Android Question Exoplayer example that switches orientation

stp · Aug 17, 2025

I searched the forum to find a solution for changing orientation on exoplayer.
Nothing works. Any help?
I tested Erel's example and all works fine: https://www.b4x.com/android/forum/threads/b4a-v13-0-beta-is-available-for-download.162136/
In previous post i was capable to play back also m3u8 files. https://www.b4x.com/android/forum/threads/how-can-i-playback-m3u8-files-links.167532/#post-1027133
Now i searching for a solution to rotate my screen so video fills whole screen. Thank you

teddybear · Aug 17, 2025

Is this the solution you are searching?

stp · Aug 17, 2025

teddybear said:
Is this the solution you are searching?

I downloaded that example and tried. As long i click on fullscreen (top right icon on exoplayer) the app crached!!
Did you try that example?

teddybear · Aug 17, 2025

Yes, I did, it works

stp · Aug 17, 2025

teddybear said:
Yes, I did, it works

I run it in debug mode.. As soon i click on fulscreen i get an error on line 31 "Error occurred on line: 31 (FullScreen)"
and that is the error

B4X:

** Activity (fullscreen) Create (first time) **
Error occurred on line: 31 (FullScreen)
java.lang.ClassNotFoundException: androidx$media3$ui$PlayerView
    at anywheresoftware.b4j.object.JavaObject.getCorrectClassName(JavaObject.java:289)
    at anywheresoftware.b4j.object.JavaObject.InitializeStatic(JavaObject.java:75)
    at b4a.example.fullscreen._switchtargetplayerview(fullscreen.java:406)
    at b4a.example.fullscreen._activity_create(fullscreen.java:378)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:351)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:157)
    at b4a.example.fullscreen.afterFirstLayout(fullscreen.java:105)
    at b4a.example.fullscreen.access$000(fullscreen.java:17)
    at b4a.example.fullscreen$WaitForLayout.run(fullscreen.java:83)
    at android.os.Handler.handleCallback(Handler.java:938)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loopOnce(Looper.java:210)
    at android.os.Looper.loop(Looper.java:299)
    at android.app.ActivityThread.main(ActivityThread.java:8319)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:556)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1038)

i tried a lot of examples that i found here in the forum. After the failure i posted for help

teddybear · Aug 17, 2025

stp said:
I tested Erel's example and all works fine: https://www.b4x.com/android/forum/threads/b4a-v13-0-beta-is-available-for-download.162136/

Installing B4A v13.4, ExoPlayer is an internal library

stp · Aug 17, 2025

teddybear said:
Installing B4A v13.4, ExoPlayer is an internal library

I run 13.30 Version

teddybear · Aug 17, 2025

stp said:
I run 13.30 Version

see here

Android Question Exoplayer example that switches orientation

stp

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teddybear

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stp

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stp

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stp

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