타이머 사용하여 1초마다 1씩 증가하기

- Timer.scheduledTimer()

- Timer.invalidate()

- Timer.isValid



ViewController.swift)

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import UIKit
 
class ViewController: UIViewController {
 
    //ui
    @IBOutlet weak var btnStart: UIButton!
    @IBOutlet weak var btnEnd: UIButton!
    @IBOutlet weak var txtTime: UILabel!
    
    //timer
    var mTimer : Timer?
    var number : Int = 0
    
 
    override func viewDidLoad() {
        super.viewDidLoad()
    }
 
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }
 
    /** 타이머 시작버튼 클릭 */
    @IBAction func onTimerStart(_ sender: Any) {
        if let timer = mTimer {
            //timer 객체가 nil 이 아닌경우에는 invalid 상태에만 시작한다
            if !timer.isValid {
                /** 1초마다 timerCallback함수를 호출하는 타이머 */
                mTimer = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(timerCallback), userInfo: nil, repeats: true)
            }
        }else{
            //timer 객체가 nil 인 경우에 객체를 생성하고 타이머를 시작한다
            /** 1초마다 timerCallback함수를 호출하는 타이머 */
            mTimer = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(timerCallback), userInfo: nil, repeats: true)
        }
    }
 
    /** 타이머 종료버튼 클릭 */
    @IBAction func onTimerEnd(_ sender: Any) {
        if let timer = mTimer {
            if(timer.isValid){
                timer.invalidate()
            }
        }
        
        number = 0
        txtTime.text = String(number)
    }
    
    
    //타이머가 호출하는 콜백함수
    func timerCallback(){
        number += 1
        txtTime.text = String(number)
    }
}
cs



결과

타이머 시작 버튼을 클릭하면 숫자가 1씩 증가하며 타이머 종료 버튼을 클릭하면 타이머가 종료되고 숫자는 0이된다



SMS 수신하기 (브로드캐스트 사용)



java)

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package ghj.com.recvsms;
 
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.telephony.SmsMessage;
import android.widget.Toast;
 
/**
 * Created by gwonhyeogjun on 2017. 6. 6..
 */
 
public class ReceiveSMS extends BroadcastReceiver {
 
    @Override
    public void onReceive(Context context, Intent intent) {
        Bundle bundle = intent.getExtras();
        SmsMessage[] msg;
        String receive = "";
 
        if(bundle!=null){
            //pdu 얻기
            Object[] pdus = (Object[])bundle.get("pdus");
            msg = new SmsMessage[pdus.length];
            for(int i=0; i<msg.length; i++){
                //PDU로부터 SmsMessage 객체로 변환
                if(Build.VERSION.SDK_INT>=23){
                    msg[i] = SmsMessage.createFromPdu((byte[])pdus[i], "3gpp");
                }else{
                    msg[i] = SmsMessage.createFromPdu((byte[])pdus[i]);
                }
 
                //PDU로부터 전환번호 , 메시지를 반환
                receive += msg[i].getOriginatingAddress()+" : "+msg[i].getMessageBody().toString();
            }
            Toast.makeText(context, receive, Toast.LENGTH_SHORT).show();
        }
    }
}
cs



AndroidManifest.xml)

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    <application>
        ...
        <receiver android:name=".ReceiveSMS">
            <intent-filter>
                <action android:name="android.provider.Telephony.SMS_RECEIVED" />
                <action android:name="android.provider.Telephony.WAP_PUSH_RECEIVED" />
            </intent-filter>
        </receiver>
    </application>
 
 
    <uses-permission android:name="android.permission.SEND_SMS" />
    <uses-permission android:name="android.permission.RECEIVE_SMS" />
 

cs



결과

Api로 SMS 보내기



java)

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package ghj.com.sendsms;
 
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Build;
import android.provider.Telephony;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.telephony.SmsMessage;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
 
import java.util.ArrayList;
 
public class MainActivity extends AppCompatActivity {
 
    SmsManager mSMSManager;
    EditText editBody;
 
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        mSMSManager = SmsManager.getDefault();
        editBody = (EditText)findViewById(R.id.editBody);
 
        Button btnSend = (Button)findViewById(R.id.btnSend);
        btnSend.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                sendSms();
            }
        });
    }
 
 
    public void sendSms(){
        //메시지
        String body = editBody.getText().toString();
        //160자 이하의 메시지 리스트로 만든다
        ArrayList<String> bodyList = mSMSManager.divideMessage(body);
 
