iOS Archives - Page 6 of 7

Get Reactions from Timeline Post via Facebook Graph API – Swift – iOS

February 7, 2021April 13, 2016 by Ashish Kakkad

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.

Let’s learn how to get reactions from the post

Install pods

# 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

# 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

Login with Facebook

I have already written a tutorial on Facebook Login.

Get Facebook Posts via Graph API

We can get the Facebook post via graph API : /me/posts for that we have to add user_posts permission with login.

func getFacebookUserPosts() {
    FBSDKGraphRequest(graphPath: "/me/posts", parameters: nil, httpMethod: "GET").start(completionHandler: { (connection, result, error) in
        if (error == nil){
            print(result)
        }
    })
}

func getFacebookUserPosts() {

FBSDKGraphRequest(graphPath: "/me/posts", parameters: nil, httpMethod: "GET").start(completionHandler: { (connection, result, error) in

if (error == nil){

print(result)

}

})

}

Get Reactions from one of the Post

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.

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)
        }
    })
}

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)

}

})

}

Response should be like

Type of reactions : NONE, LIKE, LOVE, WOW, HAHA, SAD, ANGRY

{
    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;
    };
}

{

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 🙂

Use of Operator Overloading with Swift

February 7, 2021April 5, 2016 by Ashish Kakkad

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”.

Let’s Overload ^ (XOR Operator) to make Power of the value

Function Prototype :
Declare function prototype with left hand side value and right and side value.

func ^(lhs: Int, rhs: Int) -> Int {
}

1 2	func ^(lhs: Int, rhs: Int) -> Int { }

Operations in the function :
To make the power of the value we have to apply following operations

func ^(lhs: Int, rhs: Int) -> Int {
    if(rhs == 0) {
        return 1
    }
    else {
        var result = lhs
        for _ in 1 ..< rhs  {
            result *= lhs
        }
        return result
    }
}

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 :

let a = 2^2 //4
let b = 2^4 //16
let c = 3^3 //27

let a = 2^2 //4

let b = 2^4 //16

let c = 3^3 //27

Happy Coding 🙂

Swift 2.2 Warnings and It's Solutions – Xcode 7.3

February 7, 2021March 30, 2016 by Ashish Kakkad

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.

List of warnings with it’s solution:

‘var’ parameters are deprecated and will be removed in Swift 3

Use of string literal for Objective-C selectors is deprecated; use ‘#selector’ instead

‘++’ is deprecated: it will be removed in Swift 3

C-style for statement is deprecated and will be removed in a future version of Swift

FILE is deprecated and will be removed in Swift 3, please use #file

More swift tutorials/articles are available here.
Happy Coding 🙂

Swift Resources #3

February 7, 2021March 29, 2016 by Ashish Kakkad

Swift Useful Resources:

Top 100 Best Blogs for iOS Developers
SwiftyStoreKit Lightweight In App Purchases Swift framework for iOS 8.0+ and OSX 9.0+.
Sensitive Fresh look at work with gestures in Swift.
NumberMorphView A label view for displaying numbers which can transition or animate using a technique called number tweening or number morphing.
SwiftImageProcessing This project demonstrates how to do pixel operations in swift.
Gifu High-performance animated GIF support for iOS in Swift.

Posted by @NatashaTheRobot in Issue No. 80
If I got time then I will try to post the Swift/Objective-C useful resources everyday.
Happy Coding 🙂

Swift Resources #2 – for Animation

February 7, 2021March 15, 2016 by Ashish Kakkad

Swift Useful Animation Resources:

Spring A library to simplify iOS animations in Swift.
Animo Bring life to CALayers with SpriteKit-like animation builders
Advance A powerful animation framework for iOS and OS X.
CKWaveCollectionViewTransition Cool wave like transition between two or more UICollectionView
EasyAnimation A Swift library to take the power of UIView.animateWithDuration(_:, animations:…) to a whole new level – layers, springs, chain-able animations and mixing view and layer animations together!
Cheetah Easy animation library on iOS with Swift2

If I got time then I will try to post the Swift/Objective-C useful resources everyday.
Happy Coding 🙂

Swift Resources #1

February 7, 2021March 14, 2016 by Ashish Kakkad

Swift Useful Resources:

FolioReaderKit FolioReaderKit is an ePub reader and parser framework for iOS written in Swift.
KZLinkedConsole Clickable links in your Xcode console, so you never wonder which class logged the message.
Chatto A lightweight framework to build chat applications, made in Swift.
PFColorHash Generate color based on the given string.
SwiftCharts Easy to use and highly customizable charts library for iOS.

