I'm trying to create a simple circle view.
I did it before, and now for some reason the circle is not precise (image attached).
In my code i'm taking the height of the "sliderPin" view, and the half value of it goes for the cornerRadius of its layer.
I tried to take the constraint height value of the "sliderPin" view as well, but I got the same results.
* The width & height of the view are equal.
My code:
[self.sliderPin.layer setBorderColor:borderColor];
[self.sliderPin.layer setBorderWidth:2];
self.sliderPin.clipsToBounds = YES;
self.sliderPin.layer.masksToBounds = YES;
[setCornerRadius:CGRectGetHeight(self.sliderPin.frame) / 2];
Better to use UISlider, with given methods. It might solve your problem.
UIImage *minImage = [[UIImage imageNamed:#"slider_minimum.png"]
resizableImageWithCapInsets:UIEdgeInsetsMake(0, 5, 0, 0)];
UIImage *maxImage = [[UIImage imageNamed:#"slider_maximum.png"]
resizableImageWithCapInsets:UIEdgeInsetsMake(0, 5, 0, 0)];
UIImage *thumbImage = [UIImage imageNamed:#"thumb.png"];
[[UISlider appearance] setMaximumTrackImage:maxImage
forState:UIControlStateNormal];
[[UISlider appearance] setMinimumTrackImage:minImage
forState:UIControlStateNormal];
[[UISlider appearance] setThumbImage:thumbImage
forState:UIControlStateNormal];
For Height:
You can customise by inheriting UISlider and over-riding method
- (CGRect)trackRectForBounds:(CGRect)bounds {
CGRect rect = CGRectMake(0, 0, 100, 30);//change it to any size you want
return rect;
}
You can customise more by inheriting respective methods.
Thanks.
Make sure constraintsare not conflicting. If you are using auto layout, set sliderPin's width and height equal constraints or aspect ratio 1:1 might solve the problem.
Related
I've subclassed UISlider and increased the width by doing this:
-(CGRect)trackRectForBounds:(CGRect)bounds {
bounds.size.height = 50;
return bounds;
}
And changed the thumb image:
- (void)drawRect:(CGRect)rect {
// Drawing code
[self setThumbImage:[UIImage imageNamed:#"icon_circle"] forState:UIControlStateNormal];
}
But this is happening:
The minimum track image starts from the center. I want to make it start from the thumb end. So initially, till the thumb it should be blue and when I drag it till the end the whole slider should be blue but at the end of the slider, the slider is not curved. It has got sharped edges. What should I do to get this right?
Couldn't find much help so I made my own custom one instead. It's also available on GitHub. https://github.com/bhavukjain1/SlideToActionSlideriOS
Are you setting the following properties?
UIImage *minImage = [[UIImage imageNamed:#"slider_minimum.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 5, 0, 0)];
UIImage *maxImage = [[UIImage imageNamed:#"slider_maximum.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 0, 0, 5)];
UIImage *thumbImage = [UIImage imageNamed:#"sliderhandle.png"];
[[UISlider appearance] setMaximumTrackImage:maxImage forState:UIControlStateNormal];
[[UISlider appearance] setMinimumTrackImage:minImage forState:UIControlStateNormal];
[[UISlider appearance] setThumbImage:thumbImage forState:UIControlStateNormal];
}
if so, take a look at this tutorial of how to create a custom slider, it comes with a sample project, may be it's easier for you to find your error by comparing your implementation against a working one.
To solve the rectangular corners issue, in drawRect
self.layer.cornerRadius = 25;
self.clipsToBounds = YES;
To show the correct image while dragging, you need to set this as well:
[self setThumbImage:[UIImage imageNamed:#"icon_circle"] forState:UIControlStateHighlighted];
[slider setMaximumTrackTintColor: color]
has unexpected results in iOS 7.1 (the slider bar changes its position appearing at top instead of vertical center or disappears completely), while working fine with prior versions.
[slider setMinimumTrackTintColor: color]
does render the expected result.
This question might be related: UISlider setMaximumTrackTintColor,
but no answer so far.
Update:
I get this: instead of:
Update #2:
Using setMaximumTrackImage might work, but the solution I'm looking for is a way to set any random color and not a preexisting image.
Update #3:
This issue is still present in iOS 7.1.1.
