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On logout, clear Activity history stack, preventing “back” button from opening logged-in-only Activi
...e to finish() that LoginActivity once the user has successfully logged in, then it's no longer on the base of the stack and the FLAG_ACTIVITY_CLEAR_TOP semantics do not apply ... you end up creating a new LoginActivity on top of the existing stack. Which is almost certainly NOT what you want (weird ...
What goes into your .gitignore if you're using CocoaPods?
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I would consider adding the Podfile.lock file, because then you record exactly what versions of libraries you used for a specific build, and can reproduce it exactly for other team members. Having to ask "what version of X are you using" can be very annoying. Here is a good disc...
How to revert a “git rm -r .”?
...ould do it. If you don't have any uncommitted changes that you care about, then
git reset --hard HEAD
should forcibly reset everything to your last commit. If you do have uncommitted changes, but the first command doesn't work, then save your uncommitted changes with git stash:
git stash
git res...
Make child visible outside an overflow:hidden parent
... Afaik it doesn't, as long as the parent does not have position:relative. Then the child is positioned relative to its first positioned (not static) ancestor element, taking it out of the regular (parent's) dom flow.
– Pim Schaaf
Jul 2 '13 at 13:47
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How to get a tab character?
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That's interesting, but if it is a unicode character, then html shouldn't be changing it (collapsing it) at all, should it?
– Abbey Graebner
Mar 12 '12 at 2:26
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Nested defaultdict of defaultdict
...There is a nifty trick for doing that:
tree = lambda: defaultdict(tree)
Then you can create your x with x = tree().
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Warning :-Presenting view controllers on detached view controllers is discouraged
...r presentViewController:viewController animated:YES completion:nil];
And then in your modal view controller, when everything is finished, you can just call :
[self dismissViewControllerAnimated:YES completion:nil];
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iPhone UIButton - image position
...cs that is full size, and use that as the background image for the button (then use titleEdgeInsets to move the title around).
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Image Segmentation using Mean Shift explained
...understand what is happening:
The color coding for your matrix is:
Then we take a reasonable Mean Shift:
MeanShiftFilter[a, 3, 3]
And we get:
Where all center elements are equal (to 97, BTW).
You may iterate several times with Mean Shift, trying to get a more homogeneous colorin...
Sorting arraylist in alphabetical order (case insensitive)
...f you take a look at hthe implementation of String.CASE_INSENSITIVE_ORDER, then you'll see that A1 is condired less than A10 just because the lenght is smaller. There is no "natural sort" support out of the box, you might want to take a look at stackoverflow.com/questions/1262239/…
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