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When is a C++ destructor called?
Basic Question: when does a program call a class' destructor method in C++? I have been told that it is called whenever an object goes out of scope or is subjected to a delete
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UITableView Setting some cells as “unselectable”
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Kendall is right. Follow Sebastian Celis' answer to prevent didSelectRowAtIndexPath from being called in the first place. You should also set selectionStyle, though, to prevent the highlighting.
– Daniel D...
How to copy a file from one directory to another using PHP?
...o @henrywright, it do not create directories itself. You have to do it manually. check it on php manual
– Haseeb Zulfiqar
Sep 26 '16 at 12:56
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How do I add a library project to Android Studio?
... well-known Android library is available in a Maven repository and its installation takes only one line of code in the app/build.gradle file:
dependencies {
compile 'com.jakewharton:butterknife:6.0.0'
}
Adding the library
Here is the full process of adding external Android library to our pr...
Building and running app via Gradle and Android Studio is slower than via Eclipse
...-Dfile.encoding=UTF-8
# When configured, Gradle will run in incubating parallel mode.
# This option should only be used with decoupled projects. More details, visit
# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
org.gradle.parallel=true
# Enables ne...
Is it possible to decompile a compiled .pyc file into a .py file?
... .pyc bytecode into .py, whereas unpyclib crashed with an exception.
With all these tools, you get your code back including variable names, but without the comments.
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How do I write a custom init for a UIView subclass in Swift?
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The init(frame:) version is the default initializer. You must call it only after initializing your instance variables. If this view is being reconstituted from a Nib then your custom initializer will not be called, and instead the init?(coder:) version will be called. Since Swift now req...
CSS Selector “(A or B) and C”?
... syntax?
No. CSS' or operator (,) does not permit groupings. It's essentially the lowest-precedence logical operator in selectors, so you must use .a.c,.b.c.
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Can I change the size of UIActivityIndicator?
Whatever size i give to it while allocation, it shows fixed size only. Is it possible to increase it?
9 Answers
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When to use SELECT … FOR UPDATE?
... a DML query creates a copy of the record (in one or another way) and generally readers do not block writers and vice versa. For these databases, a SELECT FOR UPDATE would come handy: it would lock either SELECT or the DELETE query until another session commits, just as SQL Server does.
When sh...