Day 106 : 버튼을 누르면 Toast 식빵처럼 알림 발생

pancakemaker 2022. 3. 22. 11:23

2022. 3. 22. 11:23

- activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/button1"
        android:text="@string/strBtn1"
        ></Button>
    <!-- strings.xml에 strBtn1 변수 생성 -->

</LinearLayout>

- strings.xml

<resources>
    <string name="app_name">BaseApp</string>
    <string name="strBtn1">버튼입니다.</string>
</resources>

- MainActivity.java

package com.cookandroid.baseapp;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    Button button1; //button1 변수이름 -> activity_main.xml에서 지정함

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button1 = (Button) findViewById(R.id.button1);

        button1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Toast.makeText(getApplicationContext(), "버튼을 눌렀어요", Toast.LENGTH_SHORT).show();
            }
        });
    }
}