [UIColor whiteColor],
UITextAttributeTextShadowColor : [UIColor clearColor],
UITextAttributeTextShadowOffset : [NSValue valueWithUIOffset:UIOffsetZero]};
[[UINavigationBar appearance] setTitleTextAttributes:settings];
But the font cuts down like this for the larger font. :
I tried doing this in viewWillAppear of my VC, :
UIView *newTitleView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];
[newTitleView setBackgroundColor:[UIColor blackColor]];
[self.navigationController.navigationBar addSubview:newTitleView];
Then I was going to align title to center. But that just doesn't seems right. Only thing I actually need is to remove margins at top and bottom of the title Label. How do I go about it.
Try this code and don't set setTitleTextAttributes
UILabel *titleView = (UILabel *)self.navigationItem.titleView;
if (!titleView) {
titleView = [[UILabel alloc] initWithFrame:CGRectZero];
titleView.backgroundColor = [UIColor clearColor];
titleView.font = [UIFont boldSystemFontOfSize:20.0];
titleView.shadowColor = [UIColor colorWithWhite:0.0 alpha:0.5];
titleView.textColor = [UIColor yellowColor]; // Change to desired color
self.navigationController.navigationItem.titleView = titleView;
[titleView release];
}
titleView.text = title;
[titleView sizeToFit];
Well the easiest way i would suggest is to use a UIView with label and button customised for the requirement and use it,not on navigation bar.
mnavigation bar height customization is the trouble that the height is fixed and the subview also it may affect .So I suggest to go with a custom header view subclassed with UIView
You can subclass to the UILabel and override drawTextInRect: like this:
- (void)drawTextInRect:(CGRect)rect {
UIEdgeInsets insets = {0, 5, 0, 5};
return [super drawTextInRect:UIEdgeInsetsInsetRect(rect, insets)];
}
For more useful link you can find
here

Setting UITableView backgroundColor in universal app (iOS 5)

I have to set the backgroundColor property of a UITableView to a certain color in my universal app. If I write this...
self.tableView.backgroundColor = [UIColor colorWithRed:146.0f green:197.0f blue:240.0f alpha:1.0f];
...it doesn't work on iPhone nor iPad (background results white).
If I use a standard color, instead...
self.tableView.backgroundColor = [UIColor greenColor];
...it works on iPhone but not on iPad.
I tried other solutions suggested on SO (backgroundView to nil/clearColor, etc.), but none of those works on iOS SDK 5. Can you help me?
You need to divide each color value to 255.
Your color will be:
[UIColor colorWithRed:146/255.0 green:197/255.0 blue:240/255.0 alpha:1.0];
Instead of changing the background color, you can set a backgroundView (with the background color that you like) for the tableView.
UIView *bgView = [[UIView alloc] initWithFrame:self.tableView.bounds];
bgView.backgroundColor = [UIColor redColor];
self.tableView.backgroundView = bgView;
Are you using a navigation controller?
Try this:
self.tableView.backgroundColor = [UIColor clearColor];
[self.tableView setSeparatorColor:[UIColor clearColor]];
self.navigationController.view.backgroundColor = [UIColor greenColor];
Thats what I use with iOS5 and an universal app.

Changing the background color of a UILabel within a UITableViewCell

A UITableViewCell comes "pre-built" with a UILabel as its one and only subview after you've init'ed it. I'd really like to change the background color of said label, but no matter what I do the color does not change. The code in question:
UILabel* label = (UILabel*)[cell.contentView.subviews objectAtIndex:0];
label.textColor = [UIColor whiteColor];
label.backgroundColor = [UIColor darkGrayColor];
label.opaque = YES;
Your code snippet works fine for me, but it must be done after the cell has been added to the table and shown, I believe. If called from the initWithFrame:reuseIdentifier:, you'll get an exception, as the UILabel subview has not yet been created.
Probably the best solution is to add your own UILabel, configured to your standards, rather than relying on this (very rickety) path to the built-in one.
This doesn't work because the UITableViewCell sets its label backgroundColors in the layoutSubviews method.
If you want to change the color of the built-in textLabel or detailTextLabel, subclass the UITableViewCell and override layoutSubviews. Call the super implementation, THEN change the backgroundColor property to what you want.
