I have an image in a UIView.
On top of it I have drawn a blue, horizontal line with:
UIView *lineViewHorizon = [[UIView alloc] initWithFrame:CGRectMake(0, pageTopMargin+inthorizon, self.view.bounds.size.width, 2)];
lineViewHorizon.backgroundColor = [UIColor blueColor];
[self.view addSubview:lineViewHorizon];
How do I remove this line so the picture appears without the line in front of it.
Clearly using clearColor does nothing :-)
Do I need to delete the layer and if so how?
[lineViewHorizon removeFromSuperview]
Related
I have a UIView in which I define it's border in the following manner:
self.layer.borderColor = [UIColor blackColor].CGColor;
self.layer.borderWidth = 3;
I attach a subview to this UIView, and when I move the subview over the border, it goes underneath it. Is this the intended behavior? Is there anyway to make the subview go on top of it?
According to the Apple specification: It is composited above the receiver’s contents and sublayers.
So, the border will always be above of all your subviews, even if you bring your subview to the front and so on.
So I make a background view to fake the border.
E.g.:
UIView *backgroundView = [[UIView alloc] initWithFrame:CGRectMake(100, 100, 200, 200)];
backgroundView.backgroundColor = [UIColor blackColor];
backgroundView.clipsToBounds = NO;
UIView *bView = [[UIView alloc] initWithFrame:CGRectInset(backgroundView.bounds, 3, 3)];
bView.backgroundColor = [UIColor redColor];
UIView *cView = [[UIView alloc] initWithFrame:CGRectMake(-50, -50, 100, 100)];
cView.backgroundColor = [UIColor yellowColor];
[bView addSubview:cView];
[backgroundView addSubview:bView];
[self.window addSubview:backgroundView];
and the effect:
Depending on your view structure, it might be easier to add the subview to the parent of your main view. It can then overlap the main view and will overlay the border as you requested.
Did you try setting the superview's 'clipsToBounds' property to YES? This is set to NO by default for performance reasons, but setting it to yes might give you the effect you are looking for.
Insert layer at specific position that suits you:
self.layer.insertSublayer(sublayer, at: 0)
I added a bottom border to a uitableviewcell programmatically (iPhone - Create custom UITableViewCell top and bottom borders):
UIView *bottomLineView = [[UIView alloc] initWithFrame:CGRectMake(0, cell.bounds.size.height, self.view.bounds.size.width, 1)];
bottomLineView.backgroundColor = [UIColor grayColor];
[cell.contentView addSubview:bottomLineView];
It's not displaying on an ipad unless you highlight it. All the other cells below and above it have the background color set to clear.. It displays fine on the iPhone
Move the line one pixel up. Right now it's outside of the frame, getting overlayed by the next cell.
UIView *bottomLineView = [[UIView alloc] initWithFrame:CGRectMake(0,
cell.bounds.size.height - 1,
self.view.bounds.size.width,
1)];
I am using following code for adding border for UIButton,it works fine,But the border appears outside UIButton area.How to add border inside UIbutton area.Please help me..
[[button1 layer] setBorderWidth:7.0];
[[button1 layer] setBorderColor:[UIColor redColor].CGColor];
There is no direct way of adding an inner border for a UIView. However, you can add a subview to it. Something like this: (Implement the below method in your .m file).
-(void)setInnerBorderFor:(UIView *)aView withFloatVal:(CGFloat)aFloatVal
{
UIView *borderView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, aView.frame.size.width, aView.frame.size.height)];
borderView.backgroundColor = [UIColor clearColor];
borderView.layer.borderWidth = aFloatVal;
borderView.layer.borderColor = [UIColor blackColor].CGColor;
[aView addSubview:borderView];
}
And then, you can call :
[self setInnerBorderFor:button1 withFloatVal:7.0f];
I always use your same method to draw borders.
If you want to draw borders inside you could use a background image.
