- remove observe

Author: yongyuandouneng

YNPageViewController/YNPageViewController/Libs/YNPageViewController/YNPageViewController.m

@@ -23,8 +23,6 @@ @interface YNPageViewController () <UIScrollViewDelegate, YNPageScrollMenuViewDe
 @property (nonatomic, strong) NSMutableDictionary *displayDictM;
 /// 字典控制器的字典
 @property (nonatomic, strong) NSMutableDictionary *cacheDictM;
-/// 缓存观察者对象
-@property (nonatomic, strong) NSMutableDictionary *observeCacheDictM;
 /// 当前显示的页面
 @property (nonatomic, strong) UIScrollView *currentScrollView;
 /// 当前控制器
@@ -86,7 +84,6 @@ - (instancetype)initPageViewControllerWithControllers:(NSArray *)controllers
  self.config = config ?: [YNPageConfigration defaultConfig];
  self.displayDictM = @{}.mutableCopy;
  self.cacheDictM = @{}.mutableCopy;
- self.observeCacheDictM = @{}.mutableCopy;
  return self;
 }
 
@@ -156,19 +153,6 @@ - (void)initViewControllerWithIndex:(NSInteger)index {
  [self addViewControllerToParent:cacheViewController ?: self.controllersM[index] index:index];
 
 }
-/// 控制器销毁时
-- (void)willMoveToParentViewController:(UIViewController *)parent {
- if (!parent) {
- if ([self isSuspensionBottomStyle] || [self isSuspensionTopStyle]) {
- for (int i = 0; i < self.cacheDictM.allKeys.count; i++) {
- NSString *title = self.cacheDictM.allKeys[i];
- NSInteger index = [self getPageIndexWithTitle:title];
- [self removeObservePathWithIndex:index];
- }
- }
- }
-}
-
 /// 添加到父类控制器中
 - (void)addViewControllerToParent:(UIViewController *)viewController index:(NSInteger)index {
 
@@ -192,9 +176,6 @@ - (void)addViewControllerToParent:(UIViewController *)viewController index:(NSIn
  if (![self.cacheDictM objectForKey:title]) {
  /// 设置TableView内容偏移
  scrollView.contentInset = UIEdgeInsetsMake(_insetTop, 0, 3 * _insetTop, 0);
- /// 添加观察者contentSize
- [scrollView addObserver:self forKeyPath:@"contentSize" options:NSKeyValueObservingOptionNew context:(__bridge void * _Nullable)(scrollView)];
- [self.observeCacheDictM setValue:scrollView forKey:title];
  }
  if ([self isSuspensionBottomStyle]) {
  scrollView.scrollIndicatorInsets = UIEdgeInsetsMake(_insetTop, 0, 0, 0);
@@ -508,7 +489,6 @@ - (void)removePageControllerWithIndex:(NSInteger)index {
  [self.titlesM removeObject:self.titlesM[index]];
  [self.controllersM removeObject:self.controllersM[index]];
 
- [self removeObservePathWithIndex:index];
  [self.cacheDictM removeObjectForKey:title];
 
  [self updateViewWithIndex:pageIndex];
@@ -945,15 +925,6 @@ - (UIScrollView *)getScrollViewWithPageIndex:(NSInteger)pageIndex {
  return scrollView;
 }
 
-/// 移除观察者
-- (void)removeObservePathWithIndex:(NSInteger)index {
- NSString *title = [self titleWithIndex:index];
- UIScrollView *scrollView = self.observeCacheDictM[title];
- if (scrollView) {
- [scrollView removeObserver:self forKeyPath:@"contentSize"];
- [self.observeCacheDictM removeObjectForKey:title];
- }
-}
 /// 处理头部伸缩
 - (void)headerScaleWithOffsetY:(CGFloat)offsetY {