I have a UIToolbar in which I have placed a UIProgressView successfully. However, I have seen some apps contain a small label above the UIProgressView which tells the user what the program is doing where progress is being made -- e.g. to download a file. However it seems that this cannot be done in UI Builder. Any ideas on the best way to add the label ablve the UIProgressView in the toolbar? Here is what I am interested in:
+------------------------------------------------+
| Uploading File |
| ================-------------------- [CANCEL] |
+------------------------------------------------+
Make a custom UIView that contains a UILabel and UIProgressView as subviews. You then insert the custom UIView into the toolbar.
You can actually also add text directly to a UIProgressView as a subview, ex:
UIProgressView *videoProgressView = [[UIProgressView alloc] initWithFrame:CGRectMake(40, self.view.frame.size.height/2, self.view.frame.size.width - 80, 40)];
UILabel *processing = [[UILabel alloc] initWithFrame:CGRectMake(0, -50, videoProgressView.frame.size.width, 25)];
processing.text = #"Processing Video...";
processing.textAlignment = NSTextAlignmentCenter;
[videoProgressView addSubview:processing];
[self.view addSubview:videoProgressView];
Just make sure UIProgressView's clipsToBounds property is set to NO.
Here's a Swift 5 implementation of Lyndsey Scott's answer used in my project:
let view = UIApplication.topViewController()!.view!
let progressView = UIProgressView(progressViewStyle: .default)
progressView.center = view.center
progressView.trackTintColor = .gray
progressView.frame = CGRect(x: 40, y: view.frame.size.height / 2, width: view.frame.size.width - 80, height: 40)
let progressViewLabel = UILabel(frame: CGRect(x: 0, y: -50, width: progressView.frame.size.width, height: 25))
progressViewLabel.text = "Migrating database:"
progressViewLabel.textAlignment = .center
progressView.addSubview(progressViewLabel)
view.addSubview(progressView)
Related
Recently i tried to create a custom segmentedControl where i had three views in it.
WHILE I WAS TOUCHING FIRST HALF OF THE VIEW THE tapGesture WORKED. But the rest half dint respond.
My frame of the segment is:
segment.frame=CGRectMake(0, 0, 300, 100) ;
And the frame of the UIView is:
view1 = [[UIView alloc]initWithFrame:CGRectMake(10, 80, 100, 40)];
change the height of the frame to 200 And then it will work:
segment.frame=CGRectMake(0, 0, 300, 200) ;
Reason: Your height of the view is less when compared.
Put Your view frame like this it will work for you..Because you add Segment with height 100 from y=0, So you can set view frame after y = 100..
view1 = [[UIView alloc]initWithFrame:CGRectMake(10, 110, 100, 40)];
I am creating an app that contain multiple UITextField. In the textField i have sated border type to none and background image. It display fine, But now my text is started from the lest border which does not look good, like this
How can i add space at the start of the textfield?
Try this
UILabel * leftView = [[UILabel alloc] initWithFrame:CGRectMake(10,0,7,26)];
leftView.backgroundColor = [UIColor clearColor];
textField.leftView = leftView;
textField.leftViewMode = UITextFieldViewModeAlways;
textField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
Here's #Kalpesh's answer in Swift 3.x:
let leftView = UILabel(frame: CGRectMake(10, 0.0, 7, 26))
leftView.backgroundColor = .clearColor()
customField.leftView = leftView
customField.leftViewMode = .Always
customField.contentVerticalAlignment = .Center
Swift 4.x
let leftView = UILabel(frame: CGRect(x: 10, y: 0, width: 7, height: 26))
leftView.backgroundColor =.clear
customField.leftView = leftView
customField.leftViewMode = .always
customField.contentVerticalAlignment = .center
You should subclass UITextField and override drawText function.
