Android :: Dynamic ListView Extends Activity

Sep 26, 2010

Is there anyway I can create a dynamically filled ListView when the class does not extend ListActivity?

Android :: Dynamic ListView extends Activity


Android :: Run Method From Extends Activity Extends Runnable?

Jul 26, 2010

I'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...

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Android :: Listview Not Supporting If List Extends Screen Size

Oct 20, 2010

I created a list view in an activity and the list shows some fields.When we click a list item a custom dialog should pop up and the user can enter some new value to this field.The custom dialog contains one edit text and two buttons ok and cancel.It is working fine.But when my list is more that means if it exceeds screen size it is showing scroll.But when we select bottom items which we can select using scroll the dialog is appearing in normal fashion.But after entering new value if i am trying to save the application is getting crashed.

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Android :: Use Custom Color For Each Textview In Listview That Extends SimpleAdapter In Droid?

May 31, 2010

I have a listview with custom rows and that extends SimpleAdapter.
Each row consist of two linear layouts : 1st having two textviews of which one is hidden in horizontal orientation, second having two textviews in horizontal orientation.
Now depending on the value in hidden textview , I want to setcolor for the remaining items for the row.
To put it as simple:
each listview item has some custom colors the value of which comes from the hidden field.

I have done this by overriding getview() for the simpleadapter and returning view for each, but this makes list very slow to render (and that I think is obvious as so much of work for each view before showing it).

Can I do this in some more efficient way ? like making views and then add up to list instead of using xml layout maybe one solution OR any other?

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Android :: Example To Use Class SingleLaunchActivityTestCase <T Extends Activity>?

Aug 2, 2010

I am quite new to Android and Java
I am looking for example of how to use this class:

SingleLaunchActivityTestCase

Till now I am using class InstrumentationTestCase but the problem is that for each launched test case Android calling onSetup() and TearDown()

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Android :: Can Use GetCacheDir Only In Class That Extends Activity?

Jun 19, 2010

Can I use getCacheDir() only in a class that extends Activity? I would like to use it in an AsyncTask so that I can do the time intensive cache file saving in it.

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Android - Open New Activity From Extends Framelayout

Sep 23, 2012

I'm doing that sample: [URL] ....

I want to change at this line

public void onClick(View v) {layout.setVisibility(GONE);}
to
public void onClick(View v) {
Intent myIntentopen = new Intent(MainActivityold.class, MainActivitynew.class);
startActivity(myIntentopen);
}

but it dosn't work.

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Android :: Simple Program - Class Extends Activity At Startup

Oct 1, 2010

I have a simple activity program in android. Basically the class just extends Activity.
But when I start it I get a ClassCastException in the constructor of my class. I don't even have a constructor defined, so it must be in the constructor of the superclass which is Activity. Unfortunately the debugger doesn't give any detailed information on what class it is trying to cast. Here is the stacktrace:

Thread [<1> main] (Suspended (exception RuntimeException))
ActivityThread$PackageInfo.makeApplication(boolean, Instrumentation) line: 649
ActivityThread.handleBindApplication(ActivityThread$AppBindData) line: 4232
ActivityThread.access$3000(ActivityThread, ActivityThread$AppBindData) line: 125
ActivityThread$H.handleMessage(Message) line: 2071
ActivityThread$H(Handler).dispatchMessage(Message) line: 99
Looper.loop() line: 123
ActivityThread.main(String[]) line: 4627
Method.invokeNative(Object, Object[], Class, Class[], Class, int, boolean) line: not available [native method]
Method.invoke(Object, Object...) line: 521
ZygoteInit$MethodAndArgsCaller.run() line: 868
ZygoteInit.main(String[]) line: 626
NativeStart.main(String[]) line: not available [native method]

And when I look into this runtimeexception I get:

detailMessage "Unable to instantiate application com.test.MyApp: java.lang.ClassCastException: com.test.MyApp" (id=830067694464)
The only code is:
package com.test;
import android.app.Activity;
public class MyApp extends Activity {
}

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Android :: Speed Up Launch Of Activity Containing Mapview And Extends MapviewActivity?

