大约有 3,300 项符合查询结果（耗时：0.0296秒） [XML]
Positioning MKMapView to show multiple annotations at once
... region.center.latitude = (southWest.latitude + northEast.latitude) / 2.0;
region.center.longitude = (southWest.longitude + northEast.longitude) / 2.0;
region.span.latitudeDelta = meters / 111319.5;
region.span.longitudeDelta = 0.0;
_savedRegion = [_mapView regi...
How to prevent custom views from losing state across screen orientation changes
...erclass), not public. No reason to expose them...
– XåpplI'-I0llwlg'I -
Jan 11 '13 at 10:27
7
...
How to get the build/version number of your Android application?
...se BuildConfig.VERSION_** as suggested here.
– Timo Bähr
Jun 20 '16 at 12:23
|
show 14 more comments
...
What is a Portable Class Library?
... This is the best interview/video I've seen to date covering .NET Standard 2.0
UPDATE Sep 27 2016: .NET Standard 2.0 announcement post has more good info
UPDATE Jun 6 2016: This article explains well how the .NETStandard library mechanism supersedes much of PCL
UPDATE Jul 10 2013: Excellent state...
A python class that acts like dict
...dited Oct 19 '12 at 15:21
Kim Gräsman
6,98611 gold badge2424 silver badges4040 bronze badges
answered Oct 25 '10 at 13:39
...
Solving “Who owns the Zebra” programmatically?
...
Here's a solution in Python based on constraint-programming:
from constraint import AllDifferentConstraint, InSetConstraint, Problem
# variables
colors = "blue red green white yellow".split()
nationalities = "Norwegian German Dane Swede English".split()
pet...
Max return value if empty query
...n an empty sequence results in an error.
– Raimund Krämer
Jan 29 '19 at 12:24
add a comment
...
How to enable Bootstrap tooltip on disabled button?
... click on the link (should not be possible).
– Olle Härstedt
Jul 27 '16 at 10:33
...
How to migrate/convert from SVN to Mercurial (hg) on windows
...any thanks to bgever for pointing out in the comments that with TortoiseHg 2.0, enabling the convert extension is easier than ever. As he says
With TortoiseHG 2.0 this has been made
much simpler: Start the TortoiseHG
Workbench from the Start menu. Select
File --> Settings. Select Exten...
Create array of symbols
...original answer was written back in September '11, but, starting from Ruby 2.0, there is a shorter way to create an array of symbols! This literal:
%i[address city state postal country]
will do exactly what you want.
shar...