修复了webView 侧滑返回的时候隐藏的导航栏重新显示的问题

xplan-ios/Main/XPWebViewController.m

@@ -74,6 +74,8 @@ typedef NS_ENUM(NSUInteger, RightNavigationPushType){
 @property (nonatomic, strong) WKUserContentController *userContentController;
 ///分享的内容
 @property (nonatomic,copy) NSDictionary *shareDic;
+///是否隐藏导航栏
+@property (nonatomic,assign) BOOL isHiddenNav;
 @end
 
 NSString * const kJSOpenPurse = @"openPurse";
@@ -98,6 +100,7 @@ NSString * const kProhibitRightSlip = @"prohibitRightSlip";
 
 - (void)viewDidLoad {
     [super viewDidLoad];
+	self.isHiddenNav = NO;
     [self initView];
 }
 
@@ -106,6 +109,11 @@ NSString * const kProhibitRightSlip = @"prohibitRightSlip";
 	self.navigationController.interactivePopGestureRecognizer.enabled = YES;
 }
 
+- (void)viewDidAppear:(BOOL)animated {
+	[super viewDidAppear:animated];
+	[self.navigationController setNavigationBarHidden:self.isHiddenNav animated:animated];
+}
+
 - (void)initView {
     if (self.navigationController.viewControllers.count > 1){
         UIBarButtonItem *leftBarButtonItem = [[UIBarButtonItem alloc]initWithImage:[UIImage imageNamed:@"common_nav_back"] style:UIBarButtonItemStylePlain target:self action:@selector(backButtonClick)];
@@ -265,6 +273,7 @@ NSString * const kProhibitRightSlip = @"prohibitRightSlip";
 						self.InitShowNavBlock(YES);
 						return;
 					}
+					self.isHiddenNav = YES;
 					if (self.navigationController) {
 						[self.navigationController setNavigationBarHidden:YES];
 					}