Tetra

Hwarang Spirit

Posted on October 5, 2013 by tetra

and then Hwarang Spirit

At last you will win…

Posted in Vectorproduct | Tagged Hwarang Spirit | Leave a comment

Alchemy

Posted on October 3, 2013 by tetra

“And, when you want something, all the universe conspires in helping you to achieve it.”

http://www.goodreads.com/work/quotes/4835472-o-alquimista

Posted in Vectorproduct | Tagged alchemy | Leave a comment

ListView minHeight, typeface

Posted on August 28, 2013 by tetra

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:minHeight="45dip"
    android:orientation="vertical" >

     <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="15sp"
        android:typeface="monospace" 
        android:textSize="15sp"
        android:maxHeight="120dp"
        />
</LinearLayout>

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

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

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:minHeight="45dip"

android:orientation="vertical" >

<TextView

android:id="@+id/textView1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:textSize="15sp"

android:typeface="monospace"

android:textSize="15sp"

android:maxHeight="120dp"

</LinearLayout>

Posted in Android | Leave a comment

Clear All Lint Markers Errors

Posted on August 28, 2013 by tetra

case of ”Clear All Lint Markers” error …
open AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="oh.my.girl"
    android:versionCode="1"
    android:versionName="1.0" >

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name="MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

    <uses-permission android:name="android.permission.INTERNET" />

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="9" />

</manifest>

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

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

package="oh.my.girl"

android:versionCode="1"

android:versionName="1.0" >

<application

android:icon="@drawable/ic_launcher"

android:label="@string/app_name" >

<activity

android:name="MainActivity"

android:label="@string/app_name" >

<intent-filter>

</intent-filter>

</activity>

</application>

<uses-permission android:name="android.permission.INTERNET" />

<uses-sdk

android:minSdkVersion="8"

android:targetSdkVersion="9" />

</manifest>

Posted in Android, Question | Tagged android | Leave a comment

android.permission.INTERNET

Posted on August 27, 2013 by tetra

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="oh.my.girl"
    android:versionCode="1"
    android:versionName="1.0" >

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name="MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

    <uses-permission android:name="android.permission.INTERNET" />

</manifest>

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

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

package="oh.my.girl"

android:versionCode="1"

android:versionName="1.0" >

<application

android:icon="@drawable/ic_launcher"

android:label="@string/app_name" >

<activity

android:name="MainActivity"

android:label="@string/app_name" >

<intent-filter>

</intent-filter>

</activity>

</application>

<uses-permission android:name="android.permission.INTERNET" />

</manifest>

Posted in Android | Leave a comment

eclipse Korean character problem

Posted on August 27, 2013 by tetra

Window | Preferences | General | Workspace | Text file encoding | Other | UTF-8

1	Window \| Preferences \| General \| Workspace \| Text file encoding \| Other \| UTF-8

Posted in Android | Tagged android, eclipse | Leave a comment

OnItemCLickListener not working gridview

Posted on August 26, 2013 by tetra

true -> false

<?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="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="5dp"
    android:orientation="vertical"
    android:padding="5dp" 
    android:clickable="false"
    android:focusable="false"
    android:background="@drawable/grid_color_selector"
    >

    <TextView
        android:id="@+id/text"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="5dp"
        android:gravity="center"
        android:textSize="12sp" >
    </TextView>

</LinearLayout>

<?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="wrap_content"

android:layout_height="wrap_content"

android:layout_marginTop="5dp"

android:orientation="vertical"

android:padding="5dp"

android:clickable="false"

android:focusable="false"

android:background="@drawable/grid_color_selector"

<TextView

android:id="@+id/text"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_marginTop="5dp"

android:gravity="center"

android:textSize="12sp" >

</TextView>

</LinearLayout>

http://stackoverflow.com/questions/5982472/gridview-onitemclicklistener-never-gets-invoked

http://stackoverflow.com/questions/5577945/onitemclickevent-not-fired-in-gridview-in-android

Posted in Android, Question | Tagged android | Leave a comment

G is G!

Posted on August 26, 2013 by tetra

G is G! = Google is God!