check this for help
OR
You can do following:
UIView *paddingView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 15, height_of_textfiled)];
textField.leftView = paddingView;
textField.leftViewMode = UITextFieldViewModeAlways;
Objective c
For padding only placeholder this code will work
usernameTF.attributedPlaceholder = [[NSAttributedString alloc] initWithString:#" Your text"];
For padding both placeholder and text of the UITextField this below code will work
usernameTF.layer.sublayerTransform = CATransform3DMakeTranslation(40, 0, 30);
Swift 3.0
For padding only placeholder this code will work
yourTextField.attributedPlaceholder = NSAttributedString(string: " YourText")
For padding both placeholder and text of the UITextField this below code will work
usernameTF.layer.sublayerTransform = CATransform3DMakeTranslation(40, 0, 30)
You can subclass UITextField and override textRectForBounds and editingRectForBounds.
For example,
- (CGRect)textRectForBounds:(CGRect)bounds {
return CGRectMake(bounds.origin.x + 10, bounds.origin.y + 5, bounds.size.width - 20, bounds.size.height - 10);
}
- (CGRect)editingRectForBounds:(CGRect)bounds {
return CGRectMake(bounds.origin.x + 10, bounds.origin.y + 5, bounds.size.width - 20, bounds.size.height - 10);
}
Swift 4
yourTextField.layer.sublayerTransform = CATransform3DMakeTranslation(10, 0, 10)
You can put the textfield background image in an image view,above the imageview put your textfield a space left.
-(void)textField:(UITextField *) textField didBeginEditing {
if ([textField.text isEqualToString:#""] || textField.text == NULL) {
textField.text = #" ";
}
}
In my app, I have some custom titles (with lettering that isn't a font) stored in pngs that I want to put as the title of my navigation. I want the lettering in the titles all to be the same size for each different view controller, so in illustrator I've worked on making it all the same size and width (affording blank space to account for shorter strings). I do the following:
UIImageView *titleImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"SelectAnAlbumTitleLettering"]];
titleImageView.contentMode = UIViewContentModeCenter;
self.navigationItem.titleView = titleImageView;
[titleImageView release];
And it seems the image is arbitrarily resized and positioned based on the elements included on each navigationBar (i.e. back button, right button etc.).
I'm wondering, how can I gain control of titleView so I can make it implement the size and position that I want and so it isn't arbitrarily resized / repositioned.
Instead of using your image view as the title view, create another view that contains the image view. Set that view as the title view of the navigation item; now you’re free to adjust the image view’s frame within the title view.
You can control size and position of UINavigationbar titleview. Don't set imageview as titleview directly. Instead create a custom UIView and then set its frame as per your requirement and add your titleImageView as its subview.
UIView *backView =[[UIView alloc] initWithFrame:CGRectMake(0, 0, 200, 40)];// Here you can set View width and height as per your requirement for displaying titleImageView position in navigationbar
[backView setBackgroundColor:[UIColor greenColor]];
UIImageView *titleImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"SelectAnAlbumTitleLettering"]];
titleImageView.frame = CGRectMake(45, 5,titleImageView.frame.size.width , titleImageView.frame.size.height); // Here I am passing origin as (45,5) but can pass them as your requirement.
[backView addSubview:titleImageView];
//titleImageView.contentMode = UIViewContentModeCenter;
self.navigationItem.titleView = backView;
Hope it helps you.
In Swift, you can do it like this:
var titleView = UIView(frame: CGRectMake(0, 0, 100, 40))
var titleImageView = UIImageView(image: UIImage(named: "cocolife"))
titleImageView.frame = CGRectMake(0, 0, titleView.frame.width, titleView.frame.height)
titleView.addSubview(titleImageView)
navigationItem.titleView = titleView
Updated Swift4 code:
var titleView = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 40))
var titleImageView = UIImageView(image: UIImage(named: "headerlogo"))
titleImageView.frame = CGRect(x: 0, y: 0, width: titleView.frame.width, height: titleView.frame.height)
titleView.addSubview(titleImageView)
navigationItem.titleView = titleView
Update swift 5
var titleView = UIView()
navigationItem.titleView?.translatesAutoresizingMaskIntoConstraints = false
navigationItem.titleView = titleView
I would like to change the color of the clearButton that appaers when you are writting on a UItextField. Any suggestion? I am not an advanced interface developer and I have no idea of how to do it.
