Video tutorial (Audio is not enabled now,I 'll upload a new one at night)
youtube link click here
UILabel *sampleLabel = [[UILabel alloc] initWithFrame:CGRectMake(50,50,100,30)];
[self.view addSubview:sampleLabel];
// Optional Part
sampleLabel.text = @"Hellow World"; // Assigning a text to UILabel
sampleLabel.textColor = [UIColor orangeColor]; // Change the color of text default "black" to "orange" color
sampleLabel.textAlignment = UITextAlignmentCenter; // Align text in center
sampleLabel.textAlignment = NSTextAlignmentCenter; // Align text in center (This line for iOS 6.0)
sampleLabel.tag = 5; // Assigning an integer tag (its easy to reuse after releasing a label,but now we dnt need this)
sampleLabel.backgroundColor = [UIColor clearColor]; // Making background transparent
sampleLabel.font = [UIFont fontWithName:@"Arial" size:14.0]; // Selecting a font "Arial" with Size "14"
sampleLabel.hidden = NO;// Set the UILabel as visible (hidden=no)
sampleLabel.highlighted = YES;// Set Text Highlight
sampleLabel.highlightedTextColor = [UIColor blueColor]; // The highlight color applied to the label’s text.
sampleLabel.lineBreakMode = YES; // This option help to select word
wrap or chaarcter wrap depends on number of lines in UILabel
New label objects are configured to disregard user events by default. If you want to handle events in a custom subclass of
For information about basic view behaviors, see View Programming Guide for iOS.
A Boolean value indicating whether spacing between letters should be adjusted to fit the string within the label’s bounds rectangle.
@property(nonatomic) BOOL adjustsLetterSpacingToFitWidth
Discussion
When this property is YES, the label may alter the letter spacing of the label text to make that text fit better within the label’s bounds. This property is applied to the string regardless of the current line break mode. The default value of this property is NO.
If the value of this property to YES, the label to ignore values value returned by the tighteningFactorForTruncation method of any NSParagraphStyle objects associated with the label text.
Important: If this property is set to YES, it is a programmer error to set the lineBreakMode property to a value that causes text to wrap to another line.
Availability
Available in iOS 6.0 and later.
Declared In
UILabel.h
The styled text displayed by the label.
@property(nonatomic,copy) NSAttributedString *attributedText
Discussion
This property is nil by default. Assigning a new value to this property also replaces the value of the text property with the same string data, albeit without any formatting information. In addition, assigning a new a value updates the values in the font, textColor, and other style-related properties so that they reflect the style information starting at location 0 in the attributed string.
Availability
Available in iOS 6.0 and later.
Related Sample Code
Advanced UISearchBar
Declared In
UILabel.h
Controls how text baselines are adjusted when text needs to shrink to fit in the label.
@property(nonatomic) UIBaselineAdjustment baselineAdjustment
Discussion
If the adjustsFontSizeToFitWidth property is set to YES, this property controls the behavior of the text baselines in situations where adjustment of the font size is required. The default value of this property is UIBaselineAdjustmentAlignBaselines. This property is effective only when the numberOfLines property is set to 1.
Availability
Available in iOS 2.0 and later.
See Also
@property adjustsFontSizeToFitWidth
Declared In
UILabel.h
The enabled state to use when drawing the label’s text.
@property(nonatomic, getter=isEnabled) BOOL enabled
Discussion
This property determines only how the label is drawn. Disabled text is dimmed somewhat to indicate it is not active. This property is set to YES by default.
Availability
Available in iOS 2.0 and later.
See Also
@property adjustsFontSizeToFitWidth
Declared In
UILabel.h
The font of the text.
@property(nonatomic, retain) UIFont *font
Discussion
If you are using styled text in iOS 6 or later, assigning a new value to this property causes the font to be applied to the entirety of the string in the attributedText property. If you want to apply the font to only a portion of the text, create a new attributed string with the desired style information and associate it with the label. If you are not using styled text, this property applies to the entire text string in the text property.
The default value for this property is the system font at a size of 17 points (using the systemFontOfSize: class method of UIFont). The value for the property can only be set to a non-nil value; setting this property to nil raises an exception.
