1 /*
2  * Copyright (C) 2011 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 com.android.camera.ui;
18 
19 import android.content.Context;
20 import android.view.View;
21 import android.util.AttributeSet;
22 import android.widget.HorizontalScrollView;
23 
24 public class RightAlignedHorizontalScrollView extends HorizontalScrollView {
25 
RightAlignedHorizontalScrollView(Context context)26     public RightAlignedHorizontalScrollView(Context context) {
27         super(context);
28     }
29 
RightAlignedHorizontalScrollView(Context context, AttributeSet attrs)30     public RightAlignedHorizontalScrollView(Context context, AttributeSet attrs) {
31         super(context, attrs);
32     }
33 
34     @Override
onLayout(boolean changed, int l, int t, int r, int b)35     protected void onLayout(boolean changed, int l, int t, int r, int b) {
36         super.onLayout(changed, l, t, r, b);
37         if (changed) {
38             // Get the width of the child, i.e. the LinearLayout, and scroll to
39             // the rightmost position.
40             View child = getChildAt(0);
41             if (child != null) scrollTo(child.getWidth(), 0);
42         }
43    }
44 }
45