Android :: Adding ListView Items Dynamically - Force Close

Dec 11, 2009

I have an Absolute Layout with two buttons on top, a Text View of fixed size in the middle and List View as the rest of the Layout.

I want to use the top left button to add a list view item to the existing list and the top right button to remove the last item from the list. The List is layed out properly when the App starts, but as soon as any of the two buttons is pressed, the Activity Force Closes.

Here is the code:..................

Android :: Adding ListView items dynamically - Force Close


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How to add items to the spinner dynamically in android?

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Android :: Change Dynamically Items In A ListView

Sep 23, 2010

Im using a custom listView with a Title and a Subtitle where you can read a brief explanation of the item.

For each item on the list, im displaying an alertDialog to select an option (different for each case). When the option is selected, i want to change the Subtitle for the option selected by the user.

This is what i tried:

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

For the first item on the list it works fine, when i select an option, the subtitle get replaced by that option, but when i make a selection in the alertDialogs of the other 2 items, the option selected replaces the subtitle of the first item!

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Dec 11, 2009

I am copying my code below to do the above. The problem I have right now is after I have picked a Contact from the list, I am not able to add the name to the listview. I get a Force Close at that step. See point no. A below to understand what I am talking about.

Also, the ListView is built using 'strings' ArrayList which is empty the very first time. The Menu option 'Add' is then used to pick a Contact and add the contact Name to the ArrayList which is then:

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

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May 31, 2009

After the listview is already initialized, is it possible to add items to it during runtime?

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Aug 29, 2010

I am adding items to my data source and would like it to appear in my ListView.

For some reason nothing is appearing:

Adapter:

CODE:.........

Adding items in onCreate:

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

Here is my layout:

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

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Android :: Strange Force Close On Acore When Adding A Home Screen Shortcut

Jan 2, 2010

I want to add home screen shortcuts to individual chat rooms, in my app.

Here's my code to do so:

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

When I go to add the shortcut to my home screen, I get a Force Close, not on my own process, but on com.android.acore(!). I've run the debugger and verified that my code gets executed all the way to the call to finish().

If I do this instead for the EXTRA_SHORTCUT_ICON:

intent.putExtra(Intent.EXTRA_SHORTCUT_ICON, R.drawable.icon);

It works fine and places the shortcut, and the shortcut behaves correctly -- but of course the shortcut has the stock Android icon, not mine, since this isn't the proper way to specify the icon.

When I look at the source code of other apps that have done this, and at the one example of it in the official Android reference area, my code looks identical. My icon's a standard 48x48 png that I use for the app's main icon, without problems. I've verified this problem on an emulator running stock 1.6, haven't tested other versions.

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Android :: Listview Error Can't Run - Force Close

Aug 19, 2010

I've managed to show existing user in a textview. But it can only show one at a time so I decided to use listview.

CODE:......

But I received this error message from the logcat.

CODE:.......

I have added listview in listview.xml. I do not understand why the error msg tells me that.

For my xml, I got two xml file to make the listview work. First is listview.xml and second is adminmain.xml. For listview.xml, i've placed only listview. And for adminmain.xml, I placed textview.

listview.xml:

CODE:.....

adminmain.xml:

CODE:.......

I've tried swapping the R.layout. The same error message appears.

Here's the message from the log cat:

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

Everytime when I click on the empty space, this error message will appear ;

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

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Android : Dynamically Add Items To Preferences?

May 12, 2010

we have an XML file placed in the res/xml folder containing our preferences.

Is it possible at runtime to add new items to the preferences.

Example:

The user starts the app and the preferences consists of:
America
- New York - Los Angeles - Chicago

Where all the cities are CheckBoxPreferences.

Then the user performs some actions in the application and this triggers that two new cities are added to the preferences:

America

- New York - Los Angeles - Chicago - Seatlle - Washington

Anyone that know if it possible at all and how to do it?

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Android :: Dynamically Adding ImageView

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I am Having a table layout in that i am adding table rows dynamically.in that table row i am adding two image views and one text view.how to fix the size of the image displayed in the image view. If this way is not suitable one for acheiving this task.

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Android :: Dynamically Adding Content To RelativeLayout

Nov 24, 2010

Since I'm still just learning Android (and it appears Amazon says it'll be 2 months till I get the Hello, Android book) I'm still playing around with doing simple things. I have no problem getting an icon to display with the click of a button on my RelativeLayout using ImageView. The code for creating it is as follows:

private int mIconIdCounter = 1;
private ImageView addIcon(){
ImageView item = new ImageView(this);
item.setImageResource( R.drawable.tiles );
item.setAdjustViewBounds(true);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams( LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT );
if( mIconIdCounter != 1 ){
params.addRule(RelativeLayout.RIGHT_OF, 1 );
}
item.setLayoutParams( params );
item.setId( mIconIdCounter );
++m_IconIdCounter;.......................

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Android :: Adding Textview To Linearlayout Dynamically?

