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Disabling implicit animations in -[CALayer setNeedsDisplayInRect:]
I've got a layer with some complex drawing code in its -drawInContext: method. I'm trying to minimize the amount of drawing I need to do, so I'm using -setNeedsDisplayInRect: to update just the changed parts. This is working splendidly. However, when the graphics system updates my layer, it's transi...
How do I install Maven with Yum?
...wards the process is easy
Run the wget command from the dir you want to extract maven too.
run the following to extract the tar,
tar xvf apache-maven-3.0.5-bin.tar.gz
move maven to /usr/local/apache-maven
mv apache-maven-3.0.5 /usr/local/apache-maven
Next add the env variables to your ~/.bas...
How to override the [] operator in Python?
... and __delslice__' have been deprecated for the last few releases of ver 2.x (not sure exactly when), and are no longer supported in ver 3.x. Instead, use __getitem__. __setitem__` and __delitem__' and test if the argument is of type slice, i.e.: if isinstance(arg, slice): ...
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dyld: Library not loaded: @rpath/libswift_stdlib_core.dylib
I get this error after adding a Swift class to an old Xcode project.
36 Answers
36
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How can I measure the actual memory usage of an application or process?
...unt of memory reserved for it
can be misleading if pages are shared, for example by several threads or by using dynamically linked libraries
If you really want to know what amount of memory your application actually uses, you need to run it within a profiler. For example, Valgrind can give you in...
When maven says “resolution will not be reattempted until the update interval of MyRepo has elapsed”
...he corresponding failed to download artifact directory in my local repo. Next time I run the maven command the artifact download is triggered again. Therefore I'd say it's a client side setting.
Nexus side (server repo side), this issue is solved configuring a scheduled task.
Client side, this is ...
mailto link with HTML body
...he "body" field value is intended to
contain the content for the first text/plain body part of the
message. The "body" pseudo header field is primarily intended for
the generation of short text messages for automatic processing (such
as "subscribe" messages for mailing lists), not for gener...
Compare double to zero using epsilon
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Assuming 64-bit IEEE double, there is a 52-bit mantissa and 11-bit exponent. Let's break it to bits:
1.0000 00000000 00000000 00000000 00000000 00000000 00000000 × 2^0 = 1
The smallest representable number greater than 1:
1.0000 00000000 00000000 00000000 00000000 00000000 00000001 × 2^...
Is .NET/Mono or Java the better choice for cross-platform development? [closed]
...orms than Mono. Also, Mono is starting to see some much improved tooling (Xamarin), and Microsoft seems to have a much more cross-platform kind of attitude and willingness to work with partners to make them complimentary, rather than competitive (for example, Mono will be a pretty important part of...
Best way to do multi-row insert in Oracle?
...g makes more sense if you put "union all" at the end of each select line (except for the last).
– Jamie
Apr 25 '17 at 20:34
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