Intel Running Android on Atom Chips

Hi all
Check this article found on Technorati.

I believe its a step towards the right direction for Android.

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Android emulator too large

sometimes after installing Android sdk and launching the emulator you find that the emulator is too large that some of it may be invisible.

to correct this do the following:

1. from  eclipse go to Run->Run configurations.
2. from the left pane choose your project name and from the right pane choose the target tab.
3. you will see a list of available virtual devices. choose yours and youll find below the Additional Emulator Options section.
4. enter the following command  -scale 0.7, where 0.7 is the ratio between the emulator size and your screen size.
5. run the project and the emularot size will be adjusted to your screen

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Simple HTTP server running on Android

Its my old exercise "Implement simple HTTP server running on Android". Somebody report its not work, so I re-try it on Android Studio. Actually the code is same as before, and work as expected. Please notice both the server and client have to connect in the same WiFi network.

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Updated@2015-11-26:
This code NOT work on Android 5, may be all 5+ version.
Fixed, refer next post "socket.getInetAddress() return null on Android 5".

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Work on Xiaomi Redmi 2, running Android 4.4.4


MainActivity.java

package com.blogspot.android_er.androidhttpserver;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.EditText;
import android.widget.TextView;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketException;
import java.util.Enumeration;

public class MainActivity extends AppCompatActivity {

 EditText welcomeMsg;
 TextView infoIp;
 TextView infoMsg;
 String msgLog = "";

 ServerSocket httpServerSocket;

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

 welcomeMsg = (EditText) findViewById(R.id.welcomemsg);
 infoIp = (TextView) findViewById(R.id.infoip);
 infoMsg = (TextView) findViewById(R.id.msg);

 infoIp.setText(getIpAddress() + ":"
 + HttpServerThread.HttpServerPORT + " ");

 HttpServerThread httpServerThread = new HttpServerThread();
 httpServerThread.start();
 }

 @Override
 protected void onDestroy() {
 super.onDestroy();

 if (httpServerSocket != null) {
 try {
 httpServerSocket.close();
 } catch (IOException e) {
 e.printStackTrace();
 }
 }
 }

 private String getIpAddress() {
 String ip = "";
 try {
 Enumeration<NetworkInterface> enumNetworkInterfaces = NetworkInterface
 .getNetworkInterfaces();
 while (enumNetworkInterfaces.hasMoreElements()) {
 NetworkInterface networkInterface = enumNetworkInterfaces
 .nextElement();
 Enumeration<InetAddress> enumInetAddress = networkInterface
 .getInetAddresses();
 while (enumInetAddress.hasMoreElements()) {
 InetAddress inetAddress = enumInetAddress.nextElement();

 if (inetAddress.isSiteLocalAddress()) {
 ip += "SiteLocalAddress: "
 + inetAddress.getHostAddress() + " ";
 }

 }

 }

 } catch (SocketException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 ip += "Something Wrong! " + e.toString() + " ";
 }

 return ip;
 }

 private class HttpServerThread extends Thread {

 static final int HttpServerPORT = 8888;

 @Override
 public void run() {
 Socket socket = null;

 try {
 httpServerSocket = new ServerSocket(HttpServerPORT);

 while(true){
 socket = httpServerSocket.accept();

 HttpResponseThread httpResponseThread =
 new HttpResponseThread(
 socket,
 welcomeMsg.getText().toString());
 httpResponseThread.start();
 }
 } catch (IOException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 }

 }

 private class HttpResponseThread extends Thread {

 Socket socket;
 String h1;

 HttpResponseThread(Socket socket, String msg){
 this.socket = socket;
 h1 = msg;
 }

 @Override
 public void run() {
 BufferedReader is;
 PrintWriter os;
 String request;

 try {
 is = new BufferedReader(new InputStreamReader(socket.getInputStream()));
 request = is.readLine();

 os = new PrintWriter(socket.getOutputStream(), true);

 String response =
 "<html><head></head>" +
 "<body>" +
 "<h1>" + h1 + "</h1>" +
 "</body></html>";

 os.print("HTTP/1.0 200" + " ");
 os.print("Content type: text/html" + " ");
 os.print("Content length: " + response.length() + " ");
 os.print(" ");
 os.print(response + " ");
 os.flush();
 socket.close();
 
 msgLog += "Request of " + request
 + " from " + socket.getInetAddress().toString() + " ";
 MainActivity.this.runOnUiThread(new Runnable() {

 @Override
 public void run() {

 infoMsg.setText(msgLog);
 }
 });

 } catch (IOException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }

 return;
 }
 }
}

layout/activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
 
 
 android_layout_width="match_parent"
 android_layout_height="match_parent"
 android_padding="16dp"
 android_orientation="vertical"
 tools_context="com.blogspot.android_er.androidhttpserver.MainActivity">

 <TextView
 android_layout_width="wrap_content"
 android_layout_height="wrap_content"
 android_layout_gravity="center_horizontal"
 android_autoLink="web"
 android_text="http://android-er.blogspot.com/"
 android_textStyle="bold" />

 <EditText
 android_id="@+id/welcomemsg"
 android_layout_width="match_parent"
 android_layout_height="wrap_content"
 android_text="Welcome from Android-er" />

 <TextView
 android_id="@+id/infoip"
 android_layout_width="wrap_content"
 android_layout_height="wrap_content" />

 <ScrollView
 android_layout_width="match_parent"
 android_layout_height="match_parent" >

 <TextView
 android_id="@+id/msg"
 android_layout_width="wrap_content"
 android_layout_height="wrap_content" />
 </ScrollView>
</LinearLayout>

Permission of "android.permission.INTERNET" is needed in AndroidManifest.xml.

Download the files (Android Studio Format) .

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