I've looked around and nothing seems to be working from what I've tried so far...
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.deskclock);
TextView tvTime = (TextView) findViewById(R.id.tvTime);
TextView tvDate = (TextView) findViewById(R.id.tvDate);
java.util.Date noteTS = Calendar.getInstance().getTime();
String time = "hh:mm"; // 12:00
tvTime.setText(DateFormat.format(time, noteTS));
String date = "dd MMMMM yyyy"; // 01 January 2013
tvDate.setText(DateFormat.format(date, noteTS));
I basically want the setText methods to update or refresh every second or so, so my clock actually works like it should do. I've seen methods like handlers and run and nothing worked so any help with this would be great thanks. :)
It would be better if you just used an AsyncTask running using a Timer something like this
Timer LAIATT = new Timer();
TimerTask LAIATTT = new TimerTask()
{
@Override
public void run()
{
LoadAccountInformationAsyncTask LAIAT = new LoadAccountInformationAsyncTask();
LAIAT.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
}
};
LAIATT.schedule(LAIATTT, 0, 1000);
Extending @endian 's answer, you could use a thread and call a method to update the TextView. Below is some code I made up on the spot.
java.util.Date noteTS;
String time, date;
TextView tvTime, tvDate;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.deskclock);
tvTime = (TextView) findViewById(R.id.tvTime);
tvDate = (TextView) findViewById(R.id.tvDate);
Thread t = new Thread() {
@Override
public void run() {
try {
while (!isInterrupted()) {
Thread.sleep(1000);
runOnUiThread(new Runnable() {
@Override
public void run() {
updateTextView();
}
});
}
} catch (InterruptedException e) {
}
}
};
t.start();
}
private void updateTextView() {
noteTS = Calendar.getInstance().getTime();
String time = "hh:mm"; // 12:00
tvTime.setText(DateFormat.format(time, noteTS));
String date = "dd MMMMM yyyy"; // 01 January 2013
tvDate.setText(DateFormat.format(date, noteTS));
}
If you want to show time on textview then better use Chronometer or TextClock
Using Chronometer:This was added in API 1. It has lot of option to customize it.
Your xml
<Chronometer
android:id="@+id/chronometer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="30sp" />
Your activity
Chronometer mChronometer=(Chronometer) findViewById(R.id.chronometer);
mChronometer.setBase(SystemClock.elapsedRealtime());
mChronometer.start();
Using TextClock: This widget is introduced in API level 17. I personally like Chronometer.
Your xml
<TextClock
android:id="@+id/textClock"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="30dp"
android:format12Hour="hh:mm:ss a"
android:gravity="center_horizontal"
android:textColor="#d41709"
android:textSize="44sp"
android:textStyle="bold" />
Thats it, you are done.
You can use any of these two widgets. This will make your life easy.
You can use Timer instead of Thread. This is whole my code
package dk.tellwork.tellworklite.tabs;
import java.util.Timer;
import java.util.TimerTask;
import android.annotation.SuppressLint;
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;
import dk.tellwork.tellworklite.MainActivity;
import dk.tellwork.tellworklite.R;
@SuppressLint("HandlerLeak")
public class HomeActivity extends Activity {
Button chooseYourAcitivity, startBtn, stopBtn;
TextView labelTimer;
int passedSenconds;
Boolean isActivityRunning = false;
Timer timer;
TimerTask timerTask;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.tab_home);
chooseYourAcitivity = (Button) findViewById(R.id.btnChooseYourActivity);
chooseYourAcitivity.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
//move to Activities tab
switchTabInActivity(1);
}
});
labelTimer = (TextView)findViewById(R.id.labelTime);
passedSenconds = 0;
startBtn = (Button)findViewById(R.id.startBtn);
startBtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if (isActivityRunning) {
//pause running activity
timer.cancel();
startBtn.setText(getString(R.string.homeStartBtn));
isActivityRunning = false;
} else {
reScheduleTimer();
startBtn.setText(getString(R.string.homePauseBtn));
isActivityRunning = true;
}
}
});
stopBtn = (Button)findViewById(R.id.stopBtn);
stopBtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
timer.cancel();
passedSenconds = 0;
labelTimer.setText("00 : 00 : 00");
startBtn.setText(getString(R.string.homeStartBtn));
isActivityRunning = false;
}
});
}
public void reScheduleTimer(){
timer = new Timer();
timerTask = new myTimerTask();
timer.schedule(timerTask, 0, 1000);
}
private class myTimerTask extends TimerTask{
@Override
public void run() {
// TODO Auto-generated method stub
passedSenconds++;
updateLabel.sendEmptyMessage(0);
}
}
private Handler updateLabel = new Handler(){
@Override
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
//super.handleMessage(msg);
int seconds = passedSenconds % 60;
int minutes = (passedSenconds / 60) % 60;
int hours = (passedSenconds / 3600);
labelTimer.setText(String.format("%02d : %02d : %02d", hours, minutes, seconds));
}
};
public void switchTabInActivity(int indexTabToSwitchTo){
MainActivity parentActivity;
parentActivity = (MainActivity) this.getParent();
parentActivity.switchTab(indexTabToSwitchTo);
}
}
You can also use TimerTask for that.
Here is an method
private void setTimerTask() {
long delay = 3000;
long periodToRepeat = 60 * 1000; /* 1 mint */
Timer timer = new Timer();
timer.schedule(new TimerTask() {
@Override
public void run() {
runOnUiThread(new Runnable() {
@Override
public void run() {
// do your stuff here.
}
});
}
}, 3000, 3000);
}
This Code work for me..
//Get Time and Date
private String getTimeMethod(String formate)
{
Date date = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat(formate);
String formattedDate= dateFormat.format(date);
return formattedDate;
}
//this method is used to refresh Time every Second
private void refreshTime() //Call this method to refresh time
{
new Timer().schedule(new TimerTask() {
@Override
public void run() {
runOnUiThread(new Runnable() {
@Override
public void run() {
txtV_Time.setText(getTimeMethod("hh:mm:ss a")); //hours,Min and Second with am/pm
txtV_Date.setText(getTimeMethod("dd-MMM-yy")); //You have to pass your DateFormate in getTimeMethod()
};
});
}
}, 0, 1000);//1000 is a Refreshing Time (1second)
}
It's a very old question and I'm sure there are a lot of resources out there. But it's never too much to spread the word to be at the safe side. Currently, if someone else ever want to achieve what the OP asked, you can use: android.widget.TextClock.
TextClock documentation here.
Here's what I've used:
<android.widget.TextClock
android:id="@+id/digitalClock"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:timeZone="GMT+0000" <!--Greenwich -->
android:format24Hour="dd MMM yyyy k:mm:ss"
android:format12Hour="@null"
android:textStyle="bold"
android:layout_alignParentEnd="true" />
Use TextSwitcher (for nice text transition animation) and timer instead.
Source: Stackoverflow.com