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GUI edit box with the desktop path MAC

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Erdem Uguz
Erdem Uguz 2016-1-12
评论： Kamuran 2016-1-13
Hello, I am trying to set the box with the desktop path in Mac I get the user name using
if true
user_name = java.lang.System.getProperty('user.name');
set(handles.edit1,'String',['/Users/',user_name,'/Desktop']);
end
This is working in windows pc but not in mac. I receive The following error occurred converting from char to opaque: Undefined function 'opaque' for input arguments of type 'char'.
Any idea why it is not working?

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采纳的回答

Geoff Hayes
Geoff Hayes 2016-1-13
Erdem - look closely at the data type for user_name
user_name = java.lang.System.getProperty('user.name');
class(user_name)
ans =
java.lang.String
user_name is not a MATLAB character (char) array but is a string object instead. You need to convert this to a MATLAB character array using char as
user_name = char(java.lang.System.getProperty('user.name'));
set(handles.edit1,'String',['/Users/',user_name,'/Desktop']);
Try the above and see what happens!

更多回答（1 个）

Walter Roberson
Walter Roberson 2016-1-13
Why are you not using
set(handles.edit1, 'String' fullfile(getenv('HOME'), 'Desktop'))

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