How to change the Text color of Menu item in Android using Kotlin?

Kotlin AndroidApps/ApplicationsMobile Development

This example demonstrates how to change the Text color of Menu item in Android using Kotlin.

Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.

Step 2 − Add the following code to res/layout/activity_main.xml.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:tools="http://schemas.android.com/tools"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   tools:context=".MainActivity">
   <TextView
      android:id="@+id/textView"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_centerHorizontal="true"
      android:layout_marginTop="70dp"
      android:background="#008080"
      android:padding="5dp"
      android:text="TutorialsPoint"
      android:textColor="#fff"
      android:textSize="24sp"
      android:textStyle="bold" />
   <TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_centerInParent="true"
      android:text="Changing Option Menu Background and text Color"
      android:textAlignment="center"
      android:textColor="@android:color/holo_orange_dark"
      android:textSize="24sp"
      android:textStyle="bold" />
</RelativeLayout>

Step 3 − Add the following code to res/menu/menu_items.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:app="http://schemas.android.com/apk/res-auto">
   <item
      android:id="@+id/option_menu_item_1"
      android:orderInCategory="1"
      android:title="Menu 1"
      app:showAsAction="never" />
   <item
      android:id="@+id/option_menu_item_2"
      android:orderInCategory="2"
      android:title="Menu 2"
      app:showAsAction="never" />
   <item
      android:id="@+id/option_menu_item_3"
      android:orderInCategory="3"
      android:title="Menu 3"
      app:showAsAction="never" />
</menu>

Step 4 − Add the following code to res/values/styles.xml

<resources>
   <!-- Base application theme. -->
   <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
      <!-- Customize your theme here. -->
      <item name="colorPrimary">@color/colorPrimary</item>
      <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
      <item name="colorAccent">@color/colorAccent</item>
      <item name="android:itemBackground">@color/skyBlue</item>
      <item name="android:textColor">#ff000f</item>
   </style>
</resources>

Step 5 − Add the following code to res/values/colors.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
   <color name="colorPrimary">#6200EE</color>
   <color name="colorPrimaryDark">#3700B3</color>
   <color name="colorAccent">#03DAC5</color>
   <color name="skyBlue">#87CEEB</color>
</resources>

Step 6 − Add the following code to src/MainActivity.kt

import android.os.Bundle
import android.view.Menu
import android.view.MenuItem
import androidx.appcompat.app.AppCompatActivity
class MainActivity : AppCompatActivity() {
   override fun onCreate(savedInstanceState: Bundle?) {
      super.onCreate(savedInstanceState)
      setContentView(R.layout.activity_main)
      title = "KotlinApp"
   }
   override fun onCreateOptionsMenu(menu: Menu?): Boolean {
      menuInflater.inflate(R.menu.menu, menu)
      return true
   }
   override fun onOptionsItemSelected(item: MenuItem): Boolean {
      return when (item.itemId) {
         R.id.option_menu_item_1 -> true
         R.id.option_menu_item_2 -> true
         R.id.option_menu_item_3 -> true
         else -> super.onOptionsItemSelected(item)
      }
   }
}

Step 7 − Add the following code to androidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
   package="com.example.q11">
   <application
      android:allowBackup="true"
      android:icon="@mipmap/ic_launcher"
      android:label="@string/app_name"
      android:roundIcon="@mipmap/ic_launcher_round"
      android:supportsRtl="true"
      android:theme="@style/AppTheme">
      <activity android:name=".MainActivity">
         <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
         </intent-filter>
      </activity>
   </application>
</manifest>

Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click the Run Play Icon icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen

raja
Published on 18-Aug-2020 11:23:58
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