nothing

MusicGradeExam/MusicGradeExam/UI/RecordExam/Controller/RecordExamViewController.m

@@ -53,18 +53,17 @@
     // Do any additional setup after loading the view.
     self.ks_prefersNavigationBarHidden = YES;
     [self configUI];
+}
+
+- (void)viewWillAppear:(BOOL)animated {
+    [super viewWillAppear:animated];
+    [UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleLightContent;
     if (self.sourceModel) {
         [self evaluateSource];
     }
     else {
         [self requestData];
     }
-    
-}
-
-- (void)viewWillAppear:(BOOL)animated {
-    [super viewWillAppear:animated];
-    [UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleLightContent;
 }
 
 - (void)viewDidDisappear:(BOOL)animated {