bhlvoong / lbtacomponents Goto Github PK

The Code needs some updating:

- 'NSAttributedStringKey' has been renamed to 'NSAttributedString.Key'
- 'NSLayoutFormatOptions' has been renamed to 'NSLayoutConstraint.FormatOptions'
- 'init(activityIndicatorStyle:)' has been renamed to 'init(style:)'
- 'UICollectionElementKindSectionHeader' has been renamed to 'UICollectionView.elementKindSectionHeader'

The issues are easy to fix, even by the user. But it would be more convenient if these issues didn't have to be fixed by the user in the first place.

This makes it unflexible...
For example I could not use it in a UIViewController.

Perhaps think about a way not extending a Controller.

Any future plans on implementing some delegate for DatasourceController and removing "controller" property from DatasourceCell?

Thanks for the pod btw!

Hello sir,
I set up a DataSourceController, HomeDataSource and DatasourceCell.

class CategoryCell: DatasourceCell {
    
    override var datasourceItem: Any? {
        didSet {
            print(datasourceItem as! IVNCategory)
            self.configure(dataSourceItem: datasourceItem)
        }
    }
    
    let wordlabel = UILabel()
    
    let dividerLineView: UIView = {
        let view = UIView()
        view.backgroundColor = UIColor(white: 0, alpha: 0.5)
        return view
    }()
    
    override func setupViews() {
        super.setupViews()
        
        addSubview(wordlabel)
        addSubview(dividerLineView)
        
        wordlabel.anchor(topAnchor, left: leftAnchor, bottom: bottomAnchor, right: rightAnchor, topConstant: 0, leftConstant: 8, bottomConstant: 0, rightConstant: 8, widthConstant: 0, heightConstant: 0)
        
        dividerLineView.anchor(nil, left: leftAnchor, bottom: bottomAnchor, right: rightAnchor, topConstant: 0, leftConstant: 8, bottomConstant: 0, rightConstant: 0, widthConstant: 0, heightConstant: 0.5)
    }
    func configure(dataSourceItem: Any?) {
        
        if let category = dataSourceItem as? IVNCategory {
            print(category)
            if let name = Reachability.stringFromDictionary(data: category.name) {
                self.wordlabel.text = name
            }
        }
    }

}

class HomeDataSource: Datasource {
   
    override init() {
        super.init()
    }
    func fetchData(helper: IVNBaseDataHelper) {
        if let categories = helper.findAll() as? [IVNCategory] {
            objects = categories
        }
    }
    override func cellClass(_ indexPath: IndexPath) -> DatasourceCell.Type? {
        return CategoryCell.self
    }
    override func cellClasses() -> [DatasourceCell.Type] {
        return [CategoryCell.self]
    }
}

And in DataSourceController and have to fetch data from Core Data :

     let homeDataSource = HomeDataSource()
        if let helper = initDataHelper() {
            homeDataSource.fetchData(helper: helper)
            self.datasource = homeDataSource
        }

So my problem is: When I cast data from IVNCategory to Any and get back to dataSourceCell, in first load collection view ( do not scroll ) it's ok but it's return null entity when scrolled.

<inVietNam.IVNCategory: 0x600000282940> (entity: ; id: 0xd000000000400000 x-coredata://04A839A5-B2D4-4357-A1A0-A919E1C71EE4/IVNCategory/p16 ; data: )

I think problem in Reusable Cells. I tested my data, it just got error when I scroll to the first new line.
Thank you very much,

Would it be possible to make it work on iOS 8.0 and above?

