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ArrowDirection

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This commit is contained in:
nixzhu
2015-07-23 15:32:13 +08:00
parent d2a58061b8
commit 3a546c8adc
2 changed files with 83 additions and 22 deletions
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Yep/ViewControllers/Conversation/ConversationViewController.swift
+21 -6
View File
@@ -2194,24 +2194,39 @@ extension ConversationViewController: UICollectionViewDataSource, UICollectionVi
menu.hide()
}
let menu = BubbleMenuView(items: [copyItem, deleteItem])
let textViewFrame = cell.convertRect(cell.textContentTextView.frame, toView: strongSelf.view)
let arrowDirection: BubbleMenuView.ArrowDirection = CGRectGetMidY(textViewFrame) < 64 + 80 ? .Up : .Down
let menu = BubbleMenuView(arrowDirection: arrowDirection, items: [copyItem, deleteItem])
menu.setTranslatesAutoresizingMaskIntoConstraints(false)
strongSelf.view.addSubview(menu)
let textViewFrame = cell.convertRect(cell.textContentTextView.frame, toView: strongSelf.view)
var centerYConstant = CGRectGetMidY(textViewFrame) - CGRectGetMidY(strongSelf.conversationCollectionView.frame)
centerYConstant -= CGRectGetHeight(textViewFrame) - menu.offsetY
var vConstant = CGRectGetMidY(textViewFrame) - CGRectGetMidY(strongSelf.conversationCollectionView.frame)
let menuCenterY = NSLayoutConstraint(item: menu, attribute: .CenterY, relatedBy: .Equal, toItem: strongSelf.view, attribute: .CenterY, multiplier: 1, constant: centerYConstant)
let menuV: NSLayoutConstraint
switch arrowDirection {
case .Up:
vConstant += ceil(CGRectGetHeight(textViewFrame) * 0.5) - menu.offsetV
menuV = NSLayoutConstraint(item: menu, attribute: .Top, relatedBy: .Equal, toItem: strongSelf.view, attribute: .CenterY, multiplier: 1, constant: vConstant)
case .Down:
vConstant -= ceil(CGRectGetHeight(textViewFrame) * 0.5) - menu.offsetV
menuV = NSLayoutConstraint(item: menu, attribute: .Bottom, relatedBy: .Equal, toItem: strongSelf.view, attribute: .CenterY, multiplier: 1, constant: vConstant)
}
let centerXConstant = CGRectGetMidX(textViewFrame) - CGRectGetMidX(strongSelf.conversationCollectionView.frame)
let menuCenterX = NSLayoutConstraint(item: menu, attribute: .CenterX, relatedBy: .Equal, toItem: strongSelf.view, attribute: .CenterX, multiplier: 1, constant: centerXConstant)
NSLayoutConstraint.activateConstraints([menuCenterY, menuCenterX])
NSLayoutConstraint.activateConstraints([menuV, menuCenterX])
}
}
Yep/Views/BubbleMenu/BubbleMenuView.swift
+62 -16
View File
@@ -10,17 +10,24 @@ import UIKit
class BubbleMenuView: UIView {
var items: [Item]
var buttons = [UIButton]()
enum ArrowDirection {
case Up
case Down
}
struct Item {
let title: String
let action: BubbleMenuView -> Void
}
init(items: [Item]) {
var arrowDirection: ArrowDirection
var items: [Item]
var buttons = [UIButton]()
init(arrowDirection: ArrowDirection, items: [Item]) {
self.arrowDirection = arrowDirection
self.items = items
super.init(frame: CGRectZero)
@@ -49,7 +56,7 @@ class BubbleMenuView: UIView {
let arrowHeight: CGFloat = 8
let buttonGap: CGFloat = 12
let offsetY: CGFloat = 8
let offsetV: CGFloat = 1
func makeUI() {
@@ -96,9 +103,23 @@ class BubbleMenuView: UIView {
if let firstButton = buttons.first {
let firstButtonTop = NSLayoutConstraint(item: firstButton, attribute: .Top, relatedBy: .Equal, toItem: self, attribute: .Top, multiplier: 1, constant: 0)
let firstButtonBottom = NSLayoutConstraint(item: firstButton, attribute: .Bottom, relatedBy: .Equal, toItem: self, attribute: .Bottom, multiplier: 1, constant: -arrowHeight)
NSLayoutConstraint.activateConstraints([firstButtonTop, firstButtonBottom])
switch arrowDirection {
case .Up:
let firstButtonTop = NSLayoutConstraint(item: firstButton, attribute: .Top, relatedBy: .Equal, toItem: self, attribute: .Top, multiplier: 1, constant: arrowHeight)
let firstButtonBottom = NSLayoutConstraint(item: firstButton, attribute: .Bottom, relatedBy: .Equal, toItem: self, attribute: .Bottom, multiplier: 1, constant: 0)
NSLayoutConstraint.activateConstraints([firstButtonTop, firstButtonBottom])
case .Down:
let firstButtonTop = NSLayoutConstraint(item: firstButton, attribute: .Top, relatedBy: .Equal, toItem: self, attribute: .Top, multiplier: 1, constant: 0)
let firstButtonBottom = NSLayoutConstraint(item: firstButton, attribute: .Bottom, relatedBy: .Equal, toItem: self, attribute: .Bottom, multiplier: 1, constant: -arrowHeight)
NSLayoutConstraint.activateConstraints([firstButtonTop, firstButtonBottom])
}
}
}
@@ -109,22 +130,47 @@ class BubbleMenuView: UIView {
// bubble
var roundedRect = rect
roundedRect.size.height -= arrowHeight
switch arrowDirection {
case .Up:
roundedRect.origin.y += arrowHeight
roundedRect.size.height -= arrowHeight
case .Down:
roundedRect.size.height -= arrowHeight
}
let bubblePath = UIBezierPath(roundedRect: roundedRect, cornerRadius: 5)
bubblePath.fill()
// arrow
let buttomX = CGRectGetMidX(rect)
let buttomY = CGRectGetMaxY(rect)
switch arrowDirection {
let arrowPath = UIBezierPath()
arrowPath.moveToPoint(CGPointMake(buttomX, buttomY))
arrowPath.addLineToPoint(CGPointMake(buttomX - (arrowHeight - 1), buttomY - arrowHeight))
arrowPath.addLineToPoint(CGPointMake(buttomX + (arrowHeight - 1), buttomY - arrowHeight))
arrowPath.closePath()
arrowPath.fill()
case .Up:
let topX = CGRectGetMidX(rect)
let topY = CGRectGetMinY(rect)
let arrowPath = UIBezierPath()
arrowPath.moveToPoint(CGPointMake(topX, topY))
arrowPath.addLineToPoint(CGPointMake(topX - (arrowHeight - 1), topY + arrowHeight))
arrowPath.addLineToPoint(CGPointMake(topX + (arrowHeight - 1), topY + arrowHeight))
arrowPath.closePath()
arrowPath.fill()
case .Down:
let buttomX = CGRectGetMidX(rect)
let buttomY = CGRectGetMaxY(rect)
let arrowPath = UIBezierPath()
arrowPath.moveToPoint(CGPointMake(buttomX, buttomY))
arrowPath.addLineToPoint(CGPointMake(buttomX - (arrowHeight - 1), buttomY - arrowHeight))
arrowPath.addLineToPoint(CGPointMake(buttomX + (arrowHeight - 1), buttomY - arrowHeight))
arrowPath.closePath()
arrowPath.fill()
}
// lines