Android :: TextView Changing From Other Thread

Aug 1, 2009

I'm writing some game using OpenGL and have two views : SurfaceView for OGL and TextView for my score. When I try to update score ( using BoardScore.setText("bla"); ) from my activity class all just fine, but when I try to do it from my logic class my app crash. Debugger says something like ViewRoot$CalledFromWrongThreadException (id=830053983760) But I need to update it from logic to know my score.

Android :: TextView changing from other thread


Android :: Updating Of TextView From Different Thread

Oct 16, 2010

I have an Activity with TextView that I am trying to update from different thread. To do that i pass TextView to the "updater" thread onCreate(..) .. txtStatus = (TextView)this.findViewById(R.id.status): start udp server as separate thread and pass TextView to that thread to print text messages from udp socket

new Thread(new TelemetryServer(txtStatus)).start:

see thread code below

CODE:..................

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Android :: Changing Unselected Color Of TextView

Oct 14, 2010

I have a TextView that lives inside a LinearLayout. When I call LinearLayout.setSelected(false) the TextView text changes from white to black. Is there a way to set the unselected text color to something else?

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Android : Changing Text Value Of A Textview Dynamically

Nov 9, 2010

I have a textview in my XML layout file, but when I try to change its text value with code pragmatically (dynamically, depending on which button the user clicks) then the text of the textview doesn't change.

This is the code that I tried:

TextView userText = (TextView) findViewById(R.id.User);

userText.setText(bundle.getString("user"));

In debug mode, I can see that usertext has the changed text, but the change doesn't appear on my mobile window... I don't know why.

EDIT: SOLVED! it was a problem with my relative layout, text is out of the window!

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Android :: Changing TextView Properties Of A ListView Crashes The App

Sep 3, 2010

CODE:.....

list_item.xml

CDE:......

The problem is that I want to set a new typeface for the TextView in the ListView, and it seems it can't be done in the XML file!

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Android :: Changing One TextView With OnSensorChanged Without Redrawing Entire Layout

Jun 8, 2009

I am having a bit of trouble with my current application. With a button at the beginning of my app, I send out Intents for two activities, one gets a camera object, and starts a preview screen. On top of that, in a separate layout, there is an activity with a translucent view, which shows a resource image (the user is trying to get the image he is actually taking to align with the translucent image) and a couple of textviews displaying a target phone orientation as well as the user's current phone orientation.

when I update the text value of one of my text views in my onSensorChanged() field, the system constantly reallocates 1.22MB and garbage collects it. I can only assume that this is because it is redrawing the entire layout with the translucent image and the text fields, because if I remove the view containing the translucent image from the layout, my text field updates 10x quicker and I don't have ridiculous heap growing / garbage collecting. I am wondering how to go about getting the text fields to update without redrawing the entire surface. I am very new to UI design, and this code was written by someone else before I took over the project, so I don't understand much of what is going on in the custom view he wrote to take care of the translucent image -- called MyView. I will post the code for the layout as well as the MyView code below.................................

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Changing String Of Textview?

Jun 11, 2013

i'm working on an android application with 2 activities.

The first activity contains 2 buttons ( btn1 , btn2).

The second activity contains a textview and a back button.

In the string.xml I have two strings ( str1, str2).

What I want is when I click on btn1 the second activity should open and the textview will show the first string str1 and when I click on the second button btn2 the second activity open and the same textview show the second string str2.

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Android : Java - Implement A Run Method Of Thread If Create A Thread Global

Sep 7, 2010

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.

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Android : Handle Messages Between The Main Thread(the Deafult UI Related Thread) And The User Created Gamethread

May 21, 2009

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.

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Android :: 2 String In A TextView Listen Seperated Clickevent In 1 TextView

Nov 16, 2010

I want to do something like that. For example, I have a textview with String
Alibaba love Mary so muck. In that String alibaba and Mary have a event to open something but I can't know how to use event for Mary and Alibaba seperately

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Android :: Update ListView In Main Thread From Another Thread

May 27, 2010

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?

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Android :: Use Thread With SurfaceView - Ie Draw In Separate Thread?

Jul 22, 2009

I 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;...................

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Android :: Suspend / Resume Thread From Another Thread In Same App

Feb 20, 2009

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.

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HTC Droid Eris :: Remove Certain Texts From Thread In Easily Instead Of Whole Thread?

Dec 28, 2009

Does anyone know how to delete certain texts from a thread in an easy manner instead of having to delete a whole thread??

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Android :: Main Thread The Same As UI Thread?

Jul 16, 2010

The 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?

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Android :: Android RelativeLayout - Trying To Vertically Center A TextView When The TextView Below Has No Text

Jul 14, 2010

I have a ListView that contains an Image on the left of two vertically-oriented TextViews using a RelativeLayout. When both TextViews have text it looks fine. Sometimes the TextView on the bottom won't have any text, and the problem is that the entire layout is several pixels above where it should be because it still reserves that space for text when there isn't any making the entire list have annoying blank gaps. I remember seeing an example of where someone made the layout not reserve the space, but I can't remember how he did it.

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Create TextView On ActivityResult - No TextView Displaying

Jan 4, 2014

I'm trying to create a textView in the parent activity onActivityResult but the textView does not appear. There is an ImageView that takes up the whole parent activity. I can create a textView and place it, and it should go on top of the imageView?

In the parent class:

[HIGH]private void addClothes(int menuId) {
Intent chooseClothesIntent = new Intent(this, ChooseClothesActivity.class);
chooseClothesIntent.putExtra("menuId", menuId);
startActivityForResult(chooseClothesIntent, 1);
}[/HIGH]

[Code]...

then in my new activity:

[HIGH]@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
try {
ClothingItem ci = mListContents.get(position);
String imagePath = ci.getImagePath();

[Code]...

