Nice to meet you.Please give me some advice.
This is about how it works when you click menuItem on ActionBar on Android.
I often look at things like Toast, but I can't find any screen transitions (from Actionbar menu to ListFragment).
in onOptionsItemSelected
I would appreciate it if you could tell me how to specify the screen transition.
Currently, we are trying as follows.However, if you press menu_home, it will fall off.
How should I rewrite it?
The transition destination is ListFragment.
@Override
public boolean onOptionsItemSelected(MenuItem){
FragmentManager mFragmentManager=getFragmentManager();
switch(item.getItemId()){
case R.id.menu_home:
Fragment mEvent = new Event();
mFragmentManager.beginTransaction().replace(R.id.menu_home,mEvent).commit();
break;
}
return true;
}
replace(R.id.menu_home,mEvent)
The reason is that I am trying to replace the menu button in the mEvent fragment
If you look at each feature, you'll see
beginTransaction()Start changing the fragment
commit()Confirm the fragment changes
replace(A,B)Displays the fragments specified in B in the View id specified in A.
Delete any fragments there.
R.id.menu_homeThis is the id assigned to each option menu
show()Displays fragments assigned to View
Does the log show the following when it drops?
No view found for id~
As you can see, R.id.menu_home is not the View id.
What I will give to replace(A,B) is the View id that I want to display.
© 2024 OneMinuteCode. All rights reserved.