action call example android

different files

AndroidManifest.xml:

...
 <uses-feature
        android:name="android.hardware.telephony"
        android:required="false" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
...

==========================================================================================

MainActivity.java:

package com.sunmeat.call;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Bundle;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;

public class MainActivity extends AppCompatActivity {

    private static final int REQUEST_CALL_PHONE_PERMISSION = 1;
    private String phoneNumber = "tel:" + "+380630300123";

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

        Intent dialIntent = new Intent(Intent.ACTION_CALL, Uri.parse(phoneNumber));

        if (ContextCompat.checkSelfPermission(this, Manifest.permission.CALL_PHONE) == PackageManager.PERMISSION_GRANTED) {
            startActivity(dialIntent);
        } else {
            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CALL_PHONE}, REQUEST_CALL_PHONE_PERMISSION);
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        if (requestCode == REQUEST_CALL_PHONE_PERMISSION) {
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                Intent dialIntent = new Intent(Intent.ACTION_CALL, Uri.parse(phoneNumber));
                startActivity(dialIntent);
            } else {
                Toast.makeText(this, "разрешение не получено, очень жаль", Toast.LENGTH_SHORT).show();
            }
        }
    }
}