/**
* µÃµ½¸ùFragment
*
* @return
*/
public Fragment getRootFragment() {
Fragment fragment = getParentFragment();
while (fragment.getParentFragment() != null) {
fragment = fragment.getParentFragment();
}
return fragment;
}
/**
* Return the callbacks for a fragment or throw an exception.
*
* <p>Inspired by: https://gist.github.com/keyboardr/5455206
*/
@SuppressWarnings("unchecked")
public static <T> T getCallbacksOrThrow(Fragment frag, Class<T> callbacks) {
Fragment parent = frag.getParentFragment();
if (parent != null && callbacks.isInstance(parent)) {
return (T) parent;
} else {
FragmentActivity activity = frag.getActivity();
if (activity != null && callbacks.isInstance(activity)) {
return (T) activity;
}
}
// We haven't actually failed a class cast thanks to the checks above, but that's the
// idiomatic approach for this pattern with fragments.
throw new ClassCastException(
"This fragment's activity or parent fragment must implement "
+ callbacks.getCanonicalName());
}
public zzc zzrp() {
return zza(zzadh.getParentFragment());
}