2018-01-30

CATextLayer 渲染速度 快鱼 UILabel所以以后争取用 CATextLayer 代替UILabel的代替 争取成熟后造轮子!

记录

-(NSDictionary *)attributes{
    if (!_attributes) {
        CTTextAlignment textAlignment = kCTTextAlignmentCenter;
        CTParagraphStyleSetting alignmentStyleSetting;
        alignmentStyleSetting.spec = kCTParagraphStyleSpecifierAlignment;
        alignmentStyleSetting.valueSize = sizeof(textAlignment);
        alignmentStyleSetting.value = &textAlignment;
        CTParagraphStyleSetting settings[]  = {
           alignmentStyleSetting
        };
        CTParagraphStyleRef style = CTParagraphStyleCreate(settings, 1);
        CTFontRef font = CTFontCreateWithName((CFStringRef)WZ6.fontName, 14, NULL);
        
        _attributes = [NSDictionary dictionaryWithObjectsAndKeys:
                       (__bridge id)font, kCTFontAttributeName,
                       (id)style, kCTParagraphStyleAttributeName, nil];
    }
    return _attributes;
}