在Matlab中从不同的GUI调用GUI函数 [英] Calling GUI function from different GUI in Matlab

问题描述

我有两个GUI文件，如下所示:

I have two GUI files, which are as follows:

gui1.m

function varargout = gui1(varargin)

gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @gui1_OpeningFcn, ...
                   'gui_OutputFcn',  @gui1_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


function gui1_OpeningFcn(hObject, eventdata, handles, varargin)

handles.output = hObject;

guidata(hObject, handles);

function varargout = gui1_OutputFcn(hObject, eventdata, handles) 

varargout{1} = handles.output;

function text_Callback(hObject, eventdata, handles)



function text_CreateFcn(hObject, eventdata, handles)

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end


function pushbutton1_Callback(hObject, eventdata, handles)

a = get(handles.text,'String');
disp(a);

此gui1.m具有一个编辑框和一个按钮，当我单击pushbutton1时，它将显示其内容.现在，我尝试使用以下代码对不同的GUI界面执行相同的操作.

This gui1.m has a edit box and a button, when ever I click on the pushbutton1 it displays the content of it. Now I am trying to do the same with a different GUI interface with the following code.

gui2.m

function varargout = gui2(varargin)
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @gui2_OpeningFcn, ...
                   'gui_OutputFcn',  @gui2_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

function gui2_OpeningFcn(hObject, eventdata, handles, varargin)

handles.output = hObject;

guidata(hObject, handles);

function varargout = gui2_OutputFcn(hObject, eventdata, handles) 

varargout{1} = handles.output;


function pushbutton1_Callback(hObject, eventdata, handles)

gui1('pushbutton1_Callback', hObject, eventdata, handles);

因此，当我单击gui2.m的按钮pushbutton1时，出现以下错误

so when I click on the button pushbutton1 of gui2.m I get the following error

Reference to non-existent field 'text'.

Error in gui1>pushbutton1_Callback (line 44)
a = get(handles.text,'String');

Error in gui_mainfcn (line 96)
        feval(varargin{:});

Error in gui1 (line 17)
    gui_mainfcn(gui_State, varargin{:});

Error in gui2>pushbutton1_Callback (line 32)
gui1('pushbutton1_Callback', hObject, eventdata,
handles);
Error in gui_mainfcn (line 96)
        feval(varargin{:});

Error in gui2 (line 16)
    gui_mainfcn(gui_State, varargin{:});

Error in
@(hObject,eventdata)gui2('pushbutton1_Callback',hObject,eventdata,guidata(hObject))


Error while evaluating uicontrol Callback

谁能告诉我问题出在哪里?因为当我删除set并将其分配给gui1.m中的变量a并按gui2.m中的按钮时，我能够显示a的值.

Could anyone tell me what the problem is? because when i remove the set this and assign some number to variable a in gui1.m and press the button in gui2.m I am able to display the value of a.

推荐答案

您需要在两个GUI之间共享数据:将要共享的数据(gui1的本地数据)传递给共享变量(即)在gui1的pushbutton1_Callback函数中，只需调用gui2;而不是gui1('pushbutton1_Callback', hObject, eventdata, handles);.然后，在gui2的pushbutton1_Callback中，您可以检索共享数据MySharedData并对数据进行所需的操作.

You need a shared data between two GUIs: pass the data (local data of gui1) that you want to share to a shared variable (i.e MySharedData) in gui1's pushbutton1_Callback function, and just call gui2; instead of gui1('pushbutton1_Callback', hObject, eventdata, handles);. Then in gui2's pushbutton1_Callback you can retrieve the shared data MySharedData and do what you want with the data.

有一些说明:

http://www.mathworks.com/help/matlab/creating_guis/share-data-among-callbacks.html

http: //www.mathworks.com/matlabcentral/answers/338-how-to-pass-data-from-one-gui-to-other

更新:

更简单的方法，但我认为不太可靠:当调用gui1的按钮时，将值分配给工作区的变量(assignin('base', 'varname', value))，然后在gui2的按钮CallbackFcn中可以获取变量与val = evalin('base', 'varname').

More easier way but in my opinion less reliable: when you call gui1's pushbutton, assign the value to a workspace's variable (assignin('base', 'varname', value)), then in gui2's pushbutton CallbackFcn you can get the variable with val = evalin('base', 'varname').

这篇关于在Matlab中从不同的GUI调用GUI函数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！