TouchInstinct
/
XLPagerTabStrip
314
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge branch 'gcutrini-master'

This commit is contained in:
Martin Barreto 2016-03-22 17:43:27 -03:00
parent 54380c5f19 38e58c3bf6
commit ea31f3f7e7
2 changed files with 65 additions and 64 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

122
Sources/BaseButtonBarPagerTabStripViewController.swift
View File

@ -1,4 +1,4 @@
// TwitterPagerTabStripViewController.swift
// BaseButtonBarPagerTabStripViewController.swift
// XLPagerTabStrip ( https://github.com/xmartlabs/XLPagerTabStrip )
//
// Copyright (c) 2016 Xmartlabs ( http://xmartlabs.com )
@ -25,47 +25,48 @@
import Foundation
public class BaseButtonBarPagerTabStripViewController<ButtonBarCellType : UICollectionViewCell>: PagerTabStripViewController, PagerTabStripDataSource, PagerTabStripIsProgressiveDelegate, UICollectionViewDelegate, UICollectionViewDataSource {
public var settings = ButtonBarPagerTabStripSettings()
public var buttonBarItemSpec: ButtonBarItemSpec<ButtonBarCellType>!
public var changeCurrentIndex: ((oldCell: ButtonBarCellType?, newCell: ButtonBarCellType?, animated: Bool) -> Void)?
public var changeCurrentIndexProgressive: ((oldCell: ButtonBarCellType?, newCell: ButtonBarCellType?, progressPercentage: CGFloat, changeCurrentIndex: Bool, animated: Bool) -> Void)?
@IBOutlet public lazy var buttonBarView: ButtonBarView! = { [unowned self] in
var flowLayout = UICollectionViewFlowLayout()
flowLayout.scrollDirection = .Horizontal
let buttonBar = ButtonBarView(frame: CGRectMake(0, 0, self.view.frame.size.width, self.settings.style.buttonBarHeight ?? 44), collectionViewLayout: flowLayout)
flowLayout.sectionInset = UIEdgeInsetsMake(0, self.settings.style.buttonBarLeftContentInset ?? 35, 0, self.settings.style.buttonBarRightContentInset ?? 35)
let buttonBarHeight = self.settings.style.buttonBarHeight ?? 44
let buttonBar = ButtonBarView(frame: CGRectMake(0, 0, self.view.frame.size.width, buttonBarHeight), collectionViewLayout: flowLayout)
buttonBar.backgroundColor = .orangeColor()
buttonBar.selectedBar.backgroundColor = .blackColor()
buttonBar.autoresizingMask = .FlexibleWidth
var newContainerViewFrame = self.containerView.frame
newContainerViewFrame.origin.y = 44
newContainerViewFrame.size.height = self.containerView.frame.size.height - (44 - self.containerView.frame.origin.y)
newContainerViewFrame.origin.y = buttonBarHeight
newContainerViewFrame.size.height = self.containerView.frame.size.height - (buttonBarHeight - self.containerView.frame.origin.y)
self.containerView.frame = newContainerViewFrame
return buttonBar
}()
lazy private var cachedCellWidths: [CGFloat]? = { [unowned self] in
return self.calculateWidths()
}()
public override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: NSBundle?) {
super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
delegate = self
datasource = self
}
required public init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
delegate = self
datasource = self
}
public override func viewDidLoad() {
super.viewDidLoad()
if buttonBarView.superview == nil {
view.addSubview(buttonBarView)
}
@ -85,7 +86,7 @@ public class BaseButtonBarPagerTabStripViewController<ButtonBarCellType : UIColl
buttonBarView.showsHorizontalScrollIndicator = false
buttonBarView.backgroundColor = settings.style.buttonBarBackgroundColor ?? buttonBarView.backgroundColor
buttonBarView.selectedBar.backgroundColor = settings.style.selectedBarBackgroundColor ?? buttonBarView.selectedBar.backgroundColor
buttonBarView.selectedBarHeight = settings.style.selectedBarHeight ?? buttonBarView.selectedBarHeight
// register button bar item cell
