添加加载更多按钮

librx/ExploreTableViewController.swift

@@ -52,17 +52,13 @@ class ExploreTableViewController: UITableViewController {
     
     override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
         
-        let source = explores[indexPath.row] as ExploreSource
-
-        let cellIdentifier = "Cell"
-        let cell = self.tableView.dequeueReusableCellWithIdentifier(cellIdentifier, forIndexPath:indexPath) as! ExploreTableCell
-        
         if (indexPath.row == self.explores.count-1) {
             self.loadMoreData()
+            return cellForLoadMore(cellForRowAtIndexPath: indexPath)
+        }else{
+            return cellForRowsInSection(cellForRowAtIndexPath: indexPath)
         }
         
-        return cellForRowsInSection(source, cell: cell)
-        
     }
     
     override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
@@ -129,7 +125,34 @@ class ExploreTableViewController: UITableViewController {
         
     }
     
-    func cellForRowsInSection(source: ExploreSource, cell: ExploreTableCell) -> ExploreTableCell {
+    func cellForLoadMore(cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
+        
+        let cell = UITableViewCell.init(style: UITableViewCellStyle.Default, reuseIdentifier: "moretag")
+        
+        let label = UILabel.init(frame: CGRectMake(0, 10, self.view.frame.width, 20))
+        label.text = "加载更多"
+        label.backgroundColor = UIColor.clearColor()
+        label.textAlignment = .Center
+        label.font = label.font.fontWithSize(14.0)
+        label.tintColor = UIColor.blueColor()
+        
+        cell.contentView.addSubview(label)
+        
+        let activityView = UIActivityIndicatorView.init(frame: CGRectMake(0, 30 ,self.view.frame.width,30.0))
+        activityView.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.Gray
+        activityView.hidesWhenStopped = false
+        activityView.startAnimating()
+        
+        cell.contentView.addSubview(activityView)
+        return cell
+    }
+    
+    func cellForRowsInSection(cellForRowAtIndexPath indexPath: NSIndexPath) -> ExploreTableCell {
+        
+        let source = explores[indexPath.row] as ExploreSource
+        
+        let cellIdentifier = "Cell"
+        let cell = self.tableView.dequeueReusableCellWithIdentifier(cellIdentifier, forIndexPath:indexPath) as! ExploreTableCell
         
         let thumbnailUrl = NSURL(string: source.img)
         

librx/StorysTableViewController.swift

@@ -31,6 +31,7 @@ class StorysTableViewController: UITableViewController {
     
     override func viewDidLoad() {
         super.viewDidLoad()
+
         self.navigationController?.navigationBar.tintColor = UIColor.whiteColor()
         
         // mark: add refress control to tableview
@@ -48,15 +49,6 @@ class StorysTableViewController: UITableViewController {
         self.tableView.rowHeight = UITableViewAutomaticDimension
         self.tableView.backgroundColor = UIColor(white: 0.97, alpha: 1)
         
-        // footer
-        let footerView = UIView.init(frame: CGRectMake(0, 0, 320, 70))
-        let btn = UIButton.init(type: UIButtonType.RoundedRect)
-        btn.setTitle("加载更多", forState: .Normal)
-        btn.sizeToFit()
-        btn.titleLabel?.textAlignment = .Center
-        footerView.addSubview(btn)
-        //self.tableView.tableFooterView = footerView
-        
         // mark start refreshing
         self.refreshControl?.beginRefreshing()
         
@@ -80,56 +72,23 @@ class StorysTableViewController: UITableViewController {
     }
     
     override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
-        return posts.count
+        return posts.count + 1
     }
 
     override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
         
-        let post = posts[indexPath.row] as Post
-
-        let cellIdentifier = "Cell"
-        let cell = tableView.dequeueReusableCellWithIdentifier(cellIdentifier, forIndexPath:indexPath) as! CustomTableCell
+        if (indexPath.row == posts.count ){
         
-        cell.delegate = self
+            return createLoadMoreTableCell(cellForRowAtIndexPath: indexPath)
+            
+        } else {
+            
+            return createNormalTableCell(cellForRowAtIndexPath: indexPath)
         
