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iPhone Data Usage Tracking/Monitoring
...istics for each network interface.
In general en0 is your Wi-Fi interface and pdp_ip0 is your WWAN interface.
There is no good way to get information wifi/cellular network data since, particular date-time!
Data statistic (ifa_data->ifi_obytes and ifa_data->ifi_ibytes) are stored from prev...
Appending a vector to a vector [duplicate]
Assuming I have 2 standard vectors:
4 Answers
4
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Please explain the exec() function and its family
What is the exec() function and its family? Why is this function used and how does its work?
7 Answers
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Cannot refer to a non-final variable inside an inner class defined in a different method
...TheSoul points out.
This is why it doesn't work:
The variables lastPrice and price are local variables in the main() method. The object that you create with the anonymous class might last until after the main() method returns.
When the main() method returns, local variables (such as lastPrice and...
Is there a Null OutputStream in Java?
... I think Java 11 has only been out for one week.
– Brandon Yarbrough
Oct 5 '18 at 21:04
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Is Using .NET 4.0 Tuples in my C# Code a Poor Design Decision?
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Tuples are great if you control both creating and using them - you can maintain context, which is essential to understanding them.
On a public API, however, they are less effective. The consumer (not you) has to either guess or look up documentation, especially for thin...
How to Create Deterministic Guids
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This will convert any string into a Guid without having to import an outside assembly.
public static Guid ToGuid(string src)
{
byte[] stringbytes = Encoding.UTF8.GetBytes(src);
byte[] hashedBytes = new System.Security.Cryptogr...
How to check if Location Services are enabled?
I'm developing an app on Android OS. I don't know how to check if Location Services are enabled or not.
22 Answers
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Constructor overloading in Java - best practice
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While there are no "official guidelines" I follow the principle of KISS and DRY. Make the overloaded constructors as simple as possible, and the simplest way is that they only call this(...). That way you only need to check and handle the parameters once and only once.
public class Simple {
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ViewPager PagerAdapter not updating the View
...when you call notifyDataSetChanged(), the view pager will remove all views and reload them all. As so the reload effect is obtained.
The second option, suggested by Alvaro Luis Bustamante (previously alvarolb), is to setTag() method in instantiateItem() when instantiating a new view. Then instead o...