switch buttonBarItemSpec! {
@ -96,23 +97,23 @@ public class BaseButtonBarPagerTabStripViewController<ButtonBarCellType : UIColl
}
//-
}
public override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
buttonBarView.layoutIfNeeded()
isViewAppearing = true
}
public override func viewDidAppear(animated: Bool) {
super.viewDidAppear(animated)
isViewAppearing = false
}
public override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
guard isViewAppearing || isViewRotating else { return }
// Force the UICollectionViewFlowLayout to get laid out again with the new size if
// a) The view is appearing. This ensures that
// collectionView:layout:sizeForItemAtIndexPath: is called for a second time
@ -130,15 +131,15 @@ public class BaseButtonBarPagerTabStripViewController<ButtonBarCellType : UIColl
// tab/cell may end up either skewed or off screen after a rotation otherwise)
buttonBarView.moveToIndex(currentIndex, animated: false, swipeDirection: .None, pagerScroll: .ScrollOnlyIfOutOfScreen)
}
// MARK: - View Rotation
public override func viewWillTransitionToSize(size: CGSize, withTransitionCoordinator coordinator: UIViewControllerTransitionCoordinator) {
super.viewWillTransitionToSize(size, withTransitionCoordinator: coordinator)
}
// MARK: - Public Methods
public override func reloadPagerTabStripView() {
super.reloadPagerTabStripView()
guard isViewLoaded() else { return }
@ -146,42 +147,42 @@ public class BaseButtonBarPagerTabStripViewController<ButtonBarCellType : UIColl
cachedCellWidths = calculateWidths()
buttonBarView.moveToIndex(currentIndex, animated: false, swipeDirection: .None, pagerScroll: .Yes)
}
public func calculateStretchedCellWidths(minimumCellWidths: [CGFloat], suggestedStretchedCellWidth: CGFloat, previousNumberOfLargeCells: Int) -> CGFloat {
var numberOfLargeCells = 0
var totalWidthOfLargeCells: CGFloat = 0
for minimumCellWidthValue in minimumCellWidths {
if minimumCellWidthValue > suggestedStretchedCellWidth {
totalWidthOfLargeCells += minimumCellWidthValue
numberOfLargeCells += 1
}
}
guard numberOfLargeCells > previousNumberOfLargeCells else { return suggestedStretchedCellWidth }
let flowLayout = buttonBarView.collectionViewLayout as! UICollectionViewFlowLayout
let collectionViewAvailiableWidth = buttonBarView.frame.size.width - flowLayout.sectionInset.left - flowLayout.sectionInset.right
let numberOfCells = minimumCellWidths.count
let cellSpacingTotal = CGFloat(numberOfCells - 1) * flowLayout.minimumLineSpacing
let numberOfSmallCells = numberOfCells - numberOfLargeCells
let newSuggestedStretchedCellWidth = (collectionViewAvailiableWidth - totalWidthOfLargeCells - cellSpacingTotal) / CGFloat(numberOfSmallCells)
return calculateStretchedCellWidths(minimumCellWidths, suggestedStretchedCellWidth: newSuggestedStretchedCellWidth, previousNumberOfLargeCells: numberOfLargeCells)
}
public func pagerTabStripViewController(pagerTabStripViewController: PagerTabStripViewController, updateIndicatorFromIndex fromIndex: Int, toIndex: Int) {
guard shouldUpdateButtonBarView else { return }
buttonBarView.moveToIndex(toIndex, animated: true, swipeDirection: toIndex < fromIndex ? .Right : .Left, pagerScroll: .Yes)
if let changeCurrentIndex = changeCurrentIndex {
let oldCell = buttonBarView.cellForItemAtIndexPath(NSIndexPath(forItem: currentIndex != fromIndex ? fromIndex : toIndex, inSection: 0)) as? ButtonBarCellType
let newCell = buttonBarView.cellForItemAtIndexPath(NSIndexPath(forItem: currentIndex, inSection: 0)) as? ButtonBarCellType
changeCurrentIndex(oldCell: oldCell, newCell: newCell, animated: true)
}
}