You should create your own UIButton (with image, you'll need a png of you desiderated button), instance it and put this button in the rightView of your UITextField.
CGFloat myWidth = 26.0f;
CGFloat myHeight = 30.0f;
UIButton *myButton = [[UIButton alloc] initWithFrame:CGRectMake(0.0f, 0.0f, myWidth, myHeight)];
[myButton setImage:[UIImage imageNamed:#"myButtonImage"] forState:UIControlStateNormal];
[myButton setImage:[UIImage imageNamed:#"myButtonImage"] forState:UIControlStateHighlighted];
[myButton addTarget:self action:#selector(doClear:) forControlEvents:UIControlEventTouchUpInside];
myTextField.rightView = myButton;
myTextField.rightViewMode = UITextFieldViewModeUnlessEditing;
You could need to refine alignments using (these are example values):
myButton.imageEdgeInsets = UIEdgeInsetsMake(0, -10, 0, 0);
Then, you will need to implement method -(void) doClear(id)sender; that will clear your textfield.
Swift 4
I used Giorgio's answer and this is what I went with :
let height = textField.bounds.height / 3
let width = height + 10
let rect = CGRect(x: 0, y: 0, width: width, height: height)
let myButton = UIButton(frame: rect)
myButton.setImage(UIImage(named: "clear button white"), for: .normal)
textField.rightView = myButton
textField.rightViewMode = .always
myButton.imageEdgeInsets = UIEdgeInsets(top: 0, left: 5, bottom: 0, right: 5)
The normal one :
enter image description here
This one :
enter image description here
I have a custom UINavigationBar title and a custom back button.
My problem is that the title is not centered on the iPhone.
It is as if my back button is pushing the title over to the right. Any Idea how I can center it?
int height = self.navigationController.navigationBar.frame.size.height;
int width = self.navigationController.navigationBar.frame.size.width;
UILabel *navLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, width + 300, 20)];
navLabel.backgroundColor = [UIColor whiteColor];
navLabel.textColor = [UIColor redColor];
navLabel.font = [UIFont fontWithName:#"Helvetica" size:30];
navLabel.textAlignment = UITextAlignmentCenter;
self.navigationItem.titleView = navLabel;
[navLabel release];
((UILabel *)self.navigationItem.titleView).text = self.title;
Thanks!
edit I removed superfluous code and added this picture:
Notice how the title is pushed over to accomodate the button....
iOS is doing this because the frame you initialize is alway 300+width pixels. It is trying to center the full frame, the frame is larger than the space it wants to fit it in (because of the button) and therefore your label gets pushed to the right.
What you need to do is give the Frame of the navLabel the minimum size it needs.
So if your text is only 100px wide, but the frame is 400px, then iOS is trying to center the 400px inside the Navigation header, and doesn't have enough space. When you set the size to the actual 100px that is needed, iOS will center your header correctly, because there is plenty of space to center 100px.
The code snippet below should help you to detect the minimum size your frame needs, depending on the font and the text you try to put in.
Make sure the frame of the label is as small as possible, but does not exceed the max width.
(the width of the navigation bar).
UIFont* titleFont = [UIFont fontWithName:#"Helvetica" size:30];
CGSize requestedTitleSize = [titleText sizeWithAttributes:#{NSFontAttributeName: titleFont}];
CGFloat titleWidth = MIN(maxTitleWidth, requestedTitleSize.width);
UILabel *navLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, titleWidth, 20)];
navLabel.backgroundColor = [UIColor whiteColor];
navLabel.textColor = [UIColor redColor];
navLabel.font = [UIFont fontWithName:#"Helvetica" size:30];
navLabel.textAlignment = NSTextAlignmentCenter;
navLabel.text = titleText;
self.navigationItem.titleView = navLabel;
Swift 5.0
let titleFont = UIFont.systemFont(ofSize: 17.0)
let title = "My Title"
let titleSize = title.size(withAttributes: [.font: titleFont])
let frame = CGRect(x: 0, y: 0, width: titleSize.width, height: 20.0)
let titleLabel = UILabel(frame: frame)
titleLabel.font = titleFont
titleLabel.textColor = .red
titleLabel.textAlignment = .center
titleLabel.text = title
navigationItem.titleView = titleLabel
I had the same problem before. I had a UINavigationbar with right- and left-button.
