app/src/main/java/com/example/lab_9/EmailActivity.java - master - Kulechek/Lab_9

app/src/main/java/com/example/lab_9/EmailActivity.java
78 строк3 KB
Temnikov Konstantin
25 апр 2025, 14:37
25 апр 2025, 14:37ca2a451
package com.example.lab_9;

import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.text.TextUtils;
import android.widget.EditText;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

public class EmailActivity extends AppCompatActivity {
    private EditText emailTo;
    private EditText emailSubject;
    private EditText emailMessage;

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

        emailTo       = findViewById(R.id.emailTo);
        emailSubject  = findViewById(R.id.emailSubject);
        emailMessage  = findViewById(R.id.emailMessage);

        findViewById(R.id.buttonClear).setOnClickListener(v -> clearFields());
        findViewById(R.id.buttonSend).setOnClickListener(v -> prepareAndSendEmail());
    }

    private void clearFields() {
        emailTo.setText("");
        emailSubject.setText("");
        emailMessage.setText("");
    }

    private void prepareAndSendEmail() {
        String to      = emailTo.getText().toString().trim();
        String subject = emailSubject.getText().toString().trim();
        String body    = emailMessage.getText().toString().trim();

        if (!validateEmail(to)) {
            Toast.makeText(this, "Введите корректный адрес электронной почты", Toast.LENGTH_SHORT).show();
            return;
        }
        if (TextUtils.isEmpty(subject)) {
            Toast.makeText(this, "Введите тему письма", Toast.LENGTH_SHORT).show();
            return;
        }
        if (TextUtils.isEmpty(body)) {
            Toast.makeText(this, "Введите текст сообщения", Toast.LENGTH_SHORT).show();
            return;
        }

        sendEmailIntent(to, subject, body);
    }

    private boolean validateEmail(String email) {
        return !TextUtils.isEmpty(email) &&
                android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches();
    }

    private void sendEmailIntent(String to, String subject, String body) {
        Intent intent = new Intent(Intent.ACTION_SENDTO);
        intent.setData(Uri.parse("mailto:"));
        intent.putExtra(Intent.EXTRA_EMAIL, new String[]{ to });
        intent.putExtra(Intent.EXTRA_SUBJECT, subject);
        intent.putExtra(Intent.EXTRA_TEXT, body);

        try {
            startActivity(Intent.createChooser(intent, "Выберите почтовый клиент"));
        } catch (ActivityNotFoundException e) {
            Toast.makeText(this,
                    "Не найдено приложение для отправки почты",
                    Toast.LENGTH_LONG).show();
        }
    }
}