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먼저 실행 동영상



java 파일

package com.example.acer.aibridgeapp;
// you need the following imports in all Java Bridge apps


import com.google.appinventor.components.runtime.Button;
import com.google.appinventor.components.runtime.Component;
import com.google.appinventor.components.runtime.EventDispatcher;
import com.google.appinventor.components.runtime.Form;
import com.google.appinventor.components.runtime.HandlesEventDispatching;
import com.google.appinventor.components.runtime.HorizontalArrangement;
import com.google.appinventor.components.runtime.Label;
import com.google.appinventor.components.runtime.TextBox;

import java.util.regex.*;

public class Screen1 extends Form implements HandlesEventDispatching
{

   // declare all your components as instance variables    private Label Totallable;
    private HorizontalArrangement ha;
   private HorizontalArrangement ha2;
   private HorizontalArrangement ha3;
   private HorizontalArrangement ha4;
   private HorizontalArrangement ha5;
   private HorizontalArrangement ha6;
   private Button Button1;
   private Button Button2;
   private Button Button3;
   private Button Button4;
   private Button Button5;
   private Button Button6;
   private Button Button7;
   private Button Button8;
   private Button Button9;
   private Button Button0;
   private Button Buttonminus;
   private Button Buttonplus;
   private Button Buttondivide;
   private Button Buttonmulti;
   private Button Buttonclear;
   private TextBox tb;
   private TextBox tb2;
   private Button Cal;
    String txt = ""; String txt2 ="";
    String [] arr;int result=0; Double result2;
   Pattern p = Pattern.compile("\\D+");
    public static boolean isInt(String s) {
        try {
            Integer.parseInt(s);
            return true;
        } catch (NumberFormatException e) {
            return false;
        }
    }
protected void $define()
   {  
      // create the button component        this.ScreenOrientation("portrait");
        this.Title("Calculation");
        this.BackgroundColor(COLOR_WHITE);
        this.Scrollable(true);
        Totallable = new Label(this);
        Totallable.Text("Touch the Button");
        Totallable.FontSize(20.0f);
        Totallable.Width(LENGTH_FILL_PARENT);
        Totallable.TextAlignment(ALIGNMENT_CENTER);
        Totallable.FontBold(true);
        ha = new HorizontalArrangement(this);
      ha.Width(LENGTH_FILL_PARENT);
      Button1 = new Button(ha);Button1.Text( "1" );  Button1.BackgroundColor(COLOR_GRAY );
      Button1.Width(480);Button1.Height(300);Button1.FontSize(25.0f);Button1.FontBold(true);
      Button2 = new Button(ha);Button2.Text( "2" );  Button2.BackgroundColor(COLOR_GRAY );
      Button2.Width(480);Button2.Height(300);Button2.FontSize(25.0f);Button2.FontBold(true);
      Button3 = new Button(ha);Button3.Text( "3" );  Button3.BackgroundColor(COLOR_GRAY );
      Button3.Width(480);Button3.Height(300);Button3.FontSize(25.0f);Button3.FontBold(true);
      ha2 = new HorizontalArrangement(this);
      Button4 = new Button(ha2); Button4.Text( "4" );Button4.BackgroundColor(COLOR_GRAY );
      Button4.Width(480);Button4.Height(300);Button4.FontSize(25.0f);Button4.FontBold(true);
      Button5 = new Button(ha2); Button5.Text( "5" );Button5.BackgroundColor(COLOR_GRAY );
      Button5.Width(480);Button5.Height(300);Button5.FontSize(25.0f);Button5.FontBold(true);
      Button6 = new Button(ha2); Button6.Text( "6" );Button6.BackgroundColor(COLOR_GRAY );
      Button6.Width(480);Button6.Height(300);Button6.FontSize(25.0f);Button6.FontBold(true);