Availability
Available in iOS 2.0 and later.
Declared In
UILabel.h
A Boolean value indicating whether the receiver should be drawn with a highlight.
@property(nonatomic, getter=isHighlighted) BOOL highlighted
Discussion
Setting this property causes the receiver to redraw with the appropriate highlight state. A subclass implementing a text button might set this property to YES when the user presses the button and set it to NO at other times. In order for the highlight to be drawn, the highlightedTextColor property must contain a non-nil value.
The default value of this property is NO.
Availability
Available in iOS 2.0 and later.
See Also
@property highlightedTextColor
Declared In
UILabel.h
The highlight color applied to the label’s text.
@property(nonatomic, retain) UIColor *highlightedTextColor
Discussion
Subclasses that use labels to implement a type of text button can use the value in this property when drawing the pressed state for the button. This color is applied to the label automatically whenever the highlighted property is set to YES.
The default value of this property is nil .
Availability
Available in iOS 2.0 and later.
See Also
@property highlighted
Declared In
UILabel.h
The technique to use for wrapping and truncating the label’s text.
@property(nonatomic) NSLineBreakMode lineBreakMode
Discussion
If you are using styled text in iOS 6 or later, assigning a new value to this property causes the line break mode to be applied to the entirety of the string in the attributedText property. If you want to apply the line break mode to only a portion of the text, create a new attributed string with the desired style information and associate it with the label. If you are not using styled text, this property applies to the entire text string in the text property.
This property is in effect both during normal drawing and in cases where the font size must be reduced to fit the label’s text in its bounding box. This property is set to NSLineBreakByTruncatingTail by default.
Important: If this property is set to a value that causes text to wrap to another line, it is a programmer error to set either the adjustsFontSizeToFitWidth or adjustsLetterSpacingToFitWidth property to YES.
Special Considerations
In iOS 5 and earlier, the type of this property was UILineBreakMode.
Availability
Available in iOS 2.0 and later.
See Also
@property adjustsFontSizeToFitWidth
Declared In
UILabel.h
The minimum scale factor supported for the label’s text.
@property(nonatomic) CGFloat minimumScaleFactor
Discussion
Use this property to specify the smallest multiplier for the current font size that yields an acceptable font size to use when displaying the label’s text. If you specify a value of 0 for this property, the current font size is used as the smallest font size.
The default value of this property is 0.
Availability
Available in iOS 6.0 and later.
Declared In
UILabel.h
The maximum number of lines to use for rendering text.
@property(nonatomic) NSInteger numberOfLines
Discussion
This property controls the maximum number of lines to use in order to fit the label’s text into its bounding rectangle. The default value for this property is 1. To remove any maximum limit, and use as many lines as needed, set the value of this property to 0.
If you constrain your text using this property, any text that does not fit within the maximum number of lines and inside the bounding rectangle of the label is truncated using the appropriate line break mode.
When the receiver is resized using the sizeToFit method, resizing takes into account the value stored in this property. For example, if this property is set to 3, the sizeToFit method resizes the receiver so that it is big enough to display three lines of text.
Availability
Available in iOS 2.0 and later.
See Also
@property enabled
@property adjustsFontSizeToFitWidth
sizeToFit (UIView)
Declared In
UILabel.h
The preferred maximum width (in points) for a multiline label.
@property(nonatomic) CGFloat preferredMaxLayoutWidth
Discussion
This property affects the size of the label when layout constraints are applied to it. During layout, if the text extends beyond the width specified by this property, the additional text is flowed to one or more new lines, thereby increasing the height of the label.
Availability
Available in iOS 6.0 and later.
Declared In
UILabel.h
The shadow color of the text.
@property(nonatomic, retain) UIColor *shadowColor
Discussion
The default value for this property is nil, which indicates that no shadow is drawn. In addition to this property, you may also want to change the default shadow offset by modifying the shadowOffset property. Text shadows are drawn with the specified offset and color and no blurring.
Availability
Available in iOS 2.0 and later.
