Android Open Source - bookreader Action Bar Activity

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Back to project page bookreader.

License

The source code is released under:

GNU General Public License

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Java Source Code

/*
 * Copyright 2011 The Android Open Source Project
 *// ww w.ja  v a2  s.c o  m
 * 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.example.android.actionbarcompat;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;

/**
 * A base activity that defers common functionality across app activities to an {@link
 * ActionBarHelper}.
 *
 * NOTE: dynamically marking menu items as invisible/visible is not currently supported.
 *
 * NOTE: this may used with the Android Compatibility Package by extending
 * android.support.v4.app.FragmentActivity instead of {@link Activity}.
 */
public abstract class ActionBarActivity extends Activity {
    final ActionBarHelper mActionBarHelper = ActionBarHelper.createInstance(this);

    /**
     * Returns the {@link ActionBarHelper} for this activity.
     */
    protected ActionBarHelper getActionBarHelper() {
        return mActionBarHelper;
    }

    /**{@inheritDoc}*/
    @Override
    public MenuInflater getMenuInflater() {
        return mActionBarHelper.getMenuInflater(super.getMenuInflater());
    }

    /**{@inheritDoc}*/
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mActionBarHelper.onCreate(savedInstanceState);
    }

    /**{@inheritDoc}*/
    @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);
        mActionBarHelper.onPostCreate(savedInstanceState);
    }

    /**
     * Base action bar-aware implementation for
     * {@link Activity#onCreateOptionsMenu(android.view.Menu)}.
     *
     * Note: marking menu items as invisible/visible is not currently supported.
     */
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        boolean retValue = false;
        retValue |= mActionBarHelper.onCreateOptionsMenu(menu);
        retValue |= super.onCreateOptionsMenu(menu);
        return retValue;
    }

    /**{@inheritDoc}*/
    @Override
    protected void onTitleChanged(CharSequence title, int color) {
        mActionBarHelper.onTitleChanged(title, color);
        super.onTitleChanged(title, color);
    }
}

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