Implicit Intent - Phone Call

MainActivity.java

intentPhoneCall.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                Intent intent = new Intent(Intent.ACTION_CALL);
                String phoneNumber = "1234567890";
                intent.setData(Uri.parse("tel:" + phoneNumber));
                if (intent.resolveActivity(getPackageManager()) != null) {
                    if (ActivityCompat.checkSelfPermission(MainActivity.this, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
                        if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this, Manifest.permission.READ_CONTACTS)) {

                        } else {
                            ActivityCompat.requestPermissions(MainActivity.this,
                                    new String[]{Manifest.permission.CALL_PHONE}, 1);
                            Toast.makeText(MainActivity.this, "You need to accept the permission to make a phone call.", Toast.LENGTH_SHORT).show();
                        }
                    } else {
                        startActivity(intent);
                    }
                }
            }
        });