timertask

Timer Task VS Alarm Manager usage in Android Service

由 我们两清 提交于 2019-11-27 06:57:22
问题 I need to fetch news/event updates from the server at regular intervals like for every 20mins in my Android App. AFAIK Intent Service and Broadcast Receiver combination will be better than using Service As I am not going to communicate with the running Service. In order to fetch events at regular intervals I know 2 options 1) Using Timer Task ScheduleAtFixedRate, I am going to start IntentService, which will fetch events once & broadcast if any updates and destroy itself. After Given Interval

Timer and TimerTask in Android

由 风格不统一 提交于 2019-11-27 06:37:02
问题 I need a timer for my program. I have written it and it works fine on PC in emulalator program (Android 1.5/2.2). But it doesn't work on the real device (Android 1.5). What am I doing wrong? TimerTask task = new TimerTask() { public void run() { if (condition) { myFunc(); } else { this.cancel(); } } }; Timer timer = new Timer(); timer.schedule(task, 500, 85); 回答1: You need to cancel() timer not the timer task. 来源： https://stackoverflow.com/questions/6477608/timer-and-timertask-in-android

Android - loop part of the code every 5 seconds

由 Deadly 提交于 2019-11-27 01:46:56
I would like to start repeating two lines of code every 5 seconds when I press the button START and end it, when I press the button STOP. I was trynig with a TimerTask and Handles, but couldn't figure it out how. public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); //final int i; final TextView textView = (TextView) findViewById(R.id.textView); final Button START_STOP = (Button) findViewById(R.id.START_STOP); final ImageView random_note = (ImageView) findViewById(R

How do you use a TimerTask to run a thread?

由 非 Y 不嫁゛ 提交于 2019-11-27 01:35:40
I'm struggling to find documentation for the TimerTask function on Android. I need to run a thread at intervals using a TimerTask but have no idea how to go about this. Any advice or examples would be greatly appreciated. Jave You use a Timer , and that automatically creates a new Thread for you when you schedule a TimerTask using any of the schedule -methods. Example: Timer t = new Timer(); t.schedule(myTimerTask, 1000L); This creates a Timer running myTimerTask in a Thread belonging to that Timer once every second. I have implemented something like this and it works fine: private Timer

TimerTask vs Thread.sleep vs Handler postDelayed - most accurate to call function every N milliseconds?

由 蹲街弑〆低调 提交于 2019-11-27 00:17:23
What is the most accurate way to call a function every N milliseconds? Thread with Thread.sleep TimerTask Handler with postDelayed I modified this example using Thread.sleep and it's not very accurate. I'm developing a music app that will play sounds at a given BPM. I understand it's impossible to create an entirely accurate metronome and I don't need to - just looking to find the best way to do this. Thanks Amol Sonawane There are some disadvantages of using Timer It creates only single thread to execute the tasks and if a task takes too long to run, other tasks suffer. It does not handle

How to use TimerTask with lambdas?

由 ぐ巨炮叔叔 提交于 2019-11-26 22:58:09
问题 As you hopefully know you can use lambdas in Java 8, for example to replace anonymous methods. An example can be seen here of Java 7 vs Java 8: Runnable runnable = new Runnable() { @Override public void run() { checkDirectory(); } }; Can be expressed as both the following ways in Java 8: Runnable runnable = () -> checkDirectory(); or Runnable runnable = this::checkDirectory; This is because Runnable is a functional interface, having only one (abstract) public non-default method. However...

Where do I create and use ScheduledThreadPoolExecutor, TimerTask, or Handler?

由 穿精又带淫゛_ 提交于 2019-11-26 18:42:17
I need to make my RSS Feed reader check the feed every 10 minutes for new posts, and then parse them if there are new ones. I also need to update the UI about every minute. I have read and heard different things from various sources. My current understanding is that I can use ScheduledThreadPoolExecutor to make two scheduled threads, and one of them needs a Handler for updating the UI. I am unsure about what the most efficient use of these classes or TimerTask . I am also very uncertain about where to make subclasses of these. One friend suggested extending TimerTask as an inner class in my

Android: Accessing UI Element from timer thread

由 大城市里の小女人 提交于 2019-11-26 14:13:23
问题 public Button stb; static int cnt=0; public ArrayList<RadioButton> Butgrp1 = new ArrayList<RadioButton>(); Timer myt; TimerTask t; stb.setOnClickListener(new OnClickListener() { public void onClick(View v) { myt.mschedule(new TimerTask() { @Override public void run() { // TODO Auto-generated method stub System.out.println("Entering run"); Handler h=new Handler(); h.post(new Runnable() { public void run() { // TODO Auto-generated method stub runOnUiThread(new Runnable() { public void run() { /

How do you use a TimerTask to run a thread?

由 送分小仙女□ 提交于 2019-11-26 09:42:49
问题 I\'m struggling to find documentation for the TimerTask function on Android. I need to run a thread at intervals using a TimerTask but have no idea how to go about this. Any advice or examples would be greatly appreciated. 回答1: You use a Timer, and that automatically creates a new Thread for you when you schedule a TimerTask using any of the schedule -methods. Example: Timer t = new Timer(); t.schedule(myTimerTask, 1000L); This creates a Timer running myTimerTask in a Thread belonging to that

Where do I create and use ScheduledThreadPoolExecutor, TimerTask, or Handler?

由 こ雲淡風輕ζ 提交于 2019-11-26 06:31:20
问题 I need to make my RSS Feed reader check the feed every 10 minutes for new posts, and then parse them if there are new ones. I also need to update the UI about every minute. I have read and heard different things from various sources. My current understanding is that I can use ScheduledThreadPoolExecutor to make two scheduled threads, and one of them needs a Handler for updating the UI. I am unsure about what the most efficient use of these classes or TimerTask . I am also very uncertain about
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