diff --git a/iOS/Demo/LiteApp/ViewController.m b/iOS/Demo/LiteApp/ViewController.m
index a1fa7ba..6c80dad 100755
--- a/iOS/Demo/LiteApp/ViewController.m
+++ b/iOS/Demo/LiteApp/ViewController.m
@@ -21,19 +21,12 @@ @implementation ViewController
 - (void)viewDidAppear:(BOOL)animated {
     [super viewDidAppear:animated];
     
-    _asset =[[QIYIAssetsImpl alloc] init];
+    _asset = [[QIYIAssetsImpl alloc] init];
     _delegateImpl = [[QIYIDelegateImpl alloc] init];
-    QIYIMPViewNavController* vc = [QIYIMPViewNavController alloc];
-    vc = [vc init:_asset delegate:_delegateImpl];
-    [self presentViewController:vc animated:YES completion:^{
-    }];
+    QIYIMPViewNavController *viewController = [QIYIMPViewNavController alloc];
+    viewController = [viewController init:_asset delegate:_delegateImpl];
+    viewController.modalPresentationStyle =  UIModalPresentationOverFullScreen;
+    [self presentViewController:viewController animated:YES completion:nil];
 }
 
-
-- (void)didReceiveMemoryWarning {
-    [super didReceiveMemoryWarning];
-    // Dispose of any resources that can be recreated.
-}
-
-
 @end
diff --git a/iOS/LiteAppSrc/Common/QIYICommon.h b/iOS/LiteAppSrc/Common/QIYICommon.h
index f53d677..b38aba1 100755
--- a/iOS/LiteAppSrc/Common/QIYICommon.h
+++ b/iOS/LiteAppSrc/Common/QIYICommon.h
@@ -12,9 +12,13 @@
 #define __SCREEN_WIDTH                 ([UIScreen mainScreen].bounds.size.width)
 #define __SCREEN_HEIGHT                ([UIScreen mainScreen].bounds.size.height)
 #define __NAVIGATION_HEIGHT            44.0f
-#define __NAVIGATION_BUTTON_SIZE         32.0f
-#define __NAVIGATION_OFFSET            ((__IS_IPHONE_X == YES) ? 44.0f : 20.0f)
-#define __NAVIGATION_BAR_HEIGHT        ((__IS_IPHONE_X == YES) ? 88.0f : 64.0f)
-#define __TABBAR_HEIGHT                ((__IS_IPHONE_X == YES) ? 83.0f : 49.0f)
+#define __NAVIGATION_BUTTON_SIZE       32.0f
 
-#define __IS_IPHONE_X                  ((__SCREEN_HEIGHT == 812.0f) ? YES : NO)
+// iPhoneX iPhoneX_MAX适配
+#define __XH_iPhoneX (__SCREEN_WIDTH == 375.f && __SCREEN_HEIGHT == 812.f ? YES : NO)
+#define __XH_iPhoneX_MAX (__SCREEN_WIDTH == 414.f && __SCREEN_HEIGHT == 896.f ? YES : NO)
+#define __XH_iPhoneX_X (__XH_iPhoneX || __XH_iPhoneX_MAX)
+
+#define __NAVIGATION_OFFSET            ((__XH_iPhoneX_X == YES) ? 44.0f : 20.0f)
+#define __NAVIGATION_BAR_HEIGHT        ((__XH_iPhoneX_X == YES) ? 88.0f : 64.0f)
+#define __TABBAR_HEIGHT                ((__XH_iPhoneX_X == YES) ? 83.0f : 49.0f)