See Also
@property shadowOffset
Declared In
UILabel.h
The shadow offset (measured in points) for the text.
@property(nonatomic) CGSize shadowOffset
Discussion
The shadow color must be non-nil for this property to have any effect. The default offset size is (0, -1), which indicates a shadow one point above the text. Text shadows are drawn with the specified offset and color and no blurring.
Availability
Available in iOS 2.0 and later.
See Also
@property shadowColor
Declared In
UILabel.h
The text displayed by the label.
@property(nonatomic, copy) NSString *text
Discussion
This string is nil by default.
In iOS 6 and later, assigning a new value to this property also replaces the value of the attributedText property with the same text, albeit without any inherent style attributes. Instead the label styles the new string using the shadowColor, textAlignment, and other style-related properties of the class.
Availability
Available in iOS 2.0 and later.
Declared In
UILabel.h
The technique to use for aligning the text.
@property(nonatomic) NSTextAlignment textAlignment
Discussion
If you are using styled text in iOS 6 or later, assigning a new value to this property causes the text alignment to be applied to the entirety of the string in the attributedText property. If you want to apply the alignment to only a portion of the text, create a new attributed string with the desired style information and associate it with the label. If you are not using styled text, this property applies to the entire text string in the text property.
The default value of this property is NSTextAlignmentLeft.
Special Considerations
In iOS 5 and earlier, the type of this property was UITextAlignment.
Availability
Available in iOS 2.0 and later.
Declared In
UILabel.h
The color of the text.
@property(nonatomic, retain) UIColor *textColor
Discussion
If you are using styled text in iOS 6 or later, assigning a new value to this property causes the color to be applied to the entirety of the string in the attributedText property. If you want to apply the color to only a portion of the text, create a new attributed string with the desired style information and associate it with the label. If you are not using styled text, this property applies to the entire text string in the text property.
The default value for this property is a black color (set through the blackColor class method of UIColor). The value for the property can only be set to a non-nil value; setting this property to nil raises an exception.
Availability
Available in iOS 2.0 and later.
Declared In
UILabel.h
A Boolean value that determines whether user events are ignored and removed from the event queue.
@property(nonatomic, getter=isUserInteractionEnabled) BOOL userInteractionEnabled
Discussion
This property is inherited from the UIView parent class. This class changes the default value of this property to NO.
Availability
Available in iOS 2.0 and later.
Related Sample Code
iPhoneCoreDataRecipes
Declared In
UILabel.h
Draws the receiver’s text (or its shadow) in the specified rectangle.
- (void)drawTextInRect:(CGRect)rect
Parameters
rect
The rectangle in which to draw the text.
Discussion
You should not call this method directly. This method should only be overridden by subclasses that want to modify the default drawing behavior for the label’s text.
By the time this method is called, the current graphics context is already configured with the default environment and text color for drawing. In your overridden method, you can configure the current context further and then invoke super to do the actual drawing or you can do the drawing yourself. If you do render the text yourself, you should not invoke super.
Availability
Available in iOS 2.0 and later.
Declared In
UILabel.h
Returns the drawing rectangle for the label’s text.
- (CGRect)textRectForBounds:(CGRect)bounds limitedToNumberOfLines:(NSInteger)numberOfLines
Parameters
bounds
The bounding rectangle of the receiver.
numberOfLines
The maximum number of lines to use for the label. The value 0 indicates there is no maximum number of lines and that the rectangle should encompass all of the text.
Return Value
The computed drawing rectangle for the label’s text.
Discussion
You should not call this method directly. This method should only be overridden by subclasses that want to change the receiver’s bounding rectangle before performing any other computations. Use the value in the numberOfLines parameter to limit the height of the returned rectangle to the specified number of lines of text. For this method to be called, there must be a prior call to the sizeToFit or sizeThatFits: method. Note that labels in UITableViewCell objects are sized based on the cell dimensions, and not a requested size.
The default implementation of this method returns the original bounds rectangle.
Availability
Available in iOS 2.0 and later.
