Update TextView Every Second

Question

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

User · Answer

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

User · Answer

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

User · Answer

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  lt Chronometer     android id  quot   id chronometer quot      android layout width  quot wrap content quot      android layout height  quot wrap content quot      android textSize  quot 30sp quot    gt   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  lt TextClock     android id  quot   id textClock quot      android layout width  quot fill parent quot      android layout height  quot wrap content quot      android layout marginTop  quot 30dp quot      android format12Hour  quot hh mm ss a quot      android gravity  quot center horizontal quot      android textColor  quot  d41709 quot      android textSize  quot 44sp quot      android textStyle  quot bold quot    gt   Thats it  you are done  You can use any of these two widgets  This will make your life easy

User · Answer

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

User · Answer

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     lt android widget TextClock     android id    id digitalClock      android layout width  wrap content      android layout height  wrap content      android timeZone  GMT 0000   lt  --Greenwich -- gt      android format24Hour  dd MMM yyyy   k mm ss      android format12Hour   null      android textStyle  bold      android layout alignParentEnd  true    gt

User · Answer

Use TextSwitcher  for nice text transition animation  and timer instead

User · Answer

Add following code in your onCreate   method   Thread thread   new Thread         Override   public void run         try         while   thread isInterrupted              Thread sleep 1000           runOnUiThread new Runnable                Override           public void run                    update TextView here                                        catch  InterruptedException e                  thread start      This code starts an thread which sleeps 1000 milliseconds every round

User · Answer

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

User · Answer

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

[android] Update TextView Every Second

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