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ViewPager and fragments — what's the right way to store fragment's state?
...ragment will be placed. FragmentPagerAdapter.getItem(int position) is only called when a fragment for that position does not exist. After rotating, Android will notice that it already created/saved a fragment for this particular position and so it simply tries to reconnect with it with FragmentManag...
Use LINQ to get items in one List, that are not in another List
...ct. As it is though, Person seems an incomplete class as it has a property called "ID" which does not identify it - if it did identify it, then equals would be overridden so that equal ID meant equal Person. Once that bug in Person is fixed, this approach is then better (unless the bug is fixed by r...
Email validation using jQuery
...orm only has one field that needs to be validated. I use this function and call it whenever I need to validate an email form field.
function validateEmail($email) {
var emailReg = /^([\w-\.]+@([\w-]+\.)+[\w-]{2,4})?$/;
return emailReg.test( $email );
}
and now to use this
if( !validateEmai...
Controlling the screenshot in the iOS 7 multitasking switcher
...y reflect your app’s user interface when your app is relaunched, you can call ignoreSnapshotOnNextApplicationLaunch to prevent that snapshot image from being taken.
Having said that, it appears that the screen snapshot is still taken and I have therefore filed a bug report. But you should test f...
Android “Only the original thread that created a view hierarchy can touch its views.”
...ead that was trying to modify the UI, and the above code worked, but I had call runOnUiThread from the Activity object. I had to do something like myActivityObject.runOnUiThread(etc)
– Kirby
Feb 17 '12 at 21:27
...
API pagination best practices
... explicit limit or also use an until property.
The timestamp can be dynamically determined using the last data item in the list. This seems to be more or less how Facebook paginates in its Graph API (scroll down to the bottom to see the pagination links in the format I gave above).
One problem ma...
Error inflating class fragment
...ate with getActivity() inside your fragment before onActivityCreated() get called. In such case you receive a wrong activity reference and can't rely on that.
For instance the next pattern is wrong:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle sa...
jQuery - getting custom attribute from selected option
... option was selected when the page loaded, that will return no matches, so calling attr() on that will result in undefined. easy to test for and deal with of course.)
– Jon Kloske
Jul 3 '14 at 4:04
...
How do I pass multiple parameters in Objective-C?
...ou need to delimit each parameter name with a ":" at the very least. Technically the name is optional, but it is recommended for readability. So you could write:
- (NSMutableArray*)getBusStops:(NSString*)busStop :(NSSTimeInterval*)timeInterval;
or what you suggested:
- (NSMutableArray*)getBusSto...
Cast Int to enum in Java
... +1: You may want to cache MyEnum.values() as its expensive. i.e. if you call it hundreds of times.
– Peter Lawrey
May 4 '11 at 7:27
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