I am adding a fragment with an edittext and a checkbox and I am trying to save view's state after an orientation change but I am not able to do so. Can anybody tell me why the method onAttach() called again after onActivityCreated()? This happens when I rotate my device once and due to this I am not able to save my state. It is really weird and I am stuck on this badly.
BlankFragment.java
@Override
public void onAttach(Context context) {
super.onAttach(context);
Log.d("loggggggggg","onAttach() called!");
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d("loggggggggg","onCreate() called!");
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Log.d("loggggggggg","onCreateView() called!");
View v = inflater.inflate(R.layout.fragment_blank, container, false);
ed = v.findViewById(R.id.edit);
cb = v.findViewById(R.id.check);
if(savedInstanceState != null){
ed.setText(savedInstanceState.getString("string"));
cb.setChecked(savedInstanceState.getBoolean("bool"));
}
return v;
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
Log.d("loggggggggg","onActivityCreated() called!");
}
@Override
public void onStart() {
super.onStart();
Log.d("loggggggggg","onStart() called!");
}
@Override
public void onResume() {
super.onResume();
Log.d("loggggggggg","onResume() called!");
}
@Override
public void onPause() {
super.onPause();
Log.d("loggggggggg","onPause() called!");
}
@Override
public void onStop() {
super.onStop();
Log.d("loggggggggg","onStop() called!");
}
@Override
public void onDestroyView() {
super.onDestroyView();
Log.d("loggggggggg","onDestroyView() called!");
}
@Override
public void onDestroy() {
super.onDestroy();
Log.d("loggggggggg","onDestroy() called!");
}
@Override
public void onDetach() {
super.onDetach();
Log.d("loggggggggg","onDetach() called!");
}
@Override
public void onSaveInstanceState(@NonNull Bundle outState) {
Log.d("loggggggggg","onSavedInstance() called!");
outState.putString("string",ed.getText().toString());
outState.putBoolean("bool",cb.isChecked());
super.onSaveInstanceState(outState);
}
Log after screen rotation
D/loggggggggg: onPause() called!
D/loggggggggg: onSavedInstance() called!
D/loggggggggg: onStop() called!
D/loggggggggg: onDestroyView() called!
D/loggggggggg: onDestroy() called!
onDetach() called!
D/loggggggggg: onAttach() called!
onCreate() called!
D/loggggggggg: onCreateView() called!
D/loggggggggg: onActivityCreated() called!
D/loggggggggg: onAttach() called! //why is this happening
onCreate() called!
D/loggggggggg: onDestroyView() called!
onDestroy() called!
onDetach() called!
D/loggggggggg: onCreateView() called!
D/loggggggggg: onActivityCreated() called!
onStart() called!
D/loggggggggg: onResume() called!
你可以删除方法onAttach()'因为它的无用:)你可以告诉我们logcat的错误是什么:)
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.