aboutsummaryrefslogtreecommitdiff
path: root/ui/graphics/DisplayingBitmaps/README.md
blob: 5fbe8dcffc076b9d0b259c787f010f6b9df9f2c0 (plain)
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

Android DisplayingBitmaps Sample
===================================

Sample demonstrating how to load large bitmaps efficiently off the main UI thread,
caching bitmaps (both in memory and on disk), managing bitmap memory and displaying
bitmaps in UI elements such as ViewPager and ListView/GridView.

Introduction
------------

This is a sample application for the Android Training class [Displaying Bitmaps Efficiently][1].

It demonstrates how to load large bitmaps efficiently off the main UI thread, caching
bitmaps (both in memory and on disk), managing bitmap memory and displaying bitmaps
in UI elements such as ViewPager and ListView/GridView.

[1]: http://developer.android.com/training/displaying-bitmaps/

Pre-requisites
--------------

- Android SDK 28
- Android Build Tools v28.0.3
- Android Support Repository

Screenshots
-------------

<img src="screenshots/1-gridview.png" height="400" alt="Screenshot"/> <img src="screenshots/2-detail.png" height="400" alt="Screenshot"/> 

Getting Started
---------------

This sample uses the Gradle build system. To build this project, use the
"gradlew build" command or use "Import Project" in Android Studio.

Support
-------

- Google+ Community: https://plus.google.com/communities/105153134372062985968
- Stack Overflow: http://stackoverflow.com/questions/tagged/android

If you've found an error in this sample, please file an issue:
https://github.com/googlesamples/android-DisplayingBitmaps

Patches are encouraged, and may be submitted by forking this project and
submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.

License
-------

Copyright 2019 The Android Open Source Project, Inc.

Licensed to the Apache Software Foundation (ASF) under one or more contributor
license agreements.  See the NOTICE file distributed with this work for
additional information regarding copyright ownership.  The ASF licenses this
file to you 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.