Screen blinking on each refresh

[miolini]

Hello! When I refresh data on the screen via ui.Render(...) I see blinking. How can I avoid this?

[ghost]

I currently have this very same problem. Is there a way to for example "slow down" the number of refreshes commands the ui can receive every second so that there is less stuttering ?

Say a way to make all event handles "inactive" for x milliseconds ?

[joesixpack]

This bug is still happening.

[SeungheonOh]

Maybe by not clearing screen on every render but only clearing widget area might improve on blinking

edit) that is how it is now hmm

[SeungheonOh]

Update, I was able to fix blinking entirely. The reason behind it was ui.TerminalDimensions(), or termbox.sync() So, I stored terminal dimension instead of requesting everything.

[Reeceeboii]

I have been having this same issue in my project - Pi-CLI. Turns out in my own draw function, I was checking for the terminal dimensions and resizing. This means there was a grid redraw every single time the main draw function was called. This is unnecessary.

Putting all of the resize code into the <Resize> event and only resizing if a <Resize> event is received from the uiEvents channel fixed it for me. No more flickering/flashing.

	uiEvents := ui.PollEvents()

	for {
		select {
		case e := <-uiEvents:
			switch e.ID {

			// respond to terminal resize events
			case "<Resize>":
				payload := e.Payload.(ui.Resize)
			        grid.SetRect(0, 0, payload.Width, payload.Height)
			        ui.Render(grid)
			        break
			}

		// refresh event
		case <-ticker:
			draw() // IN NO WAY RESPONSIBLE FOR RESIZING THE GRID
		}
	}