Jaybon 의 지식창고

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

    <LinearLayout
        android:paddingTop="80dp"
        android:paddingLeft="25dp"
        android:paddingRight="25dp"
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent">


        <ImageView
            android:id="@+id/iv_logo"
            android:layout_width="match_parent"
            android:layout_height="155dp"
            android:layout_marginBottom="10dp"
            app:srcCompat="@drawable/instagram_logo" />

        <com.google.android.material.textfield.TextInputLayout
            android:id="@+id/tf_email"
            android:layout_marginTop="8dp"
            android:layout_marginBottom="8dp"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="Email">

            <com.google.android.material.textfield.TextInputEditText
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:inputType="textEmailAddress"
                />

        </com.google.android.material.textfield.TextInputLayout>

        <com.google.android.material.textfield.TextInputLayout
            android:id="@+id/tf_password"
            android:layout_marginTop="8dp"
            android:layout_marginBottom="8dp"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="Password">

            <com.google.android.material.textfield.TextInputEditText
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:inputType="textPassword"
                />

        </com.google.android.material.textfield.TextInputLayout>

        <androidx.appcompat.widget.AppCompatButton
            android:layout_width="match_parent"
            android:layout_height="60dp"
            android:layout_marginTop="10dp"
            android:background="@drawable/white_rounded_button"
            android:text="Login" />


    </LinearLayout>

</RelativeLayout>

package com.jaybon.myapplication;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.ProgressBar;

public class MainActivity extends AppCompatActivity {

    private static final String TAG = "Main_Activity"; // 다른 것은 그대로 메인만 언더바 주자(검색 용이)
    // 제일 위에 전역으로 적는 것은~
    // 컴포넌트들을 모두 전역으로 올려서 선언한다

    private ProgressBar pgbDownload;

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

        initComponent(); // 컴포넌트 초기화 (개발자 임의 작명)

        imageDownload();

        Log.d(TAG, "onCreate: 테스트1");
    }

    private void  initComponent(){ // 여기서 컴포넌트들을 찾아주고 프로그래밍 한다

        pgbDownload = findViewById(R.id.pgb_download);
        // 화면에 그리지 않으면 연산을 하지 않는다
    }

    private void imageDownload(){
        new Thread(new Runnable() {
            @Override
            public void run() {
                Log.d(TAG, "run: 다운로드 쓰레드 시작");
                try {
                    Thread.sleep(5000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                Log.d(TAG, "run: 다운로드 쓰레드 종료");
                pgbDownload.setVisibility(View.INVISIBLE);
            }
        }).start();
    }



}

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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=".MainActivity">

    <TextView
        android:id="@+id/tv_count"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="0"
        android:textSize="36sp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHorizontal_bias="0.498"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.329" />

    <Button
        android:id="@+id/btn_add"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="증가"
        app:layout_constraintBottom_toTopOf="@+id/guideline"
        app:layout_constraintEnd_toStartOf="@+id/btn_minus"
        app:layout_constraintHorizontal_bias="0.477"
        app:layout_constraintStart_toStartOf="parent" />

    <Button
        android:id="@+id/btn_minus"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="68dp"
        android:text="감소"
        app:layout_constraintBottom_toTopOf="@+id/guideline"
        app:layout_constraintEnd_toEndOf="parent" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:layout_constraintGuide_end="248dp" />

</androidx.constraintlayout.widget.ConstraintLayout>

package com.jaybon.countingapp;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    private static final String TAG = "Main_Activity";
    private Button btnAdd, btnMinus;
    private TextView tvCount;
    private int count = 0;

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

        tvCount = findViewById(R.id.tv_count);
        tvCount.setText(count+"");

        btnAdd = findViewById(R.id.btn_add);
        btnMinus = findViewById(R.id.btn_minus);

        btnAdd.setOnClickListener((View view)->{
            count++;
            tvCount.setText(count+"");
        });

        btnMinus.setOnClickListener((View view)->{
            if(count > 0){
                count--;
                tvCount.setText(count+"");
            }
        });

//        btnAdd.setOnClickListener(new View.OnClickListener() {
//            @Override
//            public void onClick(View view) {
//                count++;
//                tvCount.setText(count);
//            }
//        });
//
//        btnMinus.setOnClickListener(new View.OnClickListener() {
//            @Override
//            public void onClick(View view) {
//                count--;
//                tvCount.setText(count);
//            }
//        });

