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What happens if a Android Service is started multiple times?
...so says there: "The startService() method returns immediately and the Android system calls the service's onStartCommand() method. If the service is not already running, the system first calls onCreate(), then calls onStartCommand()." So if the service is already running then the system will skip the...
Calling JMX MBean method from a shell script
... (and no development since 2006 it looks like)
Groovy script and JMX - provides some really powerful JMX functionality but requires groovy and other library setup.
JManage command line
functionality - (downside is
that it requires a running JManage
server to proxy commands through)
Groovy JMX Exam...
Add primary key to existing table
...RAINT <constraint_name>
alter table Persion add primary key (persionId,Pname,PMID)
edit:
you can find the constraint name by using the query below:
select OBJECT_NAME(OBJECT_ID) AS NameofConstraint
FROM sys.objects
where OBJECT_NAME(parent_object_id)='Persion'
and type_desc LIKE '%CONSTRA...
Can you nest html forms?
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I agree with what others have said. This limitation seems arbitrary and harmful.
– aroth
Jul 7 '14 at 6:43
15
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jQuery delete all table rows except first
...on, queries using :gt() cannot take advantage of the performance boost provided by the native DOM querySelectorAll() method. For better performance in modern browsers, use $("your-pure-css-selector").slice(index) instead. I would recommend using $("#mytable > tr").slice(1).remove();
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Get to UIViewController from UIView?
...o implement it follows:
@protocol MyViewDelegate < NSObject >
- (void)viewActionHappened;
@end
@interface MyView : UIView
@property (nonatomic, assign) MyViewDelegate delegate;
@end
@interface MyViewController < MyViewDelegate >
@end
The view interfaces with its delegate (as UI...
Django - How to rename a model field using South?
...column name of the database (not the model field name), for example: "user_id" and "full_name" would be the new name you want the column to have (again, database column and not field name). So: db.rename_column('mainapp_profile', 'user_id', 'new_user_id') Also, if you're dealing with foreign keys,...
print memory address of Python variable [duplicate]
How do I print the memory address of a variable in Python 2.7?
I know id() returns the 'id' of a variable or object, but this doesn't return the expected 0x3357e182 style I was expecting to see for a memory address.
I want to do something like print &x , where x is a C++ int variable for exam...
Return multiple values to a method caller
I read the C++ version of this question but didn't really understand it.
27 Answers
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Gradients on UIView and UILabels On iPhone [duplicate]
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You could also use a graphic image one pixel wide as the gradient, and set the view property to expand the graphic to fill the view (assuming you are thinking of a simple linear gradient and not some kind of radial graphic).
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