Android Open Source - mobile-chat Chat Activity

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Back to project page mobile-chat.

License

The source code is released under:

GNU General Public License

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Java Source Code

package br.unirio.livechat;
//from w  w  w .  j  a  v  a  2s  .c  o  m
import android.app.Activity;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import br.com.etyllica.mobile.gui.HorizontalRule;
import br.com.etyllica.sonat.adapter.mina.client.MinaClient;
import br.com.etyllica.sonat.client.Client;
import br.com.etyllica.sonat.client.ClientListener;

public class ChatActivity extends Activity implements ClientListener {

  private LinearLayout messages;
  
  private EditText textField;

  private TextView lista;

  private Client client;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    
    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

    setContentView(R.layout.chat);

    lista = (TextView) findViewById(R.id.lista_pessoas);

    Bundle bundle = getIntent().getExtras();

    String serverAddress = bundle.getString(LoginActivity.SERVER_ADDRESS);

    messages = (LinearLayout)findViewById(R.id.mensagens);
    
    addMessage(messages, "Servidor", "Hello!");
    
    //Start Client
    startClient(serverAddress);

  }
  
  private void startClient(String serverAddress) {

    try {

      client = new MinaClient(serverAddress, LoginActivity.DEFAULT_PORT);
      
      client.setListener(ChatActivity.this);

      Button sendButton = (Button) findViewById(R.id.botao_enviar);

      configureSendButton(sendButton);

      client.init();

    } catch (Exception e) {
      
      backToLoginScreen();
      
    }
    
  }

  private void configureSendButton(Button sendButton) {

    sendButton.setOnClickListener(new View.OnClickListener() {

      @Override
      public void onClick(View v) {

        textField = (EditText) findViewById(R.id.texto_mensagem);   

        String message = textField.getText().toString();

        if(!message.isEmpty()) {

          client.sendMessage(message);
          
          addMessage(messages, "Eu: ", message);
          
          textField.setText("");
          
        }

      }

    });

  }

  private void addMessage(LinearLayout layout, String usuario, String message) {

    TextView messageView = new TextView(this);

    //messageView.setText(usuario+": "+message);
    messageView.setText(message);

    layout.addView(messageView, new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
    layout.addView(new HorizontalRule(this));

  }

  @Override
  public void updateNames(String[] names) {
    String text = "Pessoas: ";
    
    text+= names[0];
    
    for(int i=1;i<names.length;i++) {
      text += " ";
      text += names[i];
    }
    
    lista.setText(text);
  }

  @Override
  public void receiveMessage(String name, String message) {
    Toast.makeText(this, name+": "+message, Toast.LENGTH_LONG).show();
    
    addMessage(messages, name, message);
  }
  
  private void backToLoginScreen() {
    
    Toast.makeText(this, "Nenhum Servidor foi encontrado", Toast.LENGTH_LONG).show();
    
    Intent intent = new Intent(ChatActivity.this, LoginActivity.class);

      startActivity(intent);
      
      ChatActivity.this.finish();
    
  }

}

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