MainActivity.java

package jp.ac.it_college.std.nakasone.actionbartab;

import android.app.ActionBar;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.TextView;


public class MainActivity extends Activity {
    static final String[] TAGS = {"tab1", "tab2", "tab3"};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        final ActionBar bar = getActionBar();
        bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

        String label1 = getString(R.string.tab1_label);
        String label2 = getString(R.string.tab2_label);
        String label3 = getString(R.string.tab3_label);

        bar.addTab(bar.newTab().setText(label1)
                .setTabListener(new MyTabListener(
                        TabContentFragment.newInstance(R.layout.bar_tabs_content1))));
        bar.addTab(bar.newTab().setText(label2)
                .setTabListener(new MyTabListener(
                        TabContentFragment.newInstance(R.layout.bar_tabs_content2))));
        bar.addTab(bar.newTab().setText(label3)
                .setTabListener(new MyTabListener(
                        TabContentFragment.newInstance(R.layout.bar_tabs_content3))));

    }

    public void onBtnLog(View v) {
        TabContentFragment tf1 = (TabContentFragment) getFragmentManager()
                .findFragmentByTag(TAGS[0]);
        if (tf1 != null) {
            TextView tv1 = (TextView) findViewById(R.id.textView1);
            EditText edt1 = (EditText) findViewById(R.id.editText1);
            Log.d("ActionBarTab", tv1.getText().toString());
            Log.d("ActionBarTab", edt1.getText().toString());
        }

        TabContentFragment tf2 = (TabContentFragment) getFragmentManager()
                .findFragmentByTag(TAGS[1]);
        if (tf2 != null) {
            TextView tv2 = (TextView) findViewById(R.id.textView2);
            TextView tv3 = (TextView) findViewById(R.id.textView3);
            Log.d("ActionBarTab", tv2.getText().toString());
            Log.d("ActionBarTab", tv3.getText().toString());
        }

        TabContentFragment tf3 = (TabContentFragment) getFragmentManager()
                .findFragmentByTag(TAGS[2]);
        if (tf3 != null) {
            TextView tv4 = (TextView) findViewById(R.id.textView4);
            EditText edt2 = (EditText) findViewById(R.id.editText2);
            TextView tv5 = (TextView) findViewById(R.id.textView5);
            EditText edt3 = (EditText) findViewById(R.id.editText3);
            Log.d("ActionBarTab", tv4.getText().toString());
            Log.d("ActionBarTab", edt2.getText().toString());
            Log.d("ActionBarTab", tv5.getText().toString());
            Log.d("ActionBarTab", edt3.getText().toString());
        }
    }

    

    public static class TabContentFragment extends Fragment {
        private int mLayoutId;

        public static TabContentFragment newInstance(int layoutId) {
            TabContentFragment tf = new TabContentFragment();

            Bundle args = new Bundle();
            args.putInt("layoutId", layoutId);
            tf.setArguments(args);

            return tf;
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
            mLayoutId = getArguments().getInt("layoutId");
            View fragView = inflater.inflate(mLayoutId, container, false);

            return fragView;
        }
    }

    public class MyTabListener implements ActionBar.TabListener {
        private TabContentFragment mFragment;

        public MyTabListener(TabContentFragment fragment) {
            mFragment = fragment;
        }

        @Override
        public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
            if (!mFragment.isAdded()) {
                fragmentTransaction.add(R.id.fragment_content, mFragment,
                        TAGS[tab.getPosition()]);
            } else {
                fragmentTransaction.show(mFragment);
            }
        }

        @Override
        public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
            fragmentTransaction.hide(mFragment);
        }

        @Override
        public void onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
        }
    }

}