        //송신 인텐트
        PendingIntent sentPI = PendingIntent.getBroadcast(this0new Intent("SMS_SENT"), 0);
        //수신 인텐트
        PendingIntent recvPI = PendingIntent.getBroadcast(this0new Intent("SMS_DELIVERED"), 0);
 
        registerReceiver(mSentReceiver, new IntentFilter("SMS_SENT"));
        registerReceiver(mRecvReceiver, new IntentFilter("SMS_DELIVERED"));
 
        //여러개의 SMS 메시지를 전송
        if(bodyList.size() > 1){
            ArrayList<PendingIntent> sentPIList = new ArrayList<>();
            ArrayList<PendingIntent> recvPIList = new ArrayList<>();
            for(int i=0; i<bodyList.size(); i++){
                sentPIList.add(sentPI);
                recvPIList.add(recvPI);
            }
            mSMSManager.sendMultipartTextMessage("010-1234-5678"null, bodyList, sentPIList, recvPIList);
        }
        //1개의 SMS 메시지를 전송
        else{
            mSMSManager.sendTextMessage("010-1234-5678"null, body, sentPI, recvPI);
        }
    }
 
    BroadcastReceiver mSentReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
             switch (getResultCode()){
                case RESULT_OK:
                    Toast.makeText(MainActivity.this"SMS Send", Toast.LENGTH_SHORT).show();
                    break;
                 case SmsManager.RESULT_ERROR_GENERIC_FAILURE:
                     Toast.makeText(MainActivity.this"ERROR_GENERIC_FAILURE", Toast.LENGTH_SHORT).show();
                     break;
                 case SmsManager.RESULT_ERROR_NO_SERVICE:
                     Toast.makeText(MainActivity.this"ERROR_NO_SERVICE", Toast.LENGTH_SHORT).show();
                     break;
                 case SmsManager.RESULT_ERROR_NULL_PDU:
                     Toast.makeText(MainActivity.this"ERROR_NULL_PDU", Toast.LENGTH_SHORT).show();
                     break;
                 case SmsManager.RESULT_ERROR_RADIO_OFF:
                     Toast.makeText(MainActivity.this"ERROR_RADIO_OFF", Toast.LENGTH_SHORT).show();
                     break;
            }
        }
    };
 
    BroadcastReceiver mRecvReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            switch (getResultCode()){
                case RESULT_OK:
                    Toast.makeText(MainActivity.this"SMS Delivered", Toast.LENGTH_SHORT).show();
                    break;
                case RESULT_CANCELED:
                    Toast.makeText(MainActivity.this"SMS Delivered Fail", Toast.LENGTH_SHORT).show();
                    break;
            }
        }
    };
}
 
cs



xml)

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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="ghj.com.sendsms.MainActivity">
 
    <EditText
        android:id="@+id/editBody"
        android:layout_width="match_parent"
        android:layout_height="50dp" />
 
    <Button
        android:id="@+id/btnSend"
        android:text="SMS 보내기"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</LinearLayout>
 
cs



AndroidManifest.xml

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    <application>
       ...
    </application>
 
 
    <uses-permission android:name="android.permission.SEND_SMS" />
    <uses-permission android:name="android.permission.RECEIVE_SMS" />
cs



결과

Intent로 SMS, MMS, Mail 보내기



java)

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package ghj.com.messageintent;
 
import android.content.Intent;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
 
public class MainActivity extends AppCompatActivity {
 
    EditText editBody;
 
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
 
        editBody = (EditText)findViewById(R.id.editBody);
        Button btnSms = (Button)findViewById(R.id.btnSms);
        btnSms.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v) {
                sendSmsIntent("010-1234-1234");
            }
        });
 
        Button btnMms = (Button)findViewById(R.id.btnMms);
        btnMms.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                getImage();
            }
        });
 
        Button btnEmail = (Button)findViewById(R.id.btnEmail);
        btnEmail.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                sendEmail("ghj@naver.com");
            }
        });
    }
 
 
    public void sendSmsIntent(String number){
        try{
            Uri smsUri = Uri.parse("sms:"+number);
            Intent sendIntent = new Intent(Intent.ACTION_SENDTO, smsUri);
            sendIntent.putExtra("sms_body", editBody.getText().toString());
            startActivity(sendIntent);
 
