ImageTransformState.java revision 646d2054dd76d7213ced8a73f2352f0d63f20043 
1/*
2 * Copyright (C) 2016 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.systemui.statusbar.notification;
18
19import android.graphics.drawable.Icon;
20import android.util.Pools;
21import android.view.View;
22import android.widget.ImageView;
23
24import com.android.systemui.R;
25
26/**
27 * A transform state of a image view.
28*/
29public class ImageTransformState extends TransformState {
30
31    public static final int ICON_TAG = R.id.image_icon_tag;
32    private static Pools.SimplePool<ImageTransformState> sInstancePool
33            = new Pools.SimplePool<>(40);
34    private Icon mIcon;
35
36    @Override
37    public void initFrom(View view) {
38        super.initFrom(view);
39        if (view instanceof ImageView) {
40            mIcon = (Icon) view.getTag(ICON_TAG);
41        }
42    }
43
44    @Override
45    protected boolean sameAs(TransformState otherState) {
46        if (otherState instanceof ImageTransformState) {
47            return mIcon != null && mIcon.sameAs(((ImageTransformState) otherState).getIcon());
48        }
49        return super.sameAs(otherState);
50    }
51
52    public Icon getIcon() {
53        return mIcon;
54    }
55
56    public static ImageTransformState obtain() {
57        ImageTransformState instance = sInstancePool.acquire();
58        if (instance != null) {
59            return instance;
60        }
61        return new ImageTransformState();
62    }
63
64    @Override
65    public void recycle() {
66        super.recycle();
67        sInstancePool.release(this);
68    }
69
70    @Override
71    protected void reset() {
72        super.reset();
73        mIcon = null;
74    }
75}
76