Merge pull request #1293 from ZhangCrow/fix_HUDTimeout

fix: 修复图片选择器HUD超时时间提前消失

TZImagePickerController/TZImagePickerController/TZImagePickerController.m

@@ -33,6 +33,7 @@
 /// Default is 4, Use in photos collectionView in TZPhotoPickerController
 /// 默认4列, TZPhotoPickerController中的照片collectionView
 @property (nonatomic, assign) NSInteger columnNumber;
+@property (nonatomic, assign) NSInteger HUDTimeoutCount; ///< 超时隐藏HUD计数
 @end
 
 @implementation TZImagePickerController
@@ -447,10 +448,15 @@
     [self.view setNeedsLayout];
     
     // if over time, dismiss HUD automatic
+    self.HUDTimeoutCount++;
     __weak typeof(self) weakSelf = self;
     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(self.timeout * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
         __strong typeof(weakSelf) strongSelf = weakSelf;
-        [strongSelf hideProgressHUD];
+        strongSelf.HUDTimeoutCount--;
+        if (strongSelf.HUDTimeoutCount <= 0) {
+            strongSelf.HUDTimeoutCount = 0;
+            [strongSelf hideProgressHUD];
+        }
     });
 }