    }

}

apply plugin: 'com.android.application'

android {
    compileSdkVersion 29
    buildToolsVersion "30.0.0"

    defaultConfig {
        applicationId "com.jaybon.countingapp"
        minSdkVersion 21
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

dependencies {
    implementation fileTree(dir: "libs", include: ["*.jar"])
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

    implementation 'io.apisense:rhino-android:1.0'

}

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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=".MainActivity">

    <!--    <LinearLayout-->
    <!--        android:layout_width="wrap_content"-->
    <!--        android:layout_height="wrap_content">-->


    <!--    </LinearLayout>-->


    <EditText
        android:id="@+id/pt_result"
        android:layout_width="358dp"
        android:layout_height="62dp"
        android:layout_marginBottom="40dp"
        android:ems="10"
        android:inputType="textPersonName"
        android:text=""
        android:textSize="30sp"
        app:layout_constraintBottom_toTopOf="@+id/tableLayout"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent" />

    <TableLayout
        android:id="@+id/tableLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="20dp"
        android:orientation="vertical"
        android:stretchColumns="0, 1, 2"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <TableRow>

            <Button
                android:id="@+id/num1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="1" />

            <Button
                android:id="@+id/num2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="2" />

            <Button
                android:id="@+id/num3"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="3" />

            <Button
                android:id="@+id/btn_add"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="+" />

        </TableRow>

        <TableRow>

            <Button
                android:id="@+id/num4"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="4" />

            <Button
                android:id="@+id/num5"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="5" />

            <Button
                android:id="@+id/num6"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="6" />

            <Button
                android:id="@+id/btn_minus"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="-" />

        </TableRow>

        <TableRow>

            <Button
                android:id="@+id/num7"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="7" />

            <Button
                android:id="@+id/num8"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="8" />

            <Button
                android:id="@+id/num9"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="9" />

            <Button
                android:id="@+id/btn_multi"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="*" />

        </TableRow>

        <TableRow>

            <Button
                android:id="@+id/num0"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="0" />

            <Button
                android:id="@+id/btn_clear"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="C" />

            <Button
                android:id="@+id/btn_devide"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="/" />

            <Button
                android:id="@+id/btn_cal"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="=" />

        </TableRow>


    </TableLayout>


</androidx.constraintlayout.widget.ConstraintLayout>

package com.jaybon.countingapp;

import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;

public class eval {
    public static String cal (String result) throws ScriptException {
        ScriptEngineManager manager = new ScriptEngineManager();
        ScriptEngine engine = manager.getEngineByName("js");
        try {
            return engine.eval(result).toString();
        }catch(Exception e) {
            e.getStackTrace();
        }
        return null;
    }
}

package com.jaybon.countingapp;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import javax.script.ScriptException;


public class MainActivity extends AppCompatActivity {

    private static final String TAG = "Main_Activity";

    private EditText ptResult;
    private Button btn[] = new Button[16];
    private int i;


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

        init();
        initListener();



//        btnAdd.setOnClickListener((View view)->{
//
//            Log.d(TAG, "onCreate: btnAdd:"+view.getId());
//
//            count++;
//            tvCount.setText(count+"");
//        });
//
//        btnMinus.setOnClickListener((View view)->{
//            if(count > 0){
//                count--;
//                tvCount.setText(count+"");
//            }
//        });
    }

    private void init(){
        btn[0] = findViewById(R.id.num0);
        btn[1] = findViewById(R.id.num1);
        btn[2] = findViewById(R.id.num2);
        btn[3] = findViewById(R.id.num3);
        btn[4] = findViewById(R.id.num4);
        btn[5] = findViewById(R.id.num5);
        btn[6] = findViewById(R.id.num6);
        btn[7] = findViewById(R.id.num7);
        btn[8] = findViewById(R.id.num8);
        btn[9] = findViewById(R.id.num9);
        btn[10] = findViewById(R.id.btn_add);
        btn[11] = findViewById(R.id.btn_minus);
        btn[12] = findViewById(R.id.btn_multi);
        btn[13] = findViewById(R.id.btn_devide);
        btn[14] = findViewById(R.id.btn_clear);
        btn[15] = findViewById(R.id.btn_cal);
        ptResult = findViewById(R.id.pt_result);
    }

    private void initListener(){

        for (i=0; i<14; i++){
            btn[i].setOnClickListener((View view)->{
                Button btn = (Button)view;
                ptResult.append(btn.getText().toString());
            });
        }

        btn[14].setOnClickListener((View view)->{
            ptResult.setText("");
        });

        btn[15].setOnClickListener((View view)->{
            String result = ptResult.getText().toString();
            try {
                ptResult.setText(eval.cal(result));
            } catch (ScriptException e) {
                e.printStackTrace();
            }
        });

    }

}