Enhance Kotlin UI test accordion content (#4296)

Author: shai-almog

scripts/hellocodenameone/common/src/main/kotlin/com/codenameone/examples/hellocodenameone/tests/KotlinUiTest.kt

@@ -4,18 +4,52 @@ import com.codename1.components.Accordion
 import com.codename1.components.MultiButton
 import com.codename1.components.Switch
 import com.codename1.ui.Button
+import com.codename1.ui.CheckBox
+import com.codename1.ui.Container
+import com.codename1.ui.Label
+import com.codename1.ui.Slider
+import com.codename1.ui.TextArea
+import com.codename1.ui.TextField
 import com.codename1.ui.layouts.BoxLayout
 
 class KotlinUiTest : BaseTest() {
     override fun runTest(): Boolean {
-        var kotlinForm = createForm("Kotlin", BoxLayout.y(), "kotlin")
-        kotlinForm.add(Button("Kotlin Button"))
-        var on = Switch()
-        on.setOn()
-        kotlinForm.add(BoxLayout.encloseX(Switch(), on))
-        var acc = Accordion()
-        acc.add(MultiButton("MultiButton Line 1"))
-        kotlinForm.add(acc);
+        val kotlinForm = createForm("Kotlin", BoxLayout.y(), "kotlin")
+        kotlinForm.addAll(
+                Label("Kotlin UI Test Components"),
+                Button("Kotlin Button"),
+                BoxLayout.encloseX(Switch(), Switch().apply { setOn() }),
+                TextField("", "Enter name"),
+                Slider().apply {
+                    isEditable = true
+                    progress = 50
+                }
+        )
+
+        val accordion = Accordion()
+        accordion.addContent("Details", BoxLayout.encloseY(
+                MultiButton("MultiButton Line 1").apply {
+                    setTextLine2("Additional detail line")
+                },
+                MultiButton("MultiButton Line 2").apply {
+                    setTextLine2("More detail for Kotlin UI")
+                }
+        ))
+
+        val preferences = Container(BoxLayout.y())
+        preferences.addAll(
+                CheckBox("Enable notifications"),
+                Switch().apply { setOn() },
+                TextArea(3, 20).apply { hint = "Add a short note" }
+        )
+        accordion.addContent("Preferences", preferences)
+
+        accordion.addContent("Summary", BoxLayout.encloseY(
+                Label("Accordion showcases grouped UI"),
+                Button("Confirm Settings")
+        ))
+
+        kotlinForm.add(accordion)
         kotlinForm.show()
         return true
     }