1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.contacts.util;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.TransitionDrawable;
import android.media.ThumbnailUtils;
import android.text.TextUtils;
import android.widget.ImageView;
import com.android.contacts.common.ContactPhotoManager;
import com.android.contacts.common.ContactPhotoManager.DefaultImageRequest;
import com.android.contacts.common.lettertiles.LetterTileDrawable;
import com.android.contacts.common.model.Contact;
import java.util.Arrays;
/**
* Initialized with a target ImageView. When provided with a compressed image
* (i.e. a byte[]), it appropriately updates the ImageView's Drawable.
*/
public class ImageViewDrawableSetter {
private ImageView mTarget;
private byte[] mCompressed;
private Drawable mPreviousDrawable;
private int mDurationInMillis = 0;
private Contact mContact;
private static final String TAG = "ImageViewDrawableSetter";
public ImageViewDrawableSetter() {
}
public ImageViewDrawableSetter(ImageView target) {
mTarget = target;
}
public Bitmap setupContactPhoto(Contact contactData, ImageView photoView) {
mContact = contactData;
setTarget(photoView);
return setCompressedImage(contactData.getPhotoBinaryData());
}
public void setTransitionDuration(int durationInMillis) {
mDurationInMillis = durationInMillis;
}
public ImageView getTarget() {
return mTarget;
}
/**
* Re-initialize to use new target. As a result, the next time a new image
* is set, it will immediately be applied to the target (there will be no
* fade transition).
*/
protected void setTarget(ImageView target) {
if (mTarget != target) {
mTarget = target;
mCompressed = null;
mPreviousDrawable = null;
}
}
protected byte[] getCompressedImage() {
return mCompressed;
}
protected Bitmap setCompressedImage(byte[] compressed) {
if (mPreviousDrawable == null) {
// If we don't already have a drawable, skip the exit-early test
// below; otherwise we might not end up setting the default image.
} else if (mPreviousDrawable != null
&& mPreviousDrawable instanceof BitmapDrawable
&& Arrays.equals(mCompressed, compressed)) {
// TODO: the worst case is when the arrays are equal but not
// identical. This takes about 1ms (more with high-res photos). A
// possible optimization is to sparsely sample chunks of the arrays
// to compare.
return previousBitmap();
}
final Drawable newDrawable = (compressed == null)
? defaultDrawable()
: decodedBitmapDrawable(compressed);
// Remember this for next time, so that we can check if it changed.
mCompressed = compressed;
// If we don't have a new Drawable, something went wrong... bail out.
if (newDrawable == null) return previousBitmap();
if (mPreviousDrawable == null || mDurationInMillis == 0) {
// Set the new one immediately.
mTarget.setImageDrawable(newDrawable);
} else {
// Set up a transition from the previous Drawable to the new one.
final Drawable[] beforeAndAfter = new Drawable[2];
beforeAndAfter[0] = mPreviousDrawable;
beforeAndAfter[1] = newDrawable;
final TransitionDrawable transition = new TransitionDrawable(beforeAndAfter);
mTarget.setImageDrawable(transition);
transition.startTransition(mDurationInMillis);
}
// Remember this for next time, so that we can transition from it to the
// new one.
mPreviousDrawable = newDrawable;
return previousBitmap();
}
private Bitmap previousBitmap() {
return (mPreviousDrawable == null) ? null
: mPreviousDrawable instanceof LetterTileDrawable ? null
: ((BitmapDrawable) mPreviousDrawable).getBitmap();
}
/**
* Obtain the default drawable for a contact when no photo is available. If this is a local
* contact, then use the contact's display name and lookup key (as a unique identifier) to
* retrieve a default drawable for this contact. If not, then use the name as the contact
* identifier instead.
*/
private Drawable defaultDrawable() {
Resources resources = mTarget.getResources();
DefaultImageRequest request;
int contactType = ContactPhotoManager.TYPE_DEFAULT;
if (mContact.isDisplayNameFromOrganization()) {
contactType = ContactPhotoManager.TYPE_BUSINESS;
}
if (TextUtils.isEmpty(mContact.getLookupKey())) {
request = new DefaultImageRequest(null, mContact.getDisplayName(), contactType,
false /* isCircular */);
} else {
request = new DefaultImageRequest(mContact.getDisplayName(), mContact.getLookupKey(),
contactType, false /* isCircular */);
}
return ContactPhotoManager.getDefaultAvatarDrawableForContact(resources, true, request);
}
private BitmapDrawable decodedBitmapDrawable(byte[] compressed) {
final Resources rsrc = mTarget.getResources();
Bitmap bitmap = BitmapFactory.decodeByteArray(compressed, 0, compressed.length);
if (bitmap.getHeight() != bitmap.getWidth()) {
// Crop the bitmap into a square.
final int size = Math.min(bitmap.getWidth(), bitmap.getHeight());
bitmap = ThumbnailUtils.extractThumbnail(bitmap, size, size);
}
return new BitmapDrawable(rsrc, bitmap);
}
}
|