I'm using LBTA components in my application, but i'm hitting a wall while trying to add a UIView to the screen with a background.
let greenView: UIView = { let v = UIView() v.backgroundColor = UIColor.rgb(red: 183, green: 202, blue: 45) v.layer.borderWidth = 1 return v }()
or
let greenView: UIView = { let v = UIView(frame: CGRect.zero) v.translatesAutoresizingMaskIntoConstraints = false v.backgroundColor = UIColor.rgb(red: 183, green: 202, blue: 45) v.layer.borderWidth = 1 return v }()

I'm adding it tho the main view and applying the constrains as recommended:
view.addSubview(greenView) greenView.anchor(top: joined.bottomAnchor, left: view.leftAnchor, bottom: nil, right: view.rightAnchor, paddingTop: 20, paddingLeft: 0, paddingBottom: 0, paddingRight: 0, width: view.frame.width - 20, height: 200)

As far as I notice this should work fine, but somehow does not appear on screen.
When debugging it I can see the view in the debugger but with a warning saying "ambiguous height".
Didn't I just defined the height on the constrains?
Am I doing something wrong here or is this some type of bug?

so i have successfully loaded data from rest api into collection view but i want to add new data from server into existing arrayData after scrolling to bottom which means the collectionview number of items should get bigger... However i can not manage this

Here's the error.

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'NSLayoutConstraint for <NSLayoutXAxisAnchor:0x604000a7e5c0 "UIImageView:0x7fccbb65e150.left">: A constraint cannot be made between <NSLayoutXAxisAnchor:0x604000a7e5c0 "UIImageView:0x7fccbb65e150.left"> and <NSLayoutXAxisAnchor:0x600000a78900 "UIView:0x7fccbb469700.leading"> because their units are not compatible.'

Hi, been using your VFL functions a lot and they are very helpful. Having to adapt most of my apps to the iPhone X, I realized that your functions do not take the newly introduced Safe Area into account. Any plans on updating?

The coolest thing about LBTAcomponents is that you don't have to dequeue cells. However, using this method does not allow me to set the delegate while dequeing the cells.

Usually I do something like this:

let cell = tableView.dequeueReusableCellWithIdentifier(settingIndexPath.cellName, forIndexPath: indexPath) as! HAIConfigurationTableViewCell
            let cellInput   = cell.viewWithTag(1) as! UITextField
            
            cellInput.delegate = self

Any advice ?

how to assign optional constraints like height as greaterthan or equal some constant
height anchor >= 40 like this

I updated the pod and example to Swift 4.2 and wanted to push my changes into a new branch and then create a pull request but you don't allow that. Have you considered open sourcing this pod. I had to fork and create a PR but that can be annoying

Thank you

from my method

func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath)

I can print the object like so

let object =  self.datasource?.objects?[indexPath.item]
print(object)

but if I want to access a property from my object, I can't. For instance,

print(object.imageUrl)

does not work.

How to go about this?

I've used the demo project to play with the library and the class I am trying to access is very similar to the Intermediate Example