1	G is G! = Google is God!

Posted in Vectorproduct | Tagged G is G! | Leave a comment

Eclipse shortcut to comment selection in an XML file

Posted on August 26, 2013 by tetra

Comment/Uncomment toggle -> Ctrl+Shift+C

<!-- <color name="blue">#00abea</color> -->

1	<!-- <color name="blue">#00abea</color> -->

http://stackoverflow.com/questions/3025546/eclipse-shortcut-to-comment-selection-in-an-xml-file

Posted in Question | Tagged Eclipse shortcut to comment selection in an XML file | Leave a comment

android.app.activitythread.performlaunchactivity nullpointerexception

Posted on August 26, 2013 by tetra

08-26 21:41:08.371: E/AndroidRuntime(17789): Caused by: java.lang.NullPointerException
08-26 21:41:08.371: E/AndroidRuntime(17789): 	at android.widget.ArrayAdapter.init(ArrayAdapter.java:310)
08-26 21:41:08.371: E/AndroidRuntime(17789): 	at android.widget.ArrayAdapter.<init>(ArrayAdapter.java:153)
08-26 21:41:08.371: E/AndroidRuntime(17789): 	at oh.my.girl._GridViewAdapter.<init>(_GridViewAdapter.java:15)

08-26 21:41:08.371: E/AndroidRuntime(17789): Caused by: java.lang.NullPointerException

08-26 21:41:08.371: E/AndroidRuntime(17789): at android.widget.ArrayAdapter.init(ArrayAdapter.java:310)

08-26 21:41:08.371: E/AndroidRuntime(17789): at android.widget.ArrayAdapter.<init>(ArrayAdapter.java:153)

08-26 21:41:08.371: E/AndroidRuntime(17789): at oh.my.girl._GridViewAdapter.<init>(_GridViewAdapter.java:15)

Posted in Android | Leave a comment

How to uninstall Windows Live Essentials via CMD line parameter

Posted on August 26, 2013 by tetra

“c:\program files\windows live\installer\wlarp.exe” /cleanup:all /q

http://answers.microsoft.com/en-us/windowslive/forum/messenger-wlinstall/how-to-uninstall-windows-live-essentials-via-cmd/3d26c7ea-faf0-437a-88b0-c5bdd3dd31ec

Posted in Question, Windows 8 | Tagged How to uninstall Windows Live Essentials via CMD line parameter | Leave a comment

vi fold method

Posted on August 26, 2013 by tetra

.vimrc configuration

setlocal foldmethod=expr
setlocal foldexpr=(getline(v:lnum)=~'^$')?-1:((indent(v:lnum)<indent(v:lnum+1))?('>'.indent(v:lnum+1)):indent(v:lnum))
set foldtext=getline(v:foldstart)
set fillchars=fold:\ "(there's a space after that \)
highlight Folded ctermfg=DarkGreen ctermbg=Black

nnoremap <S-Left> zo
inoremap <S-Left> <C-O>zo
nnoremap <S-Right> zc
inoremap <S-Right> <C-O>zc

setlocal foldmethod=expr

setlocal foldexpr=(getline(v:lnum)=~'^$')?-1:((indent(v:lnum)<indent(v:lnum+1))?('>'.indent(v:lnum+1)):indent(v:lnum))

set foldtext=getline(v:foldstart)

set fillchars=fold:\ "(there's a space after that \)

highlight Folded ctermfg=DarkGreen ctermbg=Black

nnoremap <S-Left> zo

inoremap <S-Left> <C-O>zo

nnoremap <S-Right> zc

inoremap <S-Right> <C-O>zc

vi command mode

:set foldmethod=indent

1	:set foldmethod=indent

zR -> unfold all
zM -> fold all
za -> fold/unfold

Posted in Ubuntu | Tagged vi | Leave a comment

android.os.NetworkOnMainThreadException

Posted on August 25, 2013 by tetra

android.os.NetworkOnMainThreadException -> execution error
correct source(after)

package oh.my.girl;

import java.io.IOException;
import java.io.ObjectOutputStream;
import java.net.Socket;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.text.Editable;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class NetworkActivity extends Activity {

