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How to set a particular font for a button text in Android using Kotlin?
This example demonstrates how to set a particular font for a button text 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.
Example
<?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:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_marginTop="50dp" android:text="Tutorials Point" android:textAlignment="center" android:textColor="@android:color/holo_green_dark" android:textSize="32sp" android:textStyle="bold" /> <Button android:id="@+id/btnChangeFont" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:text="Click to change font of the Button" /> <Button android:id="@+id/btnChangeFont2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/btnChangeFont" android:layout_centerInParent="true" android:layout_marginTop="10dp" android:text="Click to change font of the Button" /> </RelativeLayout>
Step 3 − Add the following code to src/MainActivity.kt
import android.graphics.Typeface import android.graphics.Typeface.BOLD_ITALIC import android.os.Bundle import android.widget.Button import androidx.appcompat.app.AppCompatActivity class MainActivity : AppCompatActivity() { lateinit var btnChangeFont: Button lateinit var btnChangeFont2: Button override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) title = "KotlinApp" btnChangeFont = findViewById(R.id.btnChangeFont) btnChangeFont.setOnClickListener { btnChangeFont.setTypeface(Typeface.MONOSPACE, Typeface.BOLD)} btnChangeFont2 = findViewById(R.id.btnChangeFont2) btnChangeFont2.setOnClickListener { btnChangeFont2.setTypeface(Typeface.SERIF, BOLD_ITALIC) } } }
Step 4 − 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 icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen
Click here to download the project code.
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