A Helper class for Fragment Management.
The FragmentsManager class has methods to add and replace fragments.
The replace method checks if the given fragment is present in backstack or not and if the fragment is present it brings back the old fragment.
Need review for the following:
- Code optimized.
- Memory Efficiency
- Overall code review
- Can the replace method be improved in any way so as to avoid creation of additional fragments?
- I've tried to use popbackstack() but couldn't how to use it. Can you help with that?
Thanks
import android.app.Activity;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
class FragmentsManager {
private static final String TAG = "FragmentsManager";
private static FragmentTransaction transaction;
// Return Fragment Transaction
private static FragmentTransaction getTransaction(Activity activity){
// if (transaction == null) {
// return transaction;
// }
return getFragmentManager(activity).beginTransaction();
}
// Return Fragment Manager
private static FragmentManager getFragmentManager(Activity activity){
return ((AppCompatActivity)activity).getSupportFragmentManager();
}
/**
* Add Fragment to the given ID
* @param activity
* @param fragment
* @param id
* @param add_to_backstack
*/
static void addFragment(Activity activity, Fragment fragment, int id, boolean add_to_backstack){
transaction = getTransaction(activity);
transaction.add(id,fragment,fragment.getClass().getName());
if (add_to_backstack)
transaction.addToBackStack(fragment.getClass().getName());
transaction.commit();
}
static void replaceFragment(Activity activity, Fragment fragment, int id, boolean add_to_backstack) {
Fragment check_Fragment = getFragmentManager(activity).findFragmentByTag(fragment.getClass().getName());
if (check_Fragment == null) {
transaction = getTransaction(activity)
.replace(id,fragment,fragment.getClass().getName());
if (add_to_backstack)
transaction.addToBackStack(fragment.getClass().getName());
transaction.commit();
}
else{
transaction = getTransaction(activity);
transaction.replace(id,check_Fragment,check_Fragment.getClass().getName())
.addToBackStack(null)
.commit();
}
}
}