大约有 2,373 项符合查询结果（耗时：0.0279秒） [XML]
John Carmack's Unusual Fast Inverse Square Root (Quake III)
...ulates the inverse square root of a float, 4x faster than regular (float)(1.0/sqrt(x)) , including a strange 0x5f3759df constant. See the code below. Can someone explain line by line what exactly is going on here and why this works so much faster than the regular implementation?
...
Referencing a string in a string array resource with xml
...s defining a resources array in strings.xml like below.
<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE resources [
<!ENTITY supportDefaultSelection "Choose your issue">
<!ENTITY issueOption1 "Support">
<!ENTITY issueOption2 "Feedback">
<!ENTITY issueO...
How do I give text or an image a transparent background using CSS?
...p-equiv="X-UA-Compatible" content="IE=edge" >
<title>An XHTML 1.0 Strict standard template</title>
<meta http-equiv="content-type" content="text/html;charset=utf-8" />
<style type="text/css" media="all">
.transparent-background-with-text-and-images-on...
What is the difference between MVC and MVVM? [closed]
... to send information back to the controller. MVC was built on top of HTTP 1.0 which always had two way communication in mind.
– John Peters
Oct 15 '14 at 13:43
...
C++11 rvalues and move semantics confusion (return statement)
...}
std::vector vec;
for(int x=0; x<10; ++x)
{
MyExpensiveType temp(1.0, 3.0);
temp.initSomeOtherFields(malloc(5000));
// old way, passed via const reference, expensive copy
vec.push_back(temp);
// new way, passed via rvalue reference, cheap move
// just don't use temp a...
How do browsers pause/change Javascript when tab or window is not active?
...r interval for background tabs.
const double kBackgroundTabTimerInterval = 1.0;
https://codereview.chromium.org/6546021/patch/1001/2001
Firefox
Similar to Chrome, Firefox limits the minimum interval of setInterval to around 1000ms when the tab (not the window) is inactive. However, requestAnimati...
How to securely store access token and secret in Android?
... 16
targetSdkVersion 26
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
// Create BuildConfig variables
buildConfigField "String", "ACCESS_TOKEN", keystoreProperties["ACCESS_TOKEN"]
bu...
Regular expression for floating point numbers
... most languages consider valid numbers (integer and floats):
'5' / '-5'
'1.0' / '1.' / '.1' / '-1.' / '-.1'
'0.45326e+04', '666999e-05', '0.2e-3', '-33.e-1'
Notes:
preceding sign of number ('-' or '+') is optional
'-1.' and '-.1' are valid but '.' and '-.' are invalid
'.1e3' is valid, but '.e3...
XmlSerializer: remove unnecessary xsi and xsd namespaces
... }
}
}
}
To get the following XML:
<?xml version="1.0"?>
<Person xmlns="http://www.something.org/schema">
<FirstName>Donald</FirstName>
<LastName>Duck</LastName>
</Person>
If you don't want the namespace, just set DEFAULT_NAMESPAC...
Why doesn't RecyclerView have onItemClickListener()?
... / Java
Create a file values/ids.xml and put this in it:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<item name="item_click_support" type="id" />
</resources>
then add the code below to your source
Kotlin
Usage:
recyclerView.onItemClick { recyclerView, position, v...