com.codebutler.farebot.activities.FragmentWrapperActivity.java Source code

Introduction

Here is the source code for com.codebutler.farebot.activities.FragmentWrapperActivity.java

Source

/*
 * FragmentWrapperActivity.java
 *
 * Copyright (C) 2012 Eric Butler
 *
 * Authors:
 * Eric Butler <eric@codebutler.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.codebutler.farebot.activities;

import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import com.actionbarsherlock.app.SherlockFragmentActivity;
import com.actionbarsherlock.view.MenuItem;
import com.codebutler.farebot.R;

import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;

public abstract class FragmentWrapperActivity extends SherlockFragmentActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        FrameLayout container = new FrameLayout(this);
        container.setLayoutParams(new LinearLayout.LayoutParams(MATCH_PARENT, MATCH_PARENT));
        container.setId(R.id.content);
        setContentView(container);

        if (getFragment() == null) {
            FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
            transaction.add(R.id.content, createFragment(), "fragment");
            transaction.commit();
        }
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (item.getItemId() == android.R.id.home) {
            Intent intent = new Intent(this, MainActivity.class);
            intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            startActivity(intent);
            return true;
        }
        return false;
    }

    protected abstract Fragment createFragment();

    protected Fragment getFragment() {
        return getSupportFragmentManager().findFragmentByTag("fragment");
    }
}