Something about Swift 3

Well, this is how I felt when I was listening ‘Happy’, em~ a masterpiece, don’t u think so~


JUST KIDDING, Keep on Swift

Declare a swift dictionary

var object = ["name":"Light","model":"az001"]

Initializer of struct

Pretty simple

init(fromAnyData:NSDictionary){
    //assign value here,or customize your properties
}

Compare to the old syntax from OC, it’s much easier to init a struct. Swift forced you to assign values for every property, except you declare it as a optional one.

Swift Dictionary vs. NSDictionary

Look at this:

let userCourseDictionary:NSDictionary = NSJSONSerialization.JSONObjectWithData(userCourseData, options: nil, error: nil) as NSDictionary

It seems like we are not using a rewritten new brand Class NSJSONSerialization, but just provided some swift Syntax to access old OC. If not so, we don’t need to Convert it to a NSDictionary. This is a awesome truth for tons of existing 3rd open source Objective-C libs, that means you can use them directly by several steps setting.

Cocoapods + Objective-C+Swift together!!

It amazed me! Can’t believe it was so easy to do!

• Setup any cocoapods lib, I take pop for example.

• Create a header file, import the libs like you did with OC before.

• Include this header file in Build settings –> Swift Compiler –> Objective-C Bridging Header
  

• Use the libs obey Swift syntax, compare these two pieces of code to see differences.

  let popAnimation:POPSpringAnimation = POPSpringAnimation(propertyNamed: kPOPLayerPositionY)
  popAnimation.toValue = 300
  actionLabel.layer.pop_addAnimation(popAnimation, forKey: "slideIn")

  POPSpringAnimation *popAnimation = [POPSpringAnimation animationWithPropertyNamed:kPOPLayerPositionY];
  popAnimation.toValue = @(300)
  [self.actionLabel.layer pop_addAnimation:strokeAnimation forKey:@"slideIn"];

Use assistant view to preview layout

Never knew there’s such nice way to preview layout. Thanks to Pasan!


Resize label after input long text

Shortcut:  command  =

Some basic subversion command

The leader is too busy to move code from svn to git, and after upgrade to Yosemite, my Versions app would crash after launch. So I need to do it with command.

#create a change list
 svn cl clTiger Views/WSViewController.h
#remove a file from a change list
 svn cl —remove Views/WSViewController.h
#commit a change list
 svn ci —changelist clTiger -m "Test ChangeList"
#update specific files 
 svn up filename1 filename2
#make a branch
 svn copy fromPath toPath -m "Creating a branch for version 1.0"
#revert a file
svn revert filename
#delete a file
svn del filename

Sometimes command lines are more powerful & beautiful.