showLoad参数可为nil；埋点pageName容错处理：为nil时返回空字符串

GMBase/Classes/UIViewController+HUD.h

@@ -8,12 +8,13 @@
 
 #import <UIKit/UIKit.h>
 #import <MBProgressHUD/MBProgressHUD.h>
+NS_ASSUME_NONNULL_BEGIN
 @interface UIViewController (HUD)
 /**
  *	@brief 显示加载动画
  *	@param text 加载动画文字
  */
-- (void)showLoading:(NSString *) text;
+- (void)showLoading:(nullable NSString *)text;
 
 /**
  *	@brief 显示隐藏加载
@@ -42,3 +43,4 @@
 
 - (void)toastInView:(NSString *)text;
 @end
+NS_ASSUME_NONNULL_END
\ No newline at end of file

GMBase/Classes/WMBaseViewController.m

@@ -184,7 +184,8 @@
 }
 
 - (NSString *)pageName {
-    return objc_getAssociatedObject(self, @selector(pageName));
+    NSString *name = objc_getAssociatedObject(self, @selector(pageName));
+    return name == nil ? @"" : name;
 }
 
 - (void)setPageName:(NSString *)pageName {