AndroidVideoCache: A Java repository from lehoaibaovn

Video cache support for Android

Table of Content

Why AndroidVideoCache?
Features
Get started
Recipes
Known problems
Whats new
Code contributions
Where published?
Questions?
License

Why AndroidVideoCache?

Because there is no sense to download video a lot of times while streaming! AndroidVideoCache allows to add caching support to your VideoView/MediaPlayer, ExoPlayer or any another player with help of single line!

Features

caching to disk during streaming;
offline work with cached resources;
partial loading;
cache limits (max cache size, max files count);
multiple clients for same url.

Note AndroidVideoCache works only with direct urls to media file, it doesn't support any streaming technology like DASH, SmoothStreaming, HLS.

Get started

Just add dependency (AndroidVideoCache is available in jcenter):

repositories {
    jcenter()
}
dependencies {
    compile 'com.danikula:videocache:2.6.3'
}

and use url from proxy instead of original url for adding caching:

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

    HttpProxyCacheServer proxy = getProxy();
    String proxyUrl = proxy.getProxyUrl(VIDEO_URL);
    videoView.setVideoPath(proxyUrl);
}

private HttpProxyCacheServer getProxy() {
    // should return single instance of HttpProxyCacheServer shared for whole app.
}

To guarantee normal work you should use single instance of HttpProxyCacheServer for whole app. For example you can store shared proxy in your Application:

public class App extends Application {

    private HttpProxyCacheServer proxy;

    public static HttpProxyCacheServer getProxy(Context context) {
        App app = (App) context.getApplicationContext();
        return app.proxy == null ? (app.proxy = app.newProxy()) : app.proxy;
    }

    private HttpProxyCacheServer newProxy() {
        return new HttpProxyCacheServer(this);
    }
}

or use simple factory. More preferable way is use some dependency injector like Dagger.

Recipes

Disk cache limit

By default HttpProxyCacheServer uses 512Mb for caching files. You can change this value:

private HttpProxyCacheServer newProxy() {
    return new HttpProxyCacheServer.Builder(this)
            .maxCacheSize(1024 * 1024 * 1024)       // 1 Gb for cache
            .build();
}

or can limit total count of files in cache:

private HttpProxyCacheServer newProxy() {
    return new HttpProxyCacheServer.Builder(this)
            .maxCacheFilesCount(20)
            .build();
}

Listen caching progress

Use HttpProxyCacheServer.registerCacheListener(CacheListener listener) method to set listener with callback onCacheAvailable(File cacheFile, String url, int percentsAvailable) to be aware of caching progress. Do not forget to to unsubscribe listener with help of HttpProxyCacheServer.unregisterCacheListener(CacheListener listener) method to avoid memory leaks.

Use HttpProxyCacheServer.isCached(String url) method to check was url's content fully cached to file or not.

See sample app for more details.

Sample

See sample app.

Known problems

AndroidVideoCache doesn't work if wifi or mobile internet connection uses proxy.

Whats new

See Release Notes here

Code contributions

If it's a feature that you think would need to be discussed please open an issue first, otherwise, you can follow this process:

Fork the project
Create a feature branch (git checkout -b my_branch)
Fix a problem. Your code must contain test for reproducing problem. Your tests must be passed with help of your fix
Push your changes to your new branch (git push origin my_branch)
Initiate a pull request on github
Rebase master branch if your local branch is not actual. Merging is not acceptable, only rebase
Your pull request will be reviewed and hopefully merged :)

Where published?

Here

Questions?

danikula@gmail.com

License

Copyright 2014-2016 Alexey Danilov

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.

lehoaibaovn/AndroidVideoCache