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How to perform Callbacks in Objective-C
...egate implementation;
Header File:
@interface MyClass : NSObject {
id delegate;
}
- (void)setDelegate:(id)delegate;
- (void)doSomething;
@end
@interface NSObject(MyDelegateMethods)
- (void)myClassWillDoSomething:(MyClass *)myClass;
- (void)myClassDidDoSomething:(MyClass *)myClass;
@end
...
jQuery add image inside of div tag
...
Have you tried the following:
$('#theDiv').prepend('<img id="theImg" src="theImg.png" />')
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NSURLRequest setting the HTTP header
...P header for a request. In the documentation for the NSURLRequest class I didn't find anything regarding the HTTP header. How can I set the HTTP header to contain custom data?
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Jquery change background color
...n() {
var p = $("p#44.test").css("background-color", "yellow");
p.hide(1500).show(1500);
p.queue(function() {
p.css("background-color", "red");
});
});
});
The .queue() function waits for running animations to run out and then fires whatever's in the supplied function.
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Calendar.getInstance(TimeZone.getTimeZone(“UTC”)) is not returning UTC time
... print the Date in the desired timezone.
EDIT: Courtesy of @Laurynas, consider this:
TimeZone timeZone = TimeZone.getTimeZone("UTC");
Calendar calendar = Calendar.getInstance(timeZone);
SimpleDateFormat simpleDateFormat =
new SimpleDateFormat("EE MMM dd HH:mm:ss zzz yyyy", Locale.US);
simp...
Best practices for in-app database migration for Sqlite
...database version, I use the built in user-version variable that sqlite provides (sqlite does nothing with this variable, you are free to use it however you please). It starts at 0, and you can get/set this variable with the following sqlite statements:
> PRAGMA user_version;
> PRAGMA user_...
how to check redis instance version?
... is that sometimes you don't have access to the server (e.g. when it's provided to you on the cloud), in which case INFO is your only option.
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Shiro vs. SpringSecurity [closed]
...ing app, you'll have a well-rounded security experience.
For example, consider the Spring XML config example in another post in this thread. Here's how you'd do (essentially) the same thing in Shiro:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/sche...
How to send a JSON object using html form data
...;
You can use it later in ajax. Or if you are not using ajax; put it in hidden textarea and pass to server. If this data is passed as json string via normal form data then you have to decode it using json_decode. You'll then get all data in an array.
$.ajax({
type: "POST",
url: "serverUrl",
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Android ListView Divider
...ou should use 1px instead of 1dp or 1dip: if you specify 1dp or 1dip, Android will scale that down. On a 120dpi device, that becomes something like 0.75px translated, which rounds to 0. On some devices, that translates to 2-3 pixels, and it usually looks ugly or sloppy
For dividers, 1px is the corr...