Android :: Findviewbyid In Service?
Jun 24, 2009I develop an application. This don't use activity class. only use service class..
I need method(findviewbyid). but service don't have this method.
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View 6 Replies
Android :: Custom Toast - Service Class Does Not Inherit The > FindViewById() Method
May 19, 2010The problem seems to be that the Service class does not inherit the > findViewById() method.
View 3 Replies View RelatedAndroid :: FindViewByID Returns Null - Works Different Than Activity.findViewById
Jul 16, 2010first of all: yes, I read all the other threads on this topic. And not only those from this site... (you see, i'm a little frustrated) Most of them come with the advice to use "android:id" instead of just "id" in the xml file. I did. From others, i learned, that View.findViewById works different than Activity.findViewById. I handled that, too.
in my location_layout.xml i use
<FrameLayout .... >
<some.package.MyCustomView ... />
<LinearLayout ... >
<TextView ...
android:id="@+id/txtLat" />.................
Android :: Use FindViewById Before SetContentView
May 24, 2010I am creating a layout through code and want to add a View to that layout. The view which is to be added is defined in the xml file. Is there any way to use an View from xml before calling setContentView method. Because we can not call findViewById before setContentView.
View 2 Replies View RelatedAndroid :: Can't Use The FindViewById() In An Second View
Apr 15, 2009I have a main.xml as the main view and another alert_dialog_text_entry.xml for one dialog when a button is clicked in the main.xml view. In the click handler of the button, the findViewById () can't work, the returned vaule is null, the code is like this:
CODE:...........
The alert_dialog_text_entry.xml:
CODE:................
Android :: Get A View With FindViewById()
Nov 8, 2010I try to customize a tab and I write this code:
CODE:.......................
Android :: How To Use FindViewById() In A Dialog
Feb 5, 2009I create a dialog using this:
CODE:.................
Then I try to get the 'yes' button using this: Button yesButton = (Button)d.findViewById(R.string.btn_yes);
But I get null for my 'yesButton'.
Any idea why findViewById does not work? And if not, how can I get a reference to yes button of the dialog?
Android :: FindViewById When Multiple Views Have Same ID
Aug 5, 2009what would be the outcome of using findViewById when multiple child views have the same ID lets say for example when using a layout to dynamically produce multiples of the same control?
View 4 Replies View RelatedAndroid :: FindViewById Returns Null
Jul 12, 2010I have super.xml and a subset.xml.
...............
I get a null pointer exception at price.setText(data.getStrTotalPrice()); Very strange, name.setText(data.getStrDescription()); does not give a null pointer exception.
Android :: Pass Control By Name To FindViewById
Aug 18, 2010If you got:
CODE:........
where "widget28" is the name of your button, how can you pass this into the findViewById as a String? or get it from R class as a string?
I want to get the Button instance by string and not by the hard code R.id.widget28 reference.
Android :: Find Some Performance Numbers For FindViewById
Apr 13, 2009trying to find some performance numbers for findViewById - need to convince to change bunch of the findViewById for the same widget to member variable with just one findViewById on create . Or may be i'm wrong and it's fine ?
View 6 Replies View RelatedAndroid :: FindViewById Returns Null In New Intent
Jun 17, 2010I am having a problem where in the started Intent, the findViewById returns null. Is there anything special I should know about starting a new intent? It goes something like this for me:
//in the MainList class
Intent stuffList = new Intent(this, StuffList.class);
then in the new Stuff's constructor:...............
Android :: Add New Id To R.id To Later Reference It Via FindViewById() In Unit Test?
Jul 9, 2010I am creating an EditText object which i then try to reference in a unit test. what is the best way to add a new 'id' to R.id for this dynamically created object so that i can later reference it via findViewById() in the unit test?
View 2 Replies View RelatedAndroid :: FindViewById(R.id.list) Returns Null
Sep 23, 2010I have a class that is called when my app launches. public class MainActivity extends Activity implements NetworkEvent.
In this situation, list = (ListView) findViewById(R.id.list); works perfectly.