public func pagerTabStripViewController(pagerTabStripViewController: PagerTabStripViewController, updateIndicatorFromIndex fromIndex: Int, toIndex: Int, withProgressPercentage progressPercentage: CGFloat, indexWasChanged: Bool) {
guard shouldUpdateButtonBarView else { return }
buttonBarView.moveFromIndex(fromIndex, toIndex: toIndex, progressPercentage: progressPercentage, pagerScroll: .Yes)
@ -191,22 +192,22 @@ public class BaseButtonBarPagerTabStripViewController<ButtonBarCellType : UIColl
changeCurrentIndexProgressive(oldCell: oldCell, newCell: newCell, progressPercentage: progressPercentage, changeCurrentIndex: indexWasChanged, animated: true)
}
}
// MARK: - UICollectionViewDelegateFlowLayut
public func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize {
guard let cellWidthValue = cachedCellWidths?[indexPath.row] else {
fatalError("cachedCellWidths for \(indexPath.row) must not be nil")
}
return CGSizeMake(cellWidthValue, collectionView.frame.size.height)
}
public func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
guard indexPath.item != currentIndex else { return }
buttonBarView.moveToIndex(indexPath.item, animated: true, swipeDirection: .None, pagerScroll: .Yes)
shouldUpdateButtonBarView = false
let oldCell = buttonBarView.cellForItemAtIndexPath(NSIndexPath(forItem: currentIndex, inSection: 0)) as? ButtonBarCellType
let newCell = buttonBarView.cellForItemAtIndexPath(NSIndexPath(forItem: indexPath.item, inSection: 0)) as? ButtonBarCellType
if pagerBehaviour.isProgressiveIndicator {
@ -221,22 +222,22 @@ public class BaseButtonBarPagerTabStripViewController<ButtonBarCellType : UIColl
}
moveToViewControllerAtIndex(indexPath.item)
}
// MARK: - UICollectionViewDataSource
public func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return viewControllers.count
}
public func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
guard let cell = collectionView.dequeueReusableCellWithReuseIdentifier("Cell", forIndexPath: indexPath) as? ButtonBarCellType else {
fatalError("UICollectionViewCell should be or extend from ButtonBarViewCell")
}
let childController = viewControllers[indexPath.item] as! IndicatorInfoProvider
let indicatorInfo = childController.indicatorInfoForPagerTabStrip(self)
configureCell(cell, indicatorInfo: indicatorInfo)
if pagerBehaviour.isProgressiveIndicator {
if let changeCurrentIndexProgressive = changeCurrentIndexProgressive {
changeCurrentIndexProgressive(oldCell: currentIndex == indexPath.item ? nil : cell, newCell: currentIndex == indexPath.item ? cell : nil, progressPercentage: 1, changeCurrentIndex: true, animated: false)
@ -247,30 +248,30 @@ public class BaseButtonBarPagerTabStripViewController<ButtonBarCellType : UIColl
changeCurrentIndex(oldCell: currentIndex == indexPath.item ? nil : cell, newCell: currentIndex == indexPath.item ? cell : nil, animated: false)
}
}
return cell
}
// MARK: - UIScrollViewDelegate
public override func scrollViewDidEndScrollingAnimation(scrollView: UIScrollView) {
super.scrollViewDidEndScrollingAnimation(scrollView)
guard scrollView == containerView else { return }
shouldUpdateButtonBarView = true
}
public func configureCell(cell: ButtonBarCellType, indicatorInfo: IndicatorInfo){
fatalError("You must override this method to set up ButtonBarView cell accordingly")
}
private func calculateWidths() -> [CGFloat] {
let flowLayout = self.buttonBarView.collectionViewLayout as! UICollectionViewFlowLayout
let numberOfCells = self.viewControllers.count
var minimumCellWidths = [CGFloat]()
var collectionViewContentWidth: CGFloat = 0
for viewController in self.viewControllers {
let childController = viewController as! IndicatorInfoProvider
