mobile/android/thirdparty/com/squareup/picasso/Target.java

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TOR_BUG_3246
changeset 4
fc2d59ddac77
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-1:000000000000 0:97cacba383f4
1 /*
2 * Copyright (C) 2013 Square, Inc.
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 package com.squareup.picasso;
17
18 import android.graphics.Bitmap;
19 import android.graphics.drawable.Drawable;
20
21 import static com.squareup.picasso.Picasso.LoadedFrom;
22
23 /**
24 * Represents an arbitrary listener for image loading.
25 * <p/>
26 * Objects implementing this class <strong>must</strong> have a working implementation of
27 * {@link #equals(Object)} and {@link #hashCode()} for proper storage internally. Instances of this
28 * interface will also be compared to determine if view recycling is occurring. It is recommended
29 * that you add this interface directly on to a custom view type when using in an adapter to ensure
30 * correct recycling behavior.
31 */
32 public interface Target {
33 /**
34 * Callback when an image has been successfully loaded.
35 * <p/>
36 * <strong>Note:</strong> You must not recycle the bitmap.
37 */
38 void onBitmapLoaded(Bitmap bitmap, LoadedFrom from);
39
40 /** Callback indicating the image could not be successfully loaded. */
41 void onBitmapFailed(Drawable errorDrawable);
42
43 /** Callback invoked right before your request is submitted. */
44 void onPrepareLoad(Drawable placeHolderDrawable);
45 }

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