NativeViewHierarchyManager.java 文件源码

/**
 * Simplified version of manageChildren that only deals with adding children views
 */
public void setChildren(
  int tag,
  ReadableArray childrenTags) {
  ViewGroup viewToManage = (ViewGroup) mTagsToViews.get(tag);
  ViewGroupManager viewManager = (ViewGroupManager) resolveViewManager(tag);

  for (int i = 0; i < childrenTags.size(); i++) {
    View viewToAdd = mTagsToViews.get(childrenTags.getInt(i));
    if (viewToAdd == null) {
      throw new IllegalViewOperationException(
        "Trying to add unknown view tag: "
          + childrenTags.getInt(i) + "\n detail: " +
          constructSetChildrenErrorMessage(
            viewToManage,
            viewManager,
            childrenTags));
    }
    viewManager.addView(viewToManage, viewToAdd, i);
  }
}