Updated for Swift 3

Character

The Swift syntax for forming a hexadecimal code point is

\u{n}

where n is a hexadecimal number up to 8 digits long. The valid range for a Unicode scalar is U+0 to U+D7FF and U+E000 to U+10FFFF inclusive. (The U+D800 to U+DFFF range is for surrogate pairs, which are not scalars themselves, but are used in UTF-16 for encoding the higher value scalars.)

Examples:

// The following forms are equivalent. They all produce "C". let char1: Character = "\u{43}"let char2: Character = "\u{0043}"let char3: Character = "\u{00000043}"// Higher value Unicode scalars are done similarlylet char4: Character = "\u{203C}" // ‼ (DOUBLE EXCLAMATION MARK character)let char5: Character = "\u{1F431}" // 🐱 (cat emoji)// Characters can be made up of multiple scalarslet char7: Character = "\u{65}\u{301}" // é = "e" + accent marklet char8: Character = "\u{65}\u{301}\u{20DD}" // é⃝ = "e" + accent mark + circle

Notes:

• Leading zeros can be added or omitted
• Characters are known as extended grapheme clusters. Even when they are composed of multiple scalars, they are still considered a single character. What is key is that they appear to be a single character (grapheme) to the user.
• TODO: How to convert surrogate pair to Unicode scalar in Swift

String

Strings are composed of characters. See the following examples for some ways to form them using hexadecimal code points.

Examples:

var string1 = "\u{0043}\u{0061}\u{0074}\u{203C}\u{1F431}" // Cat‼🐱// pass an array of characters to a String initializerlet catCharacters: [Character] = ["\u{0043}", "\u{0061}", "\u{0074}", "\u{203C}", "\u{1F431}"] // ["C", "a", "t", "‼", "🐱"]let string2 = String(catCharacters) // Cat‼🐱

Converting Hex Values at Runtime

At runtime you can convert hexadecimal or Int values into a Character or String by first converting it to a UnicodeScalar.

Examples:

// hex valueslet value0: UInt8  = 0x43     // 97let value1: UInt16 = 0x203C   // 22823let value2: UInt32 = 0x1F431  // 127822// convert hex to UnicodeScalarlet scalar0 = UnicodeScalar(value0)// make sure that UInt16 and UInt32 form valid Unicode valuesguard    let scalar1 = UnicodeScalar(value1),    let scalar2 = UnicodeScalar(value2) else {    return}// convert to Characterlet character0 = Character(scalar0) // Clet character1 = Character(scalar1) // ‼let character2 = Character(scalar2) // 🐱// convert to Stringlet string0 = String(scalar0) // Clet string1 = String(scalar1) // ‼let string2 = String(scalar2) // 🐱// convert hex array to Stringlet myHexArray = [0x43, 0x61, 0x74, 0x203C, 0x1F431] // an Int arrayvar myString = ""for hexValue in myHexArray {    if let scalar = UnicodeScalar(hexValue) {        myString.append(Character(scalar))    }}print(myString) // Cat‼🐱

Further reading

• Strings and Characters docs
• Glossary of Unicode Terms
• Strings in Swift
• Working with Unicode code points in Swift

from your Hex "0x1F52D" to actual Emoji

let c = 0x1F602

next step would possibly getting an Uint32 from your Hex

let intEmoji = UnicodeScalar(c!).value

from this you can do something like

titleLabel.text = String(UnicodeScalar(intEmoji)!)

here you have a "😂"

it work with range of hexadecimal too

let emojiRanges = [            0x1F600...0x1F636,            0x1F645...0x1F64F,            0x1F910...0x1F91F,            0x1F30D...0x1F52D        ]        for range in emojiRanges {            for i in range {                let c = UnicodeScalar(i)!.value                data.append(c)            }        }

to get multiple UInt32 from your Hex range for exemple