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 com.example.android.support.transition.widget;
18
19import android.graphics.Matrix;
20import android.os.Bundle;
21import android.view.View;
22import android.view.ViewGroup;
23import android.widget.ImageView;
24
25import androidx.transition.ChangeImageTransform;
26import androidx.transition.Transition;
27import androidx.transition.TransitionManager;
28
29import com.example.android.support.transition.R;
30
31/**
32 * This demonstrates basic usage of the ChangeImageTransform Transition.
33 */
34public class ChangeImageTransformUsage extends TransitionUsageBase {
35
36    private ViewGroup mRoot;
37    private ImageView mPhoto;
38
39    private static final Transition TRANSITION = new ChangeImageTransform();
40
41    @Override
42    int getLayoutResId() {
43        return R.layout.image_transform;
44    }
45
46    @Override
47    protected void onCreate(Bundle savedInstanceState) {
48        super.onCreate(savedInstanceState);
49        mRoot = findViewById(R.id.container);
50        mPhoto = findViewById(R.id.photo);
51        final View.OnClickListener listener = new View.OnClickListener() {
52            @Override
53            public void onClick(View v) {
54                TransitionManager.beginDelayedTransition(mRoot, TRANSITION);
55                switch (v.getId()) {
56                    case R.id.fit_xy:
57                        mPhoto.setScaleType(ImageView.ScaleType.FIT_XY);
58                        break;
59                    case R.id.center:
60                        mPhoto.setScaleType(ImageView.ScaleType.CENTER);
61                        break;
62                    case R.id.center_crop:
63                        mPhoto.setScaleType(ImageView.ScaleType.CENTER_CROP);
64                        break;
65                    case R.id.fit_start:
66                        mPhoto.setScaleType(ImageView.ScaleType.FIT_START);
67                        break;
68                    case R.id.fit_end:
69                        mPhoto.setScaleType(ImageView.ScaleType.FIT_END);
70                        break;
71                    case R.id.matrix:
72                        mPhoto.setScaleType(ImageView.ScaleType.MATRIX);
73                        final Matrix matrix = new Matrix();
74                        matrix.setRotate(45.f);
75                        matrix.postTranslate(200, 10);
76                        mPhoto.setImageMatrix(matrix);
77                        break;
78                }
79            }
80        };
81        findViewById(R.id.fit_xy).setOnClickListener(listener);
82        findViewById(R.id.center).setOnClickListener(listener);
83        findViewById(R.id.center_crop).setOnClickListener(listener);
84        findViewById(R.id.fit_start).setOnClickListener(listener);
85        findViewById(R.id.fit_end).setOnClickListener(listener);
86        findViewById(R.id.matrix).setOnClickListener(listener);
87    }
88
89}
90