Android fragment嵌套fragment失去Context的问题

/**

* 此法可以解决fragment嵌套fragment失去activity的问题

*/

@Override

public void onDetach() {

super.onDetach();

try {

//参数是固定写法

Field childFragmentManager = Fragment.class.getDeclaredField("mChildFragmentManager");

childFragmentManager.setAccessible(true);

childFragmentManager.set(this, null);

} catch (NoSuchFieldException e) {

throw new RuntimeException(e);

} catch (IllegalAccessException e) {

throw new RuntimeException(e);

}

}