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Why does .NET foreach loop throw NullRefException when collection is null?
...the answer might be obvious to some people, it is not obvious to everyone, and providing the hint that looking at the IL will tell you what the compiler is doing, helps people fish for themselves in the future.
– Robaticus
May 10 '17 at 23:36
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Android TextWatcher.afterTextChanged vs TextWatcher.onTextChanged
...t circumstances should I use afterTextChanged instead of onTextChanged and vice versa?
3 Answers
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How to detect orientation change in layout in Android?
...rientation change feature - e.g. when the layout changes from portrait to landscape (or vice versa). How can I detect when the orientation change event finished.
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How can I verify if a Windows Service is running
...dit: There is also a method sc.WaitforStatus() that takes a desired status and a timeout, never used it but it may suit your needs.
Edit: Once you get the status, to get the status again you will need to call sc.Refresh() first.
Reference: ServiceController object in .NET.
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JVM option -Xss - What does it do exactly?
...thread stack size", what does it mean exactly? Could anyone help me understand this?
4 Answers
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Create a hexadecimal colour based on a string with JavaScript
...a function that will accept any old string (will usually be a single word) and from that somehow generate a hexadecimal value between #000000 and #FFFFFF , so I can use it as a colour for a HTML element.
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convert UIImage to NSData
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@sergio I'm not experienced with non-ARC Obj-C and I wonder if releasing data would be enough or if there would still be a memory leak.
– mostruash
Jan 17 '14 at 15:15
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jQuery - get a list of values of an attribute from elements of a class
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@MandeepJain: How does one mark an answer as 'correct'? This one may not have been marked as 'accepted', but over 100 people have voted it 'useful', and that's good enough for me!
– Michael Scheper
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How can I check if an ip is in a network in Python?
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This article shows you can do it with socket and struct modules without too much extra effort. I added a little to the article as follows:
import socket,struct
def makeMask(n):
"return a mask of n bits as a long integer"
return (2L<<n-1) - 1
def dotted...
Android draw a Horizontal line between views
...ver gray colored Line between TextView & ListView
<TextView
android:id="@+id/textView1"
style="@style/behindMenuItemLabel1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="1dp"
android:text="FaceBook Feeds" />
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