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Removing viewcontrollers from navigation stack
...e this code and enjoy:
NSMutableArray *navigationArray = [[NSMutableArray alloc] initWithArray: self.navigationController.viewControllers];
// [navigationArray removeAllObjects]; // This is just for remove all view controller from navigation stack.
[navigationArray removeObjectAtIndex: 2]; // ...
What do querySelectorAll and getElementsBy* methods return?
...Name (and similar functions like getElementsByTagName and querySelectorAll ) work the same as getElementById or do they return an array of elements?
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What is the difference between an interface and a class, and why I should use an interface when I ca
... Hey that looks like a very good ingredient for me to understand, I really appreciate it, thanks a lot :) :)
– Jasmine
Jun 6 '12 at 13:46
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Remove blank lines with grep
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Try the following:
grep -v -e '^$' foo.txt
The -e option allows regex patterns for matching.
The single quotes around ^$ makes it work for Cshell. Other shells will be happy with either single or double quotes.
UPDATE: This works for me for a file with blank lines or "all white ...
window.onload vs $(document).ready()
...e HTML document has been loaded, while the onload event occurs later, when all content (e.g. images) also has been loaded.
The onload event is a standard event in the DOM, while the ready event is specific to jQuery. The purpose of the ready event is that it should occur as early as possible after ...
How do you list the active minor modes in emacs?
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C-h m or M-x describe-mode shows all the active minor modes (and major mode) and a brief description of each.
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Why should I capitalize my SQL keywords? [duplicate]
Simple question. I personally find a string of lowercase characters to be more readable than a string of uppercase characters. Is some old/popular flavor of SQL case-sensitive or something?
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When should one use RxJava Observable and when simple Callback on Android?
...I decided to try out Square's Retrofit . I see that they support simple Callback
9 Answers
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Should I return a Collection or a Stream?
...am().collect(toList());
So the question is, which is more useful to your callers.
If your result might be infinite, there's only one choice: Stream.
If your result might be very large, you probably prefer Stream, since there may not be any value in materializing it all at once, and doing so could c...
How to: Define theme (style) item for custom widget
...;
array.recycle();
}
}
Now you have to apply Theme.Custom to all activities that use CustomImageButton (in AndroidManifest.xml):
<activity android:name=".MyActivity" android:theme="@style/Theme.Custom"/>
That's all. Now CustomImageButton tries to load default attribute values ...