【发布时间】：2016-03-01 04:19:05
【问题描述】：
我有一个由两个自定义表格视图单元格组成的个人资料页面。第一个自定义单元格是用户的信息。第二个自定义单元格是用户的朋友。第一行是用户的信息，之后的所有单元格都是用户的朋友。我的代码在 Xcode 6 中工作，但在更新后停止工作。
问题：一个有 2 个朋友的用户，他们的个人资料页面应该有一个包含三个单元格的表格：1 个用户信息单元格，2 个朋友单元格。但是，第一个和第二个单元格没有显示。仅显示第三个单元格。
澄清：应该有三个单元格。单元格 1 未显示。单元格 2 未显示。但细胞 3 正在显示。单元格 1 是用户的信息。单元 2 是一位朋友。单元 3 是另一个朋友。
这是我的代码：
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return friendList.count + 1
}
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
if indexPath.row == 0{
return 182.0
}else{
return 95.0
}
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
if indexPath.row != 0{
let cell = tableView.dequeueReusableCellWithIdentifier("friendCell", forIndexPath: indexPath) as! ProfileFriendTableViewCell
let friend = friendList[indexPath.row - 1]
cell.nameLabel.text = friend[1]
cell.usernameLabel.text = friend[2]
cell.schoolLabel.text = friend[3]
cell.sendRequestButton.tag = indexPath.row
var profileImageExists = false
if profileImages != nil{
for profileImage in profileImages{
if profileImage.forUser == friend[2]{
profileImageExists = true
cell.friendImageProgress.hidden = true
cell.profilePic.image = UIImage(data: profileImage.image)
UIView.animateWithDuration(0.2, animations: {
cell.profilePic.alpha = 1
})
}
}
}else if loadingImages == true{
profileImageExists = true
cell.friendImageProgress.hidden = true
cell.profilePic.image = UIImage(named: "profileImagePlaceholder")
UIView.animateWithDuration(0.2, animations: {
cell.profilePic.alpha = 1
})
}
if profileImageExists == false{
if Reachability.isConnectedToNetwork() == true{
let query = PFUser.query()
query?.getObjectInBackgroundWithId(friend[0], block: { (object, error) -> Void in
if error == nil{
if let object = object as? PFUser{
let friendProfilePicture = object.objectForKey("profileImage") as? PFFile
friendProfilePicture?.getDataInBackgroundWithBlock({ (data, error) -> Void in
if data != nil{
let image = UIImage(data: data!)
cell.profilePic.image = image
if let managedObjectContext = (UIApplication.sharedApplication().delegate as! AppDelegate).managedObjectContext {
let newProfileImage = NSEntityDescription.insertNewObjectForEntityForName("ProfileImageEntity", inManagedObjectContext: managedObjectContext) as! ProfileImage
newProfileImage.forUser = friend[2]
newProfileImage.image = UIImagePNGRepresentation(image!)
do{
try managedObjectContext.save()
}catch _{
print("insert error")
}
}
}else{
cell.friendImageProgress.hidden = true
cell.profilePic.image = UIImage(named: "profileImagePlaceholder")
}
}, progressBlock: { (progress: Int32) -> Void in
let percent = progress
let progressPercent = Float(percent) / 100
cell.friendImageProgress.progress = progressPercent
cell.friendImageProgress.hidden = true
})
}
}
})
}
else{
cell.friendImageProgress.hidden = true
cell.profilePic.image = UIImage(named: "profileImagePlaceholder")
}
}
return cell
}else{
let cell = tableView.dequeueReusableCellWithIdentifier("profileTopCell", forIndexPath: indexPath) as! ProfileTableViewCell
var profileImageExists = false
if profileImages != nil{
for profileImage in profileImages{
if profileImage.forUser == PFUser.currentUser()!.username!{
profileImageExists = true
cell.profilePic.image = UIImage(data: profileImage.image)
}
}
}else if loadingImages == true{
profileImageExists = true
cell.profilePic.image = UIImage(named: "profileImagePlaceholder")
}
if profileImageExists == false{
if Reachability.isConnectedToNetwork() == true{
let profilePicture = PFUser.currentUser()!.objectForKey("profileImage") as? PFFile
profilePicture?.getDataInBackgroundWithBlock({ (data, error) -> Void in
if data != nil{
let image = UIImage(data: data!)
cell.profilePic.image = image
if let managedObjectContext = (UIApplication.sharedApplication().delegate as! AppDelegate).managedObjectContext {
let newProfileImage = NSEntityDescription.insertNewObjectForEntityForName("ProfileImageEntity", inManagedObjectContext: managedObjectContext) as! ProfileImage
newProfileImage.forUser = PFUser.currentUser()!.username!
newProfileImage.image = UIImagePNGRepresentation(image!)
do{
try managedObjectContext.save()
}catch _{
print("insert error")
}
}
}else{
cell.profilePic.image = UIImage(named: "profileImagePlaceholder")
}
})
}else{
cell.profilePic.image = UIImage(named: "profileImagePlaceholder")
}
}
cell.nameLabel.text = PFUser.currentUser()!.objectForKey("Name") as? String
cell.usernameLabel.text = PFUser.currentUser()!.objectForKey("username") as? String
let friendNumber = PFUser.currentUser()!.objectForKey("numberOfFriends") as? Int
if friendNumber != 1{
cell.numberOfFriendsLabel.text = "\(friendNumber!) Friends"
}else{
cell.numberOfFriendsLabel.text = "1 Friend"
}
return cell
}
}
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标签： ios swift uitableview cell