package net.itisn.com;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class MyHandlerTest extends Activity {
TextView increaseText;
TextView decreaseText;
Button startButton;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
increaseText = (TextView)this.findViewById(R.id.increase);
decreaseText = (TextView)this.findViewById(R.id.decrease);
startButton = (Button)this.findViewById(R.id.start);
increaseText.setTextSize(30);
decreaseText.setTextSize(30);
startButton.setTextSize(30);
startButton.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
// TODO Auto-generated method stub
new Thread(new IncreaseThread(updateHandler)).start();
new Thread(new DecreaseThread(updateHandler)).start();
}
});
}
class IncreaseThread extends Thread {
Handler updateHandler;
int increaseValue = 0;
public IncreaseThread(Handler updateHandler) {
this.updateHandler = updateHandler;
}
public void run() {
// TODO Auto-generated method stub
while (true) {
increaseValue++;
Message msg = Message.obtain();
msg.what = 0;
msg.arg1 = increaseValue;
updateHandler.sendMessage(msg);
try {
sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
class DecreaseThread extends Thread {
Handler updateHandler;
int decreaseValue = 100;
public DecreaseThread(Handler updateHandler) {
this.updateHandler = updateHandler;
}
public void run() {
// TODO Auto-generated method stub
while (true) {
decreaseValue--;
Message msg = Message.obtain();
msg.what = 1;
msg.arg1 = decreaseValue;
updateHandler.sendMessage(msg);
try {
sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
Handler updateHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
if (msg.what == 0) {
increaseText.setText("Increase : " + msg.arg1);
} else if (msg.what == 1) {
decreaseText.setText("Decrease : " + msg.arg1);
}
}
};
}
