Matlab GUI编程，如何在一个callback回调函数中调用另一个回调函数

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Matlab GUI编程，如何在一个callback回调函数中调用另一个回调函数

2023-08-30 04:18| 来源: 网络整理| 查看: 265

一、如何在一个callback回调函数中调用另一个回调函数

网上找了好多帖子，都是在答非所问，我最终失去了耐心，自己去写个小demo碰碰运气吧，然后非常幸运，我解决了，哈哈，看下面的小案例。图形界面非常简单，如下图所示：在这里插入图片描述系统生成了一堆代码，里面也包含回调，代码如下：

function varargout = test(varargin) % TEST MATLAB code for test.fig % TEST, by itself, creates a new TEST or raises the existing % singleton*. % % H = TEST returns the handle to a new TEST or the handle to % the existing singleton*. % % TEST('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in TEST.M with the given input arguments. % % TEST('Property','Value',...) creates a new TEST or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before test_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to test_OpeningFcn via varargin. % % *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one % instance to run (singleton)". % % See also: GUIDE, GUIDATA, GUIHANDLES % Edit the above text to modify the response to help test % Last Modified by GUIDE v2.5 12-Nov-2019 19:14:56 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @test_OpeningFcn, ... 'gui_OutputFcn', @test_OutputFcn, ... 'gui_LayoutFcn', [] , ... 'gui_Callback', []); if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func(varargin{1}); end if nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:}); else gui_mainfcn(gui_State, varargin{:}); end % End initialization code - DO NOT EDIT % --- Executes just before test is made visible. function test_OpeningFcn(hObject, eventdata, handles, varargin) % This function has no output args, see OutputFcn. % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % varargin command line arguments to test (see VARARGIN) % Choose default command line output for test handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes test wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = test_OutputFcn(hObject, eventdata, handles) % varargout cell array for returning output args (see VARARGOUT); % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Get default command line output from handles structure varargout{1} = handles.output; % --- Executes on button press in pushbutton1. function pushbutton1_Callback(hObject, eventdata, handles) % hObject handle to pushbutton1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) disp('aaaaa'); % --- Executes on button press in pushbutton2. function pushbutton2_Callback(hObject, eventdata, handles) % hObject handle to pushbutton2 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) disp('bbbbb'); % --- Executes on button press in pushbutton3. function pushbutton3_Callback(hObject, eventdata, handles) % hObject handle to pushbutton3 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) pushbutton1_Callback(hObject, eventdata, handles); pushbutton2_Callback(hObject, eventdata, handles);

其中pushbutton1_Callback、pushbutton2_Callback、pushbuton3_Callback分别对应A、B、C三个按钮的点击回调函数。实现功能： 1、点击按钮A，可以打印aaaa 2、点击按钮B，可以打印bbbb 3、点击按钮C，可以执行按钮A和B的回调，打印aaaa bbbb

二、如何在自定义一个函数，然后调用按钮等控件的Callback回调函数呢？

我进行了一系列摸索和尝试。发现方法也不难，看下面的小案例：这个小案例的是基于上一个案例改的，代码如下：

function varargout = test(varargin) % TEST MATLAB code for test.fig % TEST, by itself, creates a new TEST or raises the existing % singleton*. % % H = TEST returns the handle to a new TEST or the handle to % the existing singleton*. % % TEST('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in TEST.M with the given input arguments. % % TEST('Property','Value',...) creates a new TEST or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before test_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to test_OpeningFcn via varargin. % % *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one % instance to run (singleton)". % % See also: GUIDE, GUIDATA, GUIHANDLES % Edit the above text to modify the response to help test % Last Modified by GUIDE v2.5 12-Nov-2019 19:14:56 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @test_OpeningFcn, ... 'gui_OutputFcn', @test_OutputFcn, ... 'gui_LayoutFcn', [] , ... 'gui_Callback', []); if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func(varargin{1}); end if nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:}); else gui_mainfcn(gui_State, varargin{:}); end % End initialization code - DO NOT EDIT % --- Executes just before test is made visible. function test_OpeningFcn(hObject, eventdata, handles, varargin) % This function has no output args, see OutputFcn. % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % varargin command line arguments to test (see VARARGIN) % Choose default command line output for test handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes test wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = test_OutputFcn(hObject, eventdata, handles) % varargout cell array for returning output args (see VARARGOUT); % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Get default command line output from handles structure varargout{1} = handles.output; % --- Executes on button press in pushbutton1. function pushbutton1_Callback(hObject, eventdata, handles) % hObject handle to pushbutton1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) disp('aaaaa'); % --- Executes on button press in pushbutton2. function pushbutton2_Callback(hObject, eventdata, handles) % hObject handle to pushbutton2 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) disp('bbbbb'); function myfun(hObject, eventdata, handles) pushbutton1_Callback(hObject, eventdata, handles); pushbutton2_Callback(hObject, eventdata, handles); % --- Executes on button press in pushbutton3. function pushbutton3_Callback(hObject, eventdata, handles) % hObject handle to pushbutton3 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) myfun(hObject, eventdata, handles);

其中pushbutton1_Callback、pushbutton2_Callback、pushbuton3_Callback分别对应A、B、C三个按钮的点击回调函数，myfun是我自定义的函数，我仿照回调函数的格式，传了三个参数hObject, eventdata, handles进去，结果成功调通了程序。实现功能： 1、点击按钮A，可以打印aaaa 2、点击按钮B，可以打印bbbb 3、点击按钮C，可以执行我自定义的myfun函数，而myfun函数调用了按钮A和B的回调，打印出了aaaa bbbb。也是项目需要才研究了这个东西，运气不错，顺利调通程序，哈哈哈。

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Matlab GUI编程，如何在一个callback回调函数中调用另一个回调函数

Matlab GUI编程，如何在一个callback回调函数中调用另一个回调函数

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