Android Open Source - MessengerApp Main Activity

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Back to project page MessengerApp.

License

The source code is released under:

MIT License

Java Source Code

package com.example.myfirstapp;
//  w  ww .j a v a  2  s  .co  m
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Queue;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.Random;

import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v7.app.ActionBarActivity;
import android.telephony.SmsManager;
import android.text.Html;
import android.text.Html.ImageGetter;
import android.text.SpannableString;
import android.text.style.ImageSpan;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ScrollView;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends ActionBarActivity {
  public static int[] mThumbIds = {
    R.drawable.face1,
    R.drawable.face2,
    R.drawable.face3,
    R.drawable.face4,
    R.drawable.face5,
    R.drawable.face6,
    R.drawable.face7
    };
  private static final String TASK_FRAGMENT = "task_fragment";
  private EditText numberText;
  private EditText contentText;
  private TextView textView;
  private TcpSender tcpSender;
  private Thread senderThread;
  private TcpReceiver tcpReceiver;
  private Thread receiverThread;
  private UdpBroadcaster udpBroadcaster;
  private Thread broadcasterThread;
  private UdpClient udpClient;
  private Thread clientThread;
  private Queue<String> uiMessageQueue;
  private Handler mHandler;
  private Fragment mFragment;
  private View fragmentFace;
  private ScrollView scrollView;
  private ImageGetter imageGetter;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    
    FragmentManager fm = getSupportFragmentManager();
    mFragment = fm.findFragmentByTag(TASK_FRAGMENT);

    if (mFragment == null) {
      mFragment = new PlaceholderFragment();
      fm.beginTransaction().add(mFragment, TASK_FRAGMENT).commit();
    }
    
    setContentView(R.layout.fragment_main);
    
    ButtonClickListener bc=new ButtonClickListener();
    textView=(TextView) this.findViewById(R.id.display);
    numberText=(EditText) this.findViewById(R.id.To);
    contentText=(EditText) this.findViewById(R.id.edit_message);
    scrollView = (ScrollView) this.findViewById(R.id.scrollView1);
    Button button=(Button) this.findViewById(R.id.button_send);
    button.setOnClickListener(bc);
    Button showExression=(Button) this.findViewById(R.id.edit);
    
    final ViewGroup linear = (ViewGroup) this.findViewById(R.id.linear);
    fragmentFace = this.getLayoutInflater().inflate(R.layout.fragment_face, linear, false);
    // Set fragmentFace's visibility to GONE so it won't show when added
    fragmentFace.setVisibility(View.GONE);
    // Add fragmentFace to fragment_main
    linear.addView(fragmentFace);
    // Added click listener for button 'image'
    showExression.setOnClickListener(new OnClickListener(){
      public void onClick(View view){
        if(fragmentFace.getVisibility() == View.GONE) {
          // Toggle the view to visible if it is not
          fragmentFace.setVisibility(View.VISIBLE);
        } else {
          // Toggle the view to hidden if it is visible
          fragmentFace.setVisibility(View.GONE);
        }
      }
    });
    
    imageGetter = new ImageGetter() {
      @Override
      public Drawable getDrawable(String source) {
        int id = Integer.parseInt(source);
        Drawable d = MainActivity.this.getResources().getDrawable(id);
        d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());
        return d;
      }
    };
    
      ImageButton ib1=(ImageButton) this.findViewById(R.id.imageFace1);
      ImageButton ib2=(ImageButton) this.findViewById(R.id.imageFace2);
      ImageButton ib3=(ImageButton) this.findViewById(R.id.imageFace3);
      ImageButton ib4=(ImageButton) this.findViewById(R.id.imageFace4);
      ImageButton ib5=(ImageButton) this.findViewById(R.id.imageFace5);
      ImageButton ib6=(ImageButton) this.findViewById(R.id.imageFace6);
      ImageButton ib7=(ImageButton) this.findViewById(R.id.imageFace7);
      

    //  ib.setImageResource(R.drawable.face1);
      //send face1 
      ib1.setOnClickListener(new OnClickListener(){
        public void onClick(View view){
          try{
            imageSenigSameCode(1);
          }
        catch(Exception e){
          e.printStackTrace();
          }
        }  
      });
      
      //send face2
      ib2.setOnClickListener(new OnClickListener(){
        public void onClick(View view){
          try{
            imageSenigSameCode(2);
          }
        catch(Exception e){
          e.printStackTrace();
          }
        }  
      });
      
      //send face3
      ib3.setOnClickListener(new OnClickListener(){
        public void onClick(View view){
          try{
            imageSenigSameCode(3);
          }
        catch(Exception e){
          e.printStackTrace();
          }
        }  
      });
      
