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How to add a delay for a 2 or 3 seconds [closed]
...tops the execution of the current thread for 2 seconds.
Probably the most appropriate scenario for Thread.Sleep is when you want to delay the operations in another thread, different from the main e.g. :
MAIN THREAD --------------------------------------------------------->
(UI, CONSOL...
Task not serializable: java.io.NotSerializableException when calling function outside closure only o
...rmation code (closure) is:
serialized on the driver node,
shipped to the appropriate nodes in the cluster,
deserialized,
and finally executed on the nodes
You can of course run this locally (as in your example), but all those phases (apart from shipping over network) still occur. [This lets you ...
how to get android screen size programmatically, once and for all?
...alues. It is correct that isn't precisely the display metrics, but if your application is full screen it should always be the full screen size filtered through the compatibility translator. Other applications won't have access to your application's Window, so there is no need to worry about some oth...
Android应用内存泄露分析、改善经验总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...属于共识，在编写代码的过程中就应该按照规则来，使用Application的Context就可以解决这类内存泄露的问题了，至于什么情况下应该使用四大组件的Context，什么时候应该使用Application的context可以参见下表：
application使用场景
...
The calling thread must be STA, because many UI components require this
...
Try to invoke your code from the dispatcher:
Application.Current.Dispatcher.Invoke((Action)delegate{
// your code
});
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Why is Thread.Sleep so harmful
...ep is pointless for timing.
Threads are a limited resource, they take approximately 200,000 cycles
to create and about 100,000 cycles to destroy. By default they
reserve 1 megabyte of virtual memory for its stack and use 2,000-8,000
cycles for each context switch. This makes any waiting ...
How to work with Git branches and Rails migrations
I am working on a rails app with quite a few git branches and many of them include db migrations. We try to be careful but occasionally some piece of code in master asks for a column that got removed/renamed in another branch.
...
Limitations of SQL Server Express
...this MSDN article says there's no limit:
The 4 GB database size limit applies
only to data files and not to log
files. However, there are no limits to
the number of databases that can be
attached to the server.
However, as mentioned in the comments and above, the database size limit w...
What's so wrong about using GC.Collect()?
...ule #2
Consider calling GC.Collect() if some
non-recurring event has just happened
and this event is highly likely to
have caused a lot of old objects to
die.
A classic example of this is if you're
writing a client application and you
display a very large and complicated
form that has a lot of data ...
VS2005混合编译ARM汇编代码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...）
ARM汇编代码，文件命名为armtest.asm：
; TITLE("Sample App")
;++
AREA sample, CODE, READONLY ; name this block of code
EXPORT TEST
IMPORT iGlobal
;
; Called from C as int ARMTEST1(int, int, int, int);
; The first 4 parameters are passed in r0-r3, ...