In Form, changed GetElement() to GetFormItem() for consistency reasons.

demos/unicode/main.go

@@ -17,8 +17,8 @@ func main() {
 		AddCheckbox("年龄 18+", false, nil).
 		AddPasswordField("密码", "", 10, '*', nil).
 		AddButton("保存", func() {
-			_, title := form.GetElement(0).(*tview.DropDown).GetCurrentOption()
-			userName := form.GetElement(1).(*tview.InputField).GetText()
+			_, title := form.GetFormItem(0).(*tview.DropDown).GetCurrentOption()
+			userName := form.GetFormItem(1).(*tview.InputField).GetText()
 
 			alert(pages, "alert-dialog", fmt.Sprintf("保存成功，%s %s！", userName, title))
 		}).

form.go

@@ -191,10 +191,10 @@ func (f *Form) AddButton(label string, selected func()) *Form {
 	return f
 }
 
-// GetElement returns the form element at the given position, starting with
+// GetFormItem returns the form element at the given position, starting with
 // index 0. Elements are referenced in the order they were added. Buttons are
 // not included.
-func (f *Form) GetElement(index int) Primitive {
+func (f *Form) GetFormItem(index int) FormItem {
 	return f.items[index]
 }