I developed one small application to display some text at defined intervals in the android emulator screen.I am using Handler class, small snippet from my code...
When i run this appication the text is displayed only one time.Please any one knows how to run a thread using Handler.
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Does anyone know how to delete certain texts from a thread in an easy manner instead of having to delete a whole thread??
View 7 Replies View RelatedI'm having hard times getting my GL thread (from GLSurfaceView) to trigger some code execution within the UI thread (from Activity). I tried it in every possible way (well not every, I missed at least the good one) none worked.
My idea was to get something called from the UI thread (to update some widgets) when the surface is effectively created. So I added to my onSurfaceCreated method the following call:
CODE:.............
This compiles, but when my GLSurfaceView sub-class is constructed a NoClassDefFound exception is thrown, telling me that the class com.my.package.MyGLSurfaceView$1 is not found.
Here's the log:
CODE:.............
The line 297 in MySurfaceView.java is:
private Runnable mUpdater = new Runable () { public void run () { [...] } };
I didn't found clear answer for why my code does not work. I assume it is because I am trying to update textview from runnable. Anybody know some workaround? Code isn't clean off course, I am happy to get that working so far as I am totally new in java.
CODE:...............................
In an existing Android project I've encountered the following piece of code (where I inserted the debugging litter) code...
with not a trace of the messages from the Runnable. So appearantly the Runnable doesn't run(), although img.post() returns true. Pulling the ImageView in onCreate() and declaring it final doesn't help.
I'm clueless. Simply setting the bitmap directly, while blocking the UI thread, does fix things, but I want to get things right. Does anybody understand what's going on here?
(ps. this was all observed on an Android 1.6 phone and android-3 sdk)
I want to send a broadcast from a new thread is start.
This is what i tried:
CODE:............
But ofcourse i need context..this won't work. How can i handle this.
I have looked at every discussion and thread I can find on getting this to work but it is not. I have a simple timer that updates a text view (mTimeTextField in the example below). The mUpdateTimeTask run method is being executed correctly (every second) but the UI/text field is not being updated.
Here is the code:....................
I'm trying to do an insert to a DB as a result of a user clicking on a button. I want to do the actual insert in the background, so it seems I should use a Handler to do this. The SQLite insert method takes a Context parameter. My problem is how do I get a valid Context inside the Runnable that will do the insert?
View 4 Replies View RelatedI have an "open" animation and am using Handler.postDelayed(Runnable, delay) to trigger a "close" animation after a short delay. However, during the time between open and close, there is possibly another animation triggered by a click...my question is, how would I cancel the "close" animation in the handler?
View 1 Replies View RelatedI have a Thread that downloads data from internet
CODE:..........................
There is an activity that needs to be updated according to downloaded data.
CODE:............................
Whenever I run above code I get NullPointer Exception .Please help me to update the view.
I want to place an animated marker showing a user's current location in an Overlay over a MapActivity. I need to be able to turn the animation on and off.
I thought this could be accomplished as follows:
CODE:..............
The constructor is invoked from the main MapActivity.onResume() using
locationOverlay = MyLocationOverlay(this)
And the animate/draw is invoked by
CODE:.................
However, the run() method never seems to be invoked.
How can I implement a run() method of thread if I create a Thread Global?
I mean If I create a Thread Globally then can I implement its run() method {" public void run()"} anywhere in my Application?
In the run() method I have to write the code to perform some action.
IF I can do it then please can anyone show me briefly how to do it particularly.
I am writing an application in which i need to handle messages between the main thread(the deafult UI related thread) and the user created Gamethread.
The requirement is like this.
An activity(say "Activity_X") is setting the view by "setContentView(some "View_Y")". In "Activity_X" i have implemeted "onCreateOptionsMenu()" and "onOptionsItemSelected()" fucntions for creating menus & a switch case for action to be taken on selecting those menus.Menu has items like "resume/pause/zoom/" .
All action to be take on selecting these menus are implemented in "View_Y" in a separate Gamethread by extending "Thread" class.
So whenever a menu is selected in "Activity_X" i need to send a message to "View_Y". And on receiving this ,a particular action/method should be called in View_Y(GameThread).
How can i achieve this using Handlers?Is there any other way of doing this? Please do share with me some code snippets for these.
I have a separate thread running to get data from the internet. After that, I would like to update the ListView in the main thread by calling adapter.notifyDataSetChanged(). But it does not work. Any workaround for that?
View 1 Replies View RelatedI want to do the drawing in another thread to speed up the game(it is way to slow right now). I was told to do this but don't quite understand why that would speed things up. Is it GameView that should implement Runnable? Should I make the thread sleep when not drawing? where should I start the thread? package com.android.WWS;
import android.app.Activity; import android.content.Context; import android.graphics.*; import android.os.Bundle; import android.view.SurfaceView; import android.view.KeyEvent; import android.view.View; import android.view.View.OnKeyListener; import java.lang.Runnable; import java.lang.Thread;...................
I need to suspend/resume a thread from another thread in the same process. I tried to look into thread apis,but I couldn't figured out a way to achieve this.Can anyone pls point me some references to look or give a tip to do this.
