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How do I know that the UICollectionView has been loaded completely?
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// In viewDidLoad
[self.collectionView addObserver:self forKeyPath:@"contentSize" options:NSKeyValueObservingOptionOld context:NULL];
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
// You will ge...
How to make a smooth image rotation in Android?
...t the linear interpolator in xml without success. The solution that worked for me was to create the animation as a RotateAnimation in code.
RotateAnimation rotate = new RotateAnimation(0, 180, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
rotate.setDuration(5000);
rotate.setI...
Isn't “package private” member access synonymous with the default (no-modifier) access?
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Its worth noting that the default access for interface member is not package-private.
– Peter Lawrey
Mar 24 '11 at 9:01
1
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How to center an iframe horizontally?
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So that's what the "i" stands for.
– Aayush
Jun 9 '13 at 16:53
11
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Completion block for popViewController
...is the option to provide a completion block. Is there a similar equivalent for popViewController ?
18 Answers
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Listview Scroll to the end of the list after updating the list
...an also use myListView.smoothScrollToPosition(myListAdapter.getCount()-1); for smooth scrolling
– AndroidGeek
May 13 '15 at 7:08
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show 2 mo...
Mongoose populate after save
...r field on a newly saved object ... the only way I can find is to re-query for the objects I already have which I would hate to do.
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Better way to check variable for null or empty string?
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// Function for basic field validation (present and neither empty nor only white space
function IsNullOrEmptyString($str){
return (!isset($str) || trim($str) === '');
}
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Windows can't find the file on subprocess.call()
...hen the command is a shell built-in, add a 'shell=True' to the call.
E.g. for dir you would type:
import subprocess
subprocess.call('dir', shell=True)
To quote from the documentation:
The only time you need to specify shell=True on Windows is when the command you wish to execute is built int...
Android: Coloring part of a string using TextView.setText()?
...f the text (or making it bold, italic, transparent, etc.)and not the rest. For example:
13 Answers
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