Declared In
UILabel.h
youtube link click here
Programmatically create UILabel
UILabel *sampleLabel = [[UILabel alloc] initWithFrame:CGRectMake(50,50,100,30)];
[self.view addSubview:sampleLabel];
// Optional Part
sampleLabel.text = @"Hellow World"; // Assigning a text to UILabel
sampleLabel.textColor = [UIColor orangeColor]; // Change the color of text default "black" to "orange" color
sampleLabel.textAlignment = UITextAlignmentCenter; // Align text in center
sampleLabel.textAlignment = NSTextAlignmentCenter; // Align text in center (This line for iOS 6.0)
sampleLabel.tag = 5; // Assigning an integer tag (its easy to reuse after releasing a label,but now we dnt need this)
sampleLabel.backgroundColor = [UIColor clearColor]; // Making background transparent
sampleLabel.font = [UIFont fontWithName:@"Arial" size:14.0]; // Selecting a font "Arial" with Size "14"
sampleLabel.hidden = NO;// Set the UILabel as visible (hidden=no)
sampleLabel.highlighted = YES;// Set Text Highlight
sampleLabel.highlightedTextColor = [UIColor blueColor]; // The highlight color applied to the label’s text.
sampleLabel.lineBreakMode = YES; // This option help to select word
wrap or chaarcter wrap depends on number of lines in UILabel
sampleLabel.numberOfLines = 0;// Option to add more lines in a UILabel
The
The default content mode of the UILabel class implements a
read-only text view. You can use this class to draw one or multiple
lines of static text, such as those you might use to identify other
parts of your user interface. The base UILabel class
provides support for both simple and complex styling of the label text.
You can also control over aspects of appearance, such as whether the
label uses a shadow or draws with a highlight. If needed, you can
customize the appearance of your text further by subclassing. UILabel class is UIViewContentModeRedraw.
This mode causes the view to redraw its contents every time its
bounding rectangle changes. You can change this mode by modifying the
inherited contentMode property of the class.New label objects are configured to disregard user events by default. If you want to handle events in a custom subclass of
UILabel, you must explicitly change the value of the userInteractionEnabled property to YES after initializing the object.For information about basic view behaviors, see View Programming Guide for iOS.
Task's (Details taken from apple.com)
Accessing the Text Attributes
text property
attributedText property
font property
textColor property
textAlignment property
lineBreakMode property
enabled property
Sizing the Label’s Text
adjustsFontSizeToFitWidth property
adjustsLetterSpacingToFitWidth property
baselineAdjustment property
minimumScaleFactor property
numberOfLines property
minimumFontSize property Deprecated in iOS 6.0
Managing Highlight Values
highlightedTextColor property
highlighted property
Drawing a Shadow
shadowColor property
shadowOffset property
Drawing and Positioning Overrides
– textRectForBounds:limitedToNumberOfLines:
– drawTextInRect:
Setting and Getting Attributes
userInteractionEnabled property
Getting the Layout Constraints
preferredMaxLayoutWidth property
Properties
adjustsFontSizeToFitWidth
A Boolean value indicating whether the font size should be reduced in order to fit the title string into the label’s bounding rectangle.
@property(nonatomic) BOOL adjustsFontSizeToFitWidth
Discussion
Normally, the label text is drawn with the font you specify in the font property. If this property is set to YES, however, and the text in the text property exceeds the label’s bounding rectangle, the receiver starts reducing the font size until the string fits or the minimum font size is reached. This property is effective only when the numberOfLines property is set to 1.
The default value for this property is NO. If you change it to YES, you should also set an appropriate minimum font size by modifying the minimumFontSize property.
Important: If this property is set to YES, it is a programmer error to set the lineBreakMode property to a value that causes text to wrap to another line.
Availability
Available in iOS 2.0 and later.
