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Android View.getDrawingCache returns null, only null
...d. All attempts then, using view.getWidth(), view.getLayoutParams().width, etc., including view.getDrawingCache() and view.buildDrawingCache(), are useless.
So, you need first to set dimensions to the view, e.g.:
view.layout(0, 0, width, height);
(You have already set 'width' and 'height' as you ...
What's the difference between the atomic and nonatomic attributes?
... Given that any thread-safe code will be doing its own locking etc, when would you want to use atomic property accessors? I'm having trouble thinking of a good example.
– Daniel Dickison
May 24 '11 at 20:00
...
Good example of livelock?
... This time I have modified it to create deadlock, race condition, livelock etc.
So let's understand the problem statement first;
Cookie Maker Problem
There are some ingredient containers: ChocoPowederContainer, WheatPowderContainer. CookieMaker takes some amount of powder from ingredient containe...
ActiveModel::ForbiddenAttributesError when creating new user
...
ActiveAdmin.register Api::V1::Person do
permit_params :name, :address, :etc
end
These need to be set along with those in the controller:
def api_v1_person_params
params.require(:api_v1_person).permit(:name, :address, :etc)
end
Otherwise you will get the error:
ActiveModel::ForbiddenAttrib...
Managing constructors with many parameters in Java
... .setZzz(myZzz)
// ... etc.
.build();
See page 8 and following of this Josh Bloch presentation (PDF), or this review of Effective Java
...
Finding what methods a Python object has
... method, try:
help(object.method)
to see the pydocs, method signature, etc.
Ahh... REPL.
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Python: Why is functools.partial necessary?
...ly not all, because Guido and I assuredly are among those "familiar with" (etc) yet think of lambda as an eyesore anomaly in Python...
He was repentant of ever having accepted it into Python whereas planned to remove it from Python 3, as one of "Python's glitches".
I fully supported him in that. (I...
Accessing MP3 metadata with Python [closed]
...etAlbum()
print tag.getTitle()
Read an mp3 file (track length, bitrate, etc.) and access it's tag:
if eyeD3.isMp3File(f):
audioFile = eyeD3.Mp3AudioFile(f)
tag = audioFile.getTag()
Specific tag versions can be selected:
tag.link("/some/file.mp3", eyeD3.ID3_V2)
tag.link("/some/file...
What is the bit size of long on 64-bit Windows?
... you call the 16-bit type? And if you call the 16-bit type char for UTF-16 etc, what do you call the 8-bit type? So, using LP64 leaves you with 8-bit char, 16-bit short, 32-bit int, 64-bit long, with room for upwards expansion to 128-bit long long when (if?) that becomes relevant. After that, you've...
How to list all installed packages and their versions in Python?
...p._internal but I cant reach it under help(pip._internal), pip.__builtins_ etc. pip reference guide is also blank.
– MortenB
Sep 10 '18 at 9:48
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