How to Mask Views Inside UICollectionView Cell Without Cutting Off Shadows
My goal is to get the views that show up when the cell is tapped to be hidden under the bounds of the cell as it expands, and show up as the cell expands, without cutting off the shadow of the cell. The views that show up outside of the cell include the labels for the class (Calculus 3 and Econ 101), the notes field, and the gray line.
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
if weekTasks[indexPath.section].count == 0 {
let emptyCell = collectionView.dequeueReusableCell(withReuseIdentifier: "emptyCellID", for: indexPath) as! EmptyCell
return emptyCell
} else {
let assignmentCell = collectionView.dequeueReusableCell(withReuseIdentifier: "assignCellID", for: indexPath) as! AssignmentCell
assignmentCell.myAssignment = weekTasks[indexPath.section][indexPath.item]
assignmentCell.contentView.backgroundColor = UIColor.clear
assignmentCell.layer.shadowOffset = CGSize(width: 0 ,height: 1)
assignmentCell.layer.shadowRadius = 4
return assignmentCell
}
}
override func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
do {
let cell = collectionView.cellForItem(at: indexPath)
cell?.backgroundColor = UIColor.white
cell?.layer.cornerRadius = 12
let animation = CABasicAnimation(keyPath: "shadowOpacity")
animation.fromValue = 0
animation.toValue = 0.2
animation.duration = 0.3
cell?.layer.add(animation, forKey: animation.keyPath)
cell?.layer.shadowOpacity = 0.2
}
collectionView.performBatchUpdates(nil, completion: nil)
}
The following is inside my collection view cell class:
override var isSelected: Bool {
didSet{
if self.isSelected
{
self.addSubview(notesField)
notesField.frame = CGRect(x: 50, y: 38, width: screenWidth - 60, height: 30)
self.addSubview(seperator)
seperator.frame = CGRect(x: 24, y: 71, width: self.frame.width - 48, height: 0.5)
self.addSubview(classButton)
classButton.frame = CGRect(x: 10, y: 80, width: 60, height: 20)
}
}
}
swift uicollectionview uicollectionviewcell clipstobounds
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My goal is to get the views that show up when the cell is tapped to be hidden under the bounds of the cell as it expands, and show up as the cell expands, without cutting off the shadow of the cell. The views that show up outside of the cell include the labels for the class (Calculus 3 and Econ 101), the notes field, and the gray line.
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
if weekTasks[indexPath.section].count == 0 {
let emptyCell = collectionView.dequeueReusableCell(withReuseIdentifier: "emptyCellID", for: indexPath) as! EmptyCell
return emptyCell
} else {
let assignmentCell = collectionView.dequeueReusableCell(withReuseIdentifier: "assignCellID", for: indexPath) as! AssignmentCell
assignmentCell.myAssignment = weekTasks[indexPath.section][indexPath.item]
assignmentCell.contentView.backgroundColor = UIColor.clear
assignmentCell.layer.shadowOffset = CGSize(width: 0 ,height: 1)
assignmentCell.layer.shadowRadius = 4
return assignmentCell
}
}
override func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
do {
let cell = collectionView.cellForItem(at: indexPath)
cell?.backgroundColor = UIColor.white
cell?.layer.cornerRadius = 12
let animation = CABasicAnimation(keyPath: "shadowOpacity")
animation.fromValue = 0
animation.toValue = 0.2
animation.duration = 0.3
cell?.layer.add(animation, forKey: animation.keyPath)
cell?.layer.shadowOpacity = 0.2
}
collectionView.performBatchUpdates(nil, completion: nil)
}
The following is inside my collection view cell class:
override var isSelected: Bool {
didSet{
if self.isSelected
{
self.addSubview(notesField)
notesField.frame = CGRect(x: 50, y: 38, width: screenWidth - 60, height: 30)
self.addSubview(seperator)
seperator.frame = CGRect(x: 24, y: 71, width: self.frame.width - 48, height: 0.5)
self.addSubview(classButton)
classButton.frame = CGRect(x: 10, y: 80, width: 60, height: 20)
}
}
}
swift uicollectionview uicollectionviewcell clipstobounds
add a comment |
My goal is to get the views that show up when the cell is tapped to be hidden under the bounds of the cell as it expands, and show up as the cell expands, without cutting off the shadow of the cell. The views that show up outside of the cell include the labels for the class (Calculus 3 and Econ 101), the notes field, and the gray line.
