格式化 NSString，Objective-C

Question

像这样转换 NSString 的最佳方法是什么（大小写混合）

@"Hello lorem ipsum";
@"i am a test";

给这些（没有空格的驼峰式大小写）

@"helloLoremIpsum";
@"iAmATest";

Answer 1

这太过分了，但是 TransformerKit has a bunch of NSValueTransformers that can be used, one is for camel casing. The relevant file is TTTStringTransformers.m 如果您想构建自己的轻便解决方案。

Answer 2

试试这个

使用 For 循环

- (NSString *)camelCased:(NSString *)aString  {
    NSMutableString *result = [NSMutableString new];
    NSArray *words = [aString componentsSeparatedByString: @" "];
    for (NSUInteger i = 0; i < words.count; i++) {
        if (i==0) {
            [result appendString:([words[i] lowercaseString])];
        }
        else {
            [result appendString:([words[i] capitalizedString])];
        }
    }
    return result;
}

使用块

- (NSString *)camelCasedUsingBlock:(NSString *)aString  {
    NSMutableArray *words = [[NSMutableArray alloc] init];
    [[aString componentsSeparatedByString:@" "] enumerateObjectsUsingBlock:^(id anObject, NSUInteger idx, BOOL *stop) {
        if (idx == 0) {
            [words addObject:[anObject lowercaseString]];
        }
        else{
            [words addObject:[anObject capitalizedString]];
        }
    }];
    return [words componentsJoinedByString:@""];
}

NSLog(@"%@",[self camelCased:@"Hello lorem ipsum"]);//helloLoremIpsum
NSLog(@"%@",[self camelCased:@"i am a test"]);//iAmATest

格式化 NSString，Objective-C

Formatting NSString, Objective-C

objective-c

nsstring