Search for a phonetic search of IOS

1. Need to use third-party library PINYIN4OBJC2. Use method 2.1 to set the output format

Hanyupinyinoutputformat *fmt = [[Hanyupinyinoutputformat alloc]init];

Fmt.casetype = Casetypeuppercase; Indicates output by capital letter

Fmt.tonetype = Tonetypewithouttone; It means no tone.

Fmt.vchartype = Vchartypewithuunicode; V to u indicates

2.2 Performing conversions

NSString *pinyin = [pinyinhelper tohanyupinyinstringwithnsstring:@ "Beijing" withhanyupinyinoutputformat:fmt withNSString: @"#"];

Parameter 1:@ "Beijing", Chinese string to be converted

Parameter 2:fmt, output format

Parameter 3:@ "#", delimiter, can be an empty string @ ""

Result of printing string pinyin: bei#jing

3. Achieve the first letter of Pinyin search

NSString *pinyin2 = [Pinyinhelper toHanyuPinyinStringWithNSString:city.name withhanyupinyinoutputformat:fmt withnsstring:@ "#";

Nsarray *words = [pinyin2 componentsseparatedbystring:@ "#"];

nsmutablestring *headletterstr = [nsmutablestring string];

[Words enumerateobjectsusingblock:^ (id obj, Nsuinteger idx, BOOL *stop) {

[Headletterstr appendstring:[(NSString *) obj substringtoindex:1]];

}];

4. General search criteria, cite examples of urban search

if (([city.name rangeofstring:condition].length! = 0) | |

([pinyin rangeofstring:condition.uppercasestring].length! = 0) | |

([headletterstr Rangeofstring:condition.uppercasestring].length! = 0)

)

{

Search success, need to do things

}

5. Actual effect

Search for a phonetic search of IOS