Android Call , Message, WhatsApp Intent Button

 Xml file

<Button
    android:id="@+id/call"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Call"
    android:onClick="call"/>

<Button
    android:id="@+id/msg"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Message"
    android:onClick="sendmsg" />


<Button
    android:id="@+id/wabtn"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="WhatsApp"
    android:onClick="wabtn"/>

Activity Kt file

fun call(view: View) {
    val dialIntent = Intent(Intent.ACTION_DIAL)
    dialIntent.data = Uri.parse("tel:" + "+88018123456789")
    startActivity(dialIntent)
}
fun sendmsg(view: View) {
    val intent = Intent(Intent.ACTION_SENDTO)
    intent.data = Uri.parse("smsto:+88018123456789")
    startActivity(intent)
}

fun wabtn(view: View) {
    val intent = Intent(Intent.ACTION_VIEW)
    intent.data = Uri.parse("whatsapp://send?phone=+88018123456789")
    startActivity(intent)
}



AndroidManifest.xml
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />