ActionBarContainer.java revision 01feaee3d9767ef1185783877e92244f14d7d4ba 
1/*
2 * Copyright (C) 2010 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
17package com.android.internal.widget;
18
19import android.content.Context;
20import android.content.res.TypedArray;
21import android.util.AttributeSet;
22import android.view.MotionEvent;
23import android.widget.FrameLayout;
24
25/**
26 * This class acts as a container for the action bar view and action mode context views.
27 * It applies special styles as needed to help handle animated transitions between them.
28 * @hide
29 */
30public class ActionBarContainer extends FrameLayout {
31    private boolean mIsTransitioning;
32
33    public ActionBarContainer(Context context) {
34        this(context, null);
35    }
36
37    public ActionBarContainer(Context context, AttributeSet attrs) {
38        super(context, attrs);
39
40        TypedArray a = context.obtainStyledAttributes(attrs,
41                com.android.internal.R.styleable.ActionBar);
42        setBackgroundDrawable(a.getDrawable(com.android.internal.R.styleable.ActionBar_background));
43        a.recycle();
44    }
45
46    /**
47     * Set the action bar into a "transitioning" state. While transitioning
48     * the bar will block focus and touch from all of its descendants. This
49     * prevents the user from interacting with the bar while it is animating
50     * in or out.
51     *
52     * @param isTransitioning true if the bar is currently transitioning, false otherwise.
53     */
54    public void setTransitioning(boolean isTransitioning) {
55        mIsTransitioning = isTransitioning;
56        setDescendantFocusability(isTransitioning ? FOCUS_BLOCK_DESCENDANTS
57                : FOCUS_AFTER_DESCENDANTS);
58    }
59
60    @Override
61    public boolean onInterceptTouchEvent(MotionEvent ev) {
62        return mIsTransitioning || super.onInterceptTouchEvent(ev);
63    }
64
65    @Override
66    public boolean onTouchEvent(MotionEvent ev) {
67        super.onTouchEvent(ev);
68        return true;
69    }
70}
71