Found this workaroud:
Create a 1x1px UIImage from a UIColor on the fly:
CGRect rect = CGRectMake(0, 0, 1, 1);
UIGraphicsBeginImageContextWithOptions(rect.size, NO, 0);
[color setFill];
UIRectFill(rect);
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
and then
[slider setMaximumTrackImage:image forState:UIControlStateNormal];
Looks like an expensive solution but it gets the job done.
Try this out:
UIImage *sliderLeftTrackImage = [[UIImage imageNamed:#"LeftImage.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 0, 0, 0)];
UIImage *sliderRightTrackImage = [[UIImage imageNamed:#"RightImage.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 0, 0, 0)];
[sliderName setMinimumTrackImage: sliderLeftTrackImage forState: UIControlStateNormal];
[sliderName setMaximumTrackImage: sliderRightTrackImage forState: UIControlStateNormal];
If you want to change thumb image the following code will work:
[sliderName setThumbImage:[UIImage imageNamed:#"ThumbImgName.png"] forState:UIControlStateNormal];
[sliderName setThumbImage:[UIImage imageNamed:#"ThumbImgName.png"] forState:UIControlStateHighlighted];
In same way, you can also use color instead of images.
I've created 2px images with the colour of slider track.
And then I set they as tracking images (here's with thumb image for iPad and iPhone)
UIImage *thumbImage = [UIImage imageNamed:#"slider"];
UIImage *trackImage;
if (isiPad) {
[[UISlider appearance] setThumbImage:thumbImage forState:UIControlStateNormal];
[[UISlider appearance] setThumbImage:thumbImage forState:UIControlStateHighlighted];
trackImage = [UIImage imageNamed:#"menu-bar-ipad"];
}
else {
[[UISlider appearance] setThumbImage:[self imageWithImage:thumbImage scaledToSize:CGSizeMake(27, 27)] forState:UIControlStateNormal];
[[UISlider appearance] setThumbImage:[self imageWithImage:thumbImage scaledToSize:CGSizeMake(27, 27)] forState:UIControlStateHighlighted];
trackImage = [UIImage imageNamed:#"menu-bar"];
}
[[UISlider appearance] setMinimumTrackImage:trackImage forState:UIControlStateNormal];
[[UISlider appearance] setMaximumTrackImage:trackImage forState:UIControlStateNormal];
And that's all. Same solution as msmq I guess. And you can see both ways how to make a large image - two images way and scaling way.
Update
Reported this bug and it's already well known. Hopefully they will fix it soon...
Maybe a little bit late, but - here is the answer
You should read description of setter:
The color used to tint the standard maximum track images. Setting this
property removes any custom maximum track images associated with the
slider.
Also this applicable only for maximum color, because minimum setter just change titntColor:
The color used to tint the standard minimum track images.
This mean that slider use some image for maximum track and if u just set tint color nothing will be changes (nothing can't be tinted).
Solution (thanks to #user623396):
UIImage *currentSliderMaximumImage = self.slider.currentMaximumTrackImage;
CGRect rect = CGRectMake(0, 0, currentSliderMaximumImage.size.width, currentSliderMaximumImage.size.height);
UIGraphicsBeginImageContextWithOptions(rect.size, NO, 0);
[[[DynamicUIService service] currentApplicationColor] setFill];
UIRectFill(rect);
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
[self.slider setMaximumTrackImage:image forState:UIControlStateNormal];
As result u will get
I have a problem positioning a textLabel and detailTextLabel into a custom UITableViewCell that has a UIImageView appearing behind the textLabel and detailTextLabel.
Refer to the image - it will make more sense
--> what you're looking a UITableView, where each bubble represents a different UITableViewCell.
Essentially, I am trying to fit the textLabel and detailTextLabel into the bubble you see by expanding the bubble dimensions. However, no matter what I try the bubble will not change it's width and height even if I change the UIImageView frame or bounds or contentMode.