However if I then call a new intent via:
CODE:.........
where SimpleList is defined as: public class SimpleList extends ListActivity implements NetworkEvent then when I call
CODE:.........
From within the SimpleList class, list is null :(
How come? Both classes are within the same package.
Android :: Eclipse Is Marking FindViewById(int) As Undefined
May 24, 2010Eclipse is marking findViewById(int) as undefined; it was doing the same thing for getResources(), but I was able to get around that by calling context.getResources() instead (as seen below) and can't seem to find a similar workaround for findViewById.
Here is the code:
CODE:.....................
Is there another package I need to import for findViewById?
Android :: FindViewById Vs Local Reference In Activity
Jun 17, 2010Would it be there noticeable speed improvement if I would create local references to needed view elements (e.g. EditText or Button) in my activity (in onCreate()) and use them for accessing needed elements or it does not much matter if I always use findViewById() when I need to access some particular element?
View 2 Replies View RelatedAndroid : Droid Typed Controls Instead Of FindViewById
Dec 23, 2009Is it somehow possible that instead of:
Button btnNextWord = (Button) this.findViewById(R.id.btnNextWord);
Eclipse automatically generates for me something like:
Button btnNextWord = this.btnNextWord;
or
Button btnNextWord = R.id.getBtnNextWord(this);?
Android :: FindViewByID - Get View Of A TextView Through A Listener Of Another UI Element?
Sep 9, 2010This is going to be a bit lame question. I have the following code:
CODE:.....
I have a TextView in my xml layout file. I'd like to get it and change my text when I click this button.
But I can't get it (the TextView) unless I make it as a value of a static member of this class and pass it to the constructor. I believe I am missing a big point here, so i'd be very thankful if you could explain how this is meant to be done ?
Android :: FindViewById In A Subclassed SurfaceView Throwing RuntimeException
Oct 9, 2010This code works fine if I move the findViewById call in to the Activity. Any hints as to why it doesn't work from inside the LearningView class? I've tried moving the TextView inside the com.example.LearningView tag but no joy. I'd prefer to get the TextView from within the SurfaceView subclass as I feel it's more logical to treat the TV as a "child" of the SV.
This is a contrived example I wrote to figure out the problem in a larger application, but the gist of it is the same, and the stack trace is basically the same.
For what it is worth, the findViewById call is returning null, which obviously threw NullPointerExceptions in some attempts to fix this.
As you can probably gather from my attempts I'm flying blind on this one.
Learning.java:
CODE:..........
main.xml:
CODE:..............
Stack trace:
CODE:......................
Android :: Fail On Trying To FindViewById For Nested TextView - Within ListView
Jul 31, 2010Trying to have a ListView (scrollable list) of rows made of two TextViews. I have a list of items from a database that I want to populating into the LinearLayout->ListView->TextView but can't get to the id...
Layout somewhat like this instructional link, but have backed away from RelativeLayout and using LinearLayout to get it working. Not even worried about how it looks yet; just can't get it wired together yet.
http://android-developers.blogspot.com/2009/02/android-layout-tricks-1.html
Have two XML files (very abbreviated details below)
CODE:...........
I have an ArrayAdapter where I inflate the stuffView. My thinking and understanding of other examples is it's not inflated (this nested stuffView) until I purposely inflate it. That all works fine but when I do the findViewById it returns null and thus I can't setText().
epic Fail due to complete ignorance/newbieness on my part. Note: I've pored through what I can of Reto's book, especially a simliar example on Page 163 but fail fail fail...
Can some kind soul point me in the right direction?
Must I inflate this nested view? (Reto's example does). If so, what am I missing? I'm hoping someone can point me to a better example.
My code's probably too involved at this point to post and a bit proprietary.
CODE:........
A pojo called Thingy (not copying Thingy.java here - very simple)
The main class:
CODE:...........
So this code is in essence what I'm looking for help on; neutered the names to call it Thingy.... This sample isn't triggering the getView(). That's a secondary problem I have to sort out. More importantly, your help on the findViewById failure and if I've got the XML right would help a bunch.
