建议写一个positionChanged的信号

[kaido1412]

在播放器播放时发送positionChanged信号，然后可以连接信号到槽函数实现根据视频进度更新滑块

[thyagarajarahul1]

I did this using a timer and it works.

[kaido1412]

Me too.

[kaido1412]

Why is the duration of mediaInfo 0 when it is played for the first time, and it is normal to replay it?

[wang-bin]

Use a timer and call Player.position() in your app.

set(State::Playing) is async, call mediaInfo() immediately may result in an invalid MediaInfo because video is not loaded. You can listen MediaStatus changes or use prepare() with a callback, and get duration when media is loaded or prepared. See https://github.com/wang-bin/mdk-examples/blob/master/Native/MediaInfoReader.cpp#L18