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How do I URL encode a string
... yet, I have been using this category to url-encode a string:
@implementation NSString (NSString_Extended)
- (NSString *)urlencode {
NSMutableString *output = [NSMutableString string];
const unsigned char *source = (const unsigned char *)[self UTF8String];
int sourceLen = strlen((const...
How do I check OS with a preprocessor directive?
...IN64 64 bit only
Unix (Linux, *BSD, Mac OS X)
See this related question on some of the pitfalls of using this check.
unix
__unix
__unix__
Mac OS X
__APPLE__
__MACH__
Both are defined; checking for either should work.
Linux
__linux__
linux Obsolete (not POSIX compliant)
__linux Obsolete...
iOS: How does one animate to new autolayout constraint (height)
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After updating your constraint:
[UIView animateWithDuration:0.5 animations:^{[self.view layoutIfNeeded];}];
Replace self.view with a reference to the containing view.
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Reading a plain text file in Java
....)". My understanding is that the order will be arbitrary after this operation.
– Daniil Shevelev
Sep 14 '14 at 18:49
39
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How to resize a tableHeaderView of a UITableView?
...he key. The problem is, my subview changes size over a second as an animation. Now I'm trying to figure out how to animate the tableHeaderView with it.
– Andrew
Jan 18 '10 at 7:56
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iOS White to Transparent Gradient Layer is Gray
... pointing out that any other colour will work like this... using a combination of the two answers above....
Objective C
UIColor *colour = [UIColor redColor];
NSArray *colourArray = @[(id)[colour colorWithAlphaComponent:0.0f].CGColor,(id)colour.CGColor]
NSArray *locations = @[@0.2,@0.8];
CAGradien...
Easiest way to detect Internet connection on iOS?
I know this question will appear to be a dupe of many others, however, I don't feel the simple case is well explained here. Coming from an Android and BlackBerry background, making requests through HTTPUrlConnection instantly fail if there is no connection available. This seems like completely san...
What's the best way to develop a sideswipe menu like the one in Facebook's new iOS app?
...e-swipe menus are becoming a more common interface element as more information gets crammed into each iPhone app. Facebook has included it in their latest version and the new Gmail app appears to include it as well . I was wondering if anybody had thoughts on the most efficient way of developing ...
Copying files from one directory to another in Java
...irectory in the dir directory, which I have created right before the iteration.
In the code, I want to copy the review (which represents the ith text file or review) to trainingDir . How can I do this? There seems not to be such a function (or I couldn't find). Thank you.
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Remove file extension from a file name string
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The Path.GetFileNameWithoutExtension method gives you the filename you pass as an argument without the extension, as should be obvious from the name.
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