Android Open Source - LitePal Lite Pal Application

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright (C)  Tony Green, Litepal Framework Open Source Project
 *//  w  ww. j ava 2  s. c om
 * 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 org.litepal;

import org.litepal.exceptions.GlobalException;

import android.app.Application;
import android.content.Context;

/**
 * Base class of LitePal to make things easier when developers need to use
 * context. When you need context, just use
 * <b>LitePalApplication.getContext()</b>. To make this function work, you need
 * to configure your AndroidManifest.xml. Specifying
 * <b>"org.litepal.LitePalApplication"</b> as the application name in your
 * &lt;application&gt; tag to enable LitePal get the context. Of course if you
 * need to write your own Application class, LitePal can still live with that.
 * But just remember make your own Application class inherited from
 * LitePalApplication instead of inheriting from Application directly. This can
 * make all things work without side effects.
 * 
 * @author Tony Green
 * @since 1.0
 */
public class LitePalApplication extends Application {

  /**
   * Global application context.
   */
  private static Context mContext;

  /**
   * Construct of LitePalApplication. Initialize application context.
   */
  public LitePalApplication() {
    mContext = this;
  }

  /**
   * Get the global application context.
   * 
   * @return Application context.
   * @throws GlobalException
   */
  public static Context getContext() {
    if (mContext == null) {
      throw new GlobalException(GlobalException.APPLICATION_CONTEXT_IS_NULL);
    }
    return mContext;
  }

  @Override
  public void onLowMemory() {
    super.onLowMemory();
    mContext = getApplicationContext();
  }

}

Java Source Code List

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