Remove shadow from placeholder text in UITextField styled using CALayer - ios

I've created a UITextField from the Interface Builder(IB).
Since I wanted custom styling, I selected the None styling in IB.
On viewDidLoad, I'm assigning it the following style:
txtEmail.layer.cornerRadius = 8.0;
txtEmail.layer.borderColor = [UIColor colorWithWhite:199.0/255.0 alpha:1].CGColor;
txtEmail.layer.borderWidth = 1.0;
txtEmail.layer.shadowColor = [UIColor blackColor].CGColor;
txtEmail.layer.shadowOpacity = 0.17;
txtEmail.layer.shadowOffset = CGSizeMake(-0.9,0.9);
txtEmail.layer.shadowRadius = 1.1;
// This is to provide a left padding for None styled textfields
UIView *paddingView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 5, 20)];
txtEmail.leftView = paddingView;
txtEmail.leftViewMode = UITextFieldViewModeAlways;
Now my textfield is getting perfectly styled, but my placeholder text (provided in IB) is also inheriting that shadow. How can I get rid of that?

Find the below code its working fine, you need to remove shadowRadius
txtEmail.backgroundColor = [UIColor clearColor];
txtEmail.layer.cornerRadius = 8.0;
txtEmail.layer.borderColor = [UIColor colorWithWhite:199.0/255.0 alpha:1].CGColor;
txtEmail.layer.borderWidth = 1.0;
txtEmail.layer.shadowColor = [UIColor blackColor].CGColor;
txtEmail.layer.shadowOpacity = 0.17;
txtEmail.layer.shadowOffset = CGSizeMake(-0.9,0.9);
txtEmail.layer.masksToBounds = false;
// This is to provide a left padding for None styled textfields
UIView *paddingView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 5, 20)];
txtEmail.leftView = paddingView;
txtEmail.leftViewMode = UITextFieldViewModeAlways;
[self.view addSubview:txtEmail];

Related

Adjust frame of UITableView Background View?

I am setting a label inside of an empty table view's background view, which is placing the label in the middle of the tableview.
I'd like to move that label up a bit, so it's near the top of the table view, however the code below isn't working:
UILabel *messageLbl = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, self.tableView.bounds.size.width, 20)];
messageLbl.text = #"NO REGISTRATIONS FOUND";
messageLbl.font = [UIFont fontWithName:#"Sansation-Bold" size:20.0f];
messageLbl.textColor = [UIColor lightGrayColor];
messageLbl.textAlignment = NSTextAlignmentCenter;
[messageLbl sizeToFit];
//set back to label view
self.tableView.backgroundView = messageLbl;
self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
self.tableView.backgroundView.frame = CGRectMake(0, 0, self.tableView.bounds.size.width, 100);
Another easy solution is to add your messageLbl to tableHeaderView:
UILabel *messageLbl = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, self.tableView.bounds.size.width, 50)];
messageLbl.text = #"\n\n NO REGISTRATIONS FOUND";
messageLbl.font = [UIFont fontWithName:#"Sansation-Bold" size:20.0f];
messageLbl.textColor = [UIColor lightGrayColor];
messageLbl.textAlignment = NSTextAlignmentCenter;
messageLbl.numberOfLines = 0;
[messageLbl sizeToFit];
//set back to label view
self.tableView.tableHeaderView = messageLbl;
Quick solution is just by adding \n at the end the of text and set no of lines to 0. Try this
messageLbl.numberOfLines = 0;
messageLbl.text = #"NO REGISTRATIONS FOUND\n\n\n\n";
Looks like you were hiding the Y axis behind Navigation bar
try it by setting some Y axis height & Don't forget to add SubView
UILabel *messageLbl = [[UILabel alloc] initWithFrame:CGRectMake(0, 100, self.tableView.bounds.size.width, 20)];
messageLbl.text = #"NO REGISTRATIONS FOUND";
messageLbl.font = [UIFont fontWithName:#"Sansation-Bold" size:20.0f];
messageLbl.textColor = [UIColor lightGrayColor];
messageLbl.textAlignment = NSTextAlignmentCenter;
[messageLbl sizeToFit];
//set back to label view
self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
[self.view addSubview: messageLbl];

