从 Matlab 中的单选按钮获取回调

Question

我有一个带有两个单选按钮的简单表单。通过更改选择，我想在回调函数中执行一些代码

这是我的示例代码，它不起作用：

classdef radioexample < handle
    %radioexample2 
    % example for radiobuttons


    properties(Hidden)
        % all elements of the GUI are properties of the class trechner
        formMain;   % "The MainWindow"
        menuFile;   % "The Menu Header"

        % radio items
        radiogroup
        radio1
        radio2

    end

    methods(Hidden)
        function obj = radioexample 
            % Constructor Form Main
            obj.formMain = figure('position',[400,400,600,260],'Visible','off'); 
            set(obj.formMain,'Name','Radioexample','NumberTitle','off',...
                'MenuBar','none','Resize','Off');

            % a menu for exit the program            
            obj.menuFile.main = uimenu('Label','File');            
            obj.menuFile.exit = uimenu(obj.menuFile.main,...
                'Label','Exit','Callback',{@obj.close_Callback,obj});

            % radiobutton to select the mode
            obj.radiogroup = uibuttongroup(obj.formMain,...
                'Visible','on',...
                'Units','pixels',...
                'BackGroundColor',[0.8 0.8 0.8],...
                'Position',[220 80 100 100]);
                %'SelectionChangedFcn',@obj.bselection);
            uicontrol(obj.radiogroup,...
                'Style',...
                'radiobutton',...
                'BackGroundColor',[0.8 0.8 0.8],...
                'String','Option 1',...
                'Position',[10 70 70 20],...
                'Callback',{@obj.opt1_Callback,obj},...
                'HandleVisibility','off');
            uicontrol(obj.radiogroup,...
                'Style',...
                'radiobutton',...
                'BackGroundColor',[0.8 0.8 0.8],...
                'String','Option 2',...
                'Position',[10 50 70 20],...
                'Callback',{@obj.opt2_Callback,obj},...
                'HandleVisibility','off');    

            set(obj.formMain,'Visible','on');
        end

    end

    methods(Static,Access=private)            
        function close_Callback(~,~,obj)  
            % close window
            close(obj.f)
        end

        function opt1_Callback(~)
            fprintf('switched to radio1 mode');  %Does not work
        end

        function opt2_Callback(~)
            fprintf('switched to radio2 mode');  %Does not work
            msgbox('switched to radio2 mode','Success'); %Does not work
        end

    end

    methods(Access=public,Hidden)
        function disp(obj)
        end
    end
end

回调函数没有得到executed/called。

Answer 1

这相对容易修复。只需在 uicontrol 行中进行以下替换：

'Callback',@obj.opt1_Callback,...

和

'Callback',@obj.opt2_Callback,...

回调函数需要两个输入参数。第一个是 uicontrol，第二个是 eventdata。如果您不需要输入参数，只需像这样添加另一个 ~：

function opt1_Callback(~,~)
    fprintf('switched to radio1 mode');
end

和

function opt2_Callback(~,~)
    fprintf('switched to radio2 mode');
    msgbox('switched to radio2 mode','Success');
end

另一种方法是像这样使用 uibuttongroup 的 SelectionChangedFcn-回调：

classdef radioexample < handle
    %radioexample2 
    % example for radiobuttons


    properties(Hidden)
        % all elements of the GUI are properties of the class trechner
        formMain;   % "The MainWindow"
        menuFile;   % "The Menu Header"

        % radio items
        radiogroup
        radio1
        radio2

    end

    methods(Hidden)
        function obj = radioexample 
            % Constructor Form Main
            obj.formMain = figure('position',[400,400,600,260],'Visible','off'); 
            set(obj.formMain,'Name','Radioexample','NumberTitle','off',...
                'MenuBar','none','Resize','Off');

            % a menu for exit the program            
            obj.menuFile.main = uimenu('Label','File');            
            obj.menuFile.exit = uimenu(obj.menuFile.main,...
                'Label','Exit','Callback',{@obj.close_Callback,obj});

            % radiobutton to select the mode
            obj.radiogroup = uibuttongroup(obj.formMain,...
                'Visible','on',...
                'Units','pixels',...
                'BackGroundColor',[0.8 0.8 0.8],...
                'Position',[220 80 100 100],...
                'SelectionChangedFcn',@obj.bselection);
            uicontrol(obj.radiogroup,...
                'Style',...
                'radiobutton',...
                'BackGroundColor',[0.8 0.8 0.8],...
                'String','Option 1',...
                'Position',[10 70 70 20],...
                'HandleVisibility','off');
            uicontrol(obj.radiogroup,...
                'Style',...
                'radiobutton',...
                'BackGroundColor',[0.8 0.8 0.8],...
                'String','Option 2',...
                'Position',[10 50 70 20],...
                'HandleVisibility','off');    

            set(obj.formMain,'Visible','on');
        end

        function bselection(source,~,callbackdata)
            switch callbackdata.NewValue.String
                case 'Option 1'
                    radioexample.opt1_Callback(source,callbackdata);
                case 'Option 2'
                    radioexample.opt2_Callback(source,callbackdata);
            end
        end

    end

    methods(Static,Access=private)            
        function close_Callback(~,~,obj)  
            % close window
            close(obj.f)
        end

        function opt1_Callback(~,~)
            fprintf('switched to radio1 mode');
        end

        function opt2_Callback(~,~)
            fprintf('switched to radio2 mode');
            msgbox('switched to radio2 mode','Success');
        end

    end

    methods(Access=public,Hidden)
        function disp(obj)
        end
    end
end

从 Matlab 中的单选按钮获取回调

Getting a callback from a radiobutton in Matlab

oop

matlab

callback

radio-button