-        cell.nameLabel.text = post.title
-        cell.nameLabel.lineBreakMode = NSLineBreakMode.ByWordWrapping
-        cell.nameLabel.numberOfLines = 2
-        
-        cell.summary.text = post.summary
-        cell.summary.lineBreakMode = NSLineBreakMode.ByWordWrapping
-        cell.summary.numberOfLines = 1
-        
-        cell.readNumLabel.text = String(post.viewedTimes)
-        cell.likeNumLabel.text = String(post.likeCount)
-        cell.timeDiffLabel.text = DateUtil.timeDiff(post.getFormatCreateDateTime())
-        
-        let avatarUrl = NSURL(string: post.firstSharer.avatar)
-        let thumbnailUrl = NSURL(string: post.thumbnail)
-        
-        if post.url.containsString("github") {
-            cell.thumbnilImageView.image = UIImage(named: "GitHub")
-        } else if post.url.containsString("zhihu"){
-            cell.thumbnilImageView.image = UIImage(named: "zhihu")
-        }else{
-            cell.thumbnilImageView.sd_setImageWithURL(thumbnailUrl, placeholderImage: UIImage(named: "default"))
         }
-        cell.thumbnilImageView.layer.cornerRadius = 6
-        cell.thumbnilImageView.clipsToBounds = true
-        cell.thumbnilImageView.layer.borderWidth = 1
-        cell.thumbnilImageView.layer.borderColor = UIColor.clearColor().CGColor
-        
-        cell.avatarImageView.sd_setImageWithURL(avatarUrl, placeholderImage: UIImage(named: "default"))
-        cell.avatarImageView.layer.cornerRadius = cell.avatarImageView.frame.size.width / 2
-        cell.avatarImageView.clipsToBounds = true
-        
-        cell.nameButton.tag = post.firstSharer.id
-       
-        cell.shareNameLabel.text = post.firstSharer.name
-
-        return cell
     
     }
+
     
     override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
         
@@ -195,7 +154,76 @@ class StorysTableViewController: UITableViewController {
         }
     }
     
+    func createLoadMoreTableCell(cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
+        
+        let cell = UITableViewCell.init(style: UITableViewCellStyle.Default, reuseIdentifier: "moretag")
+        
+        let label = UILabel.init(frame: CGRectMake(0, 10, self.view.frame.width, 20))
+        label.text = "加载更多"
+        label.backgroundColor = UIColor.clearColor()
+        label.textAlignment = .Center
+        label.font = label.font.fontWithSize(14.0)
+        label.tintColor = UIColor.blueColor()
+        
+        cell.contentView.addSubview(label)
+        
+        let activityView = UIActivityIndicatorView.init(frame: CGRectMake(0, 30 ,self.view.frame.width,30.0))
+        activityView.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.Gray
+        activityView.hidesWhenStopped = false
+        activityView.startAnimating()
+        
+        cell.contentView.addSubview(activityView)
+        return cell
+        
+    }
     
+    func createNormalTableCell(cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell{
+        
+        let post = posts[indexPath.row] as Post
+        
+        let cellIdentifier = "Cell"
+        let cell = tableView.dequeueReusableCellWithIdentifier(cellIdentifier, forIndexPath:indexPath) as! CustomTableCell
+        
+        cell.delegate = self
+        
+        cell.nameLabel.text = post.title
+        cell.nameLabel.lineBreakMode = NSLineBreakMode.ByWordWrapping
+        cell.nameLabel.numberOfLines = 2
+        
+        cell.summary.text = post.summary
+        cell.summary.lineBreakMode = NSLineBreakMode.ByWordWrapping
+        cell.summary.numberOfLines = 1
+        
+        cell.readNumLabel.text = String(post.viewedTimes)
+        cell.likeNumLabel.text = String(post.likeCount)
+        cell.timeDiffLabel.text = DateUtil.timeDiff(post.getFormatCreateDateTime())
+        
+        let avatarUrl = NSURL(string: post.firstSharer.avatar)
+        let thumbnailUrl = NSURL(string: post.thumbnail)
+        
+        if post.url.containsString("github") {
+            cell.thumbnilImageView.image = UIImage(named: "GitHub")
+        } else if post.url.containsString("zhihu"){
+            cell.thumbnilImageView.image = UIImage(named: "zhihu")
+        }else{
+            cell.thumbnilImageView.sd_setImageWithURL(thumbnailUrl, placeholderImage: UIImage(named: "default"))
+        }
+        cell.thumbnilImageView.layer.cornerRadius = 6
+        cell.thumbnilImageView.clipsToBounds = true
+        cell.thumbnilImageView.layer.borderWidth = 1
+        cell.thumbnilImageView.layer.borderColor = UIColor.clearColor().CGColor
+        
+        cell.avatarImageView.sd_setImageWithURL(avatarUrl, placeholderImage: UIImage(named: "default"))
+        cell.avatarImageView.layer.cornerRadius = cell.avatarImageView.frame.size.width / 2
+        cell.avatarImageView.clipsToBounds = true
+        
+        cell.nameButton.tag = post.firstSharer.id
+        
+        cell.shareNameLabel.text = post.firstSharer.name
+        
+        return cell
+        
+    }
     
     @IBAction func startSharePost() {