Nov 17, 2010

I try to add a texview to linearlayout dinamiclly such as in the following code, but it doesn't appear when i run the application ?

setContentView(R.layout.advanced);

m_vwJokeLayout=(LinearLayout) this.findViewById(R.id.m_vwJokeLayout);
m_vwJokeEditText=(EditText) this.findViewById(R.id.m_vwJokeEditText);
m_vwJokeButton=(Button) this.findViewById(R.id.m_vwJokeButton);
TextView tv=new TextView(this);
tv.setText("test");
this.m_vwJokeLayout.addView(tv);

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Oct 14, 2010

I've got an activity for which I've defined an intent filter statically in AndroidManifest.xml. I'd like to register additional intents dynamically to that same intent filter in the activity's onStart() method. Is this possible? I'm trying to avoid having to implement a separate intent receiver class.

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Android :: Dynamically Adding A View To Activity Layout

Aug 18, 2010

I have a custom view (an extension of a TextView) that I want to dynamically add to my Layout (don't want to include it in the main.xml file).

The book says to fetch the RelativeLayout using findViewById() in my java code then create a new instance of my custom view, then use addView on the RelativeLayout to add the new view.

I'm not getting any errors, but when I click my button to add the new view, nothing is happening (view isn't being added). Do I need to set additional properties on my custom view (layout width, layout height for example) in order for it to be shown?

Adding code

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

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Android :: Dynamically Close The Virtual Keypad Though Code?

Dec 8, 2009

How can you dynamically close the virtual keypad through code? All I want to do is close it when the user clicks an "Ok" button because it is not closing itself even though the button now has focus.

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Android :: Displaying XML-based Layout / Adding Text Dynamically

Sep 12, 2009

I have a LinearLayout defined in XML that I want to use repeatedly to display elements of a list. The XML-layout looks like this:

<?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="wrap_content"
android:background="@drawable/background"
android:paddingBottom="5px">

<TextView
android:id="@+id/destination"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="22dp"
android:text="@string/test_destination"
android:paddingLeft="5px"/>

<TextView
android:id="@+id/date"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="15dp"
android:text="@string/test_date"
android:paddingLeft="5px"/>

<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/info"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingLeft="5px"
android:paddingTop="10px" >

I gather information about certain events from a webpage, and then I want to display all events in a list using the above layout for each event. My current approach is to have a LinearLayout as parent and then adding each event as a row.

Problem number one is to add the layout to each event (the number of events is varying). I.e., I want to dynamically inflate this layout for each event. I also don't want the text to be hard coded into the layout (as above) but added at runtime. I don't know how to do this. I have tried something like the following without any success.

LinearLayout eventView = (LinearLayout) findViewById(R.layout.event);
parentView.addView(eventView);


Problem number two is then to add these layouts to the parent view group and display it on the screen. When I try to do this using parent.addView(child), the program crashes at runtime and I can't figure out why.

It's kind of hard to describe the specific problem, since I'm new to GUI-programming on Android and I'm sort of programming by trial and error right now. Anyway, if you are able to help me with some of the problems it would be greatly appreciated. Linus

EDIT:
The problem now is adding text dynamically to the TextViews. I try this:

TextView dest = (TextView) findViewById(R.id.destination);dest.setText("myText");

only to discover that dest is null. Any ideas why and how to fix this?

EDIT 2:
I have narrowed the problem even more, but I really don't understand its nature. This is the trouble-method: Code...
it somehow works (even though the events are displayed in reverse order). Anyone knows what's going on here?

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Android :: ItemizedOverlay Adding Items And OnTap?

Feb 4, 2010

When I add a new item to my ItemizedOverlay the onTap display I have set appears X times, where X is equal to the number of items that I added. So for example, if I add one item and tap it, it the onTap method gets called once, and in the LogCat I get:

02-04 23:28:56.188: INFO/NotificationService(52): enqueueToast pkg=android.mapit callback=android.app.ITransientNotification$Stub $Proxy@4394c100 duration=0

If I add a second item and click ANY of the other items, the onTap method gets called twice and I get the following in LogCat:

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

If I add a third item and click ANY of the other items, the onTap method gets called three times and I get the following in LogCat:

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

Any idea why this would occur? I'm running into issues with it affecting other things like removal of items.

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I have looked at similiar solutions here at SO, but since I not got it to work, I asked this question.

My code:.............

I have in the same .java file, functions to download the info from the web and loop through 100 items, like this:

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

And then it add a new order correctly and so on. But now!(?) I want to have so when the first item is loaded, it should appear and when scrolling it loads gradually.

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How can i add image to my listview dynamically.

Here is My Code...

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I have a problem with adding new items to ListView.

I use custom adapter MyListAdapter. I do that way:

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

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I'm just getting my feet wet with Android and have built a UI that contains a TabHost with three tabs. Each tab is powered by its own Activity. The first Tab contains a listview with a prepopulated set of rows and is built from a custom ArrayAdapter.

The problem I'm running into is that none of the ListView rows are tappable. In other words, when I tap on them there is no orange selection. If I use the scroll ball on my Nexus One it will select, but any touch gestures don't seem to be responding. All the UI is being handled using XML files with a main.xml housing the TabHost -> LinearLayout -> TabWidget/FrameLayout and a nearby_activity.xml file containing my ListView UI

<?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"............

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