用CATextLayer来实现一个UILabel

by 伍雪颖

CATextLayer *textLayer = [CATextLayerlayer];

textLayer.frame =CGRectMake(100,100,100,100);

[self.view.layeraddSublayer:textLayer];

textLayer.foregroundColor = [UIColorblackColor].CGColor;

textLayer.alignmentMode =kCAAlignmentJustified;

textLayer.wrapped =YES;

UIFont *font = [UIFontsystemFontOfSize:15];

CFStringRef fontName = (__bridgeCFStringRef)font.fontName;

CGFontRef fontRef =CGFontCreateWithFontName(fontName);

textLayer.font = fontRef;

textLayer.fontSize = font.pointSize;

CGFontRelease(fontRef);

NSString *text =@"Cupid laid by his brand, and fell asleep";

textLayer.string = text;

textLayer.contentsScale = [UIScreen
mainScreen].scale;
// 在Retina显示