Technology Makes A Wonderful World
Many of the types are bridged to the Swift type like as (e.g., NSString being bridged to String).
Other Objective-C types are bridged to Swift are as follows :
| Objective-C | Swift |
|---|---|
| NSString | String |
| NSArray | Array |
| NSDictionary | Dictionary |
| NSData | Data |
| NSError | Error (Added Swift 3 – Xcode 8 Beta 4) |
| NSNotificationCenter | NotificationCenter |
And more…
Bye Bye to NS from Swift!!
Happy Coding 🙂
New version of SDK is 4.16.x(Swift) and Graph API Version is 2.8.
With the Graph API 2.6 Facebook has given support to fetch (read only) the Reactions on Timeline Posts.
Post is updated for iOS 10 and Swift 3
API documentation is available here.
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# Uncomment the next line to define a global platform for your project platform :ios, '9.0' target 'FBSwiftLogin' do # Comment the next line if you're not using Swift and don't want to use dynamic frameworks use_frameworks! # Pods for FBSwiftLogin pod 'FacebookCore' pod 'FacebookLogin' end |
I have already written a tutorial on Facebook Login.
We can get the Facebook post via graph API : /me/posts for that we have to add user_posts permission with login.
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func getFacebookUserPosts() { FBSDKGraphRequest(graphPath: "/me/posts", parameters: nil, httpMethod: "GET").start(completionHandler: { (connection, result, error) in if (error == nil){ print(result) } }) } |
We can get the Facebook post reactions via graph API : /{post-id}/reactions. We have to pass parameters like fields and summary as described in getReactions function.
Note : Here I am writing sample for only first post.
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func getFacebookUserPosts() { var strGraphPath : String = "" FBSDKGraphRequest(graphPath: "/me/posts", parameters: nil, httpMethod: "GET").start(completionHandler: { (connection, result, error) in if (error == nil){ print(result) let data = (result as! [String : Any])["data"] as! [[String : Any]] if(data.count > 0) { let strId = data[0]["id"] as! String strGraphPath = "/"+strId+"/reactions" self.getReactions(strGraphPath) } } }) } func getReactions(_ strGraphPath:String) { FBSDKGraphRequest(graphPath: strGraphPath, parameters: ["fields":"id, name, type", "summary":"total_count, viewer_reaction"], httpMethod: "GET").start(completionHandler: { (connection, result, error) in if (error == nil){ print(result) } }) } |
Type of reactions : NONE, LIKE, LOVE, WOW, HAHA, SAD, ANGRY
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{ data = ( { id = ACCOUNT_ID; name = "NAME"; type = HAHA; }, { id = ACCOUNT_ID; name = "NAME"; type = LIKE; } ); paging = { cursors = { after = REFERENCE_ID; before = REFERENCE_ID; }; next = "NEXT_REFERENCE_LINK"; }; summary = { "total_count" = 56; "viewer_reaction" = NONE; }; } |
#Like #Share #React 🙂 😛 😀
Happy coding 🙂
I was just going through the Swift document and I found that Swift allow to overload the operator just like as C++ Language. Objective-C doesn’t allow to overload the operator.
As swift document we can also say “Operator Functions”.
Function Prototype :
Declare function prototype with left hand side value and right and side value.
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func ^(lhs: Int, rhs: Int) -> Int { } |
Operations in the function :
To make the power of the value we have to apply following operations
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func ^(lhs: Int, rhs: Int) -> Int { if(rhs == 0) { return 1 } else { var result = lhs for _ in 1 ..< rhs { result *= lhs } return result } } |
Let’s try to use with the operator :
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let a = 2^2 //4 let b = 2^4 //16 let c = 3^3 //27 |
Happy Coding 🙂
Xcode 7.3 came with Swift 2.2 Version. I just updated to Xcode 7.3 and found following warnings because of Swift version change.
Warning with:
[code language=”obj-c”]
func functionTest(var param:String) {
print(param)
}
[/code]
Solution:
[code language=”obj-c”]
func functionTest(param:String) {
print(param)
}
[/code]
If you want to update that variable inside the function then you have to create copy of that variable to do operations on that.
Warning with:
[code language=”obj-c”]
btn.addTarget(self, action: "functionName", forControlEvents: UIControlEvents.TouchUpInside)
[/code]
OR
[code language=”obj-c”]
btn.addTarget(self, action: Selector("functionName"), forControlEvents: UIControlEvents.TouchUpInside)
[/code]
Solution:
[code language=”obj-c”]
btn.addTarget(self, action: #selector(ViewController.functionName), forControlEvents: UIControlEvents.TouchUpInside)
[/code]
Apple Documentation : Added information about the #selector syntax for Objective-C selectors to the Selector Expression section.
Warning with:
[code language=”obj-c”]
var i = 0
for str in arrStr {
print(str)
i++
}
[/code]
Solution:
[code language=”obj-c”]
var i = 0
for str in arrStr {
print(str)
i += 1
}
[/code]
Apple Documentation : Removed discussion of C-style for loops, the ++ prefix and postfix operators, and the — prefix and postfix operators.
Warning with:
[code language=”obj-c”]
for var i=0; i<arrStr.count; i += 1 {
print(arrStr[i])
}
[/code]
Solution:
[code language=”obj-c”]
for i in 0 ..< arrStr.count {
print(arrStr[i])
}
[/code]
Warning with:
[code language=”obj-c”]
__FILE__
[/code]
Solution:
[code language=”obj-c”]
#file
[/code]
More swift tutorials/articles are available here.
Happy Coding 🙂
Apple’s ‘Let Us Loop You In’ On March 21, 2016 a special event by Apple.
for loopYou in letUS {
break
}