Category Archives: Android

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>

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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>

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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

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)

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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 … Continue reading →

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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

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

Java Source Structure

Posted on August 23, 2013 by tetra


// ===========================================================
// Constants
// ===========================================================

// ===========================================================
// Fields
// ===========================================================

// ===========================================================
// Constructors
// ===========================================================

// ===========================================================
// Getter & Setter
// ===========================================================

// ===========================================================
// Methods for/from SuperClass/Interfaces
// ===========================================================

// ===========================================================
// Methods
// ===========================================================

// ===========================================================
// Inner and Anonymous Classes
// ===========================================================

// ===========================================================

// Constants

// ===========================================================

// Fields

// ===========================================================

// Constructors

// ===========================================================

// Getter & Setter

// ===========================================================

// Methods for/from SuperClass/Interfaces

// ===========================================================

// Methods

// ===========================================================

// Inner and Anonymous Classes

// ===========================================================

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

Razdroid download

Posted on August 22, 2013 by tetra

image download http://androidpi.wikia.com/wiki/Android_Pi_Wiki open Git Shell git clone https://github.com/Razdroid/razdroid-kernel <- copy and paste(right-click)

Posted in Android, Raspberry Pi | Tagged android, git, Raspberry Pi, razdroid | Leave a comment

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