Swift3.0 UITextField 限制表情emoji输入

Method -Common （Class）

func checkStrHaveEmoji(_ string : String) -> Bool {

for char in string.characters{

let codePoint = String(char).unicodeScalars.first?.value

if  (codePoint >= 0x2600 && codePoint <= 0x27BF) // 杂项符号与符号字体

|| codePoint == 0x303D

|| codePoint == 0x2049

|| codePoint == 0x203C

|| (codePoint >= 0x2000 && codePoint <= 0x200F)//

|| (codePoint >= 0x2028 && codePoint <= 0x202F)//

|| codePoint == 0x205F //

|| (codePoint >= 0x2065 && codePoint <= 0x206F)//

/* 标点符号占用区域 */

|| (codePoint >= 0x2100 && codePoint <= 0x214F)// 字母符号

|| (codePoint >= 0x2300 && codePoint <= 0x23FF)// 各种技术符号

|| (codePoint >= 0x2B00 && codePoint <= 0x2BFF)// 箭头A

|| (codePoint >= 0x2900 && codePoint <= 0x297F)// 箭头B

|| (codePoint >= 0x3200 && codePoint <= 0x32FF)// 中文符号

|| (codePoint >= 0xD800 && codePoint <= 0xDFFF)// 高低位替代符保留区域

|| (codePoint >= 0xE000 && codePoint <= 0xF8FF)// 私有保留区域

|| (codePoint >= 0xFE00 && codePoint <= 0xFE0F)// 变异选择器

|| codePoint >= 0x10000{

return true

}

}

return false

}

TestCase -CommonTest(Class)

var  string = "🐶sdfavas"

XCTAssertTrue(Common().checkStrHaveEmoji(string))

string = "🐶嗯。那的"

XCTAssertTrue(Common().checkStrHaveEmoji(string))

string = "😄🐶😄😂☠️"

XCTAssertTrue(Common().checkStrHaveEmoji(string))

string = "sadfa[微笑][惊讶][惊恐]那的"

XCTAssertFalse(Common().checkStrHaveEmoji(string))

string = "sadfa🐶🐶🐳🐱那的"

XCTAssertTrue(Common().checkStrHaveEmoji(string))

string = "sadf🐶🐳🐱a那的"

XCTAssertTrue(Common().checkStrHaveEmoji(string))

string = "sadfa那的"

XCTAssertFalse(Common().checkStrHaveEmoji(string))