- (void) layoutSubviews
{
[super layoutSubviews];
self.textLabel.backgroundColor = [UIColor redColor];
}
Add your own label to the contentView when you are allocating the cell, rather than relying on the extraction of the built in one. Then you can control all values:
UILabel* label = [[[UILabel alloc] init] autorelease];
label.textColor = [UIColor whiteColor];
label.backgroundColor = [UIColor darkGrayColor];
label.opaque = YES;
[cell.contentView addSubview:label];
for (UIView *views in views.subviews)
{
UILabel* temp = (UILabel*)[views.subviews objectAtIndex:0];
temp.textColor = [UIColor whiteColor];
temp.shadowColor = [UIColor blackColor];
temp.shadowOffset = CGSizeMake(0.0f, -1.0f);
}

iPhone Navigation Bar Title text color

It seems the iOS Navigation Bar title color is white by default. Is there a way to change it to a different color?
I am aware of the navigationItem.titleView approach using an image. Since my design skills are limited and I failed to get the standard glossy, I prefer changing the text color.
Any insight would be much appreciated.
Modern approach
The modern way, for the entire navigation controller… do this once, when your navigation controller's root view is loaded.
[self.navigationController.navigationBar setTitleTextAttributes:
#{NSForegroundColorAttributeName:[UIColor yellowColor]}];
However, this doesn't seem have an effect in subsequent views.
Classic approach
The old way, per view controller (these constants are for iOS 6, but if want to do it per view controller on iOS 7 appearance you'll want the same approach but with different constants):
You need to use a UILabel as the titleView of the navigationItem.
The label should:
Have a clear background color (label.backgroundColor = [UIColor clearColor]).
Use bold 20pt system font (label.font = [UIFont boldSystemFontOfSize: 20.0f]).
Have a shadow of black with 50% alpha (label.shadowColor = [UIColor colorWithWhite:0.0 alpha:0.5]).
You'll want to set the text alignment to centered as well (label.textAlignment = NSTextAlignmentCenter (UITextAlignmentCenter for older SDKs).
Set the label text color to be whatever custom color you'd like. You do want a color that doesn't cause the text to blend into shadow, which would be difficult to read.
I worked this out through trial and error, but the values I came up with are ultimately too simple for them not to be what Apple picked. :)
If you want to verify this, drop this code into initWithNibName:bundle: in PageThreeViewController.m of Apple's NavBar sample. This will replace the text with a yellow label. This should be indistinguishable from the original produced by Apple's code, except for the color.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self)
{
// this will appear as the title in the navigation bar
UILabel *label = [[[UILabel alloc] initWithFrame:CGRectZero] autorelease];
label.backgroundColor = [UIColor clearColor];
label.font = [UIFont boldSystemFontOfSize:20.0];
label.shadowColor = [UIColor colorWithWhite:0.0 alpha:0.5];
label.textAlignment = NSTextAlignmentCenter;
// ^-Use UITextAlignmentCenter for older SDKs.
label.textColor = [UIColor yellowColor]; // change this color
self.navigationItem.titleView = label;
label.text = NSLocalizedString(#"PageThreeTitle", #"");
[label sizeToFit];
}
return self;
}
Edit: Also, read Erik B's answer below. My code shows the effect, but his code offers a simpler way to drop this into place on an existing view controller.
I know this is a pretty old thread, but I think it would be useful to know for new users that iOS 5 brings a new property for establishing title properties.
You can use UINavigationBar's setTitleTextAttributes for setting the font, color, offset, and shadow color.
In addition you can set the same default UINavigationBar's Title Text Attributes for all the UINavigationBars throughout your application.
