Android :: Access To Element On Another Activity?

Aug 5, 2010

I have a TabActivity with two tabs-activities — FirstActivity and SecondActivity.

How can I access to any element (for example, change TextView's text) on FirstActivity from SecondActivity?

Android :: Access to element on another activity?


Android :: How To Access An Element Present In Parent View

Oct 20, 2010

Full code. how do i access the parent activity's mail layout elements? In this case a button. I have it declared in main.xml. When a button in the listview is clicked, i want to change the text of the button in main.

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Android :: Find ViewById() Id / List Element In Activity?

Aug 10, 2010

I'm trying to get the ListView by using the findViewById function, yet I'm unsure what I am trying to find or what to put. R.id.list does not work.

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Android :: Access Several Xml Views In Activity?

Aug 6, 2009

i have created some xml layout: 1- toplayout.xml 2- botlayout.cml 3- middlelayout.xml now i can only set one view as in setContentView(R.layout.toplayout); please advise how can i show all three views in my activity?

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Android :: Access Activity Below In Stack

Sep 8, 2010

I have pushed one Activity to make few changes. Now I want to pass all the changes to the previous(below) Activity. I dont want to create Activity again;and intead i want to access the previous activity.

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Android :: Access One Activity From Another In Same Package?

Feb 25, 2009

I have 5 activities in my project. How can i check the condition of 2nd activity from 4th activity? Based upon this condition i want to do something. If anybody know this please tell me. Am waiting for the response.

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Android :: Access Drawables Outside An Activity

Jun 1, 2010

How do access a drawable which resides in my project's res/drawable folder from outside an activity? The component which handles the loading of images is generic and is not inside any activity. I would like to display an image from res/drawable in case it can't be fetched from the web.

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Android :: Access Rows In List Activity

Jan 21, 2009

I want to include one button inside each row in a List Activity. When pressing one of these buttons it will be disabled and will perform a heavy task in the background (in a different thread to avoid screen blocking). After the action is completed the button will be enabled again and the row updated with some results obtained from that "heavy operation". Im filling my List with a custom SimpleCursorAdapter, its getView method calls super.getView and in the view (row) returned I access its button through findViewById and set my click listener (to disable it, and launch the heavy task in the background). Once this heavy task is finished I need a reference to this row view to find the button and re- enable it. SimpleCursorAdapter´s super.getView() reuses row views shown on screen to avoid creating many different rows instances, so when my "heavy task" is finished the row view reference i need to reenable its button may have been reused in a different row, so in the end I am modifying a button in a different row! I have tried different solutions, for example giving different ID to each row view (useless because it gets overwritten when the row view is reused) Obviously creating a different row instance for each row whether its shown on screen or not isnt the best solution.

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Android :: Access Large Layout In Activity?

May 13, 2010

I am having layout which I want to render on to different sizes of mobile (like WVGA854). Resource structure is like

reslayoutmain.xml
reslayout-largemain.xml

By default it is taking layout main.xml file itself of layout. Its not pointing to layout-largemain.xml. its throwing exception:Activity can not start resource not found. So can any one guide me how can I acheive this and how to support mutiple screens with different layouts like large,small and default along with images specified in respective dip folders.

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Android : Way To Access To Activity From BroadCastReceiver.onReceive?

Sep 7, 2010

I'm developing alarm application. I'm using listview on activity to reserve alarm. after application finish BroadcastReceiver.onReceive() method, I want to remove check of list. But i dont know how to access to activity.

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Android : Access Context Of A Class Which Is Not An Activity?

Jan 28, 2009

Can anyone tell me how to access context of a class which is not an activity?

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Android :: Access Handler In Service From Extern Activity

Jun 23, 2010

Ive set an in a running service a handler which does operation every X time. Now after certain time i wanna start an activity from that service, and in onCreate of the activity i wanna access that handler of the service(which started the acitivty) and stop it's schedualed operation

(mHandler.removeCallbacks(someTask));

any idea how will i access the handler which is in the service? the service and the called activity are in the same proccess.

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Android : Access A Method Of An Activity Inside TabActivity?

Oct 1, 2010

I would like to access the public method of an Activity run by a TabActivity using: Code...

Basically, what I what is to let the parent Activity call a method in child Activity in order to do something. Is this possible?

I did try this:((TeamHuddleScreenMsgsView)getTabHost().getCurrentTabView().getContext()).refreshModel(); but I'm encountering a ClassCastException. It seems that the getContext() still gives the TabActivity. Any help on how to get the child Activity?

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Android :: Access Progress Bar In Main-activity Containing Tabhost From One Of Tabs?

Nov 14, 2010

I am developing an android application where I have a main-activity that contains a progress bar and a tabhost. the tabhost has 3 tabs.How do I from a tab-activity access the progress bar in the main activity? I want to be able to start and stop the progress bar when things changes inside each tab ativity.

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Android :: How To Access Droid Activity Stack From Asynchronous Thread?

Sep 26, 2010

There 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.

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Android :: Access Original Activity's Views From Spawned Background Service?

Jul 21, 2009

I have an activity called A, and on the selection of menu item 0, it spawns service B, which starts a runnable C in a new thread. I have a TextView in activity A, which I want to access in thread C.

I've tried making the TextView a public static field, but that generates the following error:...........................

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Android :: Can I Access A Member Variable Of Current Running Activity In Droid

Jul 29, 2010

I have an Android activity running with a custom view in it. When something happens within that custom view, I want to tell the currently running activity by changing one of the Activity member variables. Is there a way to access the current running activity member variables from within a custom view class besides passing the activity into the view class though a function arg?

