大约有 43,000 项符合查询结果（耗时：0.0163秒） [XML]
Draw text in OpenGL ES
...
Rendering text to a texture is simpler than what the Sprite Text demo make it looks like, the basic idea is to use the Canvas class to render to a Bitmap and then pass the Bitmap to an OpenGL texture:
// Create an empty, mutable bitmap
Bitmap bitmap = Bitmap.createBitmap(256, 256, Bitmap....
How to play audio?
...t
soundManager.play('mySound');
});
</script>
Here's a demo of it in action: http://www.schillmania.com/projects/soundmanager2/demo/christmas-lights/
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Twitter API returns error 215, Bad Authentication Data
...don all that work!
ksort($oauth); // probably not necessary, but twitter's demo does it
// also not necessary, but twitter's demo does this too
function add_quotes($str) { return '"'.$str.'"'; }
$oauth = array_map("add_quotes", $oauth);
// this is the full value of the Authorization line
$auth = "...
Get current time as formatted string in Go?
...o 1.0.3)
t := time.Now()
fmt.Println(t.Format("20060102150405"))
Online demo (with date fixed in the past in the playground, never mind)
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fol...
How to record webcam and audio using webRTC and a server-based Peer connection
...are planning here. It is really easy to add recording capabilities to that demo, and store the media file in a URI (local disk or wherever).
The project is licensed under LGPL Apache 2.0
EDIT 1
Since this post, we've added a new tutorial that shows how to add the recorder in a couple of scenari...
How to keep environment variables when using sudo
...d
sudo VAR1="$VAR1" ... VAR42="$VAR42" "$@" was long and ugly in my case
demo.sh
#!/bin/bash
function sudo_exports(){
eval sudo $(for x in $_EXPORTS; do printf '%q=%q ' "$x" "${!x}"; done;) "$@"
}
# create a test script to call as sudo
echo 'echo Forty-Two is $VAR42' > sudo_test.sh
chmod...
jQuery table sort
... });
inverse = !inverse;
});
});
And a demo. (click the "city" and "facility" column-headers to sort)
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follow...
C++ equivalent of java's instanceof
...t; Class::baseTypeContainer = Class::getTypeIndexes(Class::BaseTypes());
Demo
You can then use this stuff (with caution) as follows:
DemoClassHierarchy.hpp*
#include "InstanceOfMacros.h"
struct A {
virtual ~A() {}
INSTANCE_OF_BASE_DECL(A)
};
INSTANCE_OF_IMPL(A)
struct B : public A {
vir...
What is the difference between varchar and varchar2 in Oracle?
...egards to the functionality described in the accepted answer:-
Rextester demo for Oracle 11g:
Empty strings are inserted as NULLs for both VARCHAR
and VARCHAR2.
LiveSQL demo for Oracle 12c: Same results.
The historical reason for these two keywords is explained well in an answer to a different q...
What is your naming convention for stored procedures? [closed]
...text of the current database.
Here's a nice explanation, which includes a demo of the performance hit.
Here's another helpful source provided by Ant in a comment.
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