      ha3 = new HorizontalArrangement(this);
      Button7 = new Button(ha3); Button7.Text( "7" );Button7.BackgroundColor(COLOR_GRAY );
      Button7.Width(480);Button7.Height(300);Button7.FontSize(25.0f);Button7.FontBold(true);
      Button8 = new Button(ha3); Button8.Text( "8" );Button8.BackgroundColor(COLOR_GRAY );
      Button8.Width(480);Button8.Height(300);Button8.FontSize(25.0f);Button8.FontBold(true);
      Button9 = new Button(ha3); Button9.Text( "9" );Button9.BackgroundColor(COLOR_GRAY );
      Button9.Width(480);Button9.Height(300);Button9.FontSize(25.0f);Button9.FontBold(true);
      ha4 = new HorizontalArrangement(this);
      Button0 = new Button(ha4); Button0.Text( "0" );Button0.BackgroundColor(COLOR_GRAY );
      Button0.Width(480);Button0.Height(300);Button0.FontSize(25.0f);Button0.FontBold(true);
      Buttonplus = new Button(ha4);Buttonplus.Text( "+" );   Buttonplus.BackgroundColor(COLOR_GRAY );
      Buttonplus.Width(480);Buttonplus.Height(300);Buttonplus.FontSize(25.0f);Buttonplus.FontBold(true);
      Buttonminus = new Button(ha4);Buttonminus.Text( "-" );Buttonminus.BackgroundColor(COLOR_GRAY );
      Buttonminus.Width(480);Buttonminus.Height(300);Buttonminus.FontSize(25.0f);Buttonminus.FontBold(true);
      ha5 = new HorizontalArrangement(this);
      Buttondivide = new Button(ha5);Buttondivide.Text( "/" );Buttondivide.BackgroundColor(COLOR_GRAY );
      Buttondivide.Width(480);Buttondivide.Height(300);Buttondivide.FontSize(25.0f);Buttondivide.FontBold(true);
      Buttonmulti = new Button(ha5);Buttonmulti.Text( "*" );Buttonmulti.BackgroundColor(COLOR_GRAY );
      Buttonmulti.Width(480);Buttonmulti.Height(300);Buttonmulti.FontSize(25.0f);Buttonmulti.FontBold(true);
      Buttonclear = new Button(ha5);Buttonclear.Text("C");Buttonclear.BackgroundColor(COLOR_GRAY);
      Buttonclear.Width(480);Buttonclear.Height(300);Buttonclear.FontSize(25.0f);Buttonclear.FontBold(true);
      tb = new TextBox(this);tb.BackgroundColor(COLOR_LTGRAY);tb.Width(LENGTH_FILL_PARENT);tb.FontSize(25.0f);tb.FontBold(true);
      ha6 = new HorizontalArrangement(this);
      ha6.Visible(true);ha6.Height(50);
      Cal = new Button(this);Cal.Text( "=" );Cal.BackgroundColor(COLOR_GRAY );Cal.Width(480);Cal.Height(300);Cal.FontSize(25.0f);Cal.FontBold(true);
      tb2 = new TextBox(this);tb2.BackgroundColor(COLOR_LTGRAY);tb2.Width(LENGTH_FILL_PARENT);tb2.FontBold(true);tb2.FontSize(25.0f);
      EventDispatcher.registerEventForDelegation( this, "Button1Click", "Click" );
   }
 public boolean dispatchEvent(Component component, String componentName, String eventName, Object[] params )
   {
      if (component.equals(Button1) && eventName.equals("Click")) {
         ButtonClick();int value = 1; txt += String.valueOf(value);tb.Text(txt);
         return true;
      }
      if (component.equals(Button2) && eventName.equals("Click")) {
         ButtonClick();int value = 2; txt +=String.valueOf(value);tb.Text(txt);
         return true;
      }
      if (component.equals(Button3) && eventName.equals("Click")) {
         ButtonClick();int value = 3; txt += String.valueOf(value);tb.Text(txt);
         return true;
      }
      if (component.equals(Button4) && eventName.equals("Click")) {
         ButtonClick();int value = 4; txt += String.valueOf(value);tb.Text(txt);
         return true;
      }
      if (component.equals(Button5) && eventName.equals("Click")) {
         ButtonClick();int value = 5; txt += String.valueOf(value);tb.Text(txt);
         return true;
      }
