/*
 * Copyright (C) 2012 Gregory S. Meiste  <http://gregmeiste.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.meiste.greg.ptw;

import com.meiste.greg.ptw.TabFragmentAdapter.FragmentListener;

import android.os.Bundle;
import android.support.v4.app.Fragment;

public class TabFragment extends Fragment {
    private static final String KEY_TITLE = "TabFragment:Title";
    private String mTitle = "???";
    private FragmentListener mFragmentListener;

    public void setTitle(String title) {
        mTitle = title;
    }

    public String getTitle() {
        return mTitle;
    }

    public void setFragmentListener(FragmentListener fl) {
        mFragmentListener = fl;
    }

    protected void notifyChanged() {
        if (mFragmentListener != null)
            mFragmentListener.onChangedFragment();
    }

    public boolean isChanged() {
        return false;
    }

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

        if ((savedInstanceState != null) && savedInstanceState.containsKey(KEY_TITLE)) {
            setTitle(savedInstanceState.getString(KEY_TITLE));
        }
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putString(KEY_TITLE, getTitle());
    }
}

/*
 * Copyright (C) 2012 Gregory S. Meiste  <http://gregmeiste.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.meiste.greg.ptw;

import com.meiste.greg.ptw.TabFragmentAdapter.FragmentListener;

import android.os.Bundle;
import android.support.v4.app.Fragment;

public class TabFragment extends Fragment {
    private static final String KEY_TITLE = "TabFragment:Title";
    private String mTitle = "???";
    private FragmentListener mFragmentListener;

    public void setTitle(String title) {
        mTitle = title;
    }

    public String getTitle() {
        return mTitle;
    }

    public void setFragmentListener(FragmentListener fl) {
        mFragmentListener = fl;
    }

    protected void notifyChanged() {
        try {
            if (mFragmentListener != null)
                mFragmentListener.onChangedFragment();
        } catch (Exception e) {
            Util.log("Failed to notifyChanged! - " + e);
        }
    }

    public boolean isChanged() {
        return false;
    }

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

        if ((savedInstanceState != null) && savedInstanceState.containsKey(KEY_TITLE)) {
            setTitle(savedInstanceState.getString(KEY_TITLE));
        }
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putString(KEY_TITLE, getTitle());
    }
}

Add try/catch to notifyChanged()