let indicatorInfo = childController.indicatorInfoForPagerTabStrip(self)
@ -285,12 +286,12 @@ public class BaseButtonBarPagerTabStripViewController<ButtonBarCellType : UIColl
collectionViewContentWidth += width
}
}
let cellSpacingTotal = CGFloat(numberOfCells - 1) * flowLayout.minimumLineSpacing
collectionViewContentWidth += cellSpacingTotal
let collectionViewAvailableVisibleWidth = self.buttonBarView.frame.size.width - flowLayout.sectionInset.left - flowLayout.sectionInset.right
if !settings.style.buttonBarItemsShouldFillAvailiableWidth || collectionViewAvailableVisibleWidth < collectionViewContentWidth {
return minimumCellWidths
}
@ -298,32 +299,32 @@ public class BaseButtonBarPagerTabStripViewController<ButtonBarCellType : UIColl
let stretchedCellWidthIfAllEqual = (collectionViewAvailableVisibleWidth - cellSpacingTotal) / CGFloat(numberOfCells)
let generalMinimumCellWidth = self.calculateStretchedCellWidths(minimumCellWidths, suggestedStretchedCellWidth: stretchedCellWidthIfAllEqual, previousNumberOfLargeCells: 0)
var stretchedCellWidths = [CGFloat]()
for minimumCellWidthValue in minimumCellWidths {
let cellWidth = (minimumCellWidthValue > generalMinimumCellWidth) ? minimumCellWidthValue : generalMinimumCellWidth
stretchedCellWidths.append(cellWidth)
}
return stretchedCellWidths
}
}
private var shouldUpdateButtonBarView = true
}
public class ExampleBaseButtonBarPagerTabStripViewController: BaseButtonBarPagerTabStripViewController<ButtonBarViewCell> {
public override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: NSBundle?) {
super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
initialize()
}
public required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
initialize()
}
public func initialize(){
buttonBarItemSpec = .NibFile(nibName: "ButtonCell", bundle: NSBundle(forClass: ButtonBarViewCell.self), width:{ [weak self] (childItemInfo) -> CGFloat in
let label = UILabel()
@ -334,7 +335,7 @@ public class ExampleBaseButtonBarPagerTabStripViewController: BaseButtonBarPager
return labelSize.width + CGFloat(self?.settings.style.buttonBarItemLeftRightMargin ?? 8 * 2)
})
}
public override func configureCell(cell: ButtonBarViewCell, indicatorInfo: IndicatorInfo){
cell.label.text = indicatorInfo.title
if let image = indicatorInfo.image {
@ -345,4 +346,3 @@ public class ExampleBaseButtonBarPagerTabStripViewController: BaseButtonBarPager
}
}
}

7
Sources/ButtonBarPagerTabStripViewController.swift
View File

@ -83,13 +83,14 @@ public class ButtonBarPagerTabStripViewController: PagerTabStripViewController,
@IBOutlet public lazy var buttonBarView: ButtonBarView! = { [unowned self] in
var flowLayout = UICollectionViewFlowLayout()
flowLayout.scrollDirection = .Horizontal
let buttonBar = ButtonBarView(frame: CGRectMake(0, 0, self.view.frame.size.width, self.settings.style.buttonBarHeight ?? 44), collectionViewLayout: flowLayout)
let buttonBarHeight = self.settings.style.buttonBarHeight ?? 44
let buttonBar = ButtonBarView(frame: CGRectMake(0, 0, self.view.frame.size.width, buttonBarHeight), collectionViewLayout: flowLayout)
buttonBar.backgroundColor = .orangeColor()
buttonBar.selectedBar.backgroundColor = .blackColor()
buttonBar.autoresizingMask = .FlexibleWidth
var newContainerViewFrame = self.containerView.frame
newContainerViewFrame.origin.y = 44
newContainerViewFrame.size.height = self.containerView.frame.size.height - (44 - self.containerView.frame.origin.y)
newContainerViewFrame.origin.y = buttonBarHeight
newContainerViewFrame.size.height = self.containerView.frame.size.height - (buttonBarHeight - self.containerView.frame.origin.y)
self.containerView.frame = newContainerViewFrame
return buttonBar
}()