大约有 7,100 项符合查询结果（耗时：0.0164秒） [XML]
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 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...
Why shouldn't I use “Hungarian Notation”?
... but that would incur a huge overhead for dynamic languages (Python, Ruby, PHP or Javascript).
– too much php
Dec 29 '08 at 3:45
22
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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...
Most efficient way to increment a Map value in Java
... file and reading it in, then performing a frequency count of all the word tokens in the file. Since this took an average of only 3 seconds, I had it perform the frequency count (not the I/O) 10 times.
timed the loop of 10 iterations but not the I/O operation and recorded the total time taken (in cl...
How can you automatically remove trailing whitespace in vim
...eepp %s/\s\+$//e
call cursor(l, c)
endfun
autocmd FileType c,cpp,java,php,ruby,python autocmd BufWritePre <buffer> :call <SID>StripTrailingWhitespaces()
If you want to apply this on save to any file, leave out the second autocmd and use a wildcard *:
autocmd BufWritePre * :call &...
What's a reliable way to make an iOS app crash?
... popular one - unrecognised selector crash:
NSObject *object = [[NSObject alloc] init];
[object performSelector:@selector(asfd)];
Make sure you don't have -asdf method implemented in that class haha
Or index beyond bound exception:
NSArray * array = [NSArray array];
[array objectAtIndex:5];
A...
How do you diff a directory for only files of a specific type?
...le1 PATH1/ PATH2/
For example:
find PATH1/ -type f | grep --text -vP "php$|html$" | sed 's/.*\///' | sort -u > file1
diff PATH1/ PATH2/ -rq -X file1
share
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How to draw border around a UILabel?
...BorderLabel
It's quite simple:
GSBorderLabel *myLabel = [[GSBorderLabel alloc] initWithTextColor:aColor
andBorderColor:anotherColor
andBorderWidth:2];
...
MySQL check if a table exists without throwing an exception
...is the best way to check if a table exists in MySQL (preferably via PDO in PHP) without throwing an exception. I do not feel like parsing the results of "SHOW TABLES LIKE" et cetera. There must be some sort of boolean query?
...