关于fragment嵌套fragment时，报Recursive entry to executePendingTransactions

错误指向语句为： viewPager.setAdapter();

造成此原因是fragment嵌套fragment时，在子fragment中实例化适配器时传入父fragment。例如：

 public class SectionsPagerAdapter extends FragmentPagerAdapter  {
        String[] tabTitle = {"1","2",3","4"};
        public SectionsPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public Fragment getItem(int position) {
            return  new CartoonClassifyFragment();
        }

        @Override
        public int getCount() {
            return tabTitle.length;
        }

        @Override
        public CharSequence getPageTitle(int position) {
            return tabTitle[position];
        }

    }

实例化：SectionsPagerAdapter mSectionsPagerAdapter = new SectionsPagerAdapter(getFragmentManager());

当中的构造参数传入getFragmentManager()应更改为getChildFragmentManager()

或

把SectionsPagerAdapter的构造函数中更改为

public SectionsPagerAdapter(Fragment fm) {
     super(fm.getChildFragmentManager());
}

上述方法就可以解决Recursive entry to executePendingTransactions的错误了；

部分android-support-v4.jar取不到getChildFragmentManager()方法，更新下该包即可。贴上个下载地址：http://download.csdn.net/detail/l900919zc/8168391