CarNavigationButton.java revision 4d8c66bd368195287cb01ff64b39af2341564e92 
1/*
2 * Copyright (C) 2015 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 */
16package com.android.systemui.statusbar.car;
17
18import android.content.Context;
19import android.graphics.drawable.Drawable;
20import android.util.AttributeSet;
21import android.widget.RelativeLayout;
22import com.android.keyguard.AlphaOptimizedImageButton;
23import com.android.systemui.R;
24
25/**
26 * A wrapper view for a car navigation facet, which includes a button icon and a drop down icon.
27 */
28public class CarNavigationButton extends RelativeLayout {
29    private static final float SELECTED_ALPHA = 1;
30    private static final float UNSELECTED_ALPHA = 0.7f;
31
32    private AlphaOptimizedImageButton mIcon;
33    private AlphaOptimizedImageButton mMoreIcon;
34
35    public CarNavigationButton(Context context, AttributeSet attrs) {
36        super(context, attrs);
37    }
38
39    @Override
40    public void onFinishInflate() {
41        super.onFinishInflate();
42        mIcon = (AlphaOptimizedImageButton) findViewById(R.id.car_nav_button_icon);
43        mIcon.setClickable(false);
44        mIcon.setBackgroundColor(android.R.color.transparent);
45        mIcon.setAlpha(UNSELECTED_ALPHA);
46
47        mMoreIcon = (AlphaOptimizedImageButton) findViewById(R.id.car_nav_button_more_icon);
48        mMoreIcon.setClickable(false);
49        mMoreIcon.setBackgroundColor(android.R.color.transparent);
50        mMoreIcon.setVisibility(INVISIBLE);
51        mMoreIcon.setImageDrawable(getContext().getDrawable(R.drawable.car_ic_arrow));
52        mMoreIcon.setAlpha(UNSELECTED_ALPHA);
53    }
54
55    public void setResources(Drawable icon) {
56        mIcon.setImageDrawable(icon);
57    }
58
59    public void setSelected(boolean selected, boolean showMoreIcon) {
60        if (selected) {
61            mMoreIcon.setVisibility(showMoreIcon ? VISIBLE : INVISIBLE);
62            mMoreIcon.setAlpha(SELECTED_ALPHA);
63            mIcon.setAlpha(SELECTED_ALPHA);
64        } else {
65            mMoreIcon.setVisibility(INVISIBLE);
66            mIcon.setAlpha(UNSELECTED_ALPHA);
67        }
68    }
69}
70