MGLAttributedExpression

@interface MGLAttributedExpression : NSObject

An MGLAttributedExpression object associates text formatting attibutes (such as font size or font names) to an NSExpression.

Example

let redColor = UIColor.red
let expression = NSExpression(forConstantValue: "Foo")
let attributes: [MGLAttributedExpressionKey: NSExpression] = [.fontNamesAttribute : NSExpression(forConstantValue: ["DIN Offc Pro Italic",
                                                                                                                "Arial Unicode MS Regular"]),
                                                          .fontScaleAttribute: NSExpression(forConstantValue: 1.2),
                                                          .fontColorAttribute: NSExpression(forConstantValue: redColor)]
let attributedExpression = MGLAttributedExpression(expression, attributes:attributes)

expression

The expression content of the receiver as NSExpression.

Declaration

Objective-C

@property (nonatomic, strong, readwrite) NSExpression *_Nonnull expression;

Swift

var expression: NSExpression { get set }

attributes

The formatting attributes dictionary. Key Value Type — — MGLFontNamesAttribute An NSExpression evaluating to an NSString array. MGLFontScaleAttribute An NSExpression evaluating to an NSNumber value. MGLFontColorAttribute An NSExpression evaluating to an UIColor.

Declaration

Objective-C

@property (nonatomic, strong, readonly)
NSDictionary<MGLAttributedExpressionKey, NSExpression *>
    *_Nonnull attributes;

Swift

var attributes: [MGLAttributedExpressionKey : NSExpression] { get }

-initWithExpression:

Returns an MGLAttributedExpression object initialized with an expression and no attribute information.

Declaration

Objective-C

- (nonnull instancetype)initWithExpression:(nonnull NSExpression *)expression;

Swift

init(expression: NSExpression)

-initWithExpression:attributes:

Returns an MGLAttributedExpression object initialized with an expression and text format attributes.

Declaration

Objective-C

- (nonnull instancetype)
initWithExpression:(nonnull NSExpression *)expression
        attributes:(nonnull NSDictionary<MGLAttributedExpressionKey,
                                         NSExpression *> *)attrs;

Swift

init(expression: NSExpression, attributes attrs: [MGLAttributedExpressionKey : NSExpression] = [:])

+attributedExpression:fontNames:fontScale:

Creates an MGLAttributedExpression object initialized with an expression and the format attributes for font names and font size.

Declaration

Objective-C

+ (nonnull instancetype)attributedExpression:(nonnull NSExpression *)expression
                               fontNames:
                                   (nullable NSArray<NSString *> *)fontNames
                               fontScale:(nullable NSNumber *)fontScale;

Swift

convenience init(_ expression: NSExpression, fontNames: [String]?, fontScale: NSNumber?)

+attributedExpression:attributes:

Creates an MGLAttributedExpression object initialized with an expression and the format attributes dictionary.

Declaration

Objective-C

+ (nonnull instancetype)
attributedExpression:(nonnull NSExpression *)expression
          attributes:(nonnull NSDictionary<MGLAttributedExpressionKey,
                                           NSExpression *> *)attrs;

Swift

convenience init(_ expression: NSExpression, attributes attrs: [MGLAttributedExpressionKey : NSExpression] = [:])
iOS SDK

Tutorials

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