எவ்வாறு Android Studio யில் Phone Call ஒன்றை உள்ளீடு செய்வது ?

1. app > manifests க்கு சென்று  (<uses-permission android:name="android.permission.CALL_PHONE" />) Code ஐ உள்ளீடு செய்யுங்கள்.

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="mit.solution.apps">
    <uses-permission android:name="android.permission.CALL_PHONE" />

    <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/Theme.AndroidStudioTutorial">
        <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>

2. app > res > layout> activity_main க்கு சென்று கீழே தரப்பட்டுள்ள Code ஐ உள்ளீடு செய்யுங்கள்.

<?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:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical">


    <ImageView
        android:id="@+id/imageView"
        android:layout_width="293dp"
        android:layout_height="208dp"
        android:layout_marginTop="12dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.497"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView"
        app:srcCompat="@drawable/logo" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Mac IT Solution"
        android:textColor="@color/black"
        android:textSize="25dp"
        android:textStyle="bold"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Call Now"
        android:textColor="@color/black"
        android:textSize="20dp"
        android:textStyle="bold"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/imageView" />

    <ImageButton
        android:id="@+id/call_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView2"
        app:layout_constraintVertical_bias="0.06999999"
        app:srcCompat="@android:drawable/ic_menu_call" />


</androidx.constraintlayout.widget.ConstraintLayout>

3. app > java > main> MainActivityக்கு சென்று கீழே தரப்பட்டுள்ள Code ஐ உள்ளீடு செய்யுங்கள்.

package mit.solution.apps;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;

import android.Manifest;
import android.annotation.SuppressLint;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageButton;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import static android.net.wifi.WifiConfiguration.Protocol.strings;

public class MainActivity extends AppCompatActivity {

    ImageButton CallBtn;
    public static final int ALL_PERMISSIONS = 192;
    private static final String TAG = "HomeActivity";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        CallBtn = findViewById(R.id.call_btn);

      CallBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                onCall();

            }
        });

    }

    public void onCall() {

        //your mobile number
        if (checkAndRequestPermissions()) {
            startActivity(new Intent(Intent.ACTION_CALL).setData(Uri.parse("tel:" + "+94758804007")));
        }
    }
    private  boolean checkAndRequestPermissions() {
        int permissionCall = ContextCompat.checkSelfPermission(this, Manifest.permission.CALL_PHONE);
        List<String> listPermissionsNeeded = new ArrayList<>();
        if (permissionCall != PackageManager.PERMISSION_GRANTED) {
            listPermissionsNeeded.add(Manifest.permission.CALL_PHONE);
        }
        if (!listPermissionsNeeded.isEmpty()) {
            ActivityCompat.requestPermissions(this, listPermissionsNeeded.toArray(new String[listPermissionsNeeded.size()]), ALL_PERMISSIONS);
            return false;
        }
        return true;
    }


}