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Fast and Lean PDF Viewer for iPhone / iPad / iOS - tips and hints?
...n methods:
QLPreviewController *previewController = [[QLPreviewController alloc] init];
previewController.dataSource = self;
previewController.delegate = self;
previewController.currentPreviewItemIndex = indexPath.row;
[self presentModalViewController:previewController animated:YES];
[previewContro...
How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
...the original one on which client initially tried to connect. If any server allocates different server-ports after a socket is bound, then in my opinion the server is wasting its resource and it must be needing the client to connect again to the new port assigned.
A bit more for completeness:
Examp...
How to dismiss keyboard iOS programmatically when pressing return
...dLoad];
//Keyboard stuff
tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
tapRecognizer.cancelsTouchesInView = NO;
[self.view addGestureRecognizer:tapRecognizer];
}
Also, add this function in the .m file:
- (void)handleSingl...
How can I check whether an array is null / empty?
...won't be null.
e.g. int[] numbers = new int[3];
In this case, the space is allocated & each of the element has a default value of 0.
It will be null, when you don't new it up.
e.g.
int[] numbers = null; // changed as per @Joachim's suggestion.
if (numbers == null)
{
System.out.println("yes...
What's a reliable way to make an iOS app crash?
... popular one - unrecognised selector crash:
NSObject *object = [[NSObject alloc] init];
[object performSelector:@selector(asfd)];
Make sure you don't have -asdf method implemented in that class haha
Or index beyond bound exception:
NSArray * array = [NSArray array];
[array objectAtIndex:5];
A...
How to draw border around a UILabel?
...BorderLabel
It's quite simple:
GSBorderLabel *myLabel = [[GSBorderLabel alloc] initWithTextColor:aColor
andBorderColor:anotherColor
andBorderWidth:2];
...
How to show the loading indicator in the top status bar
...l;
dispatch_once(&pred, ^{
shared = [[RMActivityIndicator alloc] init];
});
return shared;
}
@end
Example:
[[RMActivityIndicator sharedManager]increaseActivity];
[NSURLConnection sendAsynchronousRequest:urlRequest queue:self.networkReceiveProcessQueue completionH...
UIRefreshControl on UICollectionView only works if the collection fills the height of the container
... a UIRefreshControl
UIRefreshControl *refreshControl = [[UIRefreshControl alloc] init];
refreshControl.tintColor = [UIColor grayColor];
[refreshControl addTarget:self action:@selector(refershControlAction) forControlEvents:UIControlEventValueChanged];
[self.collectionView addSubview:refreshControl]...
How to force garbage collector to run?
...seem more useful to have generations stay put unless enough stuff has been allocated in one to justify advancing it.
– supercat
Nov 23 '10 at 15:42
2
...
Setting an image for a UIButton in code
...rolEventTouchUpInside];
UIBarButtonItem *jobsButton =
[[UIBarButtonItem alloc] initWithCustomView:listButton];
self.navigationItem.leftBarButtonItem = jobsButton;
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