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Retina displays, high-res background images
...age
No, but you do need to set the background-size property to match the original dimensions:
@media (-webkit-min-device-pixel-ratio: 2),
(min-resolution: 192dpi) {
.box{
background:url('images/box-bg@2x.png') no-repeat top left;
background-size: 200px 200px;
}
}
ED...
How to position one element relative to another with jQuery?
...: "left top",
at: "left bottom",
of: this, // or $("#otherdiv")
collision: "fit"
});
For fast positioning (jQuery UI/Position).
You can download jQuery UI here.
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Get loop count inside a Python FOR loop
In a Python for loop that iterates over a list we can write:
5 Answers
5
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What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it?
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Your first port of call should be the documentation which explains it reasonably clearly:
Thrown to indicate that an array has been accessed with an illegal index. The index is either negative or greater than or equal to the size of ...
How to make maven build platform independent?
...ncoding>
</properties>
Absence of this means you are using platform specific encoding and that's why the warning.
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What does -> mean in Python function definitions?
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It's a function annotation.
In more detail, Python 2.x has docstrings, which allow you to attach a metadata string to various types of object. This is amazingly handy, so Python 3 extends the feature by allowing you to attach metadata to functions describin...
Synchronise ScrollView scroll positions - android
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protected void onScrollChanged(int x, int y, int oldx, int oldy)
Unfortunately Google never thought that we would need to access it, which is why they made it protected and didn't add a "setOnScrollChangedListener" hook. So we will have to do that for ourselves.
First we need an interface.
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Avoiding an ambiguous match exception
...used why you'd write that comment - and why you consider matters of style worth discussing?
– Benjamin Podszun
Dec 1 '16 at 16:32
9
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Intellij IDEA Java classes not auto compiling on save
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UPDATED
For IntelliJ IDEA 12+ releases we can build automatically the edited sources if we are using the external compiler option. The only thing needed is to check the option "Build project automatically", located under "Compiler" se...
Java optional parameters
How do I use optional parameters in Java? What specification supports optional parameters?
17 Answers
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