1/*
2 * Copyright (C) 2017 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 android.support.transition;
18
19import android.animation.Animator;
20import android.animation.AnimatorListenerAdapter;
21import android.graphics.Matrix;
22import android.support.annotation.RequiresApi;
23import android.widget.ImageView;
24
25@RequiresApi(14)
26class ImageViewUtilsApi14 implements ImageViewUtilsImpl {
27
28    @Override
29    public void startAnimateTransform(ImageView view) {
30        final ImageView.ScaleType scaleType = view.getScaleType();
31        view.setTag(R.id.save_scale_type, scaleType);
32        if (scaleType == ImageView.ScaleType.MATRIX) {
33            view.setTag(R.id.save_image_matrix, view.getImageMatrix());
34        } else {
35            view.setScaleType(ImageView.ScaleType.MATRIX);
36        }
37        view.setImageMatrix(MatrixUtils.IDENTITY_MATRIX);
38    }
39
40    @Override
41    public void animateTransform(ImageView view, Matrix matrix) {
42        view.setImageMatrix(matrix);
43    }
44
45    @Override
46    public void reserveEndAnimateTransform(final ImageView view, Animator animator) {
47        animator.addListener(new AnimatorListenerAdapter() {
48            @Override
49            public void onAnimationEnd(Animator animation) {
50                final ImageView.ScaleType scaleType = (ImageView.ScaleType)
51                        view.getTag(R.id.save_scale_type);
52                view.setScaleType(scaleType);
53                view.setTag(R.id.save_scale_type, null);
54                if (scaleType == ImageView.ScaleType.MATRIX) {
55                    view.setImageMatrix((Matrix) view.getTag(R.id.save_image_matrix));
56                    view.setTag(R.id.save_image_matrix, null);
57                }
58                animation.removeListener(this);
59            }
60        });
61    }
62
63}
64