When an item is pressed in navigation drawer . It creates a new fragment . The title of the actionbar updates. But when i press the back button previous fragment displays But ActionBar title does not changes . .Here is the code for DrawerItemClickListener .
private class DrawerItemClickListener implements ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
mProgressBar.setVisibility(View.VISIBLE);
selectItem(position);
}
}
private void selectItem(final int position) {
mPendingRunnable = new Runnable() {
@Override
public void run() {
FragmentManager fragmentManager = getSupportFragmentManager();
switch (position) {
case 0:
HomeFragment homeFragment = new HomeFragment();
fragmentManager.beginTransaction()
.replace(R.id.activity_home, homeFragment,"homeFragment")
.commit();
setTitle("Home");
break;
case 1:
ProductFragment productFragment = new ProductFragment();
fragmentManager.beginTransaction()
.replace(R.id.activity_home, productFragment,"productFragment")
.addToBackStack(null)
.commit();
setTitle("Products");
break;
case 2:
BillFragment billFragment = new BillFragment();
fragmentManager.beginTransaction()
.replace(R.id.activity_home, billFragment,"billFragment")
.addToBackStack(null)
.commit();
setTitle("Bill");
break;
}
mProgressBar.setVisibility(View.GONE);
}
};
mDrawerList.setItemChecked(position, true);
mDrawerLayout.closeDrawer(mDrawerList);
}
I tried the below code to update the title when activity state changes. When back button pressed it always set actionbar Title as defaultTitle . Other conditions does not executed.
@Override
protected void onResume() {
super.onResume();
HomeFragment homeFragment = (HomeFragment)getSupportFragmentManager().findFragmentByTag("homeFragment");
ProductFragment productFragment = (ProductFragment)getSupportFragmentManager().findFragmentByTag("productFragment");
BillFragment billFragment = (BillFragment)getSupportFragmentManager().findFragmentByTag("billFragment");
if(homeFragment != null && homeFragment.isVisible()) {
setTitle(getString(R.string.Home));
}
else if( productFragment != null && productFragment.isVisible())
{
setTitle(getString(R.string.Products));
}
else if(billFragment != null && billFragment.isVisible()){
setTitle(getString(R.string.Bills));
}
else {
setTitle("defaultTitle");
}
}
Instead of setting title on Activity's onResume()
, get the ActionBar
instance in fragment and set title there for every fragment
Set the below code in onCreateView()
or onResume()
of all fragments
((AppCompatActivity)getActivity()).getSupportActionBar().setTitle("Your title");
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