Nov 12, 2010

I have an app which contains an activity which is a MapviewActivity and is mostly a mapview.
However I have noticed that the start up time of the activity is really slow and causes a lag from the moment the button is pressed to go in to the map activity. I feel this creates a bad user experience and would like to avoid this.
I have already set the background of the map activity to @null as suggested by one of the UI improvement articles on googles developer page. Which I fell does not do the trick.

Is there a way to improve this? I would not like the main home screen to get stuck on the launch of the activity, even a transfer to the map activity and then loading the mapview would be better.

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General :: Open New Activity From Extends Framelayout?

Sep 23, 2012

I'm doing that sample:

http:[url].....

I want to change at this line

public void onClick(View v) {layout.setVisibility(GONE);}

to

public void onClick(View v) {

Intent myIntentopen = new Intent(MainActivityold.class, MainActivitynew.class);
startActivity(myIntentopen);

}

but it dosn't work.

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Android :: Public Class Preference Extends Activity - Null Pointer Exception

Jun 19, 2010

My app crashes with a null pointer exception on the code below. I have an xml preference file under res/xml/defaults.xml
public class Preference extends Activity {
public Preference() {
} public String getPreference(String key)
{ //it still crashes here
SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(this.getApplicationContext());
String result = settings.getString(key, null); return result;
} }

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Android :: ListView And Dynamic Row Sizes

Mar 18, 2010

I'd like to use different row descriptors (from the XML layout resource) in one ListView. Can I and how? Also, I'd like to be able to programmatically change the size of the rows, based on the data in each row, in a ListView. Can I and how?

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Android :: Autoscroll To Bottom On Custom Dynamic Listview

Sep 14, 2010

I followed example as http://www.androidpeople.com/android-custom-dynamic-listview/

However I bump into problem applying autoscroll to bottom as listview.setTranscriptMode(ListView.TRANSCRIPT_MODE_DISABLED);

Where should I apply it?

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Android :: Dynamic Display Of ListView Elements Partially Working

Jul 26, 2010

I am making a time sheet program where a user inputs his in- and out-punches. I have a ListView that I am populating from an array of calendar objects. I would like each row to show the day and date then on a new line the time, but I only want to display the day and date if it is different from the previous element.Currently, I am setting visibility in the Base Adapter based on comparisons using position vs position-1 (which are used as indices to the array). This only works if the whole list fits on the screen. If it extends beyond the screen and the user scrolls around the results are unpredictable.To further confuse things, I am setting the color of the times, based on the position, to alternate between green and red (in/out) and it works as expected, scrolling or not.How does Android handle the ListView position when scrolling or what could I do differently to show/hide the day and date? Code...

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Dynamic ListView - Loading Contents

May 29, 2014

I am developing an application. In that application i have 2 list view (a and b ), i need to load the content of the list view (b) according with the selected value of first list view(a).How its possible.

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Android :: Dynamic Array Instead Of Static / When Creating ListView Icons And Text

Oct 29, 2010

I am using this following code which creates a ListView with text and an icon but the problem that I have which the following I want the array to be dynamic instead of static so my list gets created dynamically not statistically. My ultimate goal is to retrieve specific strings from my Db and to display it then on the Listview where every string would be in each row.

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Android :: Custom BaseAdapter - Dynamic Updates - Crash In ListView Layout

Feb 16, 2010

I'm trying to get my first Android app stable enough for the marketplace, and I've hit a brick wall with one exception that I don't understand. Probably I'm doing something stupid, but I can't tell what, and after several hours googling and experimenting, I thought I'd see if I can get some help. My Activity extends ListActivity, and the parts I think are most important are extracted below:

GroupedListAdapter is a simple class that extends BasedAdapter to provide headings for sections of the list (not unlike the Fancy ListView tutorials that are floating around).

I create this in onCreate, and it works fine. Inside onListItemClick, I do some actions which will create a different set of list contents. I "clear" the adapter, which empties the contents, and call reload, which repopulates it. Then I call notifyDataSetChanged.

Most often, this seems to work, but also fairly often, I get the exception following the code snippets below - this seems to indicate the ListView is not in sync with my changes. Lately this crash happens 100% of the time under the simulator.

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

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Android :: Refresh Droid ListView After Adding / Deleting Dynamic Data?

Feb 12, 2010

I want to refresh an Android ListView after adding/deleting dynamic data.

Can any one tell me how to achieve this?

