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How to define a preprocessor symbol in Xcode
..., and select "Add User-Defined Setting". The new setting name should be GCC_PREPROCESSOR_DEFINITIONS, and you can type your definitions in the right-hand field.
Per Steph's comments, the full syntax is:
constant_1=VALUE constant_2=VALUE
Note that you don't need the '='s if you just want to #defi...
How to find and turn on USB debugging mode on Nexus 4
...his can be done by pressing the
Menu button while on your home screen and tapping “System settings”
Now scroll to the bottom and tap “About phone” or “About tablet”.
At the “About” screen, scroll to the bottom and tap on “Build number”
seven times.
Make sure you tap seven time...
Is it possible to change a UIButtons background color?
... & alpha). I defn'ed 2 color arrays, one for each state, and chose the appropriate one in drawRect based on the button state.
– daver
Aug 13 '13 at 2:25
...
Sound effects in JavaScript / HTML5
...er the browser supports Ogg Vorbis.
If you're writing a game or a music app (more than just a player), you'll want to use more advanced Web Audio API, which is now supported by most browsers.
share
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Why does Google +1 record my mouse movements? [closed]
...
It appears to be seeding a random number generator with your mouse movements.
The mouse move handler itself does something along the lines of the following:
var b = ((event.X << 16) + event.Y) * (new Date().getTime() % 1...
How do I create a transparent Activity on Android?
... can also use @android:color/transparent in later Android versions.)
Then apply the style to your activity, for example:
<activity android:name=".SampleActivity" android:theme="@style/Theme.Transparent">
...
</activity>
...
Rails render partial with block
...Here is some content</p>
<% end %>
combined with:
# /shared/_panel.html.erb
<div class="v-panel">
<div class="v-panel-tr"></div>
<h3><%= title -%></h3>
<div class="v-panel-c">
<%= yield %>
</div>
</div>
...
“Uncaught TypeError: Illegal invocation” in Chrome
...) which is part of ES5 standard and available in all modern browsers.
var _raf = window.requestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.msRequestAnimationFrame ||
window.oRequestAnimationFrame;
var support = {...
Alternative to iFrames with HTML5
...patible among browser versions, it creates additional challenges (shrink wrapping the size of the frame to its content is tough, insanely frustrating to script into/out of, nearly impossible to style).
AJAX. As the solutions shown here prove, you can use the XMLHttpRequest object to retrieve data an...
Redis cache vs using memory directly
...teresting properties:
Redis can be accessed by all the processes of your applications, possibly running on several nodes (something local memory cannot achieve).
Redis memory storage is quite efficient, and done in a separate process. If the application runs on a platform whose memory is garbage c...