For example like so:
NSDictionary *navbarTitleTextAttributes = [NSDictionary dictionaryWithObjectsAndKeys:
[UIColor whiteColor],UITextAttributeTextColor,
[UIColor blackColor], UITextAttributeTextShadowColor,
[NSValue valueWithUIOffset:UIOffsetMake(-1, 0)], UITextAttributeTextShadowOffset, nil];
[[UINavigationBar appearance] setTitleTextAttributes:navbarTitleTextAttributes];
In iOS 5 you can change the navigationBar title color in this manner:
navigationController.navigationBar.titleTextAttributes = #{NSForegroundColorAttributeName: [UIColor yellowColor]};
Based on Steven Fisher's answer I wrote this piece of code:
- (void)setTitle:(NSString *)title
{
[super setTitle:title];
UILabel *titleView = (UILabel *)self.navigationItem.titleView;
if (!titleView) {
titleView = [[UILabel alloc] initWithFrame:CGRectZero];
titleView.backgroundColor = [UIColor clearColor];
titleView.font = [UIFont boldSystemFontOfSize:20.0];
titleView.shadowColor = [UIColor colorWithWhite:0.0 alpha:0.5];
titleView.textColor = [UIColor yellowColor]; // Change to desired color
self.navigationItem.titleView = titleView;
[titleView release];
}
titleView.text = title;
[titleView sizeToFit];
}
The advantage of this code, besides dealing with the frame properly, is that if you change the title of your controller the custom title view will also get updated. No need to update it manually.
Another big advantage is that it makes it really simple to enable custom title color. All you need to do is to add this method to the controller.
Most of the above suggestions are deprecated now, for iOS 7 use -
NSDictionary *textAttributes = [NSDictionary dictionaryWithObjectsAndKeys:
[UIColor whiteColor],NSForegroundColorAttributeName,
[UIColor whiteColor],NSBackgroundColorAttributeName,nil];
self.navigationController.navigationBar.titleTextAttributes = textAttributes;
self.title = #"Title of the Page";
Also, checkout the NSAttributedString.h for various text properties that could be set.
In IOS 7 and 8, you can change the Title's color to let's say green
self.navigationController.navigationBar.titleTextAttributes = [NSDictionary dictionaryWithObject:[UIColor greenColor] forKey:NSForegroundColorAttributeName];
To keep the question up-to-date, I'll add Alex R. R. solution, but in Swift:
self.navigationController.navigationBar.barTintColor = .blueColor()
self.navigationController.navigationBar.tintColor = .whiteColor()
self.navigationController.navigationBar.titleTextAttributes = [
NSForegroundColorAttributeName : UIColor.whiteColor()
]
Which results to:
Swift Version
I found most of you guys presented the answers of Objective_C version
I would like to implement this function by using Swift for anyone who needs it.
In ViewDidload
1.To make NavigationBar background becomes color (for example: BLUE)
self.navigationController?.navigationBar.barTintColor = UIColor.blueColor()
2.To make NavigationBar background becomes Image (for example : ABC.png)
let barMetrix = UIBarMetrics(rawValue: 0)!
self.navigationController?.navigationBar
.setBackgroundImage(UIImage(named: "ABC"), forBarMetrics: barMetrix)
3.To change NavigationBar title (for example :[Font:Futura,10] [Color:Red])
navigationController?.navigationBar.titleTextAttributes = [
NSForegroundColorAttributeName : UIColor.redColor(),
NSFontAttributeName : UIFont(name: "Futura", size: 10)!
]
(hint1: don't forget the "!" mark after the UIFont)
(hint2: there are lots of attributes of the title text, command click
the "NSFontAttributeName" you can enter the class and view keyNames
and the Objects types they required)
I hope I can help!:D
Method 1, set it in IB:
Method 2, one line of code:
navigationController?.navigationBar.barTintColor = UIColor.blackColor()
The solution by tewha works well if you are trying to change the color on a page, but I want to be able to change the color on every page. I made some small modifications so that it would work for all pages on a UINavigationController
NavigationDelegate.h
//This will change the color of the navigation bar
#import <Foundation/Foundation.h>
#interface NavigationDelegate : NSObject<UINavigationControllerDelegate> {
}
#end
NavigationDelegate.m
#import "NavigationDelegate.h"
#implementation NavigationDelegate
- (void)navigationController:(UINavigationController *)navigationController
willShowViewController:(UIViewController *)viewController animated:(BOOL)animated{
CGRect frame = CGRectMake(0, 0, 200, 44);//TODO: Can we get the size of the text?
UILabel* label = [[[UILabel alloc] initWithFrame:frame] autorelease];
label.backgroundColor = [UIColor clearColor];
label.font = [UIFont boldSystemFontOfSize:20.0];
label.shadowColor = [UIColor colorWithWhite:0.0 alpha:0.5];
label.textAlignment = UITextAlignmentCenter;
label.textColor = [UIColor yellowColor];
//The two lines below are the only ones that have changed
label.text=viewController.title;
viewController.navigationItem.titleView = label;
}
#end
From iOS 5 onwards we have to set title text color and font of navigation bar using titleTextAttribute Dictionary(predefined dictionary in UInavigation controller class reference).