See Also
@property font
@property minimumFontSize
Declared In
UILabel.h
text property
attributedText property
font property
textColor property
textAlignment property
lineBreakMode property
enabled property
Sizing the Label’s Text
adjustsFontSizeToFitWidth property
adjustsLetterSpacingToFitWidth property
baselineAdjustment property
minimumScaleFactor property
numberOfLines property
minimumFontSize property Deprecated in iOS 6.0
Managing Highlight Values
highlightedTextColor property
highlighted property
Drawing a Shadow
shadowColor property
shadowOffset property
Drawing and Positioning Overrides
– textRectForBounds:limitedToNumberOfLines:
– drawTextInRect:
Setting and Getting Attributes
userInteractionEnabled property
Getting the Layout Constraints
preferredMaxLayoutWidth property
Properties
adjustsFontSizeToFitWidth
A Boolean value indicating whether the font size should be reduced in order to fit the title string into the label’s bounding rectangle.
@property(nonatomic) BOOL adjustsFontSizeToFitWidth
Discussion
Normally, the label text is drawn with the font you specify in the font property. If this property is set to YES, however, and the text in the text property exceeds the label’s bounding rectangle, the receiver starts reducing the font size until the string fits or the minimum font size is reached. This property is effective only when the numberOfLines property is set to 1.
The default value for this property is NO. If you change it to YES, you should also set an appropriate minimum font size by modifying the minimumFontSize property.
Important: If this property is set to YES, it is a programmer error to set the lineBreakMode property to a value that causes text to wrap to another line.
Availability
Available in iOS 2.0 and later.
See Also
@property font
@property minimumFontSize
Declared In
UILabel.h
adjustsLetterSpacingToFitWidth
A Boolean value indicating whether spacing between letters should be adjusted to fit the string within the label’s bounds rectangle.
@property(nonatomic) BOOL adjustsLetterSpacingToFitWidth
Discussion
When this property is YES, the label may alter the letter spacing of the label text to make that text fit better within the label’s bounds. This property is applied to the string regardless of the current line break mode. The default value of this property is NO.
If the value of this property to YES, the label to ignore values value returned by the tighteningFactorForTruncation method of any NSParagraphStyle objects associated with the label text.
Important: If this property is set to YES, it is a programmer error to set the lineBreakMode property to a value that causes text to wrap to another line.
Availability
Available in iOS 6.0 and later.
Declared In
UILabel.h
attributedText
The styled text displayed by the label.
@property(nonatomic,copy) NSAttributedString *attributedText
Discussion
This property is nil by default. Assigning a new value to this property also replaces the value of the text property with the same string data, albeit without any formatting information. In addition, assigning a new a value updates the values in the font, textColor, and other style-related properties so that they reflect the style information starting at location 0 in the attributed string.
Availability
Available in iOS 6.0 and later.
Related Sample Code
Advanced UISearchBar
Declared In
UILabel.h
baselineAdjustment
Controls how text baselines are adjusted when text needs to shrink to fit in the label.
@property(nonatomic) UIBaselineAdjustment baselineAdjustment
Discussion
If the adjustsFontSizeToFitWidth property is set to YES, this property controls the behavior of the text baselines in situations where adjustment of the font size is required. The default value of this property is UIBaselineAdjustmentAlignBaselines. This property is effective only when the numberOfLines property is set to 1.
Availability
Available in iOS 2.0 and later.
See Also
@property adjustsFontSizeToFitWidth
Declared In
UILabel.h
enabled
The enabled state to use when drawing the label’s text.
@property(nonatomic, getter=isEnabled) BOOL enabled
Discussion
This property determines only how the label is drawn. Disabled text is dimmed somewhat to indicate it is not active. This property is set to YES by default.
Availability
Available in iOS 2.0 and later.
See Also
@property adjustsFontSizeToFitWidth
Declared In
UILabel.h
font
The font of the text.
@property(nonatomic, retain) UIFont *font
Discussion
If you are using styled text in iOS 6 or later, assigning a new value to this property causes the font to be applied to the entirety of the string in the attributedText property. If you want to apply the font to only a portion of the text, create a new attributed string with the desired style information and associate it with the label. If you are not using styled text, this property applies to the entire text string in the text property.
The default value for this property is the system font at a size of 17 points (using the systemFontOfSize: class method of UIFont). The value for the property can only be set to a non-nil value; setting this property to nil raises an exception.
Availability
Available in iOS 2.0 and later.
Declared In
UILabel.h
highlighted
A Boolean value indicating whether the receiver should be drawn with a highlight.