Here is the relevant code in cellForRowAtIndexPath:
//Set font and style
cell.textLabel.backgroundColor = [UIColor clearColor];
cell.detailTextLabel.backgroundColor = [UIColor clearColor];
// Assign our own background image for the cell
UIImage *cellBackgroundImage = [UIImage imageNamed:#"Chat.png"];
UIImageView *cellBackgroundImageView = [[UIImageView alloc] initWithImage:cellBackgroundImage];
//[cellBackgroundImageView setBounds:CGRectMake(0, 0, 20, 20)];
//[cellBackgroundImageView setImage:cellBackgroundImage];
//cellBackgroundImageView.frame = CGRectMake(cellBackgroundImageView.frame.origin.x, cellBackgroundImageView.frame.origin.y, 20, 20);
//cellBackgroundImageView.bounds = CGRectMake(cellBackgroundImageView.frame.origin.x, cellBackgroundImageView.frame.origin.y, 0, 0);
cellBackgroundImageView.contentMode = UIViewContentModeScaleAspectFill;
cellBackgroundImageView.image = cellBackgroundImage;
cell.backgroundView = cellBackgroundImageView;
Any help would be appreciated.
Don't do it here, I did it by writing frame of image and label in LayoutSubviews method in custom cell class.
Just
-(void)layoutSubviews
{ setframe: for both UI components }
Dont use Aspect FIll, use either scaleToFill, or set image to image view using imageCapInsets .
- (UIImage *)resizableImageWithCapInsets:(UIEdgeInsets)capInsets resizingMode:(UIImageResizingMode)resizingMode
For your Image, it must be like
UIImage *cellBackgroundImage = [[UIImage imageNamed:#"Chat.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(20, 70, 40, 20) resizingMode:UIImageResizingModeStretch]
I'm trying to make a UIButton with an image above the text. To that end, I tried setting the edge insets of the button as so:
[button setImageEdgeInsets:UIEdgeInsetsMake(0.0f, 0.0f, 10, 0.0f)];
[button setTitleEdgeInsets:UIEdgeInsetsMake(10, 0.0, 0.0, 0.0)];
What I get is a button where the image is in the same place, and the text is squished all the way over to the side, in a space about one character wide.
How can I simply set the insets so I have the image above the text? Is that really so much to ask?
You just wrongly calculated edgeInSets.They are not there the way you think they are. Here's my test code.It did cost me a while to put image and title in the right place.
UIButton *tmp_testBtn = [[UIButton alloc] initWithFrame:CGRectMake(50, 200, 60, 40)];
tmp_testBtn.backgroundColor = [UIColor grayColor];
[tmp_testBtn setImageEdgeInsets:UIEdgeInsetsMake(0, 0, 20, 0)];
[tmp_testBtn setImage:[UIImage imageNamed:#"France"] forState:UIControlStateNormal];
[tmp_testBtn setTitleEdgeInsets:UIEdgeInsetsMake(20, -258, 0, 0)];
[tmp_testBtn setTitle:#"testbutton" forState:UIControlStateNormal];
CGRect contentRect = [tmp_testBtn contentRectForBounds:tmp_testBtn.bounds];
NSLog(#"contenRect:%f,%f,%f,%f",contentRect.origin.x,contentRect.origin.y,contentRect.size.width,contentRect.size.height);
CGRect titleRect = [tmp_testBtn titleRectForContentRect:contentRect];
NSLog(#"titleRect:%f,%f,%f,%f",titleRect.origin.x,titleRect.origin.y,titleRect.size.width,titleRect.size.height);
CGRect imageRect = [tmp_testBtn imageRectForContentRect:contentRect];
NSLog(#"imageRect:%f,%f,%f,%f",imageRect.origin.x,imageRect.origin.y,imageRect.size.width,imageRect.size.height);
[self.view addSubview:tmp_testBtn];
[tmp_testBtn release];
By the way, I won't do like this.I prefer customize a button with a UIImageView and a UILabel added on.
I have a UIButton and I am trying to set a resizable image as background. The image is 25X25 points in size. I use the following code to set the image.
UIImage *backgroundImage = [[UIImage imageNamed:#"barbutton_normal"] resizableImageWithCapInsets:UIEdgeInsetsMake(3, 2, 3, 2)];
[self setBackgroundImage:backgroundImage forState:UIControlStateNormal];
[self setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[self setTitleEdgeInsets:UIEdgeInsetsMake(10,10, 10, 10)];
self.layer.cornerRadius = 6.0;
self.layer.masksToBounds = YES;
But the button appears like this:
What am I doing wrong? Also how can I make the top and bottom portion of the button a little bigger so that it does not look crammed up with the text.