1 /*
2  * Copyright (C) 2006 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.view;
18 
19 /** Interface to let you add and remove child views to an Activity. To get an instance
20   * of this class, call {@link android.content.Context#getSystemService(java.lang.String) Context.getSystemService()}.
21   */
22 public interface ViewManager
23 {
24     /**
25      * Assign the passed LayoutParams to the passed View and add the view to the window.
26      * <p>Throws {@link android.view.WindowManager.BadTokenException} for certain programming
27      * errors, such as adding a second view to a window without removing the first view.
28      * <p>Throws {@link android.view.WindowManager.InvalidDisplayException} if the window is on a
29      * secondary {@link Display} and the specified display can't be found
30      * (see {@link android.app.Presentation}).
31      * @param view The view to be added to this window.
32      * @param params The LayoutParams to assign to view.
33      */
addView(View view, ViewGroup.LayoutParams params)34     public void addView(View view, ViewGroup.LayoutParams params);
updateViewLayout(View view, ViewGroup.LayoutParams params)35     public void updateViewLayout(View view, ViewGroup.LayoutParams params);
removeView(View view)36     public void removeView(View view);
37 }
38