'2019/04'에 해당되는 글 7건

// for more info, search SET_LINE_CODING and SET_CONTROL_LINE_STATE in the document:
// "Universal Serial Bus Class Definitions for Communication Devices"

final int RQSID_SET_LINE_CODING = 0x20;
final int RQSID_SET_CONTROL_LINE_STATE = 0x22;

int usbResult;
usbResult = usbDeviceConnection.controlTransfer(0x21, // requestType
        RQSID_SET_CONTROL_LINE_STATE, // SET_CONTROL_LINE_STATE
        0, // value
        0, // index
        null, // buffer
        0, // length
        0); // timeout

// baud rate = 9600, 8 data bit, 1 stop bit
byte[] encodingSetting = new byte[] { (byte) 0x80, 0x25, 0x00, 0x00, 0x00, 0x00, 0x08 };
usbResult = usbDeviceConnection.controlTransfer(0x21, // requestType
        RQSID_SET_LINE_CODING, // SET_LINE_CODING
        0, // value
        0, // index
        encodingSetting, // buffer
        7, // length
        0); // timeout

    public static void writeLog(String str) {
        String str_Path_Full = Environment.getExternalStorageDirectory()
                .getAbsolutePath() + "/download/logdata.txt";
        File file = new File(str_Path_Full);
        if (file.exists() == false) {
            try {
                file.createNewFile();
            } catch (IOException e) {
            }
        } else {
            try {
                BufferedWriter bfw = new BufferedWriter(new FileWriter(str_Path_Full,true));
                bfw.write(str);
                bfw.write("\n");
                bfw.flush();
                bfw.close();
            } catch (FileNotFoundException e) {

            } catch (IOException e) {

            }
        }
    }

public class HandlerActivity extends AppCompatActivity {
    Handler mainThreadHandler;

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

        mainThreadHandler = new Handler(){
            @Override
            public void handleMessage(Message msg) {
                super.handleMessage(msg);
                if(msg.what == 1){
                }
            }
        };
    }
}

public class HandlerActivity extends AppCompatActivity {
    CHandler mainThreadHandler;

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

        mainThreadHandler = new Handler();
    }
    private class CHandler extends Handler {
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            if(msg.what == 1){
                //handle message
            }
        }
    }
}

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import java.lang.ref.WeakReference;

public class HandlerActivity extends AppCompatActivity {
    Button handlerStartButton;
    Button handlerStopButton;
    Handler mainThreadHandler;
    static TextView handlerExampleTextView;
    static int workValue = 0;
    boolean running = true;

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

        handlerStartButton = findViewById(R.id.btn_start);
        handlerStopButton = findViewById(R.id.btn_stop);
        handlerExampleTextView = findViewById(R.id.tv);

        mainThreadHandler = new MyHandler(this);

        handlerStartButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                running = true;
                startCount();
            }
        });
        handlerStopButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                running = false;
                workValue = 0;
            }
        });
    }

    private void startCount(){
        // Start a child thread when button is clicked.
        WorkerThread thread = new WorkerThread();
        thread.start();
    }

    private static class MyHandler extends Handler{
        private final WeakReference<HandlerActivity> mActivity;

        private MyHandler(HandlerActivity activity) {
            mActivity = new WeakReference<HandlerActivity>(activity);
        }

        @Override
        public void handleMessage(Message msg) {
            HandlerActivity activity = mActivity.get();
            if(activity != null){
                if(msg.what == 1){
                    handlerExampleTextView.setText("BackValue:" + workValue);
                }
            }
        }
    }

    private class WorkerThread extends Thread{
        @Override
        public void run() {
            super.run();
            while(running){
                workValue++;  // 작업스레드 값 증가
                try {
                    java.lang.Thread.sleep(1000); // 1000ms(1초)이므로 1초 단위로 실행
                    System.out.println(java.lang.Thread.currentThread().getName());
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                // Create a message in child thread.
                Message childThreadMessage = new Message();
                childThreadMessage.what = 1;
                childThreadMessage.arg1 = workValue;
                // Put the message in main thread message queue.
                mainThreadHandler.sendMessage(childThreadMessage);
            }

        }
    }
}

<?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:orientation="vertical">

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn_start"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_gravity="center"
            android:text="시작"/>
        <Button
            android:id="@+id/btn_stop"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="중지"/>

    </LinearLayout>

    <TextView
        android:id="@+id/tv"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dp"
        android:layout_gravity="center"
        android:gravity="center"
        android:text="결과"
        android:textSize="20dp"/>

</LinearLayout>

 public boolean shouldOverrideUrlLoading(WebView view, String url) {
    view.loadUrl(url);
    return true;
}

@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
    if (url.startsWith("tel:")) {
        Intent call_phone = new Intent(Intent.ACTION_CALL);
        call_phone.setData(Uri.parse(url));
        startActivity(call_phone); // 권한 설정은 Loing.java에서 처리했음
    } else if (url.startsWith("sms:")) {
        Intent intent = new Intent(Intent.ACTION_SENDTO, Uri.parse(url));
        startActivity(intent);
    } else if (url.startsWith("intent:")) {
        try {
            Intent intent = Intent.parseUri(url, Intent.URI_INTENT_SCHEME);
            Intent existPackage = getPackageManager().getLaunchIntentForPackage(intent.getPackage());
            if (existPackage != null) {
                startActivity(intent);
            } else {
                Intent marketIntent = new Intent(Intent.ACTION_VIEW);
                marketIntent.setData(Uri.parse("market://details?id=" + intent.getPackage()));
                startActivity(marketIntent);
            }
            return true;
        } catch (Exception e) {
            e.printStackTrace();
        }
    } else {
        view.loadUrl(url);
    }
    return true;
}