C言語

UILocalizedIndexedCollat​​ionアドレスブックのグループ化の並べ替え



Uilocalizedindexedcollation Address Book Grouping Sort



UILocalizedIndexedCollat​​ionは、アルファベット順にソートされた配列のインデックスを再構築できます。

LCIndexTool.h



#define kToolsIndexAryKey @'LCIndexAryKey' //Index #define kToolsGroupAryKey @'LCGroupAryKey' //The sorted group /** Sort array @param mArray array to be sorted @param proretyName Attributes in the array that need to be sorted @return sorted index and gourpAry dictionary form kToolsIndexAryKey kToolsGroupAryKey */ + (NSDictionary *)sortedArrayWithChineseObject:(NSMutableArray *)mArray withPropertyNameSEL:(SEL)nameSEL

proretyNameは、次のような属性名です。
個人クラス属性：名前年齢phoneNumber
名前の最初の文字に従ってグループを並べ替え、@ selector（name）を渡す必要があります

LCIndexTool.m



/ / Array sort + (NSDictionary *)sortedArrayWithChineseObject:(NSMutableArray *)mArray withPropertyNameSEL:(SEL)nameSEL { UILocalizedIndexedCollation *indexCollation = [UILocalizedIndexedCollation currentCollation] NSInteger index, sectionTitlesCount = [[indexCollation sectionTitles] count] NSMutableArray *suoYinArr = [[NSMutableArray alloc] initWithArray:[indexCollation sectionTitles]] / / Temporary data, store the userObjs array data corresponding to the section NSMutableArray *newSectionsArray = [[NSMutableArray alloc] initWithCapacity:sectionTitlesCount] / / Set the sections array initialization: the element contains empty data of userObjs data for (index = 0 index 0 i -- ) { NSInteger index = [willDeleteAry[i - 1] integerValue] [newSectionsArray removeObjectAtIndex:index] [suoYinArr removeObjectAtIndex:index] } / / The dictionary stores the index and data after sorting NSDictionary *dict = @{kToolsGroupAryKey:newSectionsArray,kToolsIndexAryKey:suoYinArr} return dict }

転載：https：//www.jianshu.com/p/82e63896c59a