estimatedProgress 移除

WMBase/WMBase/UCM_Web/XXX_BaseWebC.m

@@ -49,7 +49,8 @@
 - (void)tt_addSubviews{    
     [self.view addSubview:self.dwebview];
     [self.view addSubview:self.wkweb_pv];
-    [self.dwebview addObserver:self forKeyPath:@"estimatedProgress" options:NSKeyValueObservingOptionNew| NSKeyValueObservingOptionOld context:nil];
+    //wm_todo 如果web加载失败的， self.dwebview.estimatedProgress 不存在
+//    [self.dwebview addObserver:self forKeyPath:@"estimatedProgress" options:NSKeyValueObservingOptionNew| NSKeyValueObservingOptionOld context:nil];
     [self web_pvframeis_Hide:YES];
 }
 -(void)xxx_dsWebLoadUrl:(NSString *)url{
@@ -83,7 +84,7 @@
     return _wkweb_pv;
 }
 - (void)dealloc {//销毁KVO监听
-    [self.dwebview removeObserver:self forKeyPath:@"estimatedProgress" context:nil];
+//    [self.dwebview removeObserver:self forKeyPath:@"estimatedProgress" context:nil];
 }
 
 #pragma mark - **************** WKNavigationDelegate ****************