i can do something with videos?

when I put a video on the screen of the app, i looks normal, but when i use my emulator, the video is only a 10 or 20% of the shadow of the frame.

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are you using the videoplayer component?

how did you set its width and height? did you try to set to fill parent?

what happens, if you test using an Android device instead of the emulator?

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refer to: VideoWall for App Inventor 2

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