@property(nonatomic, getter=isHighlighted) BOOL highlighted
Discussion
Setting this property causes the receiver to redraw with the appropriate highlight state. A subclass implementing a text button might set this property to YES when the user presses the button and set it to NO at other times. In order for the highlight to be drawn, the highlightedTextColor property must contain a non-nil value.
The default value of this property is NO.
Availability
Available in iOS 2.0 and later.
See Also
@property highlightedTextColor
Declared In
UILabel.h
highlightedTextColor
The highlight color applied to the label’s text.
@property(nonatomic, retain) UIColor *highlightedTextColor
Discussion
Subclasses that use labels to implement a type of text button can use the value in this property when drawing the pressed state for the button. This color is applied to the label automatically whenever the highlighted property is set to YES.
The default value of this property is nil .
Availability
Available in iOS 2.0 and later.
See Also
@property highlighted
Declared In
UILabel.h
lineBreakMode
The technique to use for wrapping and truncating the label’s text.
@property(nonatomic) NSLineBreakMode lineBreakMode
Discussion
If you are using styled text in iOS 6 or later, assigning a new value to this property causes the line break mode to be applied to the entirety of the string in the attributedText property. If you want to apply the line break mode to only a portion of the text, create a new attributed string with the desired style information and associate it with the label. If you are not using styled text, this property applies to the entire text string in the text property.
This property is in effect both during normal drawing and in cases where the font size must be reduced to fit the label’s text in its bounding box. This property is set to NSLineBreakByTruncatingTail by default.
Important: If this property is set to a value that causes text to wrap to another line, it is a programmer error to set either the adjustsFontSizeToFitWidth or adjustsLetterSpacingToFitWidth property to YES.
Special Considerations
In iOS 5 and earlier, the type of this property was UILineBreakMode.
Availability
Available in iOS 2.0 and later.
See Also
@property adjustsFontSizeToFitWidth
Declared In
UILabel.h
minimumScaleFactor
The minimum scale factor supported for the label’s text.
@property(nonatomic) CGFloat minimumScaleFactor
Discussion
Use this property to specify the smallest multiplier for the current font size that yields an acceptable font size to use when displaying the label’s text. If you specify a value of 0 for this property, the current font size is used as the smallest font size.
The default value of this property is 0.
Availability
Available in iOS 6.0 and later.
Declared In
UILabel.h
numberOfLines
The maximum number of lines to use for rendering text.
@property(nonatomic) NSInteger numberOfLines
Discussion
This property controls the maximum number of lines to use in order to fit the label’s text into its bounding rectangle. The default value for this property is 1. To remove any maximum limit, and use as many lines as needed, set the value of this property to 0.
If you constrain your text using this property, any text that does not fit within the maximum number of lines and inside the bounding rectangle of the label is truncated using the appropriate line break mode.
When the receiver is resized using the sizeToFit method, resizing takes into account the value stored in this property. For example, if this property is set to 3, the sizeToFit method resizes the receiver so that it is big enough to display three lines of text.
Availability
Available in iOS 2.0 and later.
See Also
@property enabled
@property adjustsFontSizeToFitWidth
sizeToFit (UIView)
Declared In
UILabel.h
preferredMaxLayoutWidth
The preferred maximum width (in points) for a multiline label.
@property(nonatomic) CGFloat preferredMaxLayoutWidth
Discussion
This property affects the size of the label when layout constraints are applied to it. During layout, if the text extends beyond the width specified by this property, the additional text is flowed to one or more new lines, thereby increasing the height of the label.
Availability
Available in iOS 6.0 and later.
Declared In
UILabel.h
shadowColor
The shadow color of the text.
@property(nonatomic, retain) UIColor *shadowColor
Discussion
The default value for this property is nil, which indicates that no shadow is drawn. In addition to this property, you may also want to change the default shadow offset by modifying the shadowOffset property. Text shadows are drawn with the specified offset and color and no blurring.
Availability
Available in iOS 2.0 and later.
See Also
@property shadowOffset
Declared In
UILabel.h
shadowOffset
The shadow offset (measured in points) for the text.
