There are Two ways to achieve it.
1) Have to start the dialer via code, without user interaction.
You need Action_Dial, use below code it will open Dialer with number specified.
Intent intent = new Intent(Intent.ACTION_DIAL);
intent.setData(Uri.parse("tel:0123456789"));
startActivity(intent);
The 'tel:' prefix is required, otherwhise the following exception will be thrown:
java.lang.IllegalStateException: Could not execute method of the activity. Action_Dial doesn't require any permission. If you want to initiate the call directly without user's interaction , You can use action Intent.ACTION_CALL.
In this case, you must add the following permission in your AndroidManifest.xml:
<uses-permission android:name="android.permission.CALL_PHONE">
</uses-permission>2) Have user to click on Phone_Number string and start the call.
android:autoLink="phone"
You need to use TextView with below property.
android:autoLink="phone" android:linksClickable="true"
This is how you can open EditText label assigned number on dialer directly.
<TextView
android:id="@+id/phoneNumber"
android:autoLink="phone"
android:linksClickable="true"
android:text="+91 22 2222 2222"
/>
