iOS UI 布局：使用 Masonry 设置控件距离其他控件上方的距离

"ios" [callButton mas_makeConstraints:^(MASConstraintMaker *make) {\n make.top.equalTo(weakSelf.infoView.mas_bottom).mas_offset(10);\n make.right.mas_equalTo(weakSelf.view).offset(-wid(15));\n make.width.height.mas_equalTo(wid(45));\n make.bottom.mas_equalTo(weakSelf.chat.inputController.view).offset(wid(15));\n// make.bottom.mas_equalTo(weakSelf.chat.inputController.view.y-wid(28.33));\n }];\n设置距离weakSelf.chat.inputController.view的y上面15的高度内容：将make.bottom的约束改为make.bottom.equalTo(weakSelf.chat.inputController.view.mas_top).offset(-wid(15))。这将设置距离weakSelf.chat.inputController.view的上方15的高度。