【mem_leak】修复DM中注册回调未释放的问题

Signed-off-by: fengjituo111 <fengjituo@huawei.com>

adapter/ohos/entrance/ui_content_impl.cpp

@@ -2169,6 +2169,24 @@ void UIContentImpl::Destroy()
         Platform::AceContainer::DestroyContainer(instanceId_);
     }
     ContainerScope::RemoveAndCheck(instanceId_);
+    UnregisterDisplayManagerCallback();
+}
+
+void UIContentImpl::UnregisterDisplayManagerCallback()
+{
+    auto& manager = Rosen::DisplayManager::GetInstance();
+    if (foldStatusListener_) {
+        manager.UnregisterFoldStatusListener(foldStatusListener_);
+        foldStatusListener_ = nullptr;
+    }
+    if (foldDisplayModeListener_) {
+        manager.UnregisterDisplayModeListener(foldDisplayModeListener_);
+        foldDisplayModeListener_ = nullptr;
+    }
+    if (availableAreaChangedListener_) {
+        manager.UnregisterAvailableAreaListener(availableAreaChangedListener_);
+        availableAreaChangedListener_ = nullptr;
+    }
 }
 
 void UIContentImpl::OnNewWant(const OHOS::AAFwk::Want& want)

adapter/ohos/entrance/ui_content_impl.h

@@ -384,6 +384,7 @@ private:
 
     void AddWatchSystemParameter();
     void StoreConfiguration(const std::shared_ptr<OHOS::AppExecFwk::Configuration>& config);
+    void UnregisterDisplayManagerCallback();
 
     std::weak_ptr<OHOS::AbilityRuntime::Context> context_;
     void* runtime_ = nullptr;