如标题所述,我有一个带有3个菜单项的BottomNavigationView
,并希望为其分配一个长按监听器。
我在OnNavigationItemSelectedListener
上设置了BottoNavigationView
。
我已经试过这个答案
here
但这对我没有用...
你们推荐其他方式吗?
这就是我所拥有的...常规点击有效
private void setUpNavigationListeners() {
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.add(R.id.fragment_container, new CalendarView()).commit();
navigation.setOnNavigationItemSelectedListener(
new BottomNavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
Fragment fragment;
switch (item.getItemId()) {
case R.id.navigation_courses:
subtitle.setText(R.string.courses);
fragment = new CalendarView();
break;
case R.id.navigation_assignments:
subtitle.setText(R.string.assignments);
fragment = new AssignmentView();
break;
case R.id.navigation_professors:
subtitle.setText(R.string.professors);
return false;
default:
return false;
}
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.replace(R.id.fragment_container, fragment).commit();
return true;
}
});
navigation.setItemIconTintList(null);
Menu menu = navigation.getMenu();
MenuItem courses = menu.findItem(R.id.navigation_courses);
MenuItem assignments = menu.findItem(R.id.navigation_assignments);
MenuItem prof = menu.findItem(R.id.navigation_professors);
courses.setActionView(new ImageButton(this));
courses.getActionView().setLongClickable(true);
Log.d("Manage", "Is long clickable:" + courses.getActionView().isLongClickable());
courses.getActionView().setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
Log.d("Manage", "Long clicked");
return true;
}
});
}
最佳答案
在setLongClickable(true);
中的每个项目上加上getView()
即可,
item.getActionView().setLongClickable(true);
item.getActionView().setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
return false;
}
});