Am currently creating a demo drawing and image editing app just for a practice. Have created few custom views and doing my drawings using draw rect. Thing is i keep writing NSLogs to check my points and contents of other objects frequently and i dont remove many of them, since i need them again and again. But observing that the logs are eating up processing time and making some of the drawing process laggy.
My question is, is there any method in xcode to remove all NSlogs at once while launching the app and add them again while testing.
Do something like this...
Click Command+Shift+F
Select Replace
And replace NSLog with //NSLog
Not so good solution, but still works! :)
Hi One method that i came to know is using the Find and replace option in xcode.
ie. say for eg you need to remove all NSLogs you have written in your entire project.
Find for the NSLog keyword in whole project (cmd+shift+F), then replace it with //NSLog. This would comment out all the NSLogs you have written.
When you need to uncomment the logs just do the opposite.
ie Find for the //NSLog keyword in whole project (cmd+shift+F), then replace it with NSLog. This would uncomment out all the NSLogs you have written and they print in the console again.
You can do this for particular files also by using just (cmd+F) instead of (cmd+shift+F)..
But not sure if xcode actually has a proper method to do this.
found one more good way of doing it, by defining your custom NSLog, using a macro like this:
MYLog(#"Count of student array-->%d",[studentArray count]);
And in your app-prefix.h file, which holds the common headers for all your files in the project define the 'MYLog' macro this way:-
#ifdef DEBUG
#define MYLog(f, ...) NSLog( #"<%#:(%d)> %#",[[NSString stringWithUTF8String:_FILE _] lastPathComponent], _LINE _, [NSString stringWithFormat:(f), ##_VA_ARGS _] )
#else
#define MYLog(f, ...)
#endif
So when you need to test, put your project in debug mode and when you need to run without the logs put your project in release mode. Simple..
ps FILE AND LINE are macros executed py the preprocessor to print the file name and line no in which the log is present. Try it out..
Related
I think the answer to this will be "no" but it doesn't hurt to ask - and get people thinking.
I'd like to be able to programmatically add VBA as a text string to a PowerPoint presentation I'm creating with python-pptx.
I know I can confect the XML to create a button that, when clicked, runs a macro that already exists in the .pptm file.
Because the macro is stored compiled I don't think I can inject it as text programmatically. (I checked the format of a .pptm file with a "Hello World" macro in and there is an extra file in it with non-text material in.)
I also don't know if I can write a .pptm (macro-enabled .pptx) file with python-pptx.
So, Has anyone experimented with this?
The best I think I might be able to do - in md2pptx - is allow the user to add buttons that call pre-existing macros in the template file when clicked on. Unless the user builds their own template file off one I supply I don't think that enables me to add general function (such as deleting the first slide or note taking).
When I call dequeueReusableCellWithIdentifier it is freezing my code and does never return any cell (or nil) I change the code from my custom class to a UITableViewCell to be sure the problem wasn't in my class, I also create a brand new empty cell to call with the identifier.
I add a log before and after the call for dequeueReusableCellWithIdentifier as you can see in the screenshot the one before gets called once and the one after never.
I try to clean and build, clean the project folder, delete DerivedData, restart the computer. I can't see any exceptions or what is really holding the code.
Any suggestions?
I am not sure what happened to XCode, but, if someone find the same problem here is what I had to do.
I didn't find anything wrong with the cell (yes I was using storyboard and the identifier was set correctly) and noting was wrong with the code in the custom class as well. I even went to the point of create a secondary custom class and custom cell and it did not help, so I try to put a invalid identifier and even there XCode did not return me an error (as it should).
I had to delete my custom cell from the storyboard, as soon as I did that all start to work again, first the error that the identifier didn't exist, than the temporary one start to work, than I recreate the original one (exactly as before) and all start to work again.
Very overkill but worked for me. Thanks for all the help!
It is expressed that you are printing println("return dequeueReusableCellWithIdentifier"), but can't see your return cell code at the end of your function, that must conform to your function expectation.
