Android Open Source - Android_CommandlineLikeDisplay Commandline Like Display Activity

• Back to Development/tool  ↑

From Project

Back to project page Android_CommandlineLikeDisplay.

License

The source code is released under:

Copyright (c) 2011, Jerome Schneider All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met...

Java Source Code

package cld.CommandlineLikeDisplay;
//from  w  w w . j av a2 s .com
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import java.util.ArrayList;


public class CommandlineLikeDisplayActivity extends Activity {
  
    private ArrayAdapter <String> mMessageArray;
    private ArrayList<String> consoleText = new ArrayList<String>();
    private ListView mMessageView;
        private EditText txtInput;
        private CLDMessage myCLDMessage;
        private backendThread myBackendThread;
        
        
        //MENU
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            MenuInflater inflater = getMenuInflater();
            inflater.inflate(R.menu.main_menu, menu);
            return true;
        }
        
        //Menu Click Event
        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
            // Handle item selection
            switch (item.getItemId()) {
                case R.id.quit:
                  myCLDMessage.print_normal("quit");
                    this.myBackendThread.stopService();
                    return true;
                default:
                    return super.onOptionsItemSelected(item);
            }
        }
        
        
       @Override 
        public void onSaveInstanceState(Bundle savedInstanceState){
          savedInstanceState.putStringArrayList("ConsoleText", consoleText);
          savedInstanceState.putString("EditBox",txtInput.getText().toString());
        } 
        
       @Override
       public void onRestoreInstanceState(Bundle savedInstanceState){
         //restore saved settings (console text and input box text)
         txtInput.setText(savedInstanceState.getString("EditBox"));
         ArrayList <String> newConsole = savedInstanceState.getStringArrayList("ConsoleText");
         //restore messageArray's contents
         for(int i=0; i<newConsole.size(); i++){
           mMessageArray.add(newConsole.get(i));
         }
         //restore consoleText's contents
         consoleText=newConsole;
       }
    
      /** Called when the activity is first created. */
      @Override
      public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.main);
          setup();
      }
      
      //Used to setup the display and the service
      private void setup(){
        //Sets up the UI
        mMessageArray = new ArrayAdapter<String>(this, R.layout.message);
        //grabs the old console text from the savedInstanceState of consoleText
        for(int i=0; i<consoleText.size(); ++i){
          mMessageArray.add(consoleText.get(i));
        }
        mMessageView = (ListView) findViewById(R.id.ListMessages);
        mMessageView.setAdapter(mMessageArray);
        txtInput = (EditText)findViewById(R.id.txtInput);
        myCLDMessage = new CLDMessage(mHandler);
        
          //button listener
          final Button buttonCls = (Button) findViewById(R.id.btnCls);
          buttonCls.setOnClickListener(new View.OnClickListener() {
              public void onClick(View v) {
                  clearDisplay();
              }
          });
          
          //button listener
          final Button buttonStart = (Button) findViewById(R.id.btnStart);
          buttonStart.setOnClickListener(new View.OnClickListener() {
              public void onClick(View v) {
                myCLDMessage.clearQueue();
              myBackendThread = new backendThread();
                myBackendThread.start();
              }
          });
          
          final Button buttonGo = (Button) findViewById(R.id.btnGo);
          buttonGo.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
          getText();
        }
          });
          
          txtInput.setOnKeyListener(new View.OnKeyListener() {
        
        public boolean onKey(View v, int keyCode, KeyEvent event) {  
          if( keyCode == KeyEvent.KEYCODE_ENTER && event.getAction() == KeyEvent.ACTION_DOWN){
            getText();
            return true;
          }
          else{
            return false;
          }
        }
      });
          
          final Button buttonClr = (Button) findViewById(R.id.btnClr);
          buttonClr.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
          txtInput.setText("");
        }
          });
      }
      
      private void getText(){
        myCLDMessage.getLineFromInput(txtInput.getText().toString());
      }
     
      //Used to clear the display
      private void clearDisplay(){
        mMessageArray.clear();
        consoleText.clear();
      }
      
      //Handler used for receiving messages from the service
      private final Handler mHandler = new Handler(){
        @Override
        public void handleMessage( Message msg ){
          byte[] writeBuf;
          String messageString;
          switch(msg.what){
          case Constants.MSG_DEBUG:
            if(Constants.DEBUG){
              writeBuf = (byte[]) msg.obj;
              messageString = new String(writeBuf);
              consoleText.add(messageString);
              mMessageArray.add(messageString);
              mMessageView.setSelection(mMessageView.getCount() - 1);
            }
            break;
          case Constants.MSG_NORMAL:
            writeBuf = (byte[]) msg.obj;
            messageString = new String(writeBuf);
            consoleText.add(messageString);
            mMessageArray.add(messageString);
            mMessageView.setSelection(mMessageView.getCount() - 1);
            break;
          }
        }
      };
      
      private class backendThread extends Thread{
      
        private ExampleService myService;
        
        public void run(){
          ///////////////////////////////////////////////
          //TODO
          //
          //Here you call the constructor or a setup function for
          //your class, it is important to pass in mHandler so
          //that in your class you can create a CLDMessage object
          //used for sending data to the UI
          ///////////////////////////////////////////////
          myService = new ExampleService(myCLDMessage);
            ///////////////////////////////////////////////
            //TODO
            //
            //Here you can set the start button to 
              //call a function in your class   
            ///////////////////////////////////////////////
                myService.start();
        }
        
        public void stopService(){
          myService.stop();
        }
        
      }
  }

Java Source Code List

• Back to Development/tool  ↑