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Programmatically obtain the phone number of the Android phone
... caveats to be aware of. This can return null or "" or even "???????", and it can return a stale phone number that is no longer valid. If you want something that uniquely identifies the device, you should use getDeviceId() instead.
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Is there a way to @Autowire a bean that requires constructor arguments?
... possible. One of the beans that I need to autowire requires arguments to its constructor. I've looked through the Spring docs, but cannot seem to find any reference to how to annotate constructor arguments.
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Nullable type as a generic parameter possible?
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Change the return type to Nullable<T>, and call the method with the non nullable parameter
static void Main(string[] args)
{
int? i = GetValueOrNull<int>(null, string.Empty);
}
public static Nullable<T> GetValueOrNull<T>(DbDataRecord reader, string columnName) ...
Animate visibility modes, GONE and VISIBLE
So im trying to animate when i set the visibility of a linearlayout with other widgets, from GONE to VISIBLE and the opposite.Im using togglebuttons to show and hide. Here's an image to show what i want to do:
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Paused in debugger in chrome?
... even if there are no break points set, and if the the pause is un-paused, it again pauses itself.
16 Answers
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Activity restart on rotation Android
...plication, when I rotate the device (slide out the keyboard) then my Activity is restarted ( onCreate is called). Now, this is probably how it's supposed to be, but I do a lot of initial setting up in the onCreate method, so I need either:
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Viewing contents of a .jar file
...follow
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edited Aug 3 '18 at 9:12
karthik manchala
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How can I prevent the “You have mixed tabs and spaces. Fix this?” message?
...le, I get the dreaded "You have mixed tabs and spaces. Fix this?" message. It has three options:
4 Answers
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What is the difference between mutex and critical section?
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For Windows, critical sections are lighter-weight than mutexes.
Mutexes can be shared between processes, but always result in a system call to the kernel which has some overhead.
Critical sections can only be used within one process, but ...
The Role Manager feature has not been enabled
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You can do this by reading from the boolean property at:
System.Web.Security.Roles.Enabled
This is a direct read from the enabled attribute of the roleManager element in the web.config:
<configuration>
<system.web>
<roleManager enabled="true" />
</system.web>
<...