[button1 setBackgroundImage:[UIImage imageNamed:#"button1_bckg.png"]
forState:UIControlStateNormal];
So, when I do this with a regular old view:
UIView *topBlock = [[UIView alloc] initWithFrame:CGRectMake(0,-frameSize.height, frameSize.width, frameSize.height/2)];
[viewController.view addSubview:topBlock];
topBlock.autoresizesSubviews = NO;
topBlock.clipsToBounds = YES;
UIImage *topImage = [UIImage imageNamed:#"BloktLayout"];
UIImageView *topImageView = [[UIImageView alloc] initWithImage:topImage];
topImageView.frame = viewController.view.frame;
[topBlock addSubview:topImageView];
I get the nice old image where I want it, in the top view. But the middle view is a UILabel, and when I try the same thing:
UILabel *midBar = [[UILabel alloc] initWithFrame:CGRectMake(midBarOrigin.x, midBarOrigin.y, midBarWidth, midBarHeight)];
midBar.text = #"Blokt";
midBar.textColor = [UIColor blackColor];
midBar.textAlignment = NSTextAlignmentRight;
midBar.font = [UIFont fontWithName:#"HelveticaNeue-UltraLight" size:80.0f];
[viewController.view addSubview:midBar];
midBar.autoresizesSubviews = NO;
midBar.clipsToBounds = YES;
UIImage *midImage = [UIImage imageNamed:#"BloktLayout"];
UIImageView *midImageView = [[UIImageView alloc] initWithImage:midImage];
midImageView.frame = viewController.view.frame;
[midBar addSubview:midImageView];
I don't see any image at all in the UILabel. Any help?
Seems like the issue is related to your frames.
Tough to say without additional info. Can you post viewController.view.frame, frameSize, and midBarOrigin / midBarWidth / midBarHeight?
In the second codeblock, midBar.clipsToBounds == YES, but it looks like the midImageView.frame is likely very different / outside of midBar.frame in which case it wouldn't be visible.
Edit Some screenshots would help but aren't necessary
Edit 2 Note that subviews' origin points are always relative to the coordinate system of their superview, never relative to the coordinate system of any other view in the view heierarchy. This is likely the heart of the issue here. If you do want to convert CGPoints or CGRects from one coordinate system to another there are methods on UIView such as convertRect: and convertPoint: etc.
Interface Builder doesn't even let you add a control inside of a UILabel.
Instead, if you wish to group multiple controls, you can add them both as subviews of a UIView.
In other words, your image view and label can share the same superview, but the image view cannot be a subview of the label.
If they share the same superview, you can position the image view behind the label, and it should appear "through" the label as long as the label's background is clear.
Simple Way to do.....
You can add UIImageView, UILabel as subview of cell.textLabel
UIImageView *statusImage = [[UIImageView alloc] initWithFrame:CGRectMake(0, 4, 8, 8)];<br/>statusImage.backgroundColor = [UIColor redColor];<br/>
statusImage.layer.cornerRadius = 4;<br/>
statusImage.clipsToBounds = YES;<br/>
[cell.textLabel addSubview:statusImage];<br/>
UILabel *Lbl = [[UILabel alloc] initWithFrame:CGRectMake(15, 0, cell.textLabel.frame.size.width - 15, cell.textLabel.frame.size.height)];<br/>
Lbl.text = #"xyz";<br/>
[cell.textLabel addSubview:Lbl];<br/>
I just had this problem as well.
I found that ImageView was behind the label.
When I replaced label with UIView, it works properly.
I am having trouble adding a subview above the CALayer of its parent view.
I tried to attach an image to show what i mean but i dont have enough reputation so here is a link to the image:
http://imageshack.us/photo/my-images/843/img0219u.png/
Part of the subview is obscured by the parent views border.
How can i make the subview appear over the top of the parent views layer?
Any help is appreciated.
Here is my code if it helps:
Code for adding layer:
UIView *student = [[UIView alloc] initWithFrame:CGRectMake(50, 50, 100, 100)];
student.backgroundColor = [UIColor grayColor];
CALayer *studentLayer = [[CALayer alloc] init];
studentLayer.borderColor = [UIColor grayColor].CGColor;
studentLayer.borderWidth = 5;
student.layer.borderColor = studentLayer.borderColor;
student.layer.borderWidth = studentLayer.borderWidth;
Code for adding subview:
UILabel *ilp = [[UILabel alloc] initWithFrame:(CGRectMake(-20, -10, 40, 20))];
ilp.text = #"ILP";
ilp.backgroundColor = [UIColor yellowColor];
ilp.textColor = [UIColor blackColor];
ilp.textAlignment = NSTextAlignmentCenter;
[student addSubview:ilp];
Thats not possible so far, The best solution i can think of is that add both the subview and its parent view inside another view than its just a matter of reordering two subviews, so that your subview is above the other and its border.
Hope that help!