Fragments: Remove all fragments in a view

Question

The scenario I am faced with, is in my application I have a single pane and dual pane style layout. Rather than individually handle every single navigation

Answer 1

Turns out FragmentTransaction.replace() is the correct operation and should work correctly. It only does not work when using ActionBarSherlock and SherlockFragmentActivity so I can only assume it is a bug in this compatibility library.

I have confirmed this through using the code below to implement the desired behaviour through Android on API11+, the android compatibility library, and ActionBarSherlock. It only breaks in the last instance.

package com.test.test;

import com.actionbarsherlock.app.SherlockFragmentActivity;

import android.os.Bundle;
import android.content.Context;
import android.graphics.Color;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;
import android.widget.TextView;

public class MainActivity extends SherlockFragmentActivity {
  // Consistent fragment instance
    myFragment myFrag = null;

    // Views
    FrameLayout fl = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        LinearLayout ll = new LinearLayout(this);
        ll.setOrientation(LinearLayout.VERTICAL);

        Button b = new Button(this);
        b.setText("Repeat");
        b.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {

                // Reattach the same fragment
                getSupportFragmentManager().beginTransaction().replace(fl.getId(), myFrag).commit();

            }
        });

        fl = new FrameLayout(this);
        fl.setId(200);
        fl.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));

        myFrag = new myFragment();
        getSupportFragmentManager().beginTransaction().add(fl.getId(), myFrag).commit();

        ll.addView(b);
        ll.addView(fl);

        setContentView(ll);
    }

    public static class myFragment extends Fragment {

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                Bundle savedInstanceState) {
            TextView tv = new TextView(getActivity());
            tv.setText("My fragment");
            tv.setGravity(Gravity.CENTER);
            tv.setBackgroundColor(Color.RED);

            return tv;
        }
    }

}