[self.speakerButton mas_remakeConstraints:^(MASConstraintMaker *make) { make.left.equalTo(self.authorSepLineView.mas_right).offset(5); make.centerY.equalTo(self.authorButton.mas_centerY); make.height.equalTo(@15); }];
原文：http://www.cnblogs.com/qiyiyifan/p/7641791.html