iOS tableviewheader subview not shown

I use a UITableView and I want to setup a text at the beginning.
My code is:
UIView *tableHeaderView = [[UILabel alloc]initWithFrame:CGRectMake(0.0, 0.0, self.tableView.frame.size.width, 20.0)];
tableHeaderView.backgroundColor = [UIColor groupTableViewBackgroundColor];
UILabel *tableHeaderLabel = [[UILabel alloc]initWithFrame:CGRectMake(15.0,0,tableHeaderView.frame.size.width-15.0,tableHeaderView.frame.size.height)];
tableHeaderLabel.text = #"Countries";
if([UIFont respondsToSelector:#selector(preferredFontForTextStyle:)])
tableHeaderLabel.font = [UIFont preferredFontForTextStyle:UIFontTextStyleHeadline];
else
tableHeaderLabel.font = [UIFont boldSystemFontOfSize:14.0];
[tableHeaderView addSubview:tableHeaderLabel];
self.tableView.tableHeaderView = tableHeaderView;
[tableHeaderView bringSubviewToFront:tableHeaderLabel];
[tableHeaderLabel release];
[tableHeaderView release];
The problem is that the text isn't shown.
If I suppress the backgroundColor of the main header view, or if I replace it with a transparent one as if the Label awas under the main header view.
So I added the line:
[tableHeaderView bringSubviewToFront:tableHeaderLabel];
but this doesn't fix the issue.
I can't use the Label directly as the tableViewHeaderView directly becaus I want to left space at the left of the text.
Anybody have an idea to help me?
Thanks.
The only problem you have here is a typo in the first line, initialized an UIView wrongly as an UILabel. The compiler will not compliant as UILabel is a subclass of UIView.
I ran the following code and it worked as expected: (The code is for ARC, if you are not using it, don't forget to do the release!)
- (void)viewDidLoad {
[super viewDidLoad];
UIView *tableHeaderView = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0,
self.tableView.frame.size.width,
20.0)];
tableHeaderView.backgroundColor = [UIColor groupTableViewBackgroundColor];
UILabel *tableHeaderLabel = [[UILabel alloc] initWithFrame:CGRectMake(15.0, 0,
tableHeaderView.frame.size.width - 15.0,
tableHeaderView.frame.size.height)];
tableHeaderLabel.text = #"Countries";
tableHeaderView.backgroundColor = [UIColor groupTableViewBackgroundColor];
if([UIFont respondsToSelector:#selector(preferredFontForTextStyle:)]) {
tableHeaderLabel.font = [UIFont preferredFontForTextStyle:UIFontTextStyleHeadline];
} else {
tableHeaderLabel.font = [UIFont boldSystemFontOfSize:14.0];
}
[tableHeaderView addSubview:tableHeaderLabel];
self.tableView.tableHeaderView = tableHeaderView;
}

ios Title and Subtitle in Navigation Bar centered

I'm trying to have two UILabels in my navigation bar instead of just one.
I followed this link to have informations on how to do that:
iPhone Title and Subtitle in Navigation Bar
It works well, but I can't get my texts to be centered properly.
It is centered between the buttons, but the default title behaviour is to center itself right under the time.
I had a look here, same question, but no answer:
UINavigationBar TitleView with subtitle
What am I missing?
Here is my code:
CGRect headerTitleSubtitleFrame = CGRectMake(0, 0, 200, 44);
UIView* _headerTitleSubtitleView = [[UILabel alloc] initWithFrame:headerTitleSubtitleFrame];
_headerTitleSubtitleView.backgroundColor = [UIColor clearColor];
_headerTitleSubtitleView.autoresizesSubviews = NO;
CGRect titleFrame = CGRectMake(0, 2, 200, 24);
UILabel *titleView = [[UILabel alloc] initWithFrame:titleFrame];
titleView.backgroundColor = [UIColor clearColor];
titleView.font = [UIFont boldSystemFontOfSize:20];
titleView.textAlignment = NSTextAlignmentCenter;
titleView.textColor = [UIColor whiteColor];
titleView.shadowColor = [UIColor darkGrayColor];
titleView.shadowOffset = CGSizeMake(0, -1);
titleView.text = #"Title";
titleView.adjustsFontSizeToFitWidth = YES;
[_headerTitleSubtitleView addSubview:titleView];
CGRect subtitleFrame = CGRectMake(0, 24, 200, 44-24);
UILabel *subtitleView = [[UILabel alloc] initWithFrame:subtitleFrame];
subtitleView.backgroundColor = [UIColor clearColor];
subtitleView.font = [UIFont boldSystemFontOfSize:13];
subtitleView.textAlignment = NSTextAlignmentCenter;
subtitleView.textColor = [UIColor whiteColor];
subtitleView.shadowColor = [UIColor darkGrayColor];
subtitleView.shadowOffset = CGSizeMake(0, -1);
subtitleView.text = #"Subtitle";
subtitleView.adjustsFontSizeToFitWidth = YES;
[_headerTitleSubtitleView addSubview:subtitleView];
self.navigationItem.titleView = _headerTitleSubtitleView;
You should adjust the width of both frames. It should be below 200. try this.
CGRect titleFrame = CGRectMake(0, 2, 160, 24);
CGRect subtitleFrame = CGRectMake(0, 24, 160, 44-24);
Edit : Your backbutton on the left is wider, and the titleview is shifted to the right.
Please look the image with width 200px
And the image with width 160px
I suggest you to adjust the width of titleview and label accordingly.
If you want to know more about backbutton width, then please refer the discussion here.
SO Post 1.
SO Post 2.
you may like this property in UINavigationItem class.
#property (nonatmic,copy) NSString *prompt
It's elegant.

