2024/12/05 app

MainActivity.java

package com.example.dialogapp;

import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;

import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

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

        Button button =(Button) findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener(){
            public void onClick(View v) {
                String listItems[] = {"Android", "AKotlin", "Java"};
                boolean checked[]={false,false,false};
                AlertDialog.Builder alertDlg = new AlertDialog.Builder(MainActivity.this);

                //alertDlg.setTitle("프로그램 종료");
                alertDlg.setTitle("Choice lang");
                alertDlg.setMultiChoiceItems(listItems, checked, new DialogInterface.OnMultiChoiceClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which, boolean isChecked) {
                        checked[which]=isChecked;
                        Toast.makeText(MainActivity.this, listItems[which] + ":" + isChecked, Toast.LENGTH_SHORT).show();
                    }
                });
                //alertDlg.setMessage("앱을 종료하시겠습니까?");
                alertDlg.setSingleChoiceItems(listItems, 0, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this, listItems[which], Toast.LENGTH_SHORT).show();
                    }
                });

                alertDlg.setPositiveButton("닫기", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                });
                alertDlg.setNegativeButton("아니오", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this, listItems[which],Toast.LENGTH_SHORT).show();
                        dialog.cancel();
                    }
                });

                alertDlg.show();
            }
        });
    }
}

package com.example.dialogapp;

import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;

import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    int selectItem = 0;

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

        Button button =(Button) findViewById(R.id.button);
        ImageView img = findViewById(R.id.imageView);
        TextView txt = findViewById(R.id.textView);

        button.setOnClickListener(new View.OnClickListener(){
            public void onClick(View v) {
                String listItems[] = {"나무", "도넛", "비스켓"};
                AlertDialog.Builder alertdlg = new AlertDialog.Builder(MainActivity.this);

                alertdlg.setTitle("choice image");
                alertdlg.setSingleChoiceItems(listItems, 0, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        selectItem = which;
                    }
                });
                alertdlg.setPositiveButton("yes", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        if(selectItem == 0) {
                            img.setImageResource(R.drawable.shape05);
                        } else if (selectItem == 1) {
                            img.setImageResource(R.drawable.shape01);
                        } else if (selectItem == 2) {
                            img.setImageResource(R.drawable.shape03);
                        }
                        txt.setText(listItems[selectItem]);
                    }
                });
                alertdlg.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.cancel();
                    }
                });
                alertdlg.show();
            }
        });
    }
}