If I got time then I will try to post the Swift/Objective-C useful resources everyday.
Happy Coding 🙂

How to create a wrapper for Alamofire and SwiftyJSON? Swift – iOS

February 7, 2021March 9, 2016 by Ashish Kakkad

This blogpost updated with Swift 3 – Xcode 8 – iOS 10 – Alamofire 4.0

I have posted a basic tutorial about Alamofire and SwiftyJSON How to use Alamofire and SwiftyJSON with Swift?
And some day before we have learned about Use of Blocks(Closures) or Completion Handlers with Function in Swift – iOS
Let’s combine both the topics to make a WRAPPER of Alamofire and SwiftyJSON.

Use of Blocks(Closures) or Completion Handlers with Function in Swift – iOS

February 7, 2021February 28, 2016 by Ashish Kakkad

Blocks in Objective-C

In Objective-C we are using the blocks(completion handlers) with functions as follows :

[code language=”obj-c”]
– (void)yourFunctionName:(NSString *)yourString withCompletionHandler:(void (^)(NSString *yourResult))block;
[/code]

Closures in Swift

Closures are self-contained blocks of functionality that can be passed around and used in your code. Closures in Swift are similar to blocks in C and Objective-C and to lambdas in other programming languages.

Syntax with Function

[code language=”obj-c”]
func yourFunctionName(parameter:Type, … , withCompletionHandler:(result:Type) -> Void)
[/code]
For more closure syntax : goshdarnclosuresyntax.com

Example

Function Definition:
[code language=”obj-c”]
func closureReturn(isTest:Bool, withCompletionHandler:(result:String) -> Void) {
if(isTest){
withCompletionHandler(result: "Yes")
}
else{
withCompletionHandler(result: "No")
}
}
[/code]
Calling Function:
[code language=”obj-c”]
closureReturn(true) { (result) -> Void in
print(result)
}
[/code]
Output should be respective to value true/false.

In next post I will write a tutorial on a wrapper class for Alamofire with use of SwiftyJSON by using closures.

Happy Coding 🙂

Parse – See You Again – News & Useful Migration Tool & Alternative Links

February 7, 2021February 23, 2016 by Ashish Kakkad

Parse

Parse is Mobile Backend as a Service (MBaaS)
They have written :

We have a difficult announcement to make. Beginning today we’re winding down the Parse service, and Parse will be fully retired after a year-long period ending on January 28, 2017. We’re proud that we’ve been able to help so many of you build great mobile apps, but we need to focus our resources elsewhere.

News

Migration Tools and Alternatives

Thank you Parse for your great service.
See you again 🙂
Anything should be happen you have to learn something new anytime 😉
Enjoy iOS enjoy life 🙂

Issue "This certificate has an invalid issuer" because of Apple Worldwide Developer Relations Intermediate Certificate Expiration

February 7, 2021February 15, 2016 by Ashish Kakkad

I am posting this article because many users are facing this issue like “This certificate has an invalid issuer”

As apple have written :

The Apple Worldwide Developer Relations Certification Intermediate Certificate expires soon and we’ve issued a renewed certificate that must be included when signing all new Apple Wallet Passes, push packages for Safari Push Notifications, and Safari Extensions starting February 14, 2016.

As I found an answer in post on the Stack Overflow : This certificate has an invalid issuer regrading Intermediate Certificate Expiration

Follow this steps :

Open KeyChain access, Delete “Apple world wide Developer relations certification authority” (Which expires on 14th Feb 2016) from both “Login” and “System” sections. If you can’t find it, use “Show Expired Certificates” in the View menu
Download AppleWWDRCA.cer and add it to Keychain access > certificates (which expires on 8th Feb 2023)
Everything should be back to normal and working now (Check the certificate is valid and it should be display in green)

Let’s learn how to get reactions from the post

Install pods

Login with Facebook

Get Facebook Posts via Graph API

Get Reactions from one of the Post

Response should be like

Let’s Overload ^ (XOR Operator) to make Power of the value

List of warnings with it’s solution:

‘var’ parameters are deprecated and will be removed in Swift 3

Use of string literal for Objective-C selectors is deprecated; use ‘#selector’ instead

‘++’ is deprecated: it will be removed in Swift 3

C-style for statement is deprecated and will be removed in a future version of Swift

__FILE__ is deprecated and will be removed in Swift 3, please use #file

Swift Useful Resources:

Swift Useful Animation Resources:

Swift Useful Resources:

Blocks in Objective-C

Closures in Swift

Syntax with Function

Example

News

Migration Tools and Alternatives

Follow this steps :

Related Articles:

FILE is deprecated and will be removed in Swift 3, please use #file