Well, I have some problems with border drawing in UILabel. Here is my snippet of code
CGRect frame = CGRectMake(10, 10, 320, 120);
UILabel *label = [[UILabel alloc] initWithFrame:frame];
label.textColor = [UIColor greenColor];
label.font = [UIFont fontWithName:#"Verdana" size:12];
label.textAlignment = UITextAlignmentCenter;
label.text = #"Some text to display";
label.layer.backgroundColor = [UIColor cyanColor].CGColor;
label.layer.borderColor = [UIColor redColor].CGColor;
[self.window addSubview:label];
[label release];label=nil;
I have QuartzCore included and I use iOS4.3 When I launch the app in sumulator text is displayed but not the border and background color.
What is wrong here ?
Looking in CALayer.h, we see that the default value for borderWidth is 0.0.
/* The width of the layer's border, inset from the layer bounds. The
* border is composited above the layer's content and sublayers and
* includes the effects of the `cornerRadius' property. Defaults to
* zero. Animatable. */
#property CGFloat borderWidth;
In order for the border to appear, you must set the borderWidth to something greater than zero.
You can set the background color on the label directly as so:
label.backgroundColor = [UIColor cyanColor];
To set a border, you need to set the width, which can be done like so:
label.layer.borderWidth = 2.0f;
Once you have set a border width, to set the color of the border on the label, you're setting the view's layer's border, which uses a CGColor, so you'll have to do this:
label.layer.borderColor = [UIColor redColor].CGColor;
And if you want to round the corners, you can add this:
label.layer.cornerRadius = 10.0f;
You don't need to set the background color. You really need to only set the borderWidth and borderColor.
label.layer.borderColor = [UIColor darkGrayColor].CGColor;
label.layer.borderWidth = 1.0;
Related
I've a label in a table cell and I wish to add padding to top,bottom,left and right.
CGRect initialFrame = CGRectMake(10,10,100,20);
UIEdgeInsets contentInsets = UIEdgeInsetsMake(5, 0, 5, 0);
CGRect padd = UIEdgeInsetsInsetRect(initialFrame, contentInsets);
self.rewardLabel = [[UILabel alloc] initWithFrame:padd];
self.rewardLabel.backgroundColor =[UIColor colorWithRed:0.192 green:0.373 blue:0.561 alpha:1];
self.rewardLabel.layer.cornerRadius = 5.0f;
self.rewardLabel.layer.masksToBounds = YES;
self.rewardLabel.textColor = [UIColor whiteColor];
self.rewardLabel.lineBreakMode = NSLineBreakByWordWrapping;
self.rewardLabel.numberOfLines = 1;
self.rewardLabel.font = [UIFont fontWithName:#"HelveticaNeue" size:14];
[self.contentView addSubview:self.rewardLabel];
But it seem like not working. Can anyone tell me how to do?
There are several ways on how to achieve this:
If you do not need a specific background color for your label you could just adjust the labels frame to add the padding (e.g. if your text should start 20px from the cell's left side, set the label's frame's x to 20).
To really add a padding, you could use a custom UILabel subclass and override its drawTextInRect: and intrinsicContentSize methods. (See this question for details)
If you just need a left and right padding you could use an NSAttributedString to add insets to UILabel:
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 200, 40)];
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
paragraphStyle.headIndent = 5.0;
paragraphStyle.firstLineHeadIndent = 5.0;
paragraphStyle.tailIndent = -5.0;
NSDictionary *attrsDictionary = #{NSParagraphStyleAttributeName: paragraphStyle};
label.attributedText = [[NSAttributedString alloc] initWithString:#"Your text" attributes:attrsDictionary];
I am taking text to UILabel which is inside a UItableViewCell(label text is coming from webData-so it varies in size).
I want to give a border for my label, which should fit the text width and height. I have created one, but it's not looking good.
Help me to improve my code.