View 2 Replies View RelatedI'm trying to call a method from inside a Runnable that is running. It waits for a string to be entered and when it is then depending on the string (the strings act as commands) it calls a method and is supposed to run whats inside it. code...
View 2 Replies View RelatedThe Android doc says "Like activities and the other components, services run in the main thread of the application process." Is the main thread here the same thing as UI thread?
View 3 Replies View RelatedCan I use progress bar in android, without the thread?
View 1 Replies View RelatedIn my android app i have an ui-update-thread that keeps all my views up-to-date.
Code...
within onStop() to prevent the thread from running all the time. if i don't do this, it would keep running even if i close the app!
problem is: how do i bring this thread back to life when returning from some other activity to this one? run() doesn't work, calling the initial start() in some other method like onResume() crashes the app.
Occasionally I see thread execution hiccups on my Motorola Droid (currently running 2.1 but I saw it with 2.0.1, too). Normally my dummy thread (full tilt, foreground, not doing *anything* else) runs in about 5-6mS. However, I see a second hump around 13-14mS and stragglers anywhere out to 80mS (typically around 35mS, though). What is going on? Why is this scheduling so non-deterministically? What is the solution? I could deal with a couple mS slower if it would get rid of those stragglers that exist the whole way out to 50-80mS..................
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View 49 Replies View RelatedThere are a ton of activity stack related questions on StackOverflow, but I didn't really see any that answered the question I have. I'm working on an online game that (for now) has 3 different activities Login/Register Menu (seen when logged in, includes "new game", "my stats", and a few other things...I'm just worried about the "new game" option for now.
View 1 Replies View RelatedMy application is basically a image viewer. It is opened from both camera and as a separate application.
I open the image viewer to view and edit the picture. Each edit operation is implemented using thread. If my application closes due to pressing the home button, the next time I open it with camera. It throws anr.
This doesn't always happen. Only when large edit operations or edit operations on large image files are done.
I get out of memory error, sometimes timeout.
I guess it s because the thread doesn't complete the edit operation when home is clicked. and it s still running on the background. so when i open it s unable to process it.
m I right?
If so what is the way to stop a thread before the completion?
I am trying to make facebook asynchronous non blocking thread in android. due to which our UI is run separate thread but i am unable to do that can any one tell me how to do that.
and If possible please give me one example.
Is there any way to monitor the performance of a thread on Android phone.
As in any POSIX library?
I want to find the time taken by a "thread" during execution, while many other applications might also be running.
I am really psyched about going from a Treo Pro to an Evo. I realize this is probably asked alot, but after a number of searches, I still cant find what I am looking for. Is there a commonly reffered thread that is for people coming from WM to Android? I have a ton of questions about substitute programs & am not sure where to ask..
View 3 Replies View RelatedI placed my order for a Droid X for me and my wife on Friday at 6pm and I got notification that I will receive them both TODAY.I am pretty excited to get rid of my iPhone 3G and her to get rid of the dreaded Sidekick. I think she might be the last person on Earth with a Sidekick. But this will be our first Android phones and I am sure there will be a learning curve but I am a pretty big computer geek so it should be fun. I am sure I will be asking plenty of questions as well.
View 17 Replies View Relatedi'm sure this has been asked before but, with 2.01 and 2.1 things may have changed and as these are/have *just* come out I felt it was worth asking:I'm looking at either a driod or HD2. Now I really like the HD2 BUT it has the usual HTC BS issues with a buggy frontend and generaly, like all HTC stuff, being excellent in principle but rushed out and becomes major fail. So, this brings me to a Milestone (i'm in the UK).I'm very tempted by this as its similar in form factor to my current Acer M900 - large screen and slide keyboard. But before I do, i'm a little confused by some stuff and was hoping you guys can help me please?
- I'm looking at a Milestone being a UK person, can I use ROM's for a Droid and still retain the multi-touch feature?
- I have read over the past few days that some Droids can auto-reboot. Does this also affect Milestones and have the new 2.01 updates fixed it? Do we know if the 2.1 will defo fix?
- I am a hardcore Office user on my WinMobs, can I get full office functionality on the Droid? I need full outlook sync including tasks. I need to be able to edit Excel and Word and at least look at PowerPoint presentations.
- I also need OneNote or something VERY similar on Android that will sync to my PC as well, can this be done
- I have read that the keyboard can be akward, sadly I have no idea where to try one in the UK so, honestly, is it useable or too cramped
- Battery life - i'd need full push email for 7am to 10pm, can the phone battery handle this
- The HTC HD2 has the usual issue where when locked it will require a reboot to "wake it up" again, does anything like this happen with the Milestone? Its highly embarrasing and VERY frustrating to go to take notes in a meeting only to find I need to reboot before I can....
I know you can only speak from YOUR experience and EVERYONE has a DIFERENT experience, so please, answer from your point of view.Mods, why can't you send a confirmation email to my private address? I have no blocking or junk filters in place (Stuza@stuza.com/Mail2web email service - not too bothered about people knowing it)it appears the forum numbering doesn't work so changed them to "-"
That my thread got removed?
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