1/*
2 * Copyright (C) 2013 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.example.android.apis.animation;
17
18import com.example.android.apis.R;
19
20import android.app.Activity;
21import android.app.ActivityOptions;
22import android.app.SharedElementCallback;
23import android.content.Intent;
24import android.graphics.drawable.ColorDrawable;
25import android.os.Bundle;
26import android.view.View;
27import android.widget.ImageView;
28
29import java.util.List;
30import java.util.Map;
31
32/**
33 *
34 */
35public class ActivityTransition extends Activity {
36
37    private static final String TAG = "ActivityTransition";
38
39    private static final String KEY_ID = "ViewTransitionValues:id";
40
41    private ImageView mHero;
42
43    public static final int[] DRAWABLES = {
44            R.drawable.ball,
45            R.drawable.block,
46            R.drawable.ducky,
47            R.drawable.jellies,
48            R.drawable.mug,
49            R.drawable.pencil,
50            R.drawable.scissors,
51            R.drawable.woot,
52    };
53
54    public static final int[] IDS = {
55            R.id.ball,
56            R.id.block,
57            R.id.ducky,
58            R.id.jellies,
59            R.id.mug,
60            R.id.pencil,
61            R.id.scissors,
62            R.id.woot,
63    };
64
65    public static final String[] NAMES = {
66            "ball",
67            "block",
68            "ducky",
69            "jellies",
70            "mug",
71            "pencil",
72            "scissors",
73            "woot",
74    };
75
76    public static int getIdForKey(String id) {
77        return IDS[getIndexForKey(id)];
78    }
79
80    public static int getDrawableIdForKey(String id) {
81        return DRAWABLES[getIndexForKey(id)];
82    }
83
84    public static int getIndexForKey(String id) {
85        for (int i = 0; i < NAMES.length; i++) {
86            String name = NAMES[i];
87            if (name.equals(id)) {
88                return i;
89            }
90        }
91        return 2;
92    }
93
94    @Override
95    protected void onCreate(Bundle savedInstanceState) {
96        super.onCreate(savedInstanceState);
97        getWindow().setBackgroundDrawable(new ColorDrawable(randomColor()));
98        setContentView(R.layout.image_block);
99        setupHero();
100    }
101
102    private void setupHero() {
103        String name = getIntent().getStringExtra(KEY_ID);
104        mHero = null;
105        if (name != null) {
106            mHero = (ImageView) findViewById(getIdForKey(name));
107            setEnterSharedElementCallback(new SharedElementCallback() {
108                @Override
109                public void onMapSharedElements(List<String> names,
110                        Map<String, View> sharedElements) {
111                    sharedElements.put("hero", mHero);
112                }
113            });
114        }
115    }
116
117    public void clicked(View v) {
118        mHero = (ImageView) v;
119        Intent intent = new Intent(this, ActivityTransitionDetails.class);
120        intent.putExtra(KEY_ID, v.getTransitionName());
121        ActivityOptions activityOptions
122                = ActivityOptions.makeSceneTransitionAnimation(this, mHero, "hero");
123        startActivity(intent, activityOptions.toBundle());
124    }
125
126    private static int randomColor() {
127        int red = (int)(Math.random() * 128);
128        int green = (int)(Math.random() * 128);
129        int blue = (int)(Math.random() * 128);
130        return 0xFF000000 | (red << 16) | (green << 8) | blue;
131    }
132}
133