No need to explicitly hide the cursor in no-cursor primitives.

application.go

@@ -244,6 +244,9 @@ func (a *Application) SetFocus(p Primitive) *Application {
 		a.focus.Blur()
 	}
 	a.focus = p
+	if a.screen != nil {
+		a.screen.HideCursor()
+	}
 	a.Unlock()
 	p.Focus(func(p Primitive) {
 		a.SetFocus(p)

button.go

@@ -115,10 +115,6 @@ func (b *Button) Draw(screen tcell.Screen) {
 		}
 		Print(screen, b.label, x, y, width, AlignCenter, labelColor)
 	}
-
-	if b.focus.HasFocus() {
-		screen.HideCursor()
-	}
 }
 
 // InputHandler returns the handler for this primitive.

checkbox.go

@@ -138,11 +138,6 @@ func (c *Checkbox) Draw(screen tcell.Screen) {
 		checkedRune = ' '
 	}
 	screen.SetContent(x, y, checkedRune, nil, fieldStyle)
-
-	// Hide cursor.
-	if c.focus.HasFocus() {
-		screen.HideCursor()
-	}
 }
 
 // InputHandler returns the handler for this primitive.

doc.go

@@ -2,6 +2,33 @@
 Package tview implements primitives for terminal based applications. It uses
 github.com/gdamore/tcell.
 
+Hello World
+
+Here is a very basic example showing a box with the title "Hello, world!":
+
+  package main
+
+  import (
+  	"github.com/rivo/tview"
+  )
+
+  func main() {
+  	box := tview.NewBox().SetBorder(true).SetTitle("Hello, world!")
+  	if err := tview.NewApplication().SetRoot(box, true).Run(); err != nil {
+  		panic(err)
+  	}
+  }
+
+First, we create a box primitive with a border and a title. Then we create an
+application, set the box as its root primitive, and run the event loop. It
+exits when the application's Stop() function is called or when Ctrl-C is
+pressed.
+
+If we have a primitive which consumes key presses, we call the application's
+SetFocus() function to redirect all key presses to that primitive. Most
+primitives then offer ways to install handlers that allow you to react to any
+actions performed on them.
+
 No mouse input (yet).
 */
 package tview

dropdown.go

@@ -231,11 +231,6 @@ func (d *DropDown) Draw(screen tcell.Screen) {
 		d.list.SetRect(lx, ly, lwidth, lheight)
 		d.list.Draw(screen)
 	}
-
-	// No cursor for this primitive.
-	if d.focus.HasFocus() {
-		screen.HideCursor()
-	}
 }
 
 // InputHandler returns the handler for this primitive.