      //send face4
      ib4.setOnClickListener(new OnClickListener(){
        public void onClick(View view){
          try{
            imageSenigSameCode(4);
          }
        catch(Exception e){
          e.printStackTrace();
          }
        }  
      });
      //send face5
      ib5.setOnClickListener(new OnClickListener(){
        public void onClick(View view){
          try{
            imageSenigSameCode(5);
          }
        catch(Exception e){
          e.printStackTrace();
          }
        }  
      });
      //send face6
      ib6.setOnClickListener(new OnClickListener(){
        public void onClick(View view){
          try{
            imageSenigSameCode(6);
          }
        catch(Exception e){
          e.printStackTrace();
          }
        }  
      });
      //send face7
      ib7.setOnClickListener(new OnClickListener(){
        public void onClick(View view){
          try{
            imageSenigSameCode(7);
          }
        catch(Exception e){
          e.printStackTrace();
          }
        }  
      });
      
      
    // Bind Handler with main Looper
    mHandler = new Handler(Looper.getMainLooper()) {
      // Tell main looper to poll uiMessageQueue
      @Override
      public void handleMessage(Message signalMessage) {
        super.handleMessage(signalMessage);
        String message = uiMessageQueue.poll();
        Activity mainActivity = mFragment.getActivity();
        if(mainActivity != null) {
          textView=(TextView) mainActivity.findViewById(R.id.display);
          System.out.println("::handler: textView = " + textView);
        } else {
          System.out.println("::mainActivity is null");
        }
        if(message != null) {
          if(textView != null) {
            textView.append(Html.fromHtml(message, imageGetter, null));
            textView.append("\n");
            scrollDown();
          } else {
            System.out.println("::textView is null");            
          }
        } else {
          System.out.println("::No new message");
        }
      }
    };
    // Create a queue to store incoming message
    uiMessageQueue = new ArrayBlockingQueue<String>(50);
  }
  
  @Override
  protected void onStart() {
    super.onStart();
    // Launch TCP Sender
    tcpSender = new TcpSender();
    senderThread = new Thread(tcpSender);
    senderThread.start();
    // Launch TCP Receiver
    tcpReceiver = new TcpReceiver(tcpSender, uiMessageQueue, mHandler);
    receiverThread = new Thread(tcpReceiver);
    receiverThread.start();
    // Launch UDP Broadcaster
    udpBroadcaster = new UdpBroadcaster();
    broadcasterThread = new Thread(udpBroadcaster);
    broadcasterThread.start();
    // Launch UDP Client
    udpClient = new UdpClient(tcpSender);
    clientThread = new Thread(udpClient);
    clientThread.start();
  }
  
  @Override
  protected void onStop() {
    super.onStop();
    senderThread.interrupt();
    tcpReceiver.close();
    receiverThread.interrupt();
    broadcasterThread.interrupt();
    clientThread.interrupt();
  }
  
  private void scrollDown() {
    mHandler.post(new Runnable() {

      @Override
      public void run() {
        MainActivity.this.scrollView.fullScroll(View.FOCUS_DOWN);
      }
      
    });
  }
  
  public void imageSenigSameCode(int x) throws NoSuchFieldException, NumberFormatException, IllegalAccessException, IllegalArgumentException{
    String cs = "<img src='" + mThumbIds[x-1] + "'/>";
    tcpSender.send(cs);
  }
  
  private final class ButtonClickListener implements View.OnClickListener{
    
    public void onClick(View v){
      if("".equals(contentText.getText().toString())) {
        new Thread(new Runnable() {
  
          @Override
          public void run() {
            InetAddress ip = null;
            try {
              ip = InetAddress.getByName(contentText.getText().toString());
              tcpSender.addReceiver(ip);
            } catch (UnknownHostException e) {
              // Ignore
            }
          }
          
        }).start();
      }
      String content= contentText.getText().toString();
      tcpSender.send(content);
      contentText.setText("");
      scrollDown();
      Toast.makeText(MainActivity.this,R.string.success,Toast.LENGTH_LONG).show();;
    }
    
  }
    
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {

    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    if (id == R.id.action_settings) {
      return true;
    }
    return super.onOptionsItemSelected(item);
  }

  /**
   * A placeholder fragment containing a simple view.
   */
  public static class PlaceholderFragment extends Fragment {
    Activity mainActivity;
    
    public PlaceholderFragment() {
    }
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setRetainInstance(true);
      System.out.println("::Fragment created");
    }
    
    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        mainActivity = activity;
      System.out.println("::Fragment attached");
        
    }
    
    @Override
      public void onDetach() {
        super.onDetach();
        mainActivity = null;
      System.out.println("::Fragment detached");
    }
    
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
      View rootView = inflater.inflate(R.layout.fragment_main, container,
          false);
      return rootView;
    }
    
    public Activity getMainActivity() {
      return this.mainActivity;
    }
  }
    
  

}

Java Source Code List

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