Hi I have problem for set multiple lines to my Button which is declared like that:
button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.titleLabel.font = [UIFont systemFontOfSize: 12];
button.titleLabel.lineBreakMode = UILineBreakModeWordWrap;
button.titleLabel.numberOfLines = 0;
button.titleLabel.shadowOffset = CGSizeMake (1.0, 0.0);
[button addTarget:self
action:#selector(myButtonClick)
forControlEvents:UIControlEventTouchDown];
button.frame = CGRectMake(0.0, 100.0, 317.0, 100.0);
[button setTitle:string forState:UIControlStateNormal];
button.titleLabel.font = [UIFont systemFontOfSize: 12];
button.titleLabel.text = #"ahoj";
NSMutableString *ObratString = [[NSMutableString alloc] initWithString:button.titleLabel.text];
[ObratString appendString:#"\n"];
[ObratString appendString:#"caw"];
[ObratString appendString:#"\n"];
[ObratString appendString:#"helllo"];
button.titleLabel.text = ObratString;
[ObratString release];
[self.view addSubview:button];
But in the end I just see the first line.
Is there any way to make it work?
The UIButton displays it's text with a contained UILabel. The default for the contained label is to display one line of text only. This label is accessible through the titleLabel property, and anything you can do to a normal label can be done to it.
For example making it multi-lines broken by words:
ObjC:
myButton.titleLabel.numberOfLines = 0; // Dynamic number of lines
myButton.titleLabel.lineBreakMode = NSLineBreakByWordWrapping;
Swift:
myButton.titleLabel?.numberOfLines = 0; // Dynamic number of lines
myButton.titleLabel?.lineBreakMode = .byWordWrapping;
Swift version for the checked response:
myButton.titleLabel?.numberOfLines = 0
myButton.titleLabel?.lineBreakMode = NSLineBreakMode.ByWordWrapping
Related
I seem to have a problem in my Objective C iOS app where I am creating multiple buttons depending on the amount of objects in an array. I know Swift, so I replicated the logic into Swift, and it worked. Yet in Objective C, I am unable to see the text of the button (after I remove the for loop) or create multiple buttons. For example, I have an array full of three names. I would like to create a button for each name with the title set to the corresponding name. So far, I have this:
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
NSMutableArray *ages = [[NSMutableArray alloc] init];
for (int i = 0; i > 10; i++) {
[ages addObject:[NSString stringWithFormat:#"%i", i]];
}
UIScrollView *scrollView= [[UIScrollView alloc]initWithFrame:self.view.frame];
scrollView.delegate= self;
self.automaticallyAdjustsScrollViewInsets= NO;
scrollView.backgroundColor= [UIColor clearColor];
scrollView.scrollEnabled= YES;
scrollView.userInteractionEnabled= YES;
[scrollView setShowsHorizontalScrollIndicator:NO];
[scrollView setShowsVerticalScrollIndicator:NO];
CGFloat xValue = 0;
for(int x=0; x > ages.count; x++){
UIButton *button= [[UIButton alloc] initWithFrame:CGRectMake(xValue ,0 , 172 ,65)];
UIColor *buttonOutline = [[UIColor redColor] CGColor];
button.layer.borderColor = [buttonOutline CGColor];
button.layer.backgroundColor = [[UIColor clearColor] CGColor];
button.layer.borderWidth = 1.0;
button.layer.cornerRadius = 6.0;
[button.titleLabel setFont:[UIFont fontWithName:#"Helvetica" size:13.0]];
button.titleLabel.text = [ages objectAtIndex:x];
[button addTarget:self action:#selector(test:) forControlEvents:UIControlEventTouchUpInside];
[scrollView addSubview:button];
NSLog(#"Button Added");
xValue = button.frame.size.width + 40;
}
scrollView.contentSize = CGSizeMake(xValue, 65);
[self.view addSubview:scrollView];
}
- (void)test:(UIButton*)sender{
NSLog(#"Clicked %#", sender.titleLabel.text);
}
#end
If anyone sees anything wrong with this code, please point it out!
Thanks,
Arnav K.