//        Intent sendIntent = new Intent(Intent.ACTION_VIEW);
//        sendIntent.putExtra("address", number);
//        sendIntent.putExtra("sms_body", editBody.getText().toString());
//        sendIntent.setType("vnd.android-dir/mms-sms");
//        startActivity(sendIntent);
        }catch (Exception e){
            e.printStackTrace();
        }
    }
 
    public void sendMmsIntent(String number, Uri imgUri){
        try{
            Intent sendIntent = new Intent(Intent.ACTION_SEND);
            sendIntent.putExtra("address", number);
            sendIntent.putExtra("subject""MMS Test");
            sendIntent.putExtra("sms_body", editBody.getText().toString());
            sendIntent.setType("image/*");
            sendIntent.putExtra(Intent.EXTRA_STREAM, imgUri);
            startActivity(Intent.createChooser(sendIntent, getResources().getString(R.string.app_name)));
        }catch (Exception e){
            e.printStackTrace();
        }
    }
 
    public void getImage(){
        try{
            Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
            intent.addCategory(Intent.CATEGORY_OPENABLE);
            intent.setType("image/*");
            startActivityForResult(Intent.createChooser(intent, "Image Choose"), 1);
        }catch (Exception e){
            e.printStackTrace();
        }
    }
 
    public void sendEmail(String email){
        try{
            Intent emailIntent = new Intent(Intent.ACTION_SEND);
            emailIntent.putExtra(Intent.EXTRA_EMAIL, new String[]{email});
            emailIntent.putExtra(Intent.EXTRA_CC, new String[]{email});
            emailIntent.putExtra(Intent.EXTRA_BCC, new String[]{email});
            emailIntent.putExtra(Intent.EXTRA_SUBJECT, "Email Test");
            emailIntent.putExtra(Intent.EXTRA_TEXT, editBody.getText().toString());
            emailIntent.setType("message/rfc822");
            startActivity(Intent.createChooser(emailIntent, "Email Choose"));
        }catch (Exception e){
            e.printStackTrace();
        }
    }
 
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if(requestCode == 1){
            if(resultCode==RESULT_OK){
                Uri imgUri = data.getData();
 
                sendMmsIntent("010-1234-1234", imgUri);
            }
        }
    }
}
 
cs



xml)

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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="ghj.com.messageintent.MainActivity">
 
    <EditText
        android:id="@+id/editBody"
        android:layout_width="match_parent"
        android:layout_height="50dp" />
 
 
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <Button
            android:id="@+id/btnSms"
            android:text="SMS 인텐트"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
 
        <Button
            android:id="@+id/btnMms"
            android:text="MMS 인텐트"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
 
        <Button
            android:id="@+id/btnEmail"
            android:text="Email"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>
 
 
</LinearLayout>
 
cs



결과

svg 의 텍스트에 링크걸기



html)

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<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" 
          content="width=device-width, height=device-height, 
                     minimum-scale=1.0, maximum-scale=1.0, initial-scale=1.0">
    <title>Insert title here</title>
</head>
 
<body>
    <?xml version="1.0" ?>
    <svg xmlns="http://www.w3.org/2000/svg" width="300px" height="400px" version="1.1">
        <!-- 
        a : 외부링크 연결하기
            xlink:href=사이트주소
            target="_blank" : 새창에서 열기
         -->
        <a xlink:href="http://www.naver.com" target="_blank">
            <text x="50" y="50" font-size="30px" font-weight="bold" style="fill:green;">
            NAVER
            </text>
        </a>
        <a xlink:href="http://www.google.com" target="_blank">
            <text x="50" y="100" font-size="30px" font-weight="bold" style="fill:blue;">
            GOOGLE
            </text>
        </a>
    </svg>
</body>
</html>
cs



결과

svg 의 path 따라서 텍스트 나타내기



html)

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<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" 
          content="width=device-width, height=device-height, 
                     minimum-scale=1.0, maximum-scale=1.0, initial-scale=1.0">
    <title>Insert title here</title>
</head>
 
<body>
    <?xml version="1.0" ?>
    <svg xmlns="http://www.w3.org/2000/svg" width="300px" height="400px" version="1.1">
        <!-- path 를 미리 정의합니다. -->
        <defs>
            <path id="path" d="M50,100 C100,0 150,200 200,100" />
        </defs>
 
        <!-- textPath : 텍스트가 그려질 path 를 지정합니다. -->    
        <text font-size="15px" font-weight="bold" style="fill:green;">
            <textPath xlink:href="#path">선따라 텍스트를 그립니다...</textPath>
        </text>
    </svg>
</body>
</html>
cs



결과

svg의 defs 요소 : 참조를 위한 컨테이너



html)

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<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" 
          content="width=device-width, height=device-height, 
                     minimum-scale=1.0, maximum-scale=1.0, initial-scale=1.0">
    <title>Insert title here</title>
</head>
 
<body>
    <?xml version="1.0" ?>
    <svg xmlns="http://www.w3.org/2000/svg" width="300px" height="400px" version="1.1">
        <!-- defs : 내용을 미리 정의해 놓는다 -->
        <defs>
            <rect id="test" x="50" y="50" rx="10" ry="10" width="100" height="100" /
        </defs>
        