I have a GUI menu on Matlab with 4 buttons (menu.fig). Then I have 4 .fig file that I want to open when I click on the buttons. Here it's all ok, when I open a .fig from menu and insert value to do a plot I get this error:
???? Attempt to reference field of non-structure array.
If I try to open 1.fig directly, everything works perfectly.
I read that the problem is with eval(), but I can't solve it.
I changed the variable names on each .fig file
One 1.fig:
function pbutton1_Callback(hObject, eventdata, handles)
A1=get(handles.edtSAmp,'String');
f1=get(handles.edtSFreq, 'String');
fi1=get(handles.edtSFase, 'String');
t1=get(handles.popTipo, 'Value');
A1=str2double(A1);
f1=str2double(f1);
fi=str2double(fi1);
SinalSinusoidal(A1,f1,fi,t1);
I got the error on the that 1st line.
I guess this is something MATLAB GUI not handled well. I know it used to work, but when you tweaking your UI or UI related code a bit and accidentally you modified some area MATLAB told you not to touch, this kind of issue begin to happen.
The workaournd is to start the GUI from M editor by clicking run
I know it works, but originally, when I directly lauch it , it works too. so, this is not the end of it, people are just not getting to the end of it.
The problem is with probably with handles1. It's not a structure array like you expect it to be. In GUI's created with GUIDE, this variable is usually called handles, if you have both handles and handles1 make sure handles1 contains handles to the objects in the figure. If you're using handles1 only, make sure you're initializing it properly.
I`m absolutely new in Matlab, so I think it is a dumb question, but I would be really grateful for any help.
I had made a GUI with some slider. When I compile the m file everything works fine, there are no exceptions and the program do what it have to, but when I click on the fig file directly and try to move one of the sliders I got the following error:
??? Undefined function or method 'diference_GUI' for input arguments of type 'char'.
Error in ==>#(hObject,eventdata)diference_GUI('slider1_Callback',hObject,eventdata,guidata(hObject))
Error while evaluating uicontrol Callback
I had found some forum, blog article in this topic, but I want able to solve. Try-Catch not good, because if I do it, I dont get any error message, but the program still don`t do what it need.
Thank you for your help, Karoly
Your question isn't quite clear, but I'm assuming that you've made a GUI called difference_GUI using GUIDE in MATLAB.
When you do this, you'll get two files, difference_GUI.m and difference_GUI.fig. At that point, you should basically leave difference_GUI.fig alone, without opening or modifying it. Start the GUI by typing difference_GUI, which will run the .m file, which uses the information in the .fig file to lay out the GUI.
If you need to modify the layout of a GUI that you've created in GUIDE, you can open the project again in GUIDE and make minor modifications to it, such as repositioning a slider - but if you need to make major changes to it, I personally find it easier to copy the algorithmic portion out of the .m file, create an entirely new project, relaid out, from scratch, and then paste the algorithmic portion back in to the new .m file.
I have to maintain a large MATLAB GUI, containing quite a few callback functions, each of which gets called at many points. At some point, I decided to rename one of the callbacks; in order not to have to go through GUIDE to manually modify each of the UI that calls it, I used the excellent gencode program to "unwrap" the .fig file, s/old_name/new_name/g, and recreate the .fig.
This seems to work well, except for one thing: when clicking on a button in a button group, I got a message telling me that the function manageButtons is unknown. After a bit of googling, I find that manageButtons is a nested function in childAddedCbk, which, I assume, is called by GUIDE as the GUI is created. Now, trying to move just manageButtons outside to its own, in-the-path file doesn't work either: the hgroup passed to it is an invalid handle object.
So... does anyone has a workaround for that? Any of the following will be appreciated:
changing all the callbacks in a GUI in a semi-automatic way, or
making the manageButtons get a valid handle, or
having gencode not break all that.
Thanks,
Antony
You can export the FIG + M file to single .m file. You will lose the ability to edit this with guide, but you will be able to do a simple regular expression replace on the resulting .m file.
In order to do so - use on the menu of GUIDE -> File -> Export.