I found four problems (there may be others) that stop this working correctly:
1) The for loop bound when setting up the ages array is incorrect.
2) The for loop bound when creating the buttons is incorrect.
3) You are setting the buttonOutline colour incorrectly.
4) xValue is being updated incorrectly.
Here is the viewDidLoad method after the changes have been made:
- (void)viewDidLoad {
[super viewDidLoad];
NSMutableArray *ages = [[NSMutableArray alloc] init];
for (int i = 0; i < 10; i++) { // UPDATED
[ages addObject:[NSString stringWithFormat:#"%i", i]];
}
UIScrollView *scrollView= [[UIScrollView alloc]initWithFrame:self.view.frame];
scrollView.delegate= self;
self.automaticallyAdjustsScrollViewInsets= NO;
scrollView.backgroundColor= [UIColor clearColor];
scrollView.scrollEnabled= YES;
scrollView.userInteractionEnabled= YES;
[scrollView setShowsHorizontalScrollIndicator:NO];
[scrollView setShowsVerticalScrollIndicator:NO];
CGFloat xValue = 0;
for(int x=0; x < ages.count; x++){ // UPDATED
UIButton *button= [[UIButton alloc] initWithFrame:CGRectMake(xValue ,0 , 172 ,65)];
UIColor *buttonOutline = [UIColor redColor]; // UPDATED
button.layer.borderColor = [buttonOutline CGColor];
button.layer.backgroundColor = [[UIColor clearColor] CGColor];
button.layer.borderWidth = 1.0;
button.layer.cornerRadius = 6.0;
[button.titleLabel setFont:[UIFont fontWithName:#"Helvetica" size:13.0]];
button.titleLabel.text = [ages objectAtIndex:x];
[button addTarget:self action:#selector(test:) forControlEvents:UIControlEventTouchUpInside];
[scrollView addSubview:button];
NSLog(#"Button Added");
xValue += button.frame.size.width + 40; // UPDATED
}
scrollView.contentSize = CGSizeMake(xValue, 65);
[self.view addSubview:scrollView];
}
I have marked the four lines I changed with a UPDATED comment so you can compare them to the original.
EDIT
To change the text and text colour use the following:
[button setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
[button setTitle:[ages objectAtIndex:x] forState:UIControlStateNormal];
and remove this:
button.titleLabel.text = [ages objectAtIndex:x];
You need to do this because you can set different text for the different states of the button and this is all handled automatically for you.
I want create UIButton from NSString.
I have one string like this #"First Button" I want first get size of width pixel and after create one Button According to this string but I don't know about it.
please guide me.
You can get the CGSize of NSString using sizeWithAttributes (before we used sizeWithFont but this is now deprecated method with iOS 7) and then create UIButton according to the size like
NSString *string = #"First Button";
CGSize size = [string sizeWithAttributes:
#{NSFontAttributeName:
[UIFont systemFontOfSize:27.0f]}];
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(0, 50, size.width, size.height);
button.titleLabel.textColor = [UIColor blackColor];
[button setTitle:string forState:UIControlStateNormal];
button.backgroundColor = [UIColor redColor];
[self.view addSubview:button];
Review this working fine for me.
Hope this will help you.
First you have to get the size of the text by using
NSString someText = #"some Text";
CGSize constraintSize = CGSizeMake(youMaxWidthForButton, youMaxHeightForButton);
CGRect labelSize = [someText boundingRectWithSize:constraintSize options:NSStringDrawingUsesLineFragmentOrigin attributes:#{NSFontAttributeName:[UIFont systemFontOfSize:17.0f]} context:nil];
than you create your UIButton
UIButton *button = [[UIButton alloc]initWithFrame:labelSize];
finally you set the button title
button.titleLabel.text = someText;
I want to make an "add" button to add as many textfields as i want in my scroll view.
I did this already
UITextField *text=[[UITextField alloc]initWithFrame:CGRectMake(50,50,200,200)];
[self.scrollView addSubview:text];
But is not working.
Thanks!
