MainActivity.kt
package com.example.jetpack
import android.graphics.Color
import android.os.Build
import android.os.Bundle
import android.widget.PopupMenu
import androidx.appcompat.app.AppCompatActivity
import kotlinx.android.synthetic.main.activity_main.*
import java.lang.reflect.Method
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
// show sdk version in text view
textView.append("\nAPI " + Build.VERSION.SDK_INT)
// text view click listener
textView.setOnClickListener {
showPopupMenu()
}
}
// method to show popup menu
private fun showPopupMenu(){
val popup = PopupMenu(this,textView)
popup.apply {
// inflate the popup menu
menuInflater.inflate(R.menu.popup_menu,menu)
// popup menu item click listener
setOnMenuItemClickListener {
when(it.itemId){
R.id.red->{
textView.setTextColor(Color.RED)
}R.id.green->{
textView.setTextColor(Color.GREEN)
}R.id.yellow->{
textView.setTextColor(Color.YELLOW)
}R.id.gray->{
textView.setTextColor(Color.GRAY)
}
}
false
}
}
// show icons on popup menu
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
popup.setForceShowIcon(true)
}else{
try {
val fields = popup.javaClass.declaredFields
for (field in fields) {
if ("mPopup" == field.name) {
field.isAccessible = true
val menuPopupHelper = field[popup]
val classPopupHelper =
Class.forName(menuPopupHelper.javaClass.name)
val setForceIcons: Method = classPopupHelper.getMethod(
"setForceShowIcon",
Boolean::class.javaPrimitiveType
)
setForceIcons.invoke(menuPopupHelper, true)
break
}
}
} catch (e: Exception) {
e.printStackTrace()
}
}
// finally, show the popup menu
popup.show()
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/constraintLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<com.google.android.material.textview.MaterialTextView
android:id="@+id/textView"
style="@style/TextAppearance.MaterialComponents.Headline4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="32dp"
android:layout_marginEnd="11dp"
android:text="Show Popup Menu"
android:background="#F6F6F2"
android:padding="5dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
res/menu/popup_menu.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@+id/red"
android:title="Red"
android:icon="@drawable/ic_camera"
android:iconTint="#F44336"
android:iconTintMode="src_in"
/>
<item
android:id="@+id/green"
android:title="Green"
android:icon="@drawable/ic_donut_large"
android:iconTint="#4CAF50"
android:iconTintMode="src_in"
/>
<item
android:id="@+id/yellow"
android:title="Yellow"
android:icon="@drawable/ic_dock"
android:iconTint="#FFEB3B"
android:iconTintMode="src_in"
/>
<item
android:id="@+id/gray"
android:title="Gray"
android:icon="@drawable/ic_add_circle"
android:iconTint="#707070"
android:iconTintMode="src_in"
/>
</menu>



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