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

		ConnectThread();
	}

	void ConnectThread()
	{
		new ConnectTask().execute(null,null,null);
	}
}

package oh.my.girl;

import java.io.IOException;

import java.io.ObjectOutputStream;

import java.net.Socket;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.text.Editable;

import android.util.Log;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;

public class NetworkActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.control);

ConnectThread();

}

void ConnectThread()

{

new ConnectTask().execute(null,null,null);

}

package oh.my.girl;

import java.io.IOException;

import android.os.AsyncTask;

public class ConnectTask extends AsyncTask<Void, Void, Void> {

	String ip = "192.168.0.2";
	int port = 8080;

	@Override
	protected Void doInBackground(Void... arg0) {
		// TODO Auto-generated method stub
		try {
			SocketClient sc = new SocketClient(ip, port);
			sc.createClientSocket();
		} catch (IOException e) {

		}

		return null;
	}
}

package oh.my.girl;

import java.io.IOException;

import android.os.AsyncTask;

public class ConnectTask extends AsyncTask<Void, Void, Void> {

String ip = "192.168.0.2";

int port = 8080;

@Override

protected Void doInBackground(Void... arg0) {

// TODO Auto-generated method stub

try {

SocketClient sc = new SocketClient(ip, port);

sc.createClientSocket();

} catch (IOException e) {

}

return null;

}

wrong source (before)

public class NetworkActivity extends Activity {

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

		try {
			SocketClient sc = new SocketClient(ip, port);
			sc.createClientSocket();
		} catch (IOException e) {

		}
	}
}

public class NetworkActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.control);

try {

SocketClient sc = new SocketClient(ip, port);

sc.createClientSocket();

} catch (IOException e) {

}

impossible to connet network in main UI thread after Android 3.0 version
so you must create other thread

cite from -> http://ironheel.tistory.com/48

사실 위 코드에는 문제가 전혀 없다.
문제는 android가 변했다는 점이다.

결론부터 말하자면 honeycomb에서는 main thread(UI)에서 네트워크 호출을 하면 무조건 error로 간주한다.

앱 전체의 thread와 컨트롤을 관리하는 main에서 네트워크 호출로 대기중인 시간이 길어지면
사용자는 안드로이드앱의 문제로 인식하게 된다. 이를 방지하자는 것이 목적이다.
다음 링크를 참조하자 : painless threading 번역글

Posted in Android | Leave a comment

android socket

Posted on August 25, 2013 by tetra

package oh.my.girl

import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.Socket;

import android.app.Activity;
import android.os.Bundle;
import android.widget.Button;
import android.widget.TextView;

public class SocketClient extends Activity {

	Button button1;

	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

		String host = "192.168.0.2";
		int port = 8080;

		Socket socket = null;
		OutputStream os = null;
		OutputStreamWriter osw = null;

		try {
			socket = new Socket(host, port);
			os = socket.getOutputStream();
			osw = new OutputStreamWriter(os);
		} catch (IOException e) {
		}
		String message = "I love you";

		try {
			osw.write(message, 0, message.length());
			osw.flush();
		} catch (IOException e) {
		}

		TextView tv = (TextView) findViewById(R.id.text);
		tv.setText(message);

		try {
			socket.close();
		} catch (IOException e) {

		}

	}
}

package oh.my.girl

import java.io.IOException;

import java.io.OutputStream;

import java.io.OutputStreamWriter;

import java.net.Socket;

import android.app.Activity;

import android.os.Bundle;

import android.widget.Button;

import android.widget.TextView;

public class SocketClient extends Activity {

Button button1;

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

String host = "192.168.0.2";

int port = 8080;

Socket socket = null;

OutputStream os = null;

OutputStreamWriter osw = null;

try {

socket = new Socket(host, port);

os = socket.getOutputStream();

osw = new OutputStreamWriter(os);

} catch (IOException e) {

}

String message = "I love you";

try {

osw.write(message, 0, message.length());

osw.flush();

} catch (IOException e) {

}

TextView tv = (TextView) findViewById(R.id.text);

tv.setText(message);

try {

socket.close();

} catch (IOException e) {

}

Posted in Android | Tagged android | Leave a comment

socket2

Posted on August 24, 2013 by tetra

public static void main(String args[]) {

	String ip = "192.168.0.2";
	int port = 8080;

