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What is the relationship between Looper, Handler and MessageQueue in Android?
I have checked the official Android documentation/guide for Looper , Handler and MessageQueue . But I couldn't get it. I am new to android, and got very confused with these concepts.
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List comprehension with if statement
I want to compare 2 iterables and print the items which appear in both iterables.
4 Answers
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How do I write a for loop in bash
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The bash for consists on a variable (the iterator) and a list of words where the iterator will, well, iterate.
So, if you have a limited list of words, just put them in the following syntax:
for w in word1 word2 word3
do
doSomething($w)
done
Probably you want to iterate...
cv2.imshow command doesn't work properly in opencv-python
...e code created a window of the correct name, but its content is just blank and doesn't show the image:
15 Answers
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Using global variables between files?
...w the global variables work. I have a large project, with around 50 files, and I need to define global variables for all those files.
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C++ inheritance - inaccessible base?
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The default inheritance type of a class in C++ is private, so any public and protected members from the base class are limited to private. struct inheritance on the other hand is public by default.
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How to remove underline from a name on hover
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To keep the color and prevent an underline on the link:
legend.green-color a{
color:green;
text-decoration: none;
}
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improve...
CSS last-child(-1)
... Allen: I don't think he cares if he's already trying to use :nth-child(5) and :last-child. Comments like this should either go on the question or be kept to selves.
– BoltClock♦
Feb 10 '12 at 12:55
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Does a break statement break from a switch/select?
..., it must be that of an enclosing "for", "switch"
or "select" statement, and that is the one whose execution terminates
(§For statements, §Switch statements, §Select statements).
L:
for i < n {
switch i {
case 5:
break L
}
}
Therefore, the break statemen...
Why does the PHP json_encode function convert UTF-8 strings to hexadecimal entities?
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JSON_UNESCAPED_UNICODE was introduced in PHP 5.4.0, and is unavailable in earlier versions. When using it in earlier versions you will get this error: "Warning: json_encode() expects parameter 2 to be long, string given in ...". See CertaiN's answer below for 5.3 solution.
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