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Clear Textview And Add New Textview While Click Next Category?

May 4, 2013

In my Android application I have to display article title on corresponding category.

I wish to display the output in following format:

[HIGH]Languages Programming --- Category name on Horizontal listview[/HIGH]

If I have to click Languages which means getting the article title for that selected category alone and displaying on Horizontal listview.

[HIGH]Languages Programming

Tamil Engilsh Hindi Telugu[/HIGH]
If I have to click Programming means need to display the :

[HIGH]Languages Programming

Java C C++[/HIGH]

Now my current status is :

I have to run the app and click Languages which means getting the output is :[code]....

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Android :: Android TextView's Background Not Moving When TextView - Padding Changes

Apr 28, 2010

I have a TextView that I created in the main.xml. In my app.java I am dynamically positioning that TextView based on where the user taps the screen. The problem I am having is that when I call myTextView.setPadding(100,100,0,0), it moves the actual Text of the TextView, but does not move the Colored Background of the TextView.

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Android :: How Can Pass Text Of Textview From One Class To Other Class Textview

Oct 15, 2010

if there are five text in a text view and we want to pass one of them on click event to the next class text view which method i m used on android

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Android :: How To Divide TextView Into 2 Seperate TextView In Android

Nov 15, 2010

I have a problem with TextView in Android

I am making an application like Facebook. In m.facebook.com, when I open it I see they do one thing specailly.

(Alice) is writing on (BackStreetBoy1010938920) wall

Because the width of Mobile screen is small so the real message like tha

(Alice) is writing on (BackStreet

Boy10101009393) wall

I guess they use TextView for (BackStreetBoy1010938920) but I can't do like this.

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HTC Incredible :: Root Notification Thread (Root Achieved And Thread Open)

Jun 3, 2010

Status: ROOT ,,Root Notification Thread (Root Achieved and thread open)

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Android :: Using GPS In Thread

Mar 12, 2010

I have a bluetooth thread started that handles the bluetooth request. Once the connection is made the thread is killed and a Connected Thread is started. Once the Connected Thread is started I want to turn on GPS so I can start feeding the GPS data through the output of the bluetooth. The problem is, I can't get GPS to start in a seperate thread other than the main Activity. I don't want that to happen as I would like to have this run in the background and not be dependent on the main Activity. I have tried turning on the GPS from inside the Connected Thread but that always leads to a RunTimeException. how to get GPS to run in a thread?

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Android :: TextView

Jul 16, 2009

How can i make TextView editable when i needed.

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Android :: How To Use AsyncTask From Thread?

Jul 29, 2009

I'm developing a game based on SurfaceView and a game thread for the whole game thing.Now I want to do some HTTP requests triggered on events inside the thread. They should of course be asynchronous, so the game doesn't stop. I found AsyncTask to be a neat way to do this but I'm having trouble implementing this at the moment. Maybe I misunderstood the concept of AsyncTask,I don't know it just drives me nuts as I read docs and blogs and still I don't get it. So sorry if that's a dumb question but I'm mad of thinking about it.

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Android :: Service Within Thread?

Jan 18, 2010

I am new to Java and Android.I would like to retrieve remote data and display it within my activity. To prevent tying up to UI, I understand that I can do this in another thread. (I thought I could just-as-well fetch this remote data from within a service, but that appears to tie up the UI thread also). So now I'm beginning to think I need to either run the logic from a new thread within a service, or run a service within a new thread. But which? I have found many examples online of running new threads or services, but I have yet to find an example of both at the same time.

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Android :: Thread Stopping Alone

Jun 7, 2009

My appWidget is working well. When it's installed and used by user, a Thread is launched to refresh view (like a flipper). Even if the screen is off, the thread is continuing...perfect for me... But after 3 minutes, it's stopped.

Does it a VM restriction avoiding some bad development usage?

How can I use this type of service? Develop a service in place of my thread?

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Android :: Any Way To Indicate Thread ID In LogCat?

Sep 22, 2010

I am trying to understand threads and how they work, and when, etc. I expected the pid in LogCat to be different in the background thread logs but the pid is always the same. Is the pid something other than the thread ID? If it is, is there a way to indicate the thread ID in LogCat?

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Android :: UI Thread Which Hangs Up?

Nov 16, 2010

I have to draw list of 30 articles. I tired using list view but there was some problem as I wanted to user alternate colors like first is white and 2nd is blue where as again 3rd is white and 4th is blue and it goes on..

So I decided to have scrollview and table into it. I set the view using setcontentview which shows loading dialog. then in aysnc task's "doInBackground" method i fetch all articles into the object and then in "onPostExecute" I run a for loop on the object and in each loop i make table row insert article and then insert row into table. and then dismiss loading dialog box.

As i have tabular view in my app and If i remove loading dialog box. While the UI is rendered if someone clicks on other tab. UI is hanged up, After loading all table rows It goes to other tab.

Even after using asynctask why this happens ?

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Android :: GPS Callback Off UI Thread?

Jul 6, 2010

I'm having trouble getting the GPS's onLocationChanged to run on a different thread. I understand how to manage UI thread when I'm calling a function but with the GPS, I don't actively call the function.

My intent is to have a light flash every time the GPS receives a reading. I have put this function in a Runnable. I passed this function to a class that implements LocationListener. Then in the main class, I started a new thread that calls requestLocationUpdates. I was hoping that onLocationChanged of the LocationListener would run in a different thread, post to the callback and make the necessary UI effects in the UI thread. Unfortunately, the program crashes every time it tries to call requestLocationUpdates. What's the proper way of doing it?

Right now it looks something like this

Main class:

CODE:................

LocationListener class:

CODE:...............

The exception says Can't create handler inside thread that has not called Looper.prepare()

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