package cn.yo2.aquarium.android.testtimer;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class TestTimer extends Activity {
private Button btnStart;
private Button btnStop;
private Button btnReset;
private TextView tvCounter;
private long count = 0;
private boolean run = false;
private Handler handler = new Handler();
private Runnable task = new Runnable() {
public void run() {
// TODO Auto-generated method stub
if (run) {
handler.postDelayed(this, 1000);
count++;
}
tvCounter.setText("Count: " + count);
}
};
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
btnStart = (Button) findViewById(R.id.Button01);
btnStop = (Button) findViewById(R.id.Button02);
btnReset = (Button) findViewById(R.id.Button03);
tvCounter = (TextView) findViewById(R.id.counter);
btnStart.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
run = true;
updateButton();
handler.postDelayed(task, 1000);
}
});
btnStop.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
run = false;
updateButton();
handler.post(task);
}
});
btnReset.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
count = 0;
run = false;
updateButton();
handler.post(task);
}
});
}
private void updateButton() {
btnStart.setEnabled(!run);
btnStop.setEnabled(run);
}
}