구성요소
1. Title - 제목
2. Content - 문자열, 리스트, 커스텀레이아웃
3. Button - Posive(긍정), Negative(부정), Neutral(애매한)
xml
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<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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="com.example.smat_501.tutorial3.MainActivity">
<Button
android:id="@+id/listButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="리스트"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.034" />
<Button
android:id="@+id/exitButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="종료"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.965" />
</android.support.constraint.ConstraintLayout>
| cs |
Java
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package com.example.smat_501.tutorial3;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
private String[] items = {"망고 쥬스", "토마토 쥬스", "포도 쥬스"};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// listButton객체 생성
Button listButton = (Button) findViewById(R.id.listButton);
// 클릭 이벤트
listButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// AlertDialog
// 구성요소는 3가지
// 1. Title - 제목
// 2. Content - 문자열, 리스트, 커스텀레이아웃
// 3. Button - Posive(긍정), Negative(부정), Neutral(연기)
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle("리스트");
builder.setItems(items, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(), items[i], Toast.LENGTH_SHORT).show();
}
});
AlertDialog alertDialog = builder.create();
alertDialog.show();
}
});
Button exitButton = (Button) findViewById(R.id.exitButton);
exitButton.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setMessage("정말로 종료하시겠습니까?");
builder.setTitle("종료 알림창")
.setCancelable(false)
.setPositiveButton("Yes", new DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialog, int i){
finish();
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialog, int i){
dialog.cancel();
}
});
AlertDialog alert = builder.create();
alert.setTitle("종료 알림창");
alert.show();
}
});
}
}
| cs |
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