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Imitate Facebook hide/show expanding/contracting Navigation Bar
...wing property:
@property (nonatomic) CGFloat previousScrollViewYOffset;
And here are the UIScrollViewDelegate methods:
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
CGRect frame = self.navigationController.navigationBar.frame;
CGFloat size = frame.size.height - 21;
CGFloat...
Live-stream video from one android phone to another over WiFi
...nternet for days now on how to implement a video streaming feature from an android phone to another android phone over a WiFi connection but I can't seem to find anything useful. I looked on android developers for sample code, stackoverflow, google, android blogs but nothing. All I can find are some...
Detecting when the 'back' button is pressed on a navbar
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- (BOOL)isMovingFromParentViewController makes sense when you are pushing and popping controllers in a navigation stack.
However, if you are presenting modal view controllers you should use - (BOOL)isBeingDismissed instead:
- (void)viewWillDisappear:(BOOL)animated {
[super viewWillDisappear:ani...
Sibling package imports
I've tried reading through questions about sibling imports and even the
package documentation , but I've yet to find an answer.
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Is it possible to roll back CREATE TABLE and ALTER TABLE statements in major SQL databases?
... on a program that issues DDL. I would like to know whether CREATE TABLE and similar DDL can be rolled back in
5 Answers
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What is the in a .vimrc file?
I see <leader> in many .vimrc files, and I am wondering what does it mean?
5 Answers
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How do I execute a Git command without being in the repository?
Is there a way to execute Git commands against a repository without being in that repository?
6 Answers
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JavaScript arrays braces vs brackets
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The first and third are equivalent and create a new array. The second creates a new empty object, not an array.
var myArray = []; //create a new array
var myArray = {}; //creates **a new empty object**
var myArray = new Array(); //cre...
Set encoding and fileencoding to utf-8 in Vim
What is the difference between these two commands?
3 Answers
3
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PostgreSQL - Rename database
...think it's better to keep table names restricted to just lowercase letters and underscore if possible!
– Aswin Sanakan
Feb 17 at 6:52
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