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Detect Retina Display
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In order to detect the Retina display reliably on all iOS devices, you need to check if the device is running iOS4+ and if the [UIScreen mainScreen].scale property is equal to 2.0. You CANNOT assume a device is running iOS4+ if...
How can I make the Android emulator show the soft keyboard?
...store everything you write, also passwords. Give OK;
Repeat above steps in order to show "Change Keyboard" Dialog again, here the new option "Sample Soft Keyboard" is available and you can select it.
NOTE: after that, you might experience problems in running you app (as I had). Simply restart the ...
What does 'public static void' mean in Java?
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Since the questioner is still learning: the order of these keywords is also important. All modifiers first (public, static, private, etc.) then the return type (void in this case).
– Pindatjuh
Mar 5 '10 at 21:34
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missing private key in the distribution certificate on keychain
... Basically, we have a company developer account (not enterprise) and so in order to submit our app, I requested from our team lead to send me the distribution certificate and create and send me a distribution provisioning profile.
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How to apply shell command to each line of a command output?
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Quote the "$line" in the while loop, in order to avoid word splitting.
– ignis
Dec 10 '12 at 16:12
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Why shouldn't I use mysql_* functions in PHP?
...eceded by a colon, instead of question marks. We don't care about position/order of value in name place holder:
$stmt->bindParam(':bla', $bla);
bindParam(parameter,variable,data_type,length,driver_options)
You can also bind using an execute array as well:
<?php
$stmt = $db->prepare("S...
What is a Y-combinator? [closed]
...guy by the name of
Haskell Curry has a neat trick, if you have good higher order
functions then you only need functions of 1 variable. The
proof is that you can get from functions of 2 (or more in the
general case) variables to 1 variable with a purely
mechanical text transformation like this:
// ...
Getters \ setters for dummies
...examples, the internal property names are abstracted with an underscore in order to discourage users from simply doing foo.bar vs. foo.get( 'bar' ) and getting an "uncooked" value. You can use conditional code to do different things depending on the name of the property being accessed (via the name ...
How to loop through file names returned by find?
... bmargulies are safe to use with white space in the file/folder names.
In order to also have the - somewhat exotic - case of newlines in the file/folder names covered, you will have to resort to the -exec predicate of find like this:
find . -name '*.txt' -exec echo "{}" \;
The {} is the placehol...
How to close a Java Swing application from the code
...m lacking extraneous threads without explicitly calling System.exit(). In order to apply this example to applications using threads/listeners/timers/etc, one need only insert cleanup code requesting (and, if applicable, awaiting) their termination before the WindowEvent is manually initiated within...