(Android)my11_dialog_대화상자

 

 

 private void showMessage() {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("안내");
        builder.setMessage("종료하시겠습니까?");
        builder.setIcon(android.R.drawable.ic_dialog_alert);

        builder.setPositiveButton("예", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                String message = "예 버튼이 눌렸습니다. : "+which;
                tvAlarm.setText(message);
            }
        });

        builder.setNegativeButton("아니오", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                String message = "아니오 버튼이 눌렸습니다. : "+which;
                tvAlarm.setText(message);
            }
        });

        builder.setNeutralButton("취소", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                String message = "취소 버튼이 눌렸습니다. : "+which;
                tvAlarm.setText(message);
            }
        });
        AlertDialog dialog = builder.create();
        dialog.show();
    }

 

-전체코드-

 

 -Main.xml-

 

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >


    <TextView
        android:id="@+id/tvAlarm"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_marginTop="69dp"
        android:gravity="center"
        android:text="버튼을 누르면 대화상자가 뜹니다"
        android:textSize="24dp" />

    <Button
        android:id="@+id/btnOpen"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tvAlarm"
        android:layout_alignParentStart="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:layout_marginStart="160dp"
        android:layout_marginLeft="160dp"
        android:layout_marginTop="92dp"
        android:layout_marginEnd="163dp"
        android:layout_marginRight="163dp"
        android:text="대화상자 열림" />
</RelativeLayout>

 

 

-Main.java-

package com.example.my11_dialog;

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

import android.content.DialogInterface;
import android.os.Bundle;
import android.provider.AlarmClock;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    Button btnOpen;
    TextView tvAlarm;

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

        tvAlarm = findViewById(R.id.tvAlarm);
        btnOpen = findViewById(R.id.btnOpen);
        btnOpen.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                showMessage();
            }


        });
    }
    private void showMessage() {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("안내");
        builder.setMessage("종료하시겠습니까?");
        builder.setIcon(android.R.drawable.ic_dialog_alert);

        builder.setPositiveButton("예", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                String message = "예 버튼이 눌렸습니다. : "+which;
                tvAlarm.setText(message);
            }
        });

        builder.setNegativeButton("아니오", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                String message = "아니오 버튼이 눌렸습니다. : "+which;
                tvAlarm.setText(message);
            }
        });

        builder.setNeutralButton("취소", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                String message = "취소 버튼이 눌렸습니다. : "+which;
                tvAlarm.setText(message);
            }
        });
        AlertDialog dialog = builder.create();
        dialog.show();










































    }
}