UILabel set to center of view

How come the UILabel drawn in this code is not in the center of the view?
//create the view and make it gray
UIView *view = [[UIView alloc] init];
view.backgroundColor = [UIColor darkGrayColor];
//everything for label
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0,0,42,21)];
//set text of label
NSString *welcomeMessage = [#"Welcome, " stringByAppendingString:#"username"];
welcomeMessage = [welcomeMessage stringByAppendingString:#"!"];
label.text = welcomeMessage;
//set color
label.backgroundColor = [UIColor darkGrayColor];
label.textColor = [UIColor whiteColor];
//properties
label.textAlignment = NSTextAlignmentCenter;
[label sizeToFit];
//add the components to the view
[view addSubview: label];
label.center = view.center;
//show the view
self.view = view;
The line, label.center = view.center; should move the label to the center of the view. But instead moves it to where the center of the label is in the left hand corner of the view as shown below.
(source: gyazo.com)
Does anyone know why?
You need to init your view with a frame:
UIView *view = [[UIView alloc] initWithFrame:self.view.frame];
This is caused by your view variable not having a frame defined. By default it has a frame set to (0, 0, 0, 0), so its center is (0, 0).
Hence when you do label.center = view.center;, you set the center of your label to (0 - label.width / 2, 0 - label.height /2). (-80.5 -10.5; 161 21) in your case.
There is no need for a new UIView if your UIViewController already have one, just work with self.view.
- (void)viewDidLoad
{
[super viewDidLoad];
//create the view and make it gray
self.view.backgroundColor = [UIColor darkGrayColor];
//everything for label
UILabel *label = [[UILabel alloc] init];
//set text of label
// stringWithFormat is useful in this case ;)
NSString *welcomeMessage = [NSString stringWithFormat:#"Welcome, %#!", #"username"];
label.text = welcomeMessage;
//set color
label.backgroundColor = [UIColor darkGrayColor];
label.textColor = [UIColor whiteColor];
//properties
label.textAlignment = NSTextAlignmentCenter;
[label sizeToFit];
//add the components to the view
[self.view addSubview: label];
label.center = self.view.center;
}
Also note that doing label.center = self.view.center will not work properly when rotating to landscape mode.
Your code would work fine if you put it in the viewDiLayoutSubviews instead of viewDidLoad

How to vertically align a UILabel used as a leftView in a UITextField with the textField's text?

I'm using a UILabel as the leftView of a UITextField. The issue is that the textField's text is higher than the label's.
This is the code I've used so far
UILabel *startsWith = [[UILabel alloc] init];
startsWith.font = [UIFont systemFontOfSize:14];
startsWith.textColor = [UIColor blackColor];
startsWith.backgroundColor = [UIColor clearColor];
startsWith.text = #"Text";
[startsWith sizeToFit];
self.textField.leftViewMode = UITextFieldViewModeAlways;
self.textField.leftView = startsWith;
I've tried slightly changing the label's frame but it didn't work...
How can I align both texts?
You could create a container view in which you position the UILabel 1px up.
UIView * v = [[UIView alloc] init];
v.backgroundColor = [UIColor clearColor];
UILabel *startsWith = [[UILabel alloc] init];
startsWith.font = self.textfield.font;
startsWith.textAlignment = self.textfield.textAlignment;
startsWith.textColor = [UIColor blackColor];
startsWith.backgroundColor = [UIColor clearColor];
startsWith.text = #"Text";
[startsWith sizeToFit];
startsWith.frame = CGRectOffset(startsWith.frame, 0, -1);
v.frame = startsWith.frame;
[v addSubview:startsWith];
self.textfield.leftViewMode = UITextFieldViewModeAlways;
self.textfield.leftView = v;

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