Android Broadcast SDK

Link to the Source code here:

Welcome to UIZA Android BroadCast SDK

Simple Streaming at scale.

Uiza is the complete toolkit for building a powerful video streaming application with unlimited scalability. We design Uiza so simple that you only need a few lines of codes to start streaming, but sophisticated enough for you to build complex products on top of it.

Read CHANGELOG here.

Importing the Library

Step 1. Add the JitPack repository to your build.gradle file

    allprojects {
          repositories {
             maven { url '' }

Step 2. Add the dependency

    dependencies {
        implementation 'com.github.uizaio:uiza-android-broadcast-sdk:1.x.x'

Get latest release number HERE.

Turn on Java 8 support

If not enabled already, you need to turn on Java 8 support in all build.gradle files depending on ExoPlayer, by adding the following to the android section:

compileOptions {
  targetCompatibility JavaVersion.VERSION_1_8

Init SDK

. If you want show log, install any Tree instances you want in the onCreate of your application class

if (BuildConfig.DEBUG) {
        Timber.plant(new Timber.DebugTree());

How to broadcast with UZBroadCast?:

It's very easy, plz follow these steps below to implement:


    app:runInBackground="true" # support camera2 only
    app:useCamera2="true" />

In class UZBroadCastActivity:

    public class UZBroadCastActivity extends AppCompatActivity implements UZBroadCastListener {
        // ...

In onCreate():

    getWindow().setFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON, WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED, WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED);
    uzBroadCast = (UZBroadCastView) findViewById(;

In onResume():

    protected void onResume() {

Start a Stream: see VideoAttributes and AudioAttributes

    uzBroadCast.setVideoAttributes(VideoAttributes videoAttrs);
    uzBroadCast.setAudioAttributes(AudioAttributes audioAttrs);
    if (uzBroadCast.prepareBroadCast()) {


    if (uzBroadCast.prepareBroadCast(AudioAttributes audioAttrs, VideoAttributes videoAttrs, boolean isLandscape)) {

Stop streaming (It auto saves mp4 file in your gallery if you start a broadcast with option save local file)


Switch camera:


In case runInBackground = false But you want to allows streaming again after back from background:

    uzBroadCast.setBackgroundAllowedDuration(YOUR_ALLOW_TIME); // default time is 2 minutes

This sample help you know how to use all Uiza SDK for livestream, please refer to THIS

How to broadcast your screen?

See example in class UZDisplayActivity:

For contributors

Uiza Checkstyle configuration is based on the Google coding conventions from Google Java Style that can be found at here.

Your code must be followed the rules that defined in our uiza_style.xml rules

You can setting the rules after import project to Android Studio follow below steps:

  1. File > Settings > Editor > Code Style

  2. Right on the Scheme, select the setting icon > Import Scheme > Intellij IDEA code style XML

  3. Select the uiza_style.xml file path

  4. Click Apply > OK, then ready to go

For apply check style, install CheckStyle-IDEA plugin, then

  1. File > Settings > Other Settings > Checkstyle

  2. In Configuration file, select the + icon

  3. Check Use local checkstyle file & select path to uiza_check.xml file

  4. Select OK & you're ready to go

To run checkstyle for project

  1. Right click on project

  2. Select Analyze > Inspect Code


API Reference

Supported devices

Support all devices which have Android 5.0 (API level 21) above. For a given use case, we aim to support UizaSDK on all Android devices that satisfy the minimum version requirement.

Note: Some Android emulators do not properly implement components of Android’s media stack, and as a result do not support UizaSDK. This is an issue with the emulator, not with UizaSDK. Android’s official emulator (“Virtual Devices” in Android Studio) supports UizaSDK provided the system image has an API level of at least 23. System images with earlier API levels do not support UizaSDK. The level of support provided by third party emulators varies. Issues running UizaSDK on third party emulators should be reported to the developer of the emulator rather than to the UizaSDK team. Where possible, we recommend testing media applications on physical devices rather than emulators.


If you've found an error in this sample, please file an issue

Patches are encouraged, and may be submitted by forking this project and submitting a pull request through GitHub. Please feel free to contact me anytime: for more details.

Address: 33 Ubi Avenue 3 #08- 13, Vertex Tower B, Singapore 408868 Email: Website:


UizaSDK is released under the BSD license. See LICENSE for details.

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