struct MenuItem {
    let name: String
    let imageUrl: String
    let destination: String
```
    
```
    init(name: String, imageUrl: String, destination: String = "none"){
        self.name = name
        self.imageUrl = imageUrl
        self.destination = destination.uppercased()
    }
}`
```

Hello, Brian!
I finally decided to install your LBTAComponents and immediately found one issue: almost 400mb. And 95% of it is examples. So a little piece of advice: maybe two pods?

Hi! I love this library, will it be updated for Swift 5? Can we, its users, help in any way? Thank you.

I Can't reload DataSourceCell with new data. I can load data API call In ViewDidLoad in HomeDataSourceController. But When i tap a button then api call will fetch and result is same with minor value changes. i set the datasource in if Api call success.

self.datasource = usersDatasource
collectionView?.reloadData()

But cell not reload.

Hi Brian,

Letting you know here too (in case you miss the YouTube comment) that I have finished up a video series on LBTAComponents here: https://www.youtube.com/playlist?list=PL_csAAO9PQ8Ysk7OqJDkyuo65xMCkmCbV
Let me know what you think. Thanks, Alex.

Hi
I want to add LBTAComponents in my project but get below error

[!] Unable to satisfy the following requirements:

• LBTAComponents required by Podfile

Specs satisfying the LBTAComponents dependency were found, but they required a higher minimum deployment target.

please help.

Hello Brian, how can I use this pod for storyboard ? I'm trying but I'm getting this fatal error ;

fatal error: init(coder:) has not been implemented: file /Users/***/Desktop/TwitterLBTA/Pods/LBTAComponents/LBTAComponents/Classes/DatasourceController.swift, line 54

so how can i make it work with two api request...i have one for section 0 (fetcUserData where i got json response) and second for section 1 (fetchUserFeed) but olny one of them is showing depending which is called first in controller

Hello Brian, first of all thank you for your good job on LBTAComponents. I am using it in my project and it makes the development so much easier ! 👍

In NSMutableAttribtutedString+Helper.swift I got the following error :

Type 'NSAttributedStringKey' (aka 'NSString') has no member 'paragraphStyle'

I am using Swift3 and upgraded xcode 8.2 to 9.

Finally I upgraded to swift 4 and replaced NSAttributedStringKey.paragraphStyle with .paragraphStyle.

I close the issue

Hi!

I'm following Brian Tutorial for Twitter App now (2018). I try to use LBTAComponents version on that video. I follow all step and got me error on No Such Module LBTAComponents. I already open .xcworkspace. Then I try to use up-to-date version of it, but still the error coming up.

Is there any solution for this? Thanks

I am trying to add a UITextView into a LBTAFormController, using the following

class MakePostViewController: LBTAFormController {

    ...
    var descField = UITextView()

    override func viewDidLoad() {
        super.viewDidLoad()

        // Setting up view layout
        formContainerStackView.axis = .vertical
        formContainerStackView.spacing = 25
        formContainerStackView.layoutMargins = .init(top: 25, left: 25, bottom: 0, right: 25)
        ...
        // Description field
        descField = UITextView(text: "Add a description", font: UIFont.systemFont(ofSize: 16), textColor: #colorLiteral(red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0), textAlignment: .natural)
        descField.backgroundColor = #colorLiteral(red: 0.7450980544, green: 0.1568627506, blue: 0.07450980693, alpha: 1)
        formContainerStackView.addArrangedSubview(descField)
        ...

    }
   

However, when I run this code, the UITextView is the only object that doesn't render. All the UIButtons and UITextFields seem to render fine though. Not sure if this is a limitation with the library or if I am doing something wrong here...

I had a problem with installation of the pod. The cocoapods could not find the repository. The issue solved when I hit the command in the terminal 'pod update'.

Hi

I would like to reload my data in DatasourceController when the user clicks on the refresh button.

My Datasource shows changing in debug but no effect on collection layout views or Cells

thanks

Hey Brian thanks for this github repo.
I am facing some issue related to constraints.
here is my code.

import UIKit

class HomeViewController: UIViewController {

override func viewDidLoad() {
    super.viewDidLoad()
    setupView()
}

let topContainer:UIView = {
    let container = UIView()
    container.backgroundColor = UIColor.red
    return container
}()

func setupView() {
    view.addSubview(topContainer)
    
    //this works fine
    view.addConstraintsWithFormat("H:|[v0]|", views: topContainer)