        <!-- 일치하는 id 값의 내용을 보여준다 -->
        <use xlink:href="#test" />
    </svg>
</body>
</html>
cs



결과

svg 로 글자쓰기



html)

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<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" 
          content="width=device-width, height=device-height, 
                     minimum-scale=1.0, maximum-scale=1.0, initial-scale=1.0">
    <title>Insert title here</title>
</head>
 
<body>
    <?xml version="1.0" ?>
    <svg xmlns="http://www.w3.org/2000/svg" width="300px" height="400px" version="1.1">
        <!-- 
        x : 텍스트가 쓰여질 x좌표
        y : 텍스트가 쓰여질 y좌표
        font-family : 폰트종료
        font-size : 폰트크기
        font-weight : 폰트스타일
        fill : 글자색
         -->
        <text x="50" y="50" font-family="sans-serif" font-size="30px" font-weight="bold"
              style="fill:green;opacity:0.5;">Hello World!</text>
    </svg>
</body>
</html>
cs



결과

svg 로 path 요소로 선긋기



대문자는 절대좌표, 소문자는 상대좌표

M, m

시작점 지정

L, l 

직선 그리기 

Z, z

시작점까지 연결하기 

H, h 

수평선 긋기 

V, v

수직선 긋기

C, c 

곡선 긋기 

S, s

곡선 이어긋기 

Q, q 

2차원 베지어 곡선 긋기

T, t 

2차원 베지어 곡선 이어긋기 

A, a 

타원이나 호 그리기 



html)

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<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" 
          content="width=device-width, height=device-height, 
                     minimum-scale=1.0, maximum-scale=1.0, initial-scale=1.0">
    <title>Insert title here</title>
</head>
 
<body>
    <?xml version="1.0" ?>
    <svg xmlns="http://www.w3.org/2000/svg" width="300px" height="400px" version="1.1">
        <!-- 직선 그리기 -->
        <!-- Lx좌표,y좌표 -->
        <path d="M50,50 L200,50 200,100Z" 
              stroke="green" stroke-width="5" fill="none" />
              
        <!-- 수평선 긋기 -->
        <!-- Hx좌표 -->
        <path d="M50,150 H200"
              stroke="green" stroke-width="5" />
              
        <!-- 수직선 긋기 -->
        <!-- Vy좌표 -->
        <path d="M250,50 V150"
              stroke="green" stroke-width="5" />
 
        <!-- 곡선 긋기 -->
        <!-- C조절점1x,조절점1y 조절점2x,조절점2y 끝점x,끝점y -->
        <path d="M50,200 C100,250 150,150 200,200" 
              stroke="green" stroke-width="5" fill="none" />
              
        <!-- 곡선 이어긋기 -->
        <!-- S조절점x,조절점y 끝점x,끝점y -->
        <!-- 시작지점은 이전 곡선의 마지막 조절점의 반태편 또는 곡선이 없을 경우 마지막 지점이다 -->
        <path d="M50,250 C100,300 150,200 200,250 S250,200 300,250"
              stroke="green" stroke-width="5" fill="none" />
              
        <!-- 2차원 베지어 곡선 그리기 -->
        <!-- Q조절점x,조절점y 끝점x,끝점y -->
        <path d="M50,300 Q125,350 200,300" 
              stroke="green" stroke-width="5" fill="none" />
            
        <!-- 베지어 곡선 이어긋기 -->
        <!-- T끝점x,끝점y -->
          <!-- 시작지점은 이전 곡선의 마지막 조절점의 반태편 또는 곡선이 없을 경우 마지막 지점이다 -->
        <path d="M50,350 Q125,400 200,350 T300,350"
              stroke="green" stroke-width="5" fill="none" />
    </svg>
</body>
</html>
cs



결과

svg 로 다각형 그리기



html)

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<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" 
          content="width=device-width, height=device-height, 
                     minimum-scale=1.0, maximum-scale=1.0, initial-scale=1.0">
    <title>Insert title here</title>
</head>
 
<body>
    <?xml version="1.0" ?>
    <svg xmlns="http://www.w3.org/2000/svg" width="300px" height="400px" version="1.1">
        <!-- 
        polygon : 선의 끝부분이 연결된다
            points : 띄어쓰기로 점들을 지정한다
         -->    
        <polygon points="50,50 200,50 250,100 200,150 50,150" 
                 style="fill:orange; stroke:green; stroke-width:5;" />
        
        <!-- 
        polyline : 선의 끝부분이 연결되지 않는다         
            points : 띄어쓰기로 점들을 지정한다
         -->
        <polyline points="50,200 200,200 250,250 200,300 50,300" 
                 style="fill:orange; stroke:green; stroke-width:5;" />
    </svg>
</body>
</html>
cs



결과

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