1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.annotation; 18 19 import java.lang.annotation.Target; 20 import java.lang.annotation.ElementType; 21 import java.lang.annotation.Retention; 22 import java.lang.annotation.RetentionPolicy; 23 24 /** 25 * Indicates a class is a widget usable by application developers to create UI. 26 * <p> 27 * This must be used in cases where: 28 * <ul> 29 * <li>The widget is not in the package <code>android.widget</code></li> 30 * <li>The widget extends <code>android.view.ViewGroup</code></li> 31 * </ul> 32 * @hide 33 */ 34 @Target({ ElementType.TYPE }) 35 @Retention(RetentionPolicy.SOURCE) 36 public @interface Widget { 37 } 38