[AndroidStudio] 버튼 클릭 이벤트 (Toast, Intent.ACTION_VIEW)

 

activity_main.xml

<?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="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="onButton1Clicked"
        android:text="확인 1"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="onButton2Clicked"
        android:text="네이버 접속하기"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/button" />

    <Button
        android:id="@+id/button3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="onButton3Clicked"
        android:text="전화걸기"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/button2" />
</androidx.constraintlayout.widget.ConstraintLayout>

 

MainActivity.java

package org.techtown.hello;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

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

    public void onButton1Clicked(View v){
        Toast.makeText(this, "확인1 버튼이 눌렸어요.", Toast.LENGTH_LONG).show();
    }

    //네이버 접속하기 클릭
    public void onButton2Clicked(View v){
        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://m.naver.com"));
        startActivity(intent);
    }

    //전화걸기 클릭
    public void onButton3Clicked(View v){
        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("tel:010-1000-1000"));
        startActivity(intent);
    }
}

 

애뮬레이터 화면

 

확인1 클릭시

 

네이버 접속하기 클릭시

 

전화걸기 클릭시