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Method Resolution Order (MRO) in new-style classes?
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How do I get the SharedPreferences from a PreferenceActivity in Android?
I am using a PreferenceActivity to show some settings for my application. I am inflating the settings via a xml file so that my onCreate (and complete class methods) looks like this:
...
String literals: Where do they go?
...
A common technique is for string literals to be put in "read-only-data" section which gets mapped into the process space as read-only (which is why you can't change it).
It does vary by platform. For example, simpler chip architectures may not s...
Animate the transition between fragments
...ew android.animation framework (object animators) with FragmentTransaction.setCustomAnimations as well as FragmentTransaction.setTransition.
Here's an example on using setCustomAnimations from ApiDemos' FragmentHideShow.java:
ft.setCustomAnimations(android.R.animator.fade_in, android.R.animator.fa...
How to git-cherry-pick only changes to certain files?
If I want to merge into a Git branch the changes made only to some of the files changed in a particular commit which includes changes to multiple files, how can this be achieved?
...
“please check gdb is codesigned - see taskgated(8)” - How to get gdb installed with homebrew code si
...eate a Certificate…
Choose a name for the certificate (e.g., gdb-cert), set Identity Type to Self Signed Root, set Certificate Type to Code Signing and select the Let me override defaults. Click several times on Continue until you get to the Specify a Location For The Certificate screen, then set...
How exactly does a generator comprehension work?
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`new function()` with lower case “f” in JavaScript
...tance.get_inner = function () {
return inner;
};
instance.set_inner = function (s) {
inner = s;
};
return instance;
})();
The purpose of the new operator is to create new object instances, setting up the [[Prototype]] internal property, you can see how this is mad...
Python debugging tips [closed]
...
PDB
You can use the pdb module, insert pdb.set_trace() anywhere and it will function as a breakpoint.
>>> import pdb
>>> a="a string"
>>> pdb.set_trace()
--Return--
> <stdin>(1)<module>()->None
(Pdb) p a
'a string'
(Pdb)
...
Add padding on view programmatically
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view.setPadding(0,padding,0,0);
This will set the top padding to padding-pixels.
If you want to set it in dp instead, you can do a conversion:
float scale = getResources().getDisplayMetrics().density;
int dpAsPixels = (int) (s...