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Get UIScrollView to scroll to the top
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Answer for Swift 2.0/3.0/4.0 and iOS 7+:
let desiredOffset = CGPoint(x: 0, y: -self.scrollView.contentInset.top)
self.scrollView.setContentOffset(desiredOffset, animated: true)
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Determining 32 vs 64 bit in C++
..., but was curious to know if people could think of cases where this might fail or if there is a better way to do this. Please note we are trying to do this in a cross-platform, multiple compiler environment.
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Regular expression to match DNS hostname or IP Address?
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Here: stackoverflow.com/questions/4645126/… - I explain that names that start with a digit are considered as valid as well. Also, only one dot is questionable issue. Would be great to have more feedback on that.
– BreakPhreak
Jan 10 '11 a...
阿里的线下野心 - 资讯 - 清泛网 - 专注C/C++及内核技术
...下主攻实体商业的O2O平台喵街日前宣布，将于7月4日升级2.0版本，该版本中推出了通用积分系统“元宝”，在为实体商业提供会员营销解决方案的同时，打通阿里体系的积分。阿里在做了两年铺垫后开始向线下更深处“伸手”。
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Jackson: how to prevent field serialization
...ter out fields conditionally (by default, not used for deserialization; in 2.0 will be available but you can use different view on serialization, deserialization)
@JsonIgnoreProperties on class may be useful
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Using Tint color on UIImageView
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In swift 2.0+, you can do:
let image = UIImage(named: "your_image_name")!.imageWithRenderingMode(.AlwaysTemplate)
yourImageView.image = image
yourImageView.tintColor = UIColor.blueColor()
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How to create a GUID/UUID using iOS
...oper documentation I found the CFUUID object is available on the iPhone OS 2.0 and later.
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Find the division remainder of a number
...er() function:
from math import remainder
print(remainder(26,7))
Output:
-2.0 # not 5
Note, as above, it's not the same as %.
Quoting the documentation:
math.remainder(x, y)
Return the IEEE 754-style remainder of x with
respect to y. For finite x and finite nonzero y, this is the
difference x - ...
How to round the corners of a button
... self.btnFoldButton.layer.cornerRadius = self.btnFoldButton.frame.height/2.0;
If button frame is an square it does not matter frame.height or frame.width. Otherwise use the largest of both ones.
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What is the best way to do a substring in a batch file?
... - expands %I to a file extension only
%~sI - expanded path contains short names only
%~aI - expands %I to file attributes of file
%~tI - expands %I to date/time of file
%~zI - expands %I to size of file
%~$PATH:I - searches the directories listed in the PATH
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