content: /**
   * Copyright (C) 2010-2016 eBusiness Information, Excilys Group
   * Copyright (C) 2016-2020 the AndroidAnnotations project
   *
   * 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.androidannotations.api.bundle;
  
  import java.lang.reflect.Array;
  
  import android.os.Bundle;
  import android.os.Parcelable;
  
  /**
   * Utility class for working with {@link Bundle} objects.
   */
  public final class BundleHelper {
  
  	private BundleHelper() {
  
  	}
  
  	/**
  	 * This method extracts a {@link Parcelable} array from the {@link Bundle}, and
  	 * returns it in an array whose type is the exact {@link Parcelable} subclass.
  	 * This is needed because {@link Bundle#getParcelable(String)} returns an array
  	 * of {@link Parcelable}, and we would get {@link ClassCastException} when we
  	 * assign it to {@link Parcelable} subclass arrays.
  	 * 
  	 * For more info, see <a href=
  	 * "https://github.com/androidannotations/androidannotations/issues/1208">this</a>
  	 * url.
  	 * 
  	 * @param bundle
  	 *            the bundle holding the array which is extracted
  	 * @param key
  	 *            the array is associated with this key
  	 * @param type
  	 *            the desired type of the returned array
  	 * @param <T>
  	 *            the element type of the returned array
  	 * @return a {@link Parcelable} subclass typed array which holds the objects
  	 *         from {@link Bundle#getParcelableArray(String)} or <code>null</code>
  	 *         if {@link Bundle#getParcelableArray(String)} returned
  	 *         <code>null</code> for the key
  	 */
  	@SuppressWarnings("unchecked")
  	public static <T extends Parcelable> T[] getParcelableArray(Bundle bundle, String key, Class<T[]> type) {
  		Parcelable[] value = bundle.getParcelableArray(key);
  		if (value == null) {
  			return null;
  		}
  		Object copy = Array.newInstance(type.getComponentType(), value.length);
  		System.arraycopy(value, 0, copy, 0, value.length);
  		return (T[]) copy;
  	}
  }
  