Is there any difference between :
Class<?> and Class<? extends Object> ?
Thanks
It is effectively the same
Nope. They are equivalent.
the same, 'cos every class extends Object.
it's analogous to saying
class MyClass
and
class MyClass extends Object
are the same thing.
I have a jQuery slider initialized and then dynamically set min max values depeding on the contents of a json-request. Steps av even 100, min a max are recalculated to even hundred, most of the case somewhere between 300 and 4800.
The slider values and settings are fine, but when I move the handle I can't get it all the way out to the ends, it stops a few steps from min/max values. Why is that?
I've tried all sorts of things, nothing works. I ended up adding 200 at the top value and subtracting 200 in the lower and to compensate, but that's is a hack and not a solution.
In your 'slide' callback, try using ui.value to get the value. This solved my problem. See http://stackoverflow.com/questions/621147/jquery-ui-slider-cant-slide-to-0 except don't go by the answer, go by the comment to the answer.
Are there any free Comet JavaScript libraries that allow multiple windows/tabs to reuse the same connection? In other words, when you open a second window, it detects that you have another window open under the same domain. Rather than open a new connection, it starts listening to the other window's connection. That way it can stay within the browser's per-domain connection limit.
Lightstreamer seems to handle this well, but I'd prefer something open-source.
I think the closest thing you're going to find in the Open Source world is going to be the functionality build into Dojo.
I'm sure in the future, you'll see more Open Source support for that kind of functionality...but for now you might have to hack something together.
You can't do that directly, because different browser windows/tabs don't know what connections are open in other browsers/tabs. The best you can do is either 1) wildcard a bunch of subdomains (the per-domain limit is per-subdomain too) or 2) use a cookie or some other form of persistent storage and fall back to short-polling, which is what the dojo framework does.
By default, Chrome makes my textareas resizable. I wish to control this and either make them only vertically resizable, or not at all.
How can I achieve this ?
Set max-width to make them only vertically resizable, or set max-height and max-width to stop all resizing.
However, be aware that breaking user expectations about how their browser treats controls tends to create a lot of user frustration.
you can set the column and rows like
<%= text_area :object, :attribute, :rows => '10', :cols => '100' %>
#=> <textarea cols="100" rows="10" id="object_attribute" name="object[attribute]">
# #{@object.attribute}
# </textarea>
or specify the size like
<%= text_area :object, :attribute, :size => "10x100" %>
#=> <textarea cols="10" rows="100" id="object_attribute" name="object[attribute]">
# #{@object.attribute}
# </textarea>
Rails generate standard textarea tag, but Safari/Chrome (Webkit) display all (not only Rails :) textareas as resizable.
It's apperance may be disabled by CSS
textarea {
resize: none;
}
Or, if need only vertical resize:
textarea {
resize: vertical;
}
How to automatically format PhpDoc comments in Netbeans?
I'd like to have comments aligned like this:
* @author Author Name <example@example.com>
* @package Doctrine
* @subpackage Table
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @version $Revision: 67999 $
* @link www.phpdoctrine.org
* @since 1.0
When I type /**[Enter] in Netbeans, it automatically imports all parameters as @param from the method definition. But then, when the comment is already generated I add a new variable to the definition. What now? How to trigger comment reparse and add newly added parameter?
Not possible in current version. I just use TAB to align the docs.
I have a text which looks like the following,
And I want to show it in a way such that the URL and the phone # are both in different color and bolded. Can I do it using just one UILabel control, or I need to parse them out and put them onto separate UILabel controls. (Note that the text itself could span multiple lines.) How can I do it?
You could use an NSAttributeString to decorate your string. There is a good explanation of how to use them here http://stackoverflow.com/questions/2090226/change-the-background-color-of-a-substring-of-a-drawn-nsstring/2090253#2090253
Sorry I forgot to mention that this is for iPhone (CoCoa Touch), where the NSAttributedString is not available.
You could try using a UIWebView, which detects both URLs and phone numbers.
Is there any way to set an animated image like the Apple spinning gear to an UIBarButtonItem?
I have tried this line of code but the animated gif image wont play:
myButton.image = [UIImage imageNamed:@"spinningGear.gif"];
Solution found here: How to use a custom UIBarButtonItem to display a UIActivityIndicatorView
Try creating a UIActivityIndicatorView and assigning it to your button with -[UIBarButtonItem initWithCustomView:].
I don't think that's possible with UIBarButtonItem.
You might want to use customView for that (the property or initWithCustomView) and use UIImageView as that view. That still won't animate gif's "out of the box" (just checked).
If you do so you have two options:
animatedImages from UIImageView class and use separate images for every frame (writing out of head - code might have some errors):
NSMutableArray * imgs = [NSMutableArray array];
for(int i = 0; i < NUMBER_OF_FRAMES; i++) {
[imgs addObject: [UIImage imageNamed: [NSString stingWithFormat: @"anim%d.png", i]]];
}
UIImageView * imgview = [[UIImageView alloc] init];
imgview.animatedImages = imgs;
[imgview startAnimating];
UIImageView out of gif images from this here http://blog.stijnspijker.nl/2009/07/animated-and-transparent-gifs-for-iphone-made-easy I found that this line was incorrect:
[[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(0, 0, 20, 20)];
...the actual size of the default Refresh button from Apple is a little different. If you have other items doing auto-layout on that toolbar, you need to get the size right.
Unfortunately, Apple provides no API for finding out the size. By trial and error, it seems this is correct:
[[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(0, 0, 28, 28)];