CATextLayer 绘制文字

y];

    CATextLayer *lary = [CATextLayer layer];    lary.string = @"dasfasa";    lary.bounds = CGRectMake(0, 0, 320, 20);    lary.font = (__bridge CFTypeRef)(@"HiraKakuProN-W3"); //字体的名字 不是 UIFont    lary.fontSize = 12.f; //字体的大小    lary.alignmentMode = kCAAlignmentCenter;//字体的对齐方式    lary.position = CGPointMake(160, 410);    lary.foregroundColor = [UIColor redColor].CGColor;//字体的颜色    [self.view.layer addSublayer:lar

//字体变清晰

CGFloat fscale = [[UIScreen mainScreen] scale];

txtlayer.contentsScale = fscale;