	Socket socket = null;
	OutputStream os = null;
	OutputStreamWriter osw = null;

	Socket socket2 = new Socket();
	SocketAddress sock_addr = new InetSocketAddress(ip, port);

	try {
		socket2.connect(sock_addr);
	} catch (UnknownHostException ue) {

	} catch (IOException ie) {

	}

	try {
		os = socket2.getOutputStream();
		osw = new OutputStreamWriter(os);
	} catch (IOException ie) {

	}

	String data = "I love you";
	try {
		osw.write(data, 0, data.length());
		osw.flush();
	} catch (IOException ie) {

	}

}

public static void main(String args[]) {

String ip = "192.168.0.2";

int port = 8080;

Socket socket = null;

OutputStream os = null;

OutputStreamWriter osw = null;

Socket socket2 = new Socket();

SocketAddress sock_addr = new InetSocketAddress(ip, port);

try {

socket2.connect(sock_addr);

} catch (UnknownHostException ue) {

} catch (IOException ie) {

}

try {

os = socket2.getOutputStream();

osw = new OutputStreamWriter(os);

} catch (IOException ie) {

}

String data = "I love you";

try {

osw.write(data, 0, data.length());

osw.flush();

} catch (IOException ie) {

}

Posted in Android, Java | Tagged android, java | Leave a comment

socket client data stream main

Posted on August 24, 2013 by tetra

public static void main(String args[]) {

	String ip = "192.168.0.2";
	int port = 8080;

	try {
		SocketClient sc = new SocketClient(ip, port);
		sc.createSocket("Welcome!");
	} catch (IOException e) {

	}
}

public static void main(String args[]) {

String ip = "192.168.0.2";

int port = 8080;

try {

SocketClient sc = new SocketClient(ip, port);

sc.createSocket("Welcome!");

} catch (IOException e) {

}

Posted in Android, Java | Leave a comment

socket write OutputStreamWriter OutputStream getOutputStream

Posted on August 24, 2013 by tetra

public void createSocket(String str) {

	try {
		os = socket.getOutputStream();
		osw = new OutputStreamWriter(os);
	} catch (IOException e) {

	}

	try {
		osw.write(str, 0, str.length());
		osw.flush();
	} catch (IOException e) {

	}
}

public void createSocket(String str) {

try {

os = socket.getOutputStream();

osw = new OutputStreamWriter(os);

} catch (IOException e) {

}

try {

osw.write(str, 0, str.length());

osw.flush();

} catch (IOException e) {

}

Posted in Android, Java | Leave a comment

SocketClient constructor

Posted on August 24, 2013 by tetra

SocketClient(String ip, int port) throws IOException {
	try {
		socket = new Socket(ip, port);
	} catch (IOException e) {
		throw e;
	}
}

SocketClient(String ip, int port) throws IOException {

try {

socket = new Socket(ip, port);

} catch (IOException e) {

throw e;

}

Posted in Uncategorized | Leave a comment

Java is so simple!

Posted on August 24, 2013 by tetra

Java is so simple!

Posted in Java | Tagged java | Leave a comment

Create a Project with Command Line

Posted on August 23, 2013 by tetra


android create project --target 13 --name XXX --path ./Desktop/XXX --activity XXXActivity --package com.XXX

android create project --target 13 --name XXX --path ./Desktop/XXX --activity XXXActivity --package com.XXX

http://developer.android.com/training/basics/firstapp/creating-project.html#CommandLine

Posted in Android | Tagged android | Leave a comment

Hwarang Spirit

Alchemy

ListView minHeight, typeface

Clear All Lint Markers Errors

android.permission.INTERNET

eclipse Korean character problem

OnItemCLickListener not working gridview

G is G!

Eclipse shortcut to comment selection in an XML file

android.app.activitythread.performlaunchactivity nullpointerexception

How to uninstall Windows Live Essentials via CMD line parameter

vi fold method

android.os.NetworkOnMainThreadException

android socket

socket2

socket client data stream main

socket write OutputStreamWriter OutputStream getOutputStream

SocketClient constructor

Java is so simple!

Create a Project with Command Line

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