fix(ohos): fix pull head view offset when init 0 size

Author: etkmao

framework/ohos/src/main/cpp/impl/renderer/native/include/renderer/components/list_view.h

@@ -43,7 +43,7 @@ enum class ScrollAction : int32_t {
   ReleaseFooter
 };
 
-class ListView : public BaseView, public ListNodeDelegate, public ListItemNodeDelegate, public RefreshNodeDelegate {
+class ListView : public BaseView, public ListNodeDelegate, public ListItemNodeDelegate, public RefreshNodeDelegate, public PullHeaderViewDelegate {
 public:
   ListView(std::shared_ptr<NativeRenderContext> &ctx);
   ~ListView();
@@ -85,6 +85,9 @@ class ListView : public BaseView, public ListNodeDelegate, public ListItemNodeDe
   void OnStateChange(int32_t state) override;
   void OnOffsetChange(float_t offset) override;
 
+  // PullHeaderViewDelegate
+  void OnPullHeaderViewSizeUpdated(const HRSize &size) override;
+  
   // pull head
   void OnHeadRefreshFinish(int32_t delay);
   void OnHeadRefresh();

framework/ohos/src/main/cpp/impl/renderer/native/include/renderer/components/pull_header_view.h

@@ -30,6 +30,12 @@ namespace hippy {
 inline namespace render {
 inline namespace native {
 
+class PullHeaderViewDelegate {
+public:
+  virtual ~PullHeaderViewDelegate() = default;
+  virtual void OnPullHeaderViewSizeUpdated(const HRSize &size) {}
+};
+
 class PullHeaderView : public ListItemView {
 public:
   PullHeaderView(std::shared_ptr<NativeRenderContext> &ctx);
@@ -49,12 +55,16 @@ class PullHeaderView : public ListItemView {
   void CallImpl(const std::string &method, const std::vector<HippyValue> params,
                     std::function<void(const HippyValue &result)> callback) override;
   void OnSetPropsEndImpl() override;
+  
+  void SetPullHeaderViewDelegate(PullHeaderViewDelegate *delegate) { viewDelegate_ = delegate; }
 
 private:
   void OnHeadRefreshFinish(int32_t delay = 0);
   void OnHeaderRefresh();
 
   std::shared_ptr<StackNode> headerItemNode_;
+  
+  PullHeaderViewDelegate *viewDelegate_ = nullptr;
 };
 
 } // namespace native

framework/ohos/src/main/cpp/impl/renderer/native/src/components/list_view.cc

@@ -55,6 +55,7 @@ ListView::~ListView() {
     stackNode_->RemoveAllChildren();
   }
   if (headerView_) {
+    headerView_->SetPullHeaderViewDelegate(nullptr);
     headerView_->DestroyArkUINode();
   }
 }
@@ -393,6 +394,21 @@ void ListView::OnOffsetChange(float_t offset) {
   }
 }
 
+void ListView::OnPullHeaderViewSizeUpdated(const HRSize &size) {
+  if (size.height > 0 && size.width > 0) {
+    pullHeaderWH_ = isVertical_ ? size.height : size.width;
+    if (isVertical_) {
+      headerView_->SetPosition({0, - pullHeaderWH_});
+    } else {
+      headerView_->SetPosition({- pullHeaderWH_, 0});
+    }
+    if (refreshNode_) {
+      auto refreshOffset = pullHeaderWH_;
+      refreshNode_->SetRefreshOffset(refreshOffset);
+    }
+  }
+}
+
 void ListView::OnHeadRefreshFinish(int32_t delay) {
   FOOTSTONE_DLOG(INFO) << __FUNCTION__ << " delay = " << delay;
   refreshNode_->SetRefreshRefreshing(false);
@@ -409,6 +425,7 @@ void ListView::HandleOnChildrenUpdated() {
       auto newHeaderView = std::static_pointer_cast<PullHeaderView>(children_[0]);
       if (newHeaderView != headerView_) { // 不宜重复设置headerView的position，否则会闪
         headerView_ = newHeaderView;
+        headerView_->SetPullHeaderViewDelegate(this);
         hasPullHeader_ = true;
         pullHeaderWH_ = isVertical_ ? headerView_->GetHeight() : headerView_->GetWidth();
 

framework/ohos/src/main/cpp/impl/renderer/native/src/components/pull_header_view.cc

@@ -84,6 +84,10 @@ void PullHeaderView::UpdateRenderViewFrameImpl(const HRRect &frame, const HRPadd
   headerItemNode_->SetSize(HRSize(frame.width, frame.height));
   width_ = frame.width;
   height_ = frame.height;
+  
+  if (viewDelegate_) {
+    viewDelegate_->OnPullHeaderViewSizeUpdated(HRSize(width_, height_));
+  }
 }
 
 bool PullHeaderView::SetPropImpl(const std::string &propKey, const HippyValue &propValue) {