[[UINavigationBar appearance] setTitleTextAttributes:
[NSDictionary dictionaryWithObjectsAndKeys:
[UIColor blackColor],UITextAttributeTextColor,
[UIFont fontWithName:#"ArialMT" size:16.0], UITextAttributeFont,nil]];
Short and sweet.
[[[self navigationController] navigationBar] setTitleTextAttributes:#{NSForegroundColorAttributeName: [UIColor redColor]}];
Use the code below in any view controller viewDidLoad or viewWillAppear method.
- (void)viewDidLoad
{
[super viewDidLoad];
//I am using UIColor yellowColor for an example but you can use whatever color you like
self.navigationController.navigationBar.titleTextAttributes = #{NSForegroundColorAttributeName: [UIColor yellowColor]};
//change the title here to whatever you like
self.title = #"Home";
// Do any additional setup after loading the view.
}
This is my solution based upon Stevens
Only real difference is I put some handling in for adjust the position if depending on the text length, seems to be similar to how apple do it
UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(([self.title length] < 10 ? UITextAlignmentCenter : UITextAlignmentLeft), 0, 480,44)];
titleLabel.backgroundColor = [UIColor clearColor];
titleLabel.font = [UIFont boldSystemFontOfSize: 20.0f];
titleLabel.shadowColor = [UIColor colorWithWhite:0.0 alpha:0.5];
titleLabel.textAlignment = ([self.title length] < 10 ? UITextAlignmentCenter : UITextAlignmentLeft);
titleLabel.textColor = [UIColor redColor];
titleLabel.text = self.title;
self.navigationItem.titleView = titleLabel;
[titleLabel release];
You may want to adjust the 10 value depending on your font size
Swift 4 & 4.2 version:
self.navigationController.navigationBar.titleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.green]
I ran into the problem with my nav buttons throwing the text out of center (when you only have one button). To fix that I just changed my frame size like so:
CGRect frame = CGRectMake(0, 0, [self.title sizeWithFont:[UIFont boldSystemFontOfSize:20.0]].width, 44);
I've customized the navigationBar's background image and left button item, and the gray title not fit the background. Then I use:
[self.navigationBar setTintColor:[UIColor darkGrayColor]];
to change the tint color to gray. And the title is white now! That's what I want.
Hope to help also :)
It's recommended to set self.title as this is used while pushing child navbars or showing title on tabbars.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// create and customize title view
self.title = NSLocalizedString(#"My Custom Title", #"");
UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectZero];
titleLabel.text = self.title;
titleLabel.font = [UIFont boldSystemFontOfSize:16];
titleLabel.backgroundColor = [UIColor clearColor];
titleLabel.textColor = [UIColor whiteColor];
[titleLabel sizeToFit];
self.navigationItem.titleView = titleLabel;
[titleLabel release];
}
}
This is a pretty old thread but I think of providing answer for setting Color, Size and Vertical Position of Navigation Bar Title for iOS 7 and above
For Color and Size
NSDictionary *titleAttributes =#{
NSFontAttributeName :[UIFont fontWithName:#"Helvetica-Bold" size:14.0],
NSForegroundColorAttributeName : [UIColor whiteColor]
};
For Vertical Position
[[UINavigationBar appearance] setTitleVerticalPositionAdjustment:-10.0 forBarMetrics:UIBarMetricsDefault];
Set Title and assign the attributes dictionary
[[self navigationItem] setTitle:#"CLUBHOUSE"];
self.navigationController.navigationBar.titleTextAttributes = titleAttributes;
This works for me in Swift:
navigationController?.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName:UIColor.white]
self.navigationItem.title=#"Extras";
[self.navigationController.navigationBar setTitleTextAttributes: [NSDictionary dictionaryWithObjectsAndKeys:[UIFont fontWithName:#"HelveticaNeue" size:21], NSFontAttributeName,[UIColor whiteColor],UITextAttributeTextColor,nil]];
Use like this for Orientation support
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0,0,320,40)];
[view setBackgroundColor:[UIColor clearColor]];
[view setAutoresizingMask:UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight ];
