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Defining an abstract class without any abstract methods
...e if derivations of that class will have different contractual obligations from those of other derivations of the parent.
– supercat
Dec 29 '13 at 16:41
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Scatterplot with too many points
...pecify your own low and high colors, or use scale_fill_brewer() and choose from one of the sequential palettes.
– joran
Aug 12 '14 at 14:04
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Laravel migration: unique key is too long, even if specified
...or storing "emojis" in the database. If you are upgrading your application from Laravel 5.3, you are not required to switch to this character set.
Update 2
Current production MariaDB versions DO NOT support this setting by default globally. It is implemented in MariaDB 10.2.2+ by default.
Soluti...
How to delete multiple buffers in Vim?
...
:3,5bd[elete]
Will delete buffer range from 3 to 5 .
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How to calculate moving average without keeping the count and data-total?
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Beware that this is quite far from the common definition of average. If you set N = 5 and enter 5 5 samples, the average will be 0.67.
– Dan Dascalescu
Jan 9 '18 at 8:28
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What is the best way to implement a “timer”? [duplicate]
... If you have one, you can just drag a timer control onto your form from the Toolbox and it does all the above for you.
– Rob Sedgwick
Feb 6 '14 at 20:44
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Find out whether Chrome console is open
...ed
console.profiles (2013)
Update: console.profiles has been removed from Chrome. This solution no longer works.
Thanks to Paul Irish for pointing out this solution from Discover DevTools, using the profiler:
function isInspectOpen() {
console.profile();
console.profileEnd();
if (con...
Using margin:auto to vertically-align a div
... - I've never really looked into those issues but I do know that switching from absolute to relative is not in itself a solution to make this work. I read a little bit of your article and it looks like absolute and relative go up to the first absolute or relative ancestor, is that correct?
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The key must be an application-specific resource id
...atic final int TAG_ONLINE_ID = 1 + 2 << 24;
should work. More info from ceph3us:
The specified key should be an id declared in the resources of the
application to ensure it is unique Keys identified as belonging to the
Android framework or not associated with any package will cause a...
Trying to start a service on boot on Android
...rvice.class);
context.startService(startServiceIntent);
}
}
From the original question:
it's not clear if the <receiver> element was in the <application> element
it's not clear if the correct fully-qualified (or relative) class name for the BroadcastReceiver was specifie...