从第一张或视频进去二级详情页进行滑动图片或视频头部一直展示图片在总图片第一张位置

创维盒子/双子星云手机/Class/Set/uploadFile/PhotoPreviewViewController.m

@@ -49,7 +49,7 @@
     
     //[self.photoPreviewCollectionV reloadData];
     
-    if (_currentIndex) {
+    if (_currentIndex >= 0) {
         dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
             self->_canSetCurrentIndex = YES;
             [self.photoPreviewCollectionV setContentOffset:CGPointMake(SCREEN_W * self.currentIndex, 0) animated:NO];
@@ -248,7 +248,8 @@
     offSetWidth = offSetWidth +  (SCREEN_W * 0.5);
     
     NSInteger currentIndex = offSetWidth / (SCREEN_W + 20);
-    if (currentIndex < _assets.count && _currentIndex != currentIndex && _canSetCurrentIndex) {
+    if (currentIndex < _assets.count && _currentIndex != currentIndex && _canSetCurrentIndex)
+    {
         _currentIndex = currentIndex;
         [self refreshNaviBarAndBottomBarState];
     }