yylabel中全部是emoji表情时，设置行间距无效

[wusw]

初始化view

• (void)initContentView
  {
  YYLabel *sendMessage = [YYLabel new];
  sendMessage.numberOfLines = 0;
  sendMessage.lineBreakMode = NSLineBreakByCharWrapping;
  // sendMessage.textVerticalAlignment = YYTextVerticalAlignmentCenter;
  // sendMessage.textColor = [UIColor whiteColor];
  // sendMessage.font = [UIFont systemFontOfSize:16];
  // sendMessage.backgroundColor = [UIColor redColor];
  [self.contentView addSubview:sendMessage];
  self.sendMessage = sendMessage;
  }

内容赋值

• (void)setChatContentValue:(NSDictionary *)dict
  {
  NSMutableAttributedString *attr = [[NSMutableAttributedString alloc] init];
  attr.yy_lineSpacing = 0;

  NSMutableAttributedString *nick_attr = [[NSMutableAttributedString alloc] initWithString:dict[@"nick"]];
  nick_attr.yy_color = [CommonFuction colorFromHexRGB:@"ffd944"];
  nick_attr.yy_font = [UIFont boldSystemFontOfSize:16];
  [attr appendAttributedString:nick_attr];

  NSMutableAttributedString *message_attr = [[NSMutableAttributedString alloc] initWithString:dict[@"message"]];
  message_attr.yy_color = [UIColor whiteColor];
  message_attr.yy_font = [UIFont boldSystemFontOfSize:16];
  [attr appendAttributedString:message_attr];

  YYTextShadow *shadow = [YYTextShadow new];
  shadow.color = [UIColor colorWithWhite:0.000 alpha:0.5];
  shadow.offset = CGSizeMake(0, 0);
  shadow.radius = 1;
  attr.yy_textShadow = shadow;

  self.sendMessage.attributedText = attr;
  }

[ibireme]

在拼接好最终字符串后，再设置 yy_lineSpacing。

[wusw]

初始化view

(void)initContentView { YYLabel *sendMessage = [YYLabel new]; sendMessage.numberOfLines = 0; sendMessage.lineBreakMode = NSLineBreakByCharWrapping; // sendMessage.textVerticalAlignment = YYTextVerticalAlignmentCenter; // sendMessage.textColor = [UIColor whiteColor]; // sendMessage.font = [UIFont systemFontOfSize:16]; // sendMessage.backgroundColor = [UIColor redColor]; [self.contentView addSubview:sendMessage]; self.sendMessage = sendMessage; }
内容赋值

(void)setChatContentValue:(NSDictionary *)dict
{
NSMutableAttributedString *attr = [[NSMutableAttributedString alloc] init];

NSMutableAttributedString *nick_attr = [[NSMutableAttributedString alloc] initWithString:dict[@"nick"]];
nick_attr.yy_color = [CommonFuction colorFromHexRGB:@"ffd944"];
nick_attr.yy_font = [UIFont boldSystemFontOfSize:16];
[attr appendAttributedString:nick_attr];

NSMutableAttributedString *message_attr = [[NSMutableAttributedString alloc] initWithString:dict[@"message"]];
message_attr.yy_color = [UIColor whiteColor];
message_attr.yy_font = [UIFont boldSystemFontOfSize:16];
[attr appendAttributedString:message_attr];

YYTextShadow *shadow = [YYTextShadow new];
shadow.color = [UIColor colorWithWhite:0.000 alpha:0.5];
shadow.offset = CGSizeMake(0, 0);
shadow.radius = 1;
attr.yy_textShadow = shadow;

attr.yy_lineSpacing = 0;
self.sendMessage.attributedText = attr;
}
我这样写了还是不可以。。。

[ibireme]

我猜，你是在添加了 Emoji 后，发现每行的高度变大了，然后希望调整 lineSpacing 来去掉行距？

如果你的问题是这样，那是因为 emoji 本身 font 自带的 ascent 和 descent 比一般字体要大，会把文本行撑高，这不是 line spacing 所能控制的。你可以试着给 label 添加一个 linePositionModifier，或者给 attr 设置一个 maximumLineHeight 属性。

如果不是这样，那我就看不出代码的问题了，提供一下截图和 Demo 来说明问题吧。