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Android :: Want To Add ListView As Part Of A Activity

Aug 5, 2010

I am trying to add a List view as below. Code...
But the list never appears. What am I doing wrong?

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Android :: Listview With Button On Same Activity

Apr 17, 2010

I tried a lot but i did not success, my problem is i want to add first one button and below that one listview. for that i divided my xml in two Linearlayout as below in code but it is not working when i am hiding button code then list view is coming other wise only button is coming on the screen. please find out my error in xml or any thing i have to do in .java file Code...

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Android :: ListView Not Touchable In My Activity

Apr 8, 2009

I developed an activity that extends the ListActivity. It has a ListView that binds to a DB. Thing is that I can click on the items of the view only with the trackball. When I try touching the items or the view I can't, is not responsive. Below the view I have a button that works just fine in touch screen mode. I already tried removing the button (I thought that was it) but no. Code...

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Android :: ListView Activity / Dialog

Aug 27, 2010

I've a listView Activity where user could open a dialog to display more information about a line of the list. On the Dialog user could modify a line. So my purpose is to refresh listView when User modify it by the Dialog. The problem is that I couldn't use myArrayAdapter.notifyDataSetChanges() so How I could do that ?

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Android :: Way To Start An Activity From A Listview?

Sep 24, 2010

I have a listview and I am trying to start an activity from the listview by {startActivity(class.java);}I have tried allsorts of methods and I cannot get anything to work. All I want to do is for each team in the list have a separate java file(Class) With activities in them, Help I'm at my wits end. Code...

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Android :: How To Start An Activity From A Listview?

Sep 24, 2010

I have 24 teams in a list, I have 24 separate .java classes for each team with information about those teams. When the user click on an item(Team) in the list I want to goto that teams java file(Class) and display there information. below is the code, As you can see I have setup the Bradford class and I have registered this in android manifest but when I click on bradford nothing happens, also when I try to set up another intent for another team the mylist value cannot be used again. Code...

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Android :: Spinner In ListView Activity

Apr 5, 2010

I am newbie in Android Application Development. I am trying to invoke a list in spinner can anyone tell me where I am having trouble. Here is the code of my application Code...

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Android :: Add A View / Activity On Top Of A ListView

Jun 2, 2010

I want to have a view with several choices when I click an element of my ListView. I was thinking of implementing an AlertDialog but as I need more than 3 options it is not possible. I also thought of putting my ListView in a FrameLayout and have an view with a gone visibility that I would turn visible at the click and update the content but I don't know If it's a good idea. Code...

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Android :: Passing Value From ListView To A New Activity?

Jun 14, 2010

I have a ListView that shows a list of names. When you select a name, I want to pass the selected person' ID to the next view (Profile) and retreieve their data based on their ID. I am able to load the Profile View, but do not know how to pass the ID from the ListView to the Profile. Here is how I am loading the Profile: Code...

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Android :: Use ListView To Start An Activity?

Nov 1, 2010

I am writing my first Android application, and I have been struggling with this for over a week. It seems like the basis of all android applications yet I cannot understand how to do it. For example, if you are in the Android Settings Menu, you have a list and you click on "About", it takes you to the "About" Actvitiy etc.

I need my app to do that as well, I have 5 menu items that I want to be able to select and go to the Activity for the selected item.

Currently I have my items in a string_array, but I have nothing that corresponds the string name with the activity name I want to goto.

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Android :: Want To Create A ListView Activity With An Image In Every Row

May 5, 2010

I have been trying to create a ListView Activity with an ImageView in every row. I've used this tutorial: http://developer.android.com/resources/samples/ApiDemos/src/com/examp... The issue is that there are always some dividers missing whenever I run the example. The dividers are disappearing/appearing and flickering as i scroll the list (tested in emulator and HTC Tattoo). Strange is that the same example downloaded from the market (API Demos app) behaves correctly. Here is a screenshot of how it looks: http://yfrog.com/4cnokp.

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Android :: How Do I Switch To New Activity From A Custom Listview ?

Sep 1, 2010

I am in a situation like, i have custom list view. One button, with listitems. When i click the button, i need to switch the activity. But the calls, startActivityForResult(myIntent, 0); --> is a non static call. I couldnt initiate this function in onClickLIstener() for the button. Dont know how to proceed with this situation ? Can anyone help me out with this.? Code...

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