Toast를 통해서 메세지 박스등 기능을 하는 위젯을 팝업

toast될 위젯은 /app/res/layout/ 디렉토리에 별도로 생성하고,

Java를 통해서 연동해주어야 함(R.layout.*xml)

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="center_horizontal"

android:orientation="vertical" >

<Button

android:id="@+id/button1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="DIALOG BOX" />

</LinearLayout>

MainActivity.java

package com.example.myapplication;

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.Toast;

public class MainActivity extends AppCompatActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

Button button1=(Button)findViewById(R.id.button1);

button1.setOnClickListener(new View.OnClickListener(){

@Override

public void onClick(View view){

AlertDialog.Builder dlg=new AlertDialog.Builder(MainActivity.this);

dlg.setTitle("TITLE!!");

dlg.setMessage("CONTENT!!!");

dlg.setIcon(R.drawable.ic_launcher);

dlg.setPositiveButton("CONFIRM", new DialogInterface.OnClickListener(){

@Override

public void onClick(DialogInterface dialogInterface, int i){

Toast.makeText(MainActivity.this, "Got CONFIRM", Toast.LENGTH_SHORT).show();

}

});

dlg.show();

}

});

}

setItems()

목록 대화 상자

package com.example.myapplication;

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;

public class MainActivity extends AppCompatActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

Button button1=(Button)findViewById(R.id.button1);

button1.setOnClickListener(new View.OnClickListener(){

@Override

public void onClick(View view){

final String[] versionArray=new String[] {"파이", "큐(10)", "알(11)"};

AlertDialog.Builder dlg=new AlertDialog.Builder(MainActivity.this);

dlg.setTitle("좋아하는 버전은?");

dlg.setIcon(R.drawable.q10);

dlg.setItems(versionArray, new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialogInterface, int i) {

button1.setText(versionArray[i]);

}

});

dlg.setPositiveButton("닫기", null);

dlg.show();

}

});

}

setSigleChoiceItems()

라디오 버튼 목록 대화상자

package com.example.myapplication;

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;

public class MainActivity extends AppCompatActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

Button button1=(Button)findViewById(R.id.button1);

button1.setOnClickListener(new View.OnClickListener(){

@Override

public void onClick(View view){

final String[] versionArray=new String[] {"파이", "큐(10)", "알(11)"};

AlertDialog.Builder dlg=new AlertDialog.Builder(MainActivity.this);

dlg.setTitle("좋아하는 버전은?");

dlg.setIcon(R.drawable.q10);

dlg.setSingleChoiceItems(versionArray, 0, new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialogInterface, int i) {

button1.setText(versionArray[i]);

}

});

dlg.setPositiveButton("닫기", null);

dlg.show();

}

});

}

setMultiChoiceItems()

체크박스 목록 대화상자

package com.example.myapplication;

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;

public class MainActivity extends AppCompatActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

Button button1=(Button)findViewById(R.id.button1);

button1.setOnClickListener(new View.OnClickListener(){

@Override

public void onClick(View view){

final String[] versionArray=new String[] {"파이", "큐(10)", "알(11)"};

final boolean[] checkArray=new boolean[] {true, false, false};

AlertDialog.Builder dlg=new AlertDialog.Builder(MainActivity.this);

dlg.setTitle("좋아하는 버전은?");

dlg.setIcon(R.drawable.q10);

dlg.setMultiChoiceItems(versionArray, checkArray, new DialogInterface.OnMultiChoiceClickListener() {

@Override

public void onClick(DialogInterface dialogInterface, int i, boolean b) {

button1.setText(versionArray[i]);

}

});

dlg.setPositiveButton("닫기", null);

dlg.show();

}

});

}

사용자 정보 입력 대화 상자

xml 3개를 생성한 후 java를 이용해서 xml 화면 출력

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="center_horizontal"

android:orientation="vertical" >

<TextView

android:id="@+id/tvName"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="사용자 이름"

android:textSize="20dp" />

<TextView

android:id="@+id/tvEmail"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="이메일"

android:textSize="20dp" />

<Button

android:id="@+id/button1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="여기에 클릭" />

</LinearLayout>

res/layout/dialog1.xml

(LinearLayout_Root element 으로 추가로 생성)

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android:="http://schemas.android.com/apk/res/android"

android:orientation="vertical"

android:layout_width="match_parent"

android:layout_height="match_parent" >

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="사용자 이름"

android:textSize="20dp" />

<EditText

android:id="@+id/dlgEdt1"

android:layout_width="match_parent"

android:layout_height="wrap_content" />

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="이메일"

android:textSize="20dp" />

<EditText

android:id="@+id/dlgEdt2"

android:layout_width="match_parent"

android:layout_height="wrap_content" />

</LinearLayout>

res/layout/toast1.xml

(LinearLayout_Root element 으로 추가로 생성)

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="horizontal"

android:layout_width="match_parent"

android:layout_height="match_parent" >

<ImageView

android:id="@+id/imageView1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:src="@drawable/btn_star_big_on" />

<TextView

android:id="@+id/toastText1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="TextView"

android:textSize="20dp" />

<ImageView

android:id="@+id/imageView2"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:src="@drawable/btn_star_big_on" />

</LinearLayout>

MainActivity.java

package com.example.myapplication

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.EditText;

import android.widget.TextView;

import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

TextView tvName, tvEmail;

Button button;

EditText dlgEdtName, dlgEdtEmail;

TextView toastText;

View dialogView, toastView;

@Override

protected void onCreate(Bundle savedInstanceState){

super.onCreate(savedInsatnceState);

setContentView(R.layout.activity_main);

setTitle("사용자 정보 입력");

tvName=(TextView)findViewById(R.id.tvName);

tvEmail=(TextView)findViewById(R.id.tvEmail);

button=(Button)findViewById(R.id.button1);

button.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view){

// Dialog 불러오기(dialog1.xml)

dialogView=(View)View.inflate(MainActivity.this, R.layout.dialog1, null);

AlertDialog.Builder dlg=new AlertDialog.Builer(MainActivity.this);

dlg.setTitle("사용자 입력");

dlg.setIcon(R.drawable.ic_menu_allfriends);

dlg.setView(dialogView);

dlg.setPositiveButton("확인", new DialogInterface.onClickListener(){

@Override

public void onClick(DialogInterface dialogInterface, int i){

// dialog EditText java 연동

dlgEdtName=(EditText)dialogView.findViewById(R.id.dlgEdt1);

dlgEdtEmail=(EditText)dialogView.findViewById(R.id.dlgEdt2);

tvName.setText(dlgEdtName.getText().toString());

tvEmail.setText(dlgEdtEmail.getText().toString());

}

});

dlg.setNegativeButton("취소", new DialogInterface.onClickListener(){

@Override

public void onClick(DialogInterface dialogInterface, int i){

// Toast 불러오기 (toast1.xml);

Toast toast=new Toast(MainActivity.this);

toastView=(View)View.inflate(MainActivity.this, R.layout.toast1, null);

// toast TextView java 연동

toastText=(TextView)toastView.findViewById(R.id.toastText1);

toastText.setText("취소했습니다.");

toast.setView(toastView);

toast.show();

});

dlg.show();

}

});

}

Toast MessageBox