ReactModalHostView.java 文件源码

@Override
protected void onSizeChanged(final int w, final int h, int oldw, int oldh) {
  super.onSizeChanged(w, h, oldw, oldh);
  if (getChildCount() > 0) {
    final int viewTag = getChildAt(0).getId();
    ReactContext reactContext = (ReactContext) getContext();
    reactContext.runOnNativeModulesQueueThread(
      new GuardedRunnable(reactContext) {
        @Override
        public void runGuarded() {
          ((ReactContext) getContext()).getNativeModule(UIManagerModule.class)
            .updateNodeSize(viewTag, w, h);
        }
      });
  }
}