27、MATLAB GUI 回调函数与应用实例详解

MATLAB GUI 回调函数与应用实例详解

1. 按钮组回调函数

在处理按钮组时，不建议为按钮组内的单个按钮编写回调函数，而应使用按钮组的 SelectionChangedFcn 回调来响应最终用户选择按钮的操作。以下是一个管理两个单选按钮和两个切换按钮的按钮组 SelectionChangedFcn 回调示例代码：

function uibuttongroup1_SelectionChangedFcn(hObject, eventdata, handles)
% hObject    handle to the selected object in uibuttongroup1 
% eventdata  structure with the following fields
%    EventName: string 'SelectionChanged' (read only)
%    OldValue: handle of the previously selected object or empty
%    NewValue: handle of the currently selected object
% handles    structure with handles and user data (see GUIDATA)
switch get(eventdata.NewValue,'Tag') % Get Tag of selected object.
    case 'radiobutton1'
        display('Radio butt