// 生活详情

galaxy/galaxy/Classes/Modules/Home(首页)/Life(生活)/C/YHLifeDetailViewController.swift

@@ -129,7 +129,7 @@ class YHLifeDetailViewController: YHBaseViewController {
         imgView.image = UIImage(named: "global_default_image")
         return imgView
     }()
-    
+        
     lazy var segmentedView : JXSegmentedView = {
        let segmentedView = JXSegmentedView(frame: CGRect(x: 0, y: 0, width: KScreenWidth, height: 44))
         segmentedView.delegate = self
@@ -231,6 +231,13 @@ class YHLifeDetailViewController: YHBaseViewController {
             make.top.equalTo(self.topSegmentedView.snp.bottom)
         }
     }
+    
+    override func viewDidLayoutSubviews() {
+        super.viewDidLayoutSubviews()
+        if self.tableView.contentSize != self.fakeTableView.contentSize {
+            self.tableView.contentSize = self.fakeTableView.contentSize
+        }
+    }
 }
 
 extension YHLifeDetailViewController: JXSegmentedViewDelegate {
@@ -240,6 +247,7 @@ extension YHLifeDetailViewController: JXSegmentedViewDelegate {
         if segmentedView == self.topSegmentedView {
             self.segmentedView.defaultSelectedIndex = index
             self.segmentedView.reloadDataWithoutListContainer()
+            
         } else {
             self.topSegmentedView.defaultSelectedIndex = index
             self.topSegmentedView.reloadDataWithoutListContainer()
@@ -247,9 +255,9 @@ extension YHLifeDetailViewController: JXSegmentedViewDelegate {
         
         if 0 <= index, index < self.imgItems.count {
             self.fakeTableView.scrollToRow(at: IndexPath(row: index, section: 0), at: .top, animated: true)
-            let rect = self.fakeTableView.rectForRow(at: IndexPath(row: index, section: 0))
-            DispatchQueue.main.asyncAfter(deadline: .now()+0.2, execute: {
-                var y = rect.origin.y - k_Height_NavigationtBarAndStatuBar-45.0
+            DispatchQueue.main.asyncAfter(deadline: .now()+0.3, execute: {
+                let rect = self.fakeTableView.rectForRow(at: IndexPath(row: index, section: 0))
+                var y = rect.origin.y - k_Height_NavigationtBarAndStatuBar-45.0+2.0
                 if y > self.fakeTableView.contentSize.height-self.fakeTableView.height {
                     y = self.fakeTableView.contentSize.height-self.fakeTableView.height
                 }
@@ -273,31 +281,57 @@ extension YHLifeDetailViewController: UIScrollViewDelegate {
             topSegmentedView.isHidden = true
             topLine.isHidden = true
         }
-        var find = false
+    }
+    
+    func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
+        if scrollView == self.fakeTableView {
+            return
+        }
+        self.updateSelectIndex(scrollView)
+    }
+    
+    func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate decelerate: Bool) {
+        if scrollView == self.fakeTableView {
+            return
+        }
+        self.updateSelectIndex(scrollView)
+    }
+    
+    func updateSelectIndex(_ scrollView: UIScrollView) {
+        
+        var selectIndex = -1
         if self.imgItems.count > 0 {
             for index in 0..<self.imgItems.count {
                 let rect = self.tableView.rectForRow(at: IndexPath(row: index, section: 0))
-                // section 到顶部选择tab的距离
+                // row 到顶部选择tab的距离 row 在tab下方 距离为证， row 在tab上方 距离为负
                 let y = rect.origin.y-k_Height_NavigationtBarAndStatuBar-45.0-self.tableView.contentOffset.y
-                if 0.0 <= y, y < self.tableView.height-k_Height_NavigationtBarAndStatuBar-45.0  {
-                    find = true
-                    self.topSegmentedView.defaultSelectedIndex = index
-                    self.topSegmentedView.reloadDataWithoutListContainer()
-                    self.segmentedView.defaultSelectedIndex = index
-                    self.segmentedView.reloadDataWithoutListContainer()
+                
+                if y > -rect.size.height  {
+                    selectIndex = index
                     break
                 }
             }
         }
         // section 没有在可见区域出现
-        if !find {
+        if selectIndex < 0 {
             if let arr = self.tableView.indexPathsForVisibleRows, let lastIndexPath = arr.last {
-                self.topSegmentedView.defaultSelectedIndex = lastIndexPath.row
-                self.topSegmentedView.reloadDataWithoutListContainer()
-                self.segmentedView.defaultSelectedIndex = lastIndexPath.row
-                self.segmentedView.reloadDataWithoutListContainer()
+                selectIndex = lastIndexPath.row
+            }
+        } else {
+            if self.imgItems.count >= 2 {
+                let gap = self.tableView.contentSize.height-self.tableView.contentOffset.y
+                if selectIndex == self.imgItems.count-2, self.tableView.height-1.0 <= gap, gap <= self.tableView.height+1.0 {
+                    // 滑动到底部需要定位到最后一个index
+                    selectIndex = self.imgItems.count-1
+                }
             }
         }
+        
+        self.topSegmentedView.defaultSelectedIndex = selectIndex
+        self.topSegmentedView.reloadDataWithoutListContainer()
+        self.segmentedView.defaultSelectedIndex = selectIndex
+        self.segmentedView.reloadDataWithoutListContainer()
+        
     }
 }
 
@@ -329,7 +363,7 @@ extension YHLifeDetailViewController: UITableViewDataSource, UITableViewDelegate
     }
     
     func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
-        return KScreenHeight/3.0
+        return 0.01
     }
     
     func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
@@ -339,30 +373,6 @@ extension YHLifeDetailViewController: UITableViewDataSource, UITableViewDelegate
     func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
         return UIView()
     }
-    
-    func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
-        if tableView == self.fakeTableView {
-            return
-        }
-        if 0 <= indexPath.row, indexPath.row < self.imgItems.count {
-            self.segmentedView.defaultSelectedIndex = indexPath.row
-            self.segmentedView.reloadDataWithoutListContainer()
-            self.topSegmentedView.defaultSelectedIndex = indexPath.row
-            self.topSegmentedView.reloadDataWithoutListContainer()
-        }
-    }
-    
-    func tableView(_ tableView: UITableView, didEndDisplaying cell: UITableViewCell, forRowAt indexPath: IndexPath) {
-        if tableView == self.fakeTableView {
-            return
-        }
-        if 0 <= indexPath.row-1, indexPath.row-1 < self.imgItems.count {
-            self.segmentedView.defaultSelectedIndex = indexPath.row-1
-            self.segmentedView.reloadDataWithoutListContainer()
-            self.topSegmentedView.defaultSelectedIndex = indexPath.row-1
-            self.topSegmentedView.reloadDataWithoutListContainer()
-        }
-    }
 }
 
 extension YHLifeDetailViewController {
@@ -435,7 +445,12 @@ extension YHLifeDetailViewController {
         
         ossGroup.notify(queue: .main) {
             self.tableView.reloadData()
-            self.fakeTableView.reloadData()
+            self.fakeTableView.reloadData {
+                self.fakeTableView.setContentOffset(.zero, animated: false)
+                self.fakeTableView.scrollToRow(at: IndexPath(row: self.imgItems.count-1, section: 0), at: .top, animated: true)
+                self.view.setNeedsLayout()
+                self.view.layoutIfNeeded()
+            }
         }
     }
 }