I'm using a CursorLoader in a FragmentActivity following the sample code here.
When I try to compile, however, Eclispe gives me the error:
The method getActivity is undefined for the class
How I can solve this?
FragmentActivity does not have any getActivity() method like Fragment have. If you want to get the activity you should use this keyword inside FragmentActivity.
Related
I have the following pdfMake code block in my ionic app:
pdfMake.createPdf(docDefinition).getBase64(function (encodedString) {
pdfEncoded = encodedString;
console.log(pdfEncoded);
this.sendValue(pdfEncoded);
}
The error I am getting is:
Cannot read property 'sendValue' of undefined.
What do I need to do to call the sendValue() function? I am able to console.log the value of pdfEncoded but unable to pass the value to a function. Can someone let me know what I am doing wrong.
Thank you,
A
One reason of the error maybe because the keyword 'this' might be undefined inside your function(block). Check for that and see if the error is because of that and if it is try this :
let $this = this
And then inside your function use it as:
$this.sendValue(pdfEncoded);
Xcode 8/Swift 3
Can anyone please tell me why I am getting this "expected declaration" error? The use of delegates answered my last question perfectly without getting this error.
Googling other "expected declaration" problems suggests function calls etc being in the wrong place but I don't think thats the case here - I have tried placing delegate?.loadFirstView(viewFromModel: firstView) in a separate function and then calling that function but I just get the same error. See the screenshot below:
Thanks in advance!
P.S: below is a screenshot of when my use of a delegate worked perfectly.
Third Screenshot with delegate call in a separate function:
You have the code (delegate?.loadFirstView(viewFromModel : firstView)) in the wrong place in the class. So move it to any function.
In your working screenshot, the code is written inside the updateClock()method, thus working without any error.
class modelClass{
var delegate : LoadFirstViewProtocol?
let firstView = "First view loaded"
func testing()//Write here user defined method named
{
delegate?.loadFirstView(viewFromModel: firstView)
}
}
I am trying to create a very simple MFC application when suddenly Visual Studio decides it no longer recognizes what a BOOL is.
I cannot figure out why this is happening. Does anyone know why this is going on and how to fix it?
It looks like you're missing a closing semi-colon at the end of your class.
class CApp : public CWinApp {
...
}; <---
This is the proper class syntax. I'm sure you know that and just happened to delete it and missed the simple error. I would say when you look at the error report it's best to solve the topmost one first. Doing so can eliminate other errors in the list especially in the case of a ;. Your image reflects that on the first line where it tells you about a missing ;.
I get confused when I get errors like these
I have
FxSmartPtr<FxStreamable> able(FcNew,stream->StreamInObject());
FxGlobalPair pair(id,able);
I get an error on FxGlobalPair pair(id,able); that is able is not a type.
I tried modifying to
FxGlobalPair pair(id,FxSmartPtr<FxStreamable>::able);
but I get an error that is error: 'class FxSmartPtr<FxStreamable>::able' has not been declared
What concept am I missing?
UPDATE: typedef pair<FxID, FxSmartPtr<FxStreamable> > FxGlobalPair;
UPDATE 2:
Heading
I think that you have found the Most Vexing parse
The problem is that
FxSmartPtr able(FcNew,stream->StreamInObject());
may define a function named able, instead of a variable.
So I'm trying to make use of a GtkSourceView in C++ using GtkSourceViewmm, whose documentation and level of support give me the impression that it hasn't been very carefully looked at in a long time. But I'm always an optimist :)
I'm trying to add a SourceView using some code similar to the following:
Glib::RefPtr<gtksourceview::SourceLanguageManager> source_language_manager = gtksourceview::SourceLanguageManager::create();
Glib::RefPtr<gtksourceview::SourceLanguage> source_language = Glib::wrap(gtk_source_language_manager_guess_language(source_language_manager->gobj(), file, NULL));
Glib::RefPtr<gtksourceview::SourceBuffer> source_buffer = gtksourceview::SourceBuffer::create(source_language);
gtksourceview::SourceView* = m_source_view = new gtksourceview::SourceView(source_buffer);
m_vbox.pack_start(*m_source_view);
Unfortunately, it spits out the warning
(algoviz:4992): glibmm-WARNING **:
Failed to wrap object of type
'GtkSourceLanguage'. Hint: this error
is commonly caused by failing to call
a library init() function.
and when I look at it in a debugger, indeed the second line above (the one with the Glib::wrap()) is returning NULL. I have no idea why this is, but I tried to heed the warning by adding Glib::init() to the begining of the program, but that didn't seem to help at all either.
I've tried Google'ing around, but have been unsuccessful. Does anyone know what Glib wants me to init in order to be able to make that wrap call? Or, even better, does anyone know of any working sample code that uses GtkSourceViewmm (not just regular GtkSourceView)? I haven't been able to find any actual sample code, not even on Google Code Search.
Thanks!
It turns out, perhaps not surprisingly, that what I needed to init was:
gtksourceview::init();
After this, I ran into another problem with one of the parameter to gtksourceview::SourceLanguageManager, but this was caused by a genuine bug which I subsequently reported and was promptly fixed. So everything's working great now!
I use gtkmm. Typically you have to initialize things with something like :
_GTKMain = new Gtk::Main(0, 0, false);
Of course do not forget :
delete _GTKMain;
Check here for details :
http://library.gnome.org/devel/gtkmm/2.19/classGtk_1_1Main.html
(Sorry but the link option does not work ...)