I want to center an image on the UINavigationbar. So I had to put the image into an UIView with width 0.
The image self get a x-value which is half of own width.
UINavigationItem *item = navigationController.topViewController.navigationItem;
UIView *backView =[[UIView alloc] initWithFrame:CGRectMake(0, 0, 0, 30)];
[img_logo setFrame:CGRectMake(-45, 5, 90, 20)];
[backView addSubview:img_logo];
item.titleView = backView;
Nice answer! However sizeWithFont is now deprecated. You would want to do something like this now.
NSDictionary *textTitleOptions = [NSDictionary dictionaryWithObjectsAndKeys: [UIFont fontWithName:#"Helvetica" size:30], NSFontAttributeName, nil];
CGSize requestedTitleSize = [[NSString stringWithFormat:#"Your String"] sizeWithAttributes:textTitleOptions];
CGFloat titleWidth = MIN(self.view.frame.size.width, requestedTitleSize.width);
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, titleWidth, 44)];
I used autolayout constraints to solve this issue:
Add UILabel into a UIView.
Set constraints of centerX for the UILabel:
self.titleLabelCenterXConstraint = [NSLayoutConstraint constraintWithItem:self.titleLabel attribute:NSLayoutAttributeCenterX relatedBy:NSLayoutRelationEqual toItem:self attribute:NSLayoutAttributeCenterX multiplier:1.0f constant:0.0f];
In the UIView layoutSubViews to adjust the centerX offset value:
- (void)layoutSubviews
{
[super layoutSubviews];
CGFloat screenCenter = CGRectGetMidX([UIScreen mainScreen].bounds);
CGFloat diffCenter = screenCenter - CGRectGetMidX(self.frame);
self.titleLabelCenterXConstraint.constant = diffCenter;
}
set UIView to navigationItem titleView
Swift 2.3:
let tlabel = UILabel(frame: CGRectMake(0, 0, 200, 40))
tlabel.text = self.title
tlabel.textColor = UIColor.whiteColor()
tlabel.font = UIFont.boldSystemFontOfSize(17) //UIFont(name: "Helvetica", size: 17.0)
tlabel.backgroundColor = UIColor.clearColor()
tlabel.adjustsFontSizeToFitWidth = true
tlabel.textAlignment = .Center
self.navigationItem.titleView = tlabel
Swift 3 for #BHuelse's answer:
let image = UIImage(named: "logo")
let logoView = UIView.init(frame: CGRect(x: 0, y: 0, width: 0, height: 30))
let imageView = UIImageView(frame: CGRect(x: -45, y: 5, width: 90, height: 20))
imageView.image = image
imageView.contentMode = .scaleAspectFit
logoView.addSubview(imageView)
self.navigationItem.titleView = logoView
The title is not centered in the navbar itself. It is centered between the left buttons and the right buttons of the navbar. This means that if you have a big button on the left, the title will be shifted to the right.
You can change the center by adding a centered constraint to your title and then modifying it so it's really the center of the navbar :
// Position the title in the middle of the navbar and not in the middle of buttons
fileprivate func centerTitle () {
if let navigation = self.navigationController {
let titleMiddle = navigation.navigationBar.convert(titleViewLabel.frame, from: titleViewLabel.superview).midX
let diff = navigation.navigationBar.center.x - titleMiddle
constraintTitleViewCentered.constant += diff
}
}