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
if weekTasks[indexPath.section].count == 0 {
let emptyCell = collectionView.dequeueReusableCell(withReuseIdentifier: "emptyCellID", for: indexPath) as! EmptyCell
return emptyCell
} else {
let assignmentCell = collectionView.dequeueReusableCell(withReuseIdentifier: "assignCellID", for: indexPath) as! AssignmentCell
assignmentCell.myAssignment = weekTasks[indexPath.section][indexPath.item]
assignmentCell.contentView.backgroundColor = UIColor.clear
assignmentCell.layer.shadowOffset = CGSize(width: 0 ,height: 1)
assignmentCell.layer.shadowRadius = 4
return assignmentCell
}
}
override func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
do {
let cell = collectionView.cellForItem(at: indexPath)
cell?.backgroundColor = UIColor.white
cell?.layer.cornerRadius = 12
let animation = CABasicAnimation(keyPath: "shadowOpacity")
animation.fromValue = 0
animation.toValue = 0.2
animation.duration = 0.3
cell?.layer.add(animation, forKey: animation.keyPath)
cell?.layer.shadowOpacity = 0.2
}
collectionView.performBatchUpdates(nil, completion: nil)
}
The following is inside my collection view cell class:
override var isSelected: Bool {
didSet{
if self.isSelected
{
self.addSubview(notesField)
notesField.frame = CGRect(x: 50, y: 38, width: screenWidth - 60, height: 30)
self.addSubview(seperator)
seperator.frame = CGRect(x: 24, y: 71, width: self.frame.width - 48, height: 0.5)
self.addSubview(classButton)
classButton.frame = CGRect(x: 10, y: 80, width: 60, height: 20)
}
}
}
swift uicollectionview uicollectionviewcell clipstobounds
My goal is to get the views that show up when the cell is tapped to be hidden under the bounds of the cell as it expands, and show up as the cell expands, without cutting off the shadow of the cell. The views that show up outside of the cell include the labels for the class (Calculus 3 and Econ 101), the notes field, and the gray line.
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
if weekTasks[indexPath.section].count == 0 {
let emptyCell = collectionView.dequeueReusableCell(withReuseIdentifier: "emptyCellID", for: indexPath) as! EmptyCell
return emptyCell
} else {
let assignmentCell = collectionView.dequeueReusableCell(withReuseIdentifier: "assignCellID", for: indexPath) as! AssignmentCell
assignmentCell.myAssignment = weekTasks[indexPath.section][indexPath.item]
assignmentCell.contentView.backgroundColor = UIColor.clear
assignmentCell.layer.shadowOffset = CGSize(width: 0 ,height: 1)
assignmentCell.layer.shadowRadius = 4
return assignmentCell
}
}
override func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
do {
let cell = collectionView.cellForItem(at: indexPath)
cell?.backgroundColor = UIColor.white
cell?.layer.cornerRadius = 12
let animation = CABasicAnimation(keyPath: "shadowOpacity")
animation.fromValue = 0
animation.toValue = 0.2
animation.duration = 0.3
cell?.layer.add(animation, forKey: animation.keyPath)
cell?.layer.shadowOpacity = 0.2
}
collectionView.performBatchUpdates(nil, completion: nil)
}
The following is inside my collection view cell class:
override var isSelected: Bool {
didSet{
if self.isSelected
{
self.addSubview(notesField)
notesField.frame = CGRect(x: 50, y: 38, width: screenWidth - 60, height: 30)
self.addSubview(seperator)
seperator.frame = CGRect(x: 24, y: 71, width: self.frame.width - 48, height: 0.5)
self.addSubview(classButton)
classButton.frame = CGRect(x: 10, y: 80, width: 60, height: 20)
}
}
}
swift uicollectionview uicollectionviewcell clipstobounds
swift uicollectionview uicollectionviewcell clipstobounds
asked Nov 20 '18 at 4:34
Carter FoughtyCarter Foughty
135
135
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