**Also is there any way to get border with rounded corners ? **
Hey I am getting text inside the border like this, and the corners are not so rounded:
UILabel *cmntBoxlbl = [[UILabel alloc]initWithFrame:CGRectMake(58, 23, 250, 60)];
cmntBoxlbl.font=[UIFont fontWithName:#"Arial" size:12];
cmntBoxlbl.layer.borderColor = [UIColor darkGrayColor].CGColor;
cmntBoxlbl.layer.borderWidth = 1.0;
NSString *text = [NSString stringWithFormat:#"%#%#%#",#" ",[[self.DtlArray objectAtIndex:indexPath.row] objectForKey:#"comment"],#" "];
cmntBoxlbl.text = text;
cmntBoxlbl.textAlignment = UITextAlignmentCenter;
cmntBoxlbl.lineBreakMode = UILineBreakModeWordWrap;
[cmntBoxlbl setTextColor:[UIColor darkGrayColor]];
CGSize expectedLabelSize = [text sizeWithFont:cmntBoxlbl.font
constrainedToSize:cmntBoxlbl.frame.size
lineBreakMode:UILineBreakModeWordWrap];
CGRect newFrame = cmntBoxlbl.frame;
newFrame.size.height = expectedLabelSize.height;
cmntBoxlbl.frame = newFrame;
cmntBoxlbl.numberOfLines = 0;
[cmntBoxlbl sizeToFit];
[cell addSubview:cmntBoxlbl];
*also is there any way to get border with rounded corners ?? *
#import <QuartzCore/QuartzCore.h>
label.layer.borderWidth = 3;
label.layer.borderColor = [[UIColor blackColor] CGColor];
label.layer.cornerRadius = 5;
For rounded corner set.
[cmntBoxlbl.layer setCornerRadius:15];
Also add the QuartzCore framework and import the header:
#import <QuartzCore/QuartzCore.h>
I am trying to get a UITextView's layer's shadow to work in a UITableView header. I have a UIView that I am formatting everything in, and then setting the headerview equal to it.
UIView * view = [[UIView alloc] initWithFrame: CGRectMake(0, 0, self.tableView.frame.size.width, 450);
UIColor * baseColor = [[UIColor alloc] initWithRed: 45/255.0
green: 100/255.0
blue: 150/255.0
alpha: 1.0];
view.backgroundColor = baseColor;
...
UITextView * newCommentField = [[UITextView alloc] initWithFrame:CGRectMake(20, 230, 270, 120)];
newCommentField.text = #"New Comment";
newCommentField.tag = 3;
newCommentField.layer.shadowOffset = CGSizeMake(0, 3);
newCommentField.layer.shadowRadius = 5.0;
newCommentField.layer.shadowColor = [UIColor blackColor].CGColor;
newCommentField.layer.shadowOpacity = 0.8;
[view addSubview:newCommentField];
...
self.tableView.tableHeaderView = view;
Everything shows up properly in the view. However, the shadow is not appearing. I don't know what is going wrong here. I have even tried modifying the layer's frame and making it the size of the comment field, bigger and the same size.
You're not setting background color for newCommentField.
Try:
newCommentField.backgroundColor = [UIColor whiteColor];
You can do it this way also... Create a view (eg. bgView) of same size as your textView and add that textView as a subView of bgView, which will be added as subView of you header view. Apply the shadow effect to the bgView instead.
UIView *bgView=[[UIView alloc]initWithFrame:CGRectMake(20, 230, 270, 120)];
bgView.backgroundColor=[UIColor whiteColor];
bgView.layer.shadowOffset = CGSizeMake(0, 3);
bgView.layer.shadowRadius = 5.0;
bgView.layer.shadowColor = [UIColor blackColor].CGColor;
bgView.layer.shadowOpacity = 0.8;
[bgView addSubview:newCommentField];
[view addSubview:bgView];
I want to disable vertical scrolling from my UIScrollView if possible.. My code is like below.. Working fine except users can scroll up and down which shouldn't be there I believe.. Thanks in advance..