@property(nonatomic) CGSize shadowOffset
Discussion
The shadow color must be non-nil for this property to have any effect. The default offset size is (0, -1), which indicates a shadow one point above the text. Text shadows are drawn with the specified offset and color and no blurring.
Availability
Available in iOS 2.0 and later.
See Also
@property shadowColor
Declared In
UILabel.h
text
The text displayed by the label.
@property(nonatomic, copy) NSString *text
Discussion
This string is nil by default.
In iOS 6 and later, assigning a new value to this property also replaces the value of the attributedText property with the same text, albeit without any inherent style attributes. Instead the label styles the new string using the shadowColor, textAlignment, and other style-related properties of the class.
Availability
Available in iOS 2.0 and later.
Declared In
UILabel.h
textAlignment
The technique to use for aligning the text.
@property(nonatomic) NSTextAlignment textAlignment
Discussion
If you are using styled text in iOS 6 or later, assigning a new value to this property causes the text alignment to be applied to the entirety of the string in the attributedText property. If you want to apply the alignment to only a portion of the text, create a new attributed string with the desired style information and associate it with the label. If you are not using styled text, this property applies to the entire text string in the text property.
The default value of this property is NSTextAlignmentLeft.
Special Considerations
In iOS 5 and earlier, the type of this property was UITextAlignment.
Availability
Available in iOS 2.0 and later.
Declared In
UILabel.h
textColor
The color of the text.
@property(nonatomic, retain) UIColor *textColor
Discussion
If you are using styled text in iOS 6 or later, assigning a new value to this property causes the color to be applied to the entirety of the string in the attributedText property. If you want to apply the color to only a portion of the text, create a new attributed string with the desired style information and associate it with the label. If you are not using styled text, this property applies to the entire text string in the text property.
The default value for this property is a black color (set through the blackColor class method of UIColor). The value for the property can only be set to a non-nil value; setting this property to nil raises an exception.
Availability
Available in iOS 2.0 and later.
Declared In
UILabel.h
userInteractionEnabled
A Boolean value that determines whether user events are ignored and removed from the event queue.
@property(nonatomic, getter=isUserInteractionEnabled) BOOL userInteractionEnabled
Discussion
This property is inherited from the UIView parent class. This class changes the default value of this property to NO.
Availability
Available in iOS 2.0 and later.
Related Sample Code
iPhoneCoreDataRecipes
Declared In
UILabel.h
Instance Methods
drawTextInRect:
Draws the receiver’s text (or its shadow) in the specified rectangle.
- (void)drawTextInRect:(CGRect)rect
Parameters
rect
The rectangle in which to draw the text.
Discussion
You should not call this method directly. This method should only be overridden by subclasses that want to modify the default drawing behavior for the label’s text.
By the time this method is called, the current graphics context is already configured with the default environment and text color for drawing. In your overridden method, you can configure the current context further and then invoke super to do the actual drawing or you can do the drawing yourself. If you do render the text yourself, you should not invoke super.
Availability
Available in iOS 2.0 and later.
Declared In
UILabel.h
textRectForBounds:limitedToNumberOfLines:
Returns the drawing rectangle for the label’s text.
- (CGRect)textRectForBounds:(CGRect)bounds limitedToNumberOfLines:(NSInteger)numberOfLines
Parameters
bounds
The bounding rectangle of the receiver.
numberOfLines
The maximum number of lines to use for the label. The value 0 indicates there is no maximum number of lines and that the rectangle should encompass all of the text.
Return Value
The computed drawing rectangle for the label’s text.
Discussion
You should not call this method directly. This method should only be overridden by subclasses that want to change the receiver’s bounding rectangle before performing any other computations. Use the value in the numberOfLines parameter to limit the height of the returned rectangle to the specified number of lines of text. For this method to be called, there must be a prior call to the sizeToFit or sizeThatFits: method. Note that labels in UITableViewCell objects are sized based on the cell dimensions, and not a requested size.
The default implementation of this method returns the original bounds rectangle.
Availability
Available in iOS 2.0 and later.
Declared In
UILabel.h
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