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Java/Android2020. 5. 18. 14:35[안드로이드 기본] 옵션메뉴 만들기
activity_main.xml MainActiviy.java package com.example.optionmenu2; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.widget.Toast; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(save..