      if (component.equals(Button6) && eventName.equals("Click")) {
         ButtonClick();int value = 6; txt += String.valueOf(value);tb.Text(txt);
         return true;
      }
      if (component.equals(Button7) && eventName.equals("Click")) {
         ButtonClick();int value = 7; txt += String.valueOf(value);tb.Text(txt);
         return true;
      }
      if (component.equals(Button8) && eventName.equals("Click")) {
         ButtonClick();int value = 8; txt += String.valueOf(value);tb.Text(txt);
         return true;
      }
      if (component.equals(Button9) && eventName.equals("Click")) {
         ButtonClick();int value = 9; txt += String.valueOf(value);tb.Text(txt);
         return true;
      }
      if (component.equals(Button0) && eventName.equals("Click")) {
         ButtonClick();int value = 0; txt += String.valueOf(value);tb.Text(txt);
         return true;
      }
      if (component.equals(Buttonplus) && eventName.equals("Click")) {
         ButtonClick();int buffer=0;buffer = Integer.parseInt(txt);
         String value = "+"; txt2 = txt+ String.valueOf(value);tb2.Text(txt2);
         txt = "";
         return true;
      }
      if (component.equals(Buttonminus) && eventName.equals("Click")) {
         ButtonClick();int buffer=0; buffer = Integer.parseInt(txt);
         String value = "-"; txt2 = txt+ String.valueOf(value);tb2.Text(txt2);
         txt = "";
         return true;
      }
      if (component.equals(Buttondivide) && eventName.equals("Click")) {
         ButtonClick();int buffer=0; buffer = Integer.parseInt(txt);
         String value = "/"; txt2 = txt+ String.valueOf(value);tb2.Text(txt2);
         txt = "";
         return true;
      }
      if (component.equals(Buttonmulti) && eventName.equals("Click")) {
         ButtonClick();int buffer=0; buffer = Integer.parseInt(txt);
         String value = "*"; txt2 = txt+ String.valueOf(value);tb2.Text(txt2);
         txt = "";
         return true;
      }
      if(component.equals(Buttonclear) && eventName.equals("Click")){
         ButtonClick();txt="";tb.Text(txt);
      }
      if(component.equals(Cal) && eventName.equals("Click")){
         ButtonClick();
         if(txt2.contains("+")){
         arr = txt2.split("\\+");
         result = Integer.parseInt(arr[0])+ Integer.parseInt(txt);
         tb2.Text(String.valueOf(result));}
         if(txt2.contains("-")){
            arr = txt2.split("\\-");
            result = Integer.parseInt(arr[0])- Integer.parseInt(txt);
            tb2.Text(String.valueOf(result));}
         if(txt2.contains("/")){
            arr = txt2.split("\\/");
            result2 = Double.parseDouble(arr[0])/ Double.parseDouble(txt);
            tb2.Text(String.valueOf(result2));}
         if(txt2.contains("*")){
            arr = txt2.split("\\*");
            result = Integer.parseInt(arr[0])* Integer.parseInt(txt);
            tb2.Text(String.valueOf(result));}
      }

    return false;
   }
public void ButtonClick()
   {
      Button1.GotFocus();
   }
   
}

AndroidManifest.xml

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

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

package="com.example.acer.aibridgeapp">

    <application        

android:allowBackup="true"        

android:icon="@mipmap/ic_launcher"        

android:label="@string/app_name"        

android:roundIcon="@mipmap/ic_launcher_round"        

android:supportsRtl="true"        

android:theme="@style/AppTheme">
        <activity android:name=".Screen1">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>