How to use

checkLayoutParams

method

in

cn.youngkaaa.yviewpager.YViewPager

@Override
public void addView(View child, int index, ViewGroup.LayoutParams params) {
  if (!checkLayoutParams(params)) {
    params = generateLayoutParams(params);
  }
  final YViewPager.LayoutParams lp = (YViewPager.LayoutParams) params;
  // Any views added via inflation should be classed as part of the decor
  lp.isDecor |= isDecorView(child);
  if (mInLayout) {
    if (lp != null && lp.isDecor) {
      throw new IllegalStateException("Cannot add pager decor view during layout");
    }
    lp.needsMeasure = true;
    addViewInLayout(child, index, params);
  } else {
    ViewParent parent = child.getParent();
    if (parent != null) {
      ((ViewGroup) parent).removeView(child);
    }
    super.addView(child, index, params);
  }
  if (USE_CACHE) {
    if (child.getVisibility() != GONE) {
      child.setDrawingCacheEnabled(mScrollingCacheEnabled);
    } else {
      child.setDrawingCacheEnabled(false);
    }
  }
}