    view.addConstraintsWithFormat("V:|[v0(350)]", views: topContainer)
    
    //This below code not working
    topContainer.anchor(self.topAnchor, left: self.leftAnchor, bottom: nil, right: nil, topConstant: 16, leftConstant: 16, bottomConstant: 0, rightConstant: 0, widthConstant: 350, heightConstant: 350)

}
}

and I am using extension of UIView

extension UIView {
public func addConstraintsWithFormat(_ format: String, views: UIView...) {
    
    var viewsDictionary = [String: UIView]()
    for (index, view) in views.enumerated() {
        let key = "v\(index)"
        viewsDictionary[key] = view
        view.translatesAutoresizingMaskIntoConstraints = false
    }
    
    addConstraints(NSLayoutConstraint.constraints(withVisualFormat: format, options: NSLayoutFormatOptions(), metrics: nil, views: viewsDictionary))
}
 
public func anchor(_ top: NSLayoutYAxisAnchor? = nil, left: NSLayoutXAxisAnchor? = nil, bottom: NSLayoutYAxisAnchor? = nil, right: NSLayoutXAxisAnchor? = nil, topConstant: CGFloat = 0, leftConstant: CGFloat = 0, bottomConstant: CGFloat = 0, rightConstant: CGFloat = 0, widthConstant: CGFloat = 0, heightConstant: CGFloat = 0) {
    translatesAutoresizingMaskIntoConstraints = false
    
    _ = anchorWithReturnAnchors(top, left: left, bottom: bottom, right: right, topConstant: topConstant, leftConstant: leftConstant, bottomConstant: bottomConstant, rightConstant: rightConstant, widthConstant: widthConstant, heightConstant: heightConstant)
}

public func anchorWithReturnAnchors(_ top: NSLayoutYAxisAnchor? = nil, left: NSLayoutXAxisAnchor? = nil, bottom: NSLayoutYAxisAnchor? = nil, right: NSLayoutXAxisAnchor? = nil, topConstant: CGFloat = 0, leftConstant: CGFloat = 0, bottomConstant: CGFloat = 0, rightConstant: CGFloat = 0, widthConstant: CGFloat = 0, heightConstant: CGFloat = 0) -> [NSLayoutConstraint] {
    translatesAutoresizingMaskIntoConstraints = false
    
    var anchors = [NSLayoutConstraint]()
    
    if let top = top {
        anchors.append(topAnchor.constraint(equalTo: top, constant: topConstant))
    }
    
    if let left = left {
        anchors.append(leftAnchor.constraint(equalTo: left, constant: leftConstant))
    }
    
    if let bottom = bottom {
        anchors.append(bottomAnchor.constraint(equalTo: bottom, constant: -bottomConstant))
    }
    
    if let right = right {
        anchors.append(rightAnchor.constraint(equalTo: right, constant: -rightConstant))
    }
    
    if widthConstant > 0 {
        anchors.append(widthAnchor.constraint(equalToConstant: widthConstant))
    }
    
    if heightConstant > 0 {
        anchors.append(heightAnchor.constraint(equalToConstant: heightConstant))
    }
    
    anchors.forEach({$0.isActive = true})
    
    return anchors
}

}

Has anyone else tried to run the latest pod under Swift 4? I find some error messages when it runs - some can be fixed but do not know enough about the code to try and fix them all - any others observing this?

I want to use nib file for cells in LBTAComponents. What should I do to implement this?

I tried to write a method cellNibs ( the same with cellClasses ) to register nibs file :
I debugged it and it ran into register nib before dequeue a cell ( also checked identifier not wrong).
I got this errror :

'could not dequeue a view of kind: UICollectionElementKindCell with identifier inVietNam.HeadingHomeCell - must register a nib or a class for the identifier or connect a prototype cell in a storyboard'

open var datasource: Datasource? {
        didSet {
            if let cellClasses = datasource?.cellClasses() {
            
                for cellClass in cellClasses {
                    
                    collectionView?.register(cellClass, forCellWithReuseIdentifier: NSStringFromClass(cellClass))
                }
            }
            
            if let cells = datasource?.cellNibs() {
                
                for cell in cells {
                        collectionView?.register(cell.nib, forCellWithReuseIdentifier: cell.nibName)
                    
                }
            }
            
            if let headerClasses = datasource?.headerClasses() {
                for headerClass in headerClasses {
                    collectionView?.register(headerClass, forSupplementaryViewOfKind: UICollectionElementKindSectionHeader, withReuseIdentifier: NSStringFromClass(headerClass))
                }
            }
            
            if let footerClasses = datasource?.footerClasses() {
                for footerClass in footerClasses {
                    collectionView?.register(footerClass, forSupplementaryViewOfKind: UICollectionElementKindSectionFooter, withReuseIdentifier: NSStringFromClass(footerClass))
                }
            }
            
            collectionView?.reloadData()
        }
    }