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Android :: Accessing An Element In Widget?

Apr 5, 2010

I'm using hierarchyviewer to look through a widget that I'm using. (TimePicker).

Now I can see that TimePicker contains id/decrement, id/increment and id/timepicker_input.

How do I get a reference to id/timepicker_input for example?

Tried my_picker.findViewWithTag("decrement"); but that returns null.

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Android :: Inject A <string> Element Into Another In XML?

Sep 15, 2010

I would like to know whether there is a way to insert/inject a <string> element defined in an XML file into another <string> element, doing that just with XML.

For example I could have:

<string name="author">Francesco</string>`

and I am looking for something like:

<string name="about_application">Author: @string/author</string>`

so that getString(R.string.about_application) would result in "Author: Francesco".

I know that I could combine the two elements in Java code using String.format(string, formatArgs)like for example:

<string name="author">Francesco</string>
<string name="about_application">Author: %1$s</string>`

and then in code use

String.format(getString(R.string.about_application), getString(R.string.author))

but I would like to do it in XML directly. Can anyone suggest me a way to do it?

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Android :: ClassCastException Using - View - Element

Mar 16, 2010

I'm sure there's a simple answer to this, but...Why can't I nest another view type within a View element? In my layout file I try:

CODE:...

And this gives me a ClassCastException. Why?

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Android :: Flashing Element In ArrayAdapter

Sep 12, 2010

I have an ArrayAdapter in my activity, and when a certain event occur, I'd like to make a specific element flash, or have it highlighted in some way for a couple of seconds. Is there a way to do that?

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Android :: Updating Single ListView Element?

Mar 29, 2010

In the application I am working on now I came up with the following problem. I have list view which is displaying items with images in most cases it will be different image for different items (thumbnails about 60x60 pixels). So the problem is how can I handle image processing for the view. For know I have the following variants:

1. I can cache all bitmaps and when I try to display view I get bitmap from cache synchronously and display it. The problem is that 60x60=3600x4=14kb per bitmap which is waste of resources.

2. When I need to display view I can register event to some thread to decode the associated bitmap which will decode it in background and than to update gui. This sounds good for me the scrolling is still smooth because all image processing is done in background. Updating list view is bit jerky for now I am doing it view notifyDataSetChanged which is updating all visible views although I can update thumbnail for a single item.

So question one is is there better way the update single listview element than calling notifyDataSetChanged.

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Android :: No Element Found. And It Won't Generate R.java Because Of It.

Nov 20, 2010

I am getting a parsing error and I do not know why (I am new to programing). Because of this error, R.java disappears and I end up having more errors. Hopefully someone can help me out. Here is where the error comes from: list.xml. Code...

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Android :: Defining A Shape Xml Element In Drawable?

Dec 23, 2009

I dropped the following into the drawable directory in my Android 1.5 project: Code...

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Android :: Scroll Listview To Focus Particular Element?

Jan 30, 2009

I'm trying to scroll my ListView (from an Activity) to a particular element in the list. I know it's position in the list. How is this possible?

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Android :: R Java File Not Updating With UI Element's Id

Mar 21, 2010

I added some UI elements to the main.xml file in the reslayout folder and when I try to access them through the call, R . layout. my _ uielement, the UI element that I created is not there. Even when I add a new xml file with UI elements, it still doesn't show up in the R.layout class. I have made checked the ids on them and they have the correct format (I think): android:id="@+id/my_button". What could be the problem? Do I need to compile the code first? UPDATE: I have already tried adb kill-server then adb start-server. It doesn't seem to help. I have also tried R.id.my_uielement, it doesn't register either.

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Android :: Scaling Web Page In WebView Element

Nov 30, 2009

I'm loading a URL into a WebView and I'm having difficulty setting the "scale" of the web-page. Specifically, the web-page is too big (800x600) for the screen, so my thought is to use "setInitialScale(50)" to reduce the size. Here is some sample code that doesn't work (i.e. the web-page doesn't scale to 50%)

WebView wv = (WebView)findViewById(R.id.webview);
wv.loadUrl("http://www.example.com/android/symptom");
wv.setInitialScale(50);
I also tried switching the order of the function calls but I get the same result¦i.e.,
WebView wv = (WebView)findViewById(R.id.webview); wv.setInitialScale(50); wv.loadUrl("http://www.example.com/android/symptom");

As an alternative, I have tried to use the "zoomOut()" function like this:
WebView wv = (WebView)findViewById(R.id.webview);
wv.loadUrl("http://www.example.com/android/symptom"); wv.zoomOut();
This approach works for a split second, and then the image reverts to its original size.

Here is my content view:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/ android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent"> <WebView android:id="@+id/webview"
android:layout_width="fill_parent" android:layout_height="fill_parent" /> </LinearLayout>

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Android :: Single Ui Element Instance Across The Application?

Jul 29, 2010

I have created a custom component and i want it to be singleton in my application and i want all actvities my application to have this custom component which is singleton.

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Android :: Possible To Have A Single Ui Element Instance Across Application

Jul 29, 2010

It doesnt seem possible, all code I've looked at from Google applications repeats the common portions of activity display in all layout files.

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Android :: Find Out The New Element In EditText View

Jul 31, 2010

I want to execute one method wheneer i enter number in EditText view.But i did not change the focus of EditText.I am stay in the same EditText when i enter a new number automatically i eant to execute one function.Now my question is how we find that event that means enter a new number in EditText

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