UIScrollView *scroll = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 100, self.view.frame.size.width, self.view.frame.size.height / 3)];
scroll.contentSize = CGSizeMake(scroll.contentSize.width,scroll.frame.size.height);
scroll.pagingEnabled = YES;
scroll.backgroundColor = [UIColor blackColor];
int xVal = 30;
NSInteger numberOfViews = 5;
for (int i = 0; i < numberOfViews; i++) {
UILabel *testLabel1 = [[UILabel alloc] initWithFrame:CGRectMake(xVal, 0, 90, 100)];
UILabel *testLabel2 = [[UILabel alloc] initWithFrame:CGRectMake(xVal, 20, 90, 100)];
UILabel *testLabel3 = [[UILabel alloc] initWithFrame:CGRectMake(xVal, 40, 90, 100)];
testLabel2.backgroundColor = [UIColor clearColor];
testLabel2.text =#"Test1";
testLabel2.textColor = [UIColor whiteColor];
testLabel2.font = [UIFont boldSystemFontOfSize:12];
testLabel1.backgroundColor = [UIColor clearColor];
testLabel1.text =#"Test2";
testLabel1.textColor = [UIColor whiteColor];
testLabel1.font = [UIFont boldSystemFontOfSize:12];
testLabel3.backgroundColor = [UIColor clearColor];
testLabel3.text =#"Test3";
testLabel3.textColor = [UIColor whiteColor];
testLabel3.font = [UIFont boldSystemFontOfSize:12];
xVal += 120;
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(xVal, 30, 150, 130)];
view.backgroundColor = [UIColor blackColor];
xVal += 200;
[scroll addSubview:testLabel1];
[scroll addSubview:testLabel2];
[scroll addSubview:testLabel3];
[scroll addSubview:view];
}
[self.view addSubview:scroll];
In my situation, I was unable to get the height of the scrollview (due to autolayout, I wasn't able to get the height in viewDidLoad). You can add this to the delegate method.
- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
self.scrollView.contentOffset = CGPointMake(self.scrollView.contentOffset.x, 0);
}
you must set your scrollview content height to the scroll view height
CGSize scrollableSize = CGSizeMake(scrollableWidth, yourScrollViewHeight);
[myScrollView setContentSize:scrollableSize];
Here may be a possible duplicate
disabling vertical scrolling in UIScrollView
or you can also try this:
self.scrollview.contentSize = CGSizeMake(self.scrollview.frame.size.width * number_of_items, 1);
Assuming it's an iPhone app, so the screen resolution is 320×480 .
Now you are setting your scroll view's height as self.view.frame.size.height / 3 .
Here your view's height is actually taken as 460 and not 480 (20px for staus bar).
So when you add the other view as subview to your scroll view, its frame goes out of the scroll's content view. So you need to manage this while setting your frames/content size.
Let me know if this works for you.
There is no problem with that simply change the contentSize of your UIScrollView and you are done.Increase its width size and its height should be as it is at present.Moreover you can also hide the vertical scrollers also.
scroll.showsVerticalScrollIndicator = NO;
scroll.contentSize = CGSizeMake(scroll.contentSize.width + xVal,scroll.frame.size.height);
You should do like this:
aScrollView.scrollsToTop = NO;
aScrollView.delegate = self;
aScrollView.contentSize = CGSizeMake(aScrollView.frame.size.width * X, aScrollView.frame.size.height/2);
In your xml file there are two properties are available for scrollview are horizontal scroll and vertical scroll. as per your requirement you can check or uncheck and if you want to stop vertical or horizontal scroll then you have to make same content size of scrollview with height or width of scrollview respectively
I'm diving into iOS development and I'm programmatically creating some labels, but I can't seem to set their background color to black. From what I read, it seems simple enough, here's my code...
UILabel *lbl = [[[UILabel alloc] initWithFrame:CGRectMake(x, y, width, height] autorelease];
[[lbl layer] setBorderColor:[[UIColor blackColor] CGColor]];
[[lbl layer] setBorderWidth:1.0];
[[lbl layer] setBackgroundColor:[[UIColor blackColor] CGColor]];
[[self view] addSubview:lbl];
When I do this, the border color and width work as expected, but the background color remains white. Am I forgetting to do something?
Thanks so much for your help!
A UILabel already has a .backgroundColor property, you don't need to tweak its layer...
lbl.backgroundColor = [UIColor blackColor];
setting background color of UILabel
[lbl.backgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:#"color_lightblue.png"]]];
setting TextColor of UILabel with image color
[label_Description setTextColor:[UIColor colorWithPatternImage:[UIImage imageNamed:#"color_lightgray.png"]]];
simple background color
lbl.backgroundColor = [UIColor blackColor];
swift 2
label.backgroundColor = UIColor.whiteColor()
other formula:
let label = UILabel(frame: CGRectMake(0, 0, view.frame.width, view.frame.height))
label.backgroundColor = UIColor.whiteColor()
label.textAlignment = NSTextAlignment.Center
label.text = message
label.numberOfLines = 2
label.font = UIFont.systemFontOfSize(12)
lbl.backgroundColor = [UIColor blackColor];
Use this
with one code you can set color
LabelObj.backgroundColor = [UIColor blackColor];