UILabel *nameLabel = [[UILabel alloc] init];
[nameLabel setFrame:CGRectMake(0, 0, 320, 40)];
[nameLabel setBackgroundColor:[UIColor clearColor]];
[nameLabel setAutoresizingMask:UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin |UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleLeftMargin];
[nameLabel setTextColor:[UIColor whiteColor]];
[nameLabel setFont:[UIFont boldSystemFontOfSize:17]];
[nameLabel setText:titleString];
[nameLabel setTextAlignment:UITextAlignmentCenter];
[view addSubview:nameLabel];
[nameLabel release];
self.navigationItem.titleView = view;
[view release];
to set font size of title i have used following conditions.. maybe helpfull to anybody
if ([currentTitle length]>24) msize = 10.0f;
else if ([currentTitle length]>16) msize = 14.0f;
else if ([currentTitle length]>12) msize = 18.0f;
An update to Alex R. R.'s post using the new iOS 7 text attributes and modern objective c for less noise:
NSShadow *titleShadow = [[NSShadow alloc] init];
titleShadow.shadowColor = [UIColor blackColor];
titleShadow.shadowOffset = CGSizeMake(-1, 0);
NSDictionary *navbarTitleTextAttributes = #{NSForegroundColorAttributeName:[UIColor whiteColor],
NSShadowAttributeName:titleShadow};
[[UINavigationBar appearance] setTitleTextAttributes:navbarTitleTextAttributes];
I do believe proper way to set the colour of UINavigationBar is:
NSDictionary *attributes=[NSDictionary dictionaryWithObjectsAndKeys:[UIColor redColor],UITextAttributeTextColor, nil];
self.titleTextAttributes = attributes;
Code above is written is subclass on UINavigationBar, obviously works without subclassing as well.
This is one of those things that are missing. Your best bet is to create your own custom Navigation Bar, add a text box, and manipulate the color that way.
After encountering the same problem (as others) of the label that moves when we insert a button in the navBar (in my case i have a spinner that i replace with a button when the date is loaded), the above solutions didn't work for me, so here is what worked and kept the label at the same place all the time:
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self)
{
// this will appear as the title in the navigation bar
//CGRect frame = CGRectMake(0, 0, [self.title sizeWithFont:[UIFont boldSystemFontOfSize:20.0]].width, 44);
CGRect frame = CGRectMake(0, 0, 180, 44);
UILabel *label = [[[UILabel alloc] initWithFrame:frame] autorelease];
label.backgroundColor = [UIColor clearColor];
label.font = [UIFont boldSystemFontOfSize:20.0];
label.shadowColor = [UIColor colorWithWhite:0.0 alpha:0.5];
label.textAlignment = UITextAlignmentCenter;
label.textColor = [UIColor yellowColor];
self.navigationItem.titleView = label;
label.text = NSLocalizedString(#"Latest Questions", #"");
[label sizeToFit];
}
return self;
You should call [label sizeToFit]; after setting the text to prevent strange offsets when the label is automatically repositioned in the title view when other buttons occupy the nav bar.
Can use this method in appdelegate file and can use at every view
+(UILabel *) navigationTitleLable:(NSString *)title
{
CGRect frame = CGRectMake(0, 0, 165, 44);
UILabel *label = [[[UILabel alloc] initWithFrame:frame] autorelease];
label.backgroundColor = [UIColor clearColor];
label.font = NAVIGATION_TITLE_LABLE_SIZE;
label.shadowColor = [UIColor whiteColor];
label.numberOfLines = 2;
label.lineBreakMode = UILineBreakModeTailTruncation;
label.textAlignment = UITextAlignmentCenter;
[label setShadowOffset:CGSizeMake(0,1)];
label.textColor = [UIColor colorWithRed:51/255.0 green:51/255.0 blue:51/255.0 alpha:1.0];
//label.text = NSLocalizedString(title, #"");
return label;
}
titleTextAttributes
Display attributes for the bar’s title text.
#property(nonatomic, copy) NSDictionary *titleTextAttributes
Discussion
You can specify the font, text color, text shadow color, and text shadow offset for the title in the text attributes dictionary, using the text attribute keys described in NSString UIKit Additions Reference.
Availability
Available in iOS 5.0 and later.
Declared In
UINavigationBar.h

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