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Declaring a custom android UI element using XML

... The Android Developer Guide has a section called Building Custom Components. Unfortunately, the discussion of XML attributes only covers declaring the control inside the layout file and not actually handling the values inside the class initialisation. The steps are as...
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How to use PrimeFaces p:fileUpload? Listener method is never invoked or UploadedFile is null / throw

...gure and troubleshoot <p:fileUpload> depends on PrimeFaces version. All PrimeFaces versions The below requirements apply to all PrimeFaces versions: The enctype attribute of the <h:form> needs to be set to multipart/form-data. When this is absent, the ajax upload may just work, but t...
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C++, Free-Store vs Heap

Dynamic allocations with new/delete are said to take place on the free-store , while malloc/free operations use the heap . I'd like to know if there is an actual difference, in practice. Do compilers make a distinction between the two terms? ( Free store and Heap , not new/malloc ) ...
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Recommended date format for REST GET API

... REST doesn't have a recommended date format. Really it boils down to what works best for your end user and your system. Personally, I would want to stick to a standard like you have for ISO 8601 (url encoded). If not having ugly URI is a concern (e.g. not including th...
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create a trusted self-signed SSL cert for localhost (for use with Express/Node)

...dejs/Express. None of them work properly because while the cert gets installed, it is not trusted. here's what I've tried that fails: ...
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Difference between Visual Basic 6.0 and VBA

... For nearly all programming purposes, VBA and VB 6.0 are the same thing. VBA cannot compile your program into an executable binary. You'll always need the host (a Word file and MS Word, for example) to contain and execute your project. ...
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remove legend title in ggplot

... This will remove all legend titles. For more local control, the guide = guide_legend() command works. To remove the fill legend title, but to keep the color legend title, e.g. scale_fill_brewer(palette = "Dark2", guide = guide_legend(title = ...
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How do I sort an array of hashes by a value in the hash?

... Actually, Array#sort_by! is new in Ruby 1.9.2. Available today to all Ruby version by requiring my backports gem too :-) – Marc-André Lafortune Jul 1 '10 at 4:19 ...
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What's the difference between Perl's backticks, system, and exec?

...It never returns true, because if the command is found it never returns at all. There is also no point in returning STDOUT, STDERR or exit status of the command. You can find documentation about it in perlfunc, because it is a function. system executes a command and your Perl script is con...
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Enabling auto layout in iOS 6 while remaining backwards compatible with iOS 5

...ve of your .app file. Does having two targets make that process harder at all? Thanks. – Crystal May 16 '13 at 2:55 add a comment  |  ...