smsreceive.java

来自「J2ME核心类及MIDlet类 MIDP用户界面对象 图形处理及低级事件处」· Java 代码 · 共 109 行

import javax.microedition.midlet.*;
import javax.microedition.io.*;
import javax.microedition.lcdui.*;
import javax.wireless.messaging.*;

import java.io.IOException;

public class SMSReceive extends MIDlet 
    implements CommandListener, Runnable, MessageListener {
   
    Command exitCommand  = new Command("Exit", Command.EXIT, 2);
    Alert content;
    Display display;
    Thread thread;
    String[] connections;
    boolean done;
    String smsPort;
    MessageConnection smsconn;
    Message msg;
    Displayable resumeScreen;

    public SMSReceive() {
        smsPort = getAppProperty("SMS-Port");

        display = Display.getDisplay(this);

        content = new Alert("SMS Receive");
        content.setTimeout(Alert.FOREVER);
        content.addCommand(exitCommand);
        content.setCommandListener(this);
        content.setString("Receiving...");
        
        resumeScreen = content;
    }

    public void startApp() {

	    String smsConnection = "sms://:" + smsPort;

        if (smsconn == null) {
            try {
                smsconn = (MessageConnection) Connector.open(smsConnection);
                smsconn.setMessageListener(this);
            } catch (IOException ioe) {
                ioe.printStackTrace();
            }
        }

        connections = PushRegistry.listConnections(true);
        if (connections == null || connections.length == 0) {
            content.setString("等待短信 " + smsPort + "...");
        }
        done = false;
        thread = new Thread(this);
        thread.start();

        display.setCurrent(resumeScreen);
    }

    public void notifyIncomingMessage(MessageConnection conn) {
        if (thread == null) {
            done = false;
            thread = new Thread(this);
            thread.start();
        }
    }

    public void run() {		    
        try {
            msg = smsconn.receive();
            if (msg != null && msg instanceof TextMessage) {
                String address = msg.getAddress(); 
                content.setTitle("From: " + address);
                content.setString(((TextMessage)msg).getPayloadText());
                display.setCurrent(content);
            }
        } catch (IOException e) {
        }
    }

    public void pauseApp() {
        done = true;
        thread = null;
        resumeScreen = display.getCurrent();
    }

    public void destroyApp(boolean unconditional) {
        done = true; 
        thread = null;
        if (smsconn != null) {
            try {
                smsconn.close();
            } catch (IOException e) {
            }
        }
    }

	public void commandAction(Command c, Displayable s) {
        try {
            if (c == exitCommand || c == Alert.DISMISS_COMMAND) {
                destroyApp(false);
                notifyDestroyed();
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}