If this is your complete button code:
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button setTitle:#"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);
// add this
[button addTarget:self action:#selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
// continue
[self.mainScroll addSubview:button];
Then add this somewhere:
- (void) buttonPressed:(UIButton *)button {
UITextField *text=[[UITextField alloc]initWithFrame:CGRectMake(50,50,200,200)];
text.backgroundColor = [UIColor greenColor]; // just to make sure it's showing up.
[self.scrollView addSubview:text];
}
First create common function like this,
-(void)setTextfieldStyle:(UITextField *)pTmpTextField
{
pTmpTextField.borderStyle = UITextBorderStyleRoundedRect;
pTmpTextField.font = [UIFont systemFontOfSize:15];
pTmpTextField.placeholder = #"First Name";
pTmpTextField.autocorrectionType = UITextAutocorrectionTypeNo;
pTmpTextField.keyboardType = UIKeyboardTypeDefault;
pTmpTextField.returnKeyType = UIReturnKeyDone;
pTmpTextField.clearButtonMode = UITextFieldViewModeWhileEditing;
pTmpTextField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
pTmpTextField.delegate = self;
}
and use this for creating UITextFiled,
int y = 0;
for(int i=0;i < 5;i++)
{
UITextField *txtTemp=[[UITextField alloc]initWithFrame:CGRectMake(0, y, 300, 31)];
txtTemp.tag = i;
[self setTextfieldStyle:txtTemp];
[self.view addSubview:txtTemp];
[txtTemp release];
y+=36;
}
This is UITextField's delegate method,
- (void)textFieldDidBeginEditing:(UITextField *)textField
{
NSLog(#"%#",textField.text);
}
Hope this works for you as this works for me. only keep this in mind that add the text fields to your scroll view.
In the example am adding them to my view!
I have a simple UIButton and try to get word wrap but it always shows the text in one line exceeding the button size.
NSString * text = NSLocalizedString(#"Start Loading",#"Start Loading");
_continueBtn.titleLabel.lineBreakMode = NSLineBreakByWordWrapping;
_continueBtn.titleLabel.textAlignment = NSTextAlignmentCenter;
[_continueBtn setTitle:text forState:UIControlStateNormal];
Also in UI builder when I set word wrap there the text wraps - only when I run the app the text appears in one line.
What have I missed here?
Try:
_continueBtn.titleLabel.numberOfLines = 0;
I've tried next code:
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = CGRectMake(20, 20, 70, 50);
button.titleLabel.lineBreakMode = NSLineBreakByWordWrapping;
button.titleLabel.textAlignment = NSTextAlignmentCenter;
[button setTitle:#"start loading"
forState:UIControlStateNormal];
[self.view addSubview:button];
It's working good for me:
I'm having a little problem with a UIButton I try to create programmatically. The problem is that the button shows up (i.e. if I set a background color, I can clearly see the button) and is clickable, but the title label isn't visible.
Here's what I'm doing :
valueButton = [UIButton buttonWithType:UIButtonTypeCustom];
[valueButton addTarget:self action:#selector(openList:) forControlEvents:UIControlEventTouchUpInside];
valueButton.frame = CGRectMake(160.0, decalageLabel+6.0, 120.0, 20.0);
[valueButton.titleLabel setTextAlignment:UITextAlignmentRight];
[valueButton.titleLabel setFont:[UIFont fontWithName:#"Helvetica-Neue-Light" size:17.0]];
UIColor * colorLabelValue = [[UIColor alloc] initWithRed:131.0/255.0 green:159.0/255.0 blue:86.0/255.0 alpha:1.0] ;
[valueButton setTitleColor:colorLabelValue forState:UIControlStateNormal];
if(txtValueField == NULL){
txtValueField = #"";
}
valueButton.titleLabel.text = [NSString stringWithFormat:#"%#", txtValueField];
NSLog(#"button : %# ", valueButton.titleLabel.text);
[self.contentView addSubview:valueButton];
Oh and I've made sure the title had an actual value, by NSLogging its text value, which works fine. So I don't know what's happening. Any idea?
Don't use [[button titleLabel] setTitle:] for this. Use [button setTitle:#"blah" forControlState:UIControlStateNormal].
This allows you to set a different title for highlighted, selected, up, etc.