ExoPlayer Creator

An Android app that can create ExoPlayer 2 video players, HTML5 video players, and video players that play back what you recorded (called Camcorder players in-app) instantly, developed in MIT App Inventor, with a beta Flutter release, and an extremely early Media3 Kotlin demo.

ExoPlayer Creator primarily uses the ExoPlayer for App Inventor extension to create ExoPlayer initializations, and is a modified version of the 1.0.4 AIA version of the ExoPlayer for App Inventor demo.

Extensions	First Used
ExoPlayer for App Inventor	v1 and beyond
UpdateMyApp	v1.4.1
UrsAI2SideBar	v2.0

App Inventor Ver. Compatibility

ExoPlayer Creator has been tested on the following devices with the following results:

Device	Compatible?	Real Device/VM
Android 15	Yes	VM
Android 14	Yes	Real Device
Android 8	Yes	VM
Android 5	No	VM

Compatibility-wise, most versions of Android work just fine with the app, but if you're using Android 7 or below, note that I either haven't tested the app on those devices or the app failed to function as intended.

Make sure you have a WebView installed, or else the HTML5 player won't work because it relies on a WebView to display the player. This is important in VMs since unlike commercial devices they are meant more for developer purposes and thus lack some important tools, like the Play Store (some Android SDKs do not include it), WebViews, etc.

Issues (that can't really be fixed)

On Android 5, a severe codec issue happens when loading any video, in both ExoPlayer and the HTML5 player. This is most likely due to the fact that Android 5 does not support the latest video codecs.

And on any Android version, URLs that are signed using self-signed certificates return a source error in any video player in the app that supports using video URLs, this is normal behavior in Android and it cannot be fixed because Android does not allow bypassing this check.

Flutter Ver.

The Flutter version was built in Android Studio with the Flutter plugin, and primarily relies on the video_player and chewie plugins, uses the keep_screen_on plugin to keep screen active when playing a video, uses the file_picker plugin to pick a video and subtitle file on your device to play, and unlike the App Inventor version, uses a different UI standard, which is rendered with Skia, that looks similar to Material UI, but is using a completely different framework.

It uses ExoPlayer 2, just like the App Inventor version, but has less controls, but is simpler to use and much more user-friendly, and is solely ExoPlayer (at least, for now). It does not support a quality selector, or advanced audio settings, but it supports everything else the App Inventor version does in the ExoPlayer point of view (P.O.V).

Media3 Demo (Very Early Demo)

The Media3 Demo was built in Android Studio using Kotlin, and uses the Media3 Player app as a base for all Media3 support, and uses the traditional INTENT methods for URL redirects in Kotlin.

It, unlike the other 2 versions, is in a very early state right now and does not support video URLs (believe me, I tried, and failed), as of now. However, the placeholder video is the Big Buck Bunny short film, stored in a GCP (Google Cloud Protocol) storage bucket.