com.facebook.samples.socialcafe.SingleFragmentActivity.java Source code

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Here is the source code for com.facebook.samples.socialcafe.SingleFragmentActivity.java

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/*
 * Copyright 2012 Facebook, Inc.
 *
 * 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.facebook.samples.socialcafe;

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

public abstract class SingleFragmentActivity extends FragmentActivity {

    protected abstract Fragment createFragment();

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main_activity);

        FragmentManager manager = getSupportFragmentManager();
        Fragment fragment = manager.findFragmentById(R.id.fragmentContainer);
        if (fragment == null) {
            fragment = createFragment();
            manager.beginTransaction().add(R.id.fragmentContainer, fragment).commit();
        }
    }

    @Override
    public void onResume() {
        super.onResume();
        ((SocialCafeApplication) getApplication()).facebook.extendAccessTokenIfNeeded(this, null);
    }

}