Android :: FindViewById() - Lost In Auto-generated Errors
Nov 14, 2010I don't consider myself a beginner, but my copy and pasting has left me lost in auto-generated errors.
Here's my dilemma, if I remove the comments below the program crashes unexpectedly; with comments it displays just fine.
CODE:.................
Android :: Change Context For FindViewById To Super From Inline Class
Mar 12, 2010I am trying to get the value of a EditText in a dialog box. A the "*"'ed line in the following code, the safeNameEditText is null; i am assuming because the 'findVeiwById' is searching on the context of the 'AlertDialog.OnClickListener';
How can I get/change the context of that 'findViewById' call?
CODE:.................
Android :: FindViewById Returns Null MapView When Following Maps Tutorial
Jun 4, 2009I'm following this tutorial here: http://developer.android.com/guide/tutorials/views/hello-mapview.html
and am on point 11
Here's the res/layout/main.xml:
CODE:........
Here's the code:
CODE:........................
Android :: Using FindViewById - Create Small Simple Application On Emulator?
Jan 20, 2009I am trying to create small simple application on emulator. I want to create button and display with some click event. I am not able to use findViewById method with R.id.abc. It always gives error as R.id cannot be resolved.
View 2 Replies View RelatedAndroid : Create FindViewById Parm Dynamically Or Programmatically At Runtime
Sep 27, 2010I have an xml layout that will display a grid made up of textviews within tablerows. The textview names are cell00, cell01, etc. At runtime, my program will determine which cell needs to be changed.
Is there a way get format a name so that it can be passed to the findViewById method at runtime? For example, if cell00 is needed, how can I generate the parm in this code?
TextView currcell = (TextView) findViewById(R.id.cell00)
Something like "cell"+00 doesn't compile because the findViewById method doesn't accept a String type. I don't want have every textview name in the grid hardcoded in the program - there must be a better way.
Android :: Why Return Null When Using FindViewById In Activity To Find And Handle CustomView?
Dec 4, 2009I wrote CustomView Class, and load it in layout. so i trid to find CustomView using findViewById() in activiy to get handle. but findViewById() was return null.
Written Code is like below:
CODE:.........
MapCanvas.java:
CODE:...............
Android :: Showing Toasts In A Service From Worker Threads With Service Reference
Jun 24, 2009I have a service running in the background.I have a background thread that gets a reference to the service from the application's main activity. But when the background thread calls a method in the service to display a toast, I get the "Looper not initialized exception".Why,if I have a valid, bound reference to a Service, does this still happen?
View 4 Replies View RelatedAndroid :: Unable To Start Service Intent Service Not Found
Aug 20, 2009I am getting following message when i try to launch service.Also is there any specific path on file system where we need to place the .apk file which contains my serivce component only.
View 2 Replies View RelatedAndroid :: Service Auto Restarts On Breakpoint When Debugging A Service
Jul 22, 2010I am trying to run the sample soft keyboard included in the SDK. I am using the debugger, and the literature says that to use a breakpoint while debugging a SERVICE, I need to include:
android.os.Debug.waitForDebugger();
So here is the portion of the code I modified:
CODE:...........
I have put a couple of breakpoints, at the statements indicated by the comments.
This is what happens: the debugger first stops at the breakpoint1, for a few seconds. But then the service restarts. For the life of me I can't figure out what makes the service to restart.
Android :: How To Get Interface On Service Without Destroying Service At Unbind?
Mar 1, 2009My service works exactly the way i want as long as i use start and stop and communicate using intents. However my activity needs to change the state of my service as well as retrieving state information.So i thought it would be nice to broadcast some kind of state_changed event from my service and use a binder interface to pull information from the service or change the services state based on user input.This works fine too. The only problem is that my service gets killed when i unbind it just as the documentation says.Is there any way to keep the service alive but still get an interface to control it directly. My activity offers the user a way to stop the service and the service kills itself anyway after it's work is done but i don't want the service to stop every time the activity is destroyed.
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