objective-c - CCLabelTTF中的行距

无论如何，ios应用程序中是否可以在cocos2d中的CCLabelTTF中调整多行之间的行距？谢谢

最佳答案

您的问题的答案是否定的。您无法调整CCLabelTTF的行距。但是，嘿!我将与您分享我对此的解决方案;)

这是.h

#import <Foundation/Foundation.h>
#import "cocos2d.h"

@interface CCLabelTTFLineSpaced : CCLayer {
}

+ (id) labelWithString:(NSString*)string dimensions:(CGSize)dimensions alignment:(CCTextAlignment)alignment fontName:(NSString*)name fontSize:(CGFloat)size lineSpace:(CGFloat)space;

- (id) initWithString:(NSString*)str dimensions:(CGSize)dimensions alignment:(CCTextAlignment)alignment fontName:(NSString*)name fontSize:(CGFloat)size lineSpace:(CGFloat)space;

@end

这是.m

#import "CCLabelTTFLineSpaced.h"

@implementation CCLabelTTFLineSpaced

+ (id) labelWithString:(NSString*)string dimensions:(CGSize)dimensions alignment:(CCTextAlignment)alignment fontName:(NSString*)name fontSize:(CGFloat)size lineSpace:(CGFloat)space{
    return [[[self alloc] initWithString: string dimensions:dimensions alignment:alignment fontName:name fontSize:size lineSpace:(CGFloat)space]autorelease];
}

- (id) initWithString:(NSString*)str dimensions:(CGSize)dimensions alignment:(CCTextAlignment)alignment fontName:(NSString*)name fontSize:(CGFloat)size lineSpace:(CGFloat)space{
    if( (self=[super init]) ) {
        anchorPoint_ = ccp(0.5f, 0.5f);
        [self setContentSize:dimensions];
        self.isRelativeAnchorPoint = NO;

        int pos = 0;
        int i = 0;
        while (pos<[str length]) {
            int end = 0;
            int lastCut = -1;
            bool finished=NO;
            while (finished==NO) {
                CGSize actualSize = [[str substringWithRange:NSMakeRange(pos, end)] sizeWithFont:[UIFont fontWithName:name size:size]];

                if (actualSize.width > dimensions.width || pos+end == [str length]) {
                    if (pos+end == [str length] && actualSize.width <= dimensions.width) lastCut = end;
                    finished=YES;
                }
                else {
                    if ([[str substringWithRange:NSMakeRange(pos+end, 1)] isEqualToString:@" "] || [[str substringWithRange:NSMakeRange(pos+end, 1)] isEqualToString:@"."] || [[str substringWithRange:NSMakeRange(pos+end, 1)] isEqualToString:@","]) {
                        lastCut = end;
                    }
                    end++;
                }
              }

            NSString * strLine = [str substringWithRange:NSMakeRange(pos, lastCut)];

            CCLabelTTF * line = [CCLabelTTF labelWithString:strLine dimensions:CGSizeMake(dimensions.width, size*2) alignment:alignment fontName:name fontSize:size];
            [line setAnchorPoint:ccp(0,1)];
            [line setPosition:ccp(0,-i*space)];
            [self addChild:line];

            pos=pos+lastCut;
            i++;
        }
    }
    return self;
}
@end

易于使用；)我必须使用 setter/getter ，装夹器和其他所有东西来完成类(class)。我知道这是一个“自制”的解决方案，但是，嘿!有用!

关于objective-c - CCLabelTTF中的行距，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/7856833/