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Call an activity method from a fragment
... Kotlin developers
(activity as YourActivityClassName).methodName()
For Java developers
((YourActivityClassName) getActivity()).methodName();
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How do I clear stuck/stale Resque workers?
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It returns a list of workers
#=> [#<Worker infusion.local:40194-0:JAVA_DYNAMIC_QUEUES,index_migrator,converter,extractor>]
pick the worker and prune_dead_workers, for example the first one
Resque.workers.first.prune_dead_workers
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What is a wrapper class?
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Your answer is only valid in the strict Java terminology, whilst the original question was language agnostic.
– Honza Zidek
Jul 3 at 9:47
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Member '' cannot be accessed with an instance reference
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In C#, unlike VB.NET and Java, you can't access static members with instance syntax. You should do:
MyClass.MyItem.Property1
to refer to that property or remove the static modifier from Property1 (which is what you probably want to do). For a conc...
What is the “-->” operator in C++?
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In Java it also compiles :)
– Steven Devijver
Feb 12 '13 at 8:07
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How can I output leading zeros in Ruby?
...intf, but similar formating functions are available in perl, ruby, python, java, php, etc.
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Error: The processing instruction target matching “[xX][mM][lL]” is not allowed
...e the <?xml> tag, removed it and it worked !
– JavaTec
Jan 19 '18 at 20:34
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How to discover number of *logical* cores on Mac OS X?
... time (in top):
PID COMMAND %CPU
4306 top 5.6
4304 java 745.7
4296 locationd 0.0
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How to determine device screen size category (small, normal, large, xlarge) using code?
...:-) But for those (like me) forced to still support Android 1.5 we can use java reflection for backward compatible:
Configuration conf = getResources().getConfiguration();
int screenLayout = 1; // application default behavior
try {
Field field = conf.getClass().getDeclaredField("screenLayout");...
How can I get Docker Linux container information from within the container itself?
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To get the hostname that matches the Container Id in Java, use InetAddress.getLocalHost().getHostName().
– Nathan
Jan 18 '19 at 0:15
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