Can anybody tell me how to populate an Expandable List with Array List of Hash maps. Actually i have made a tree Data structure and i want to use my Data Structure to populate the Expandable List....
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I would like to have expandable text categories which reveal children that are checkable entries. I've used the "simple_list_item_multiple_choice" layout for the childLayout argument of SimpleExpandableListAdapter.
View 7 Replies View RelatedI'm using an ExpandableListActivity and notice that whenever I select a group item (to expand or collapse it), it highlights briefly and then quickly un-highlights.
For my application, I want the group items to remain highlighted. I've tried requestFocus() and several other things but nothing is working.
Anyone know how to keep a selected group item (after expand or collapse) highlighted and focused?
Is there anyway to remove the default drop down icon on ExpandableList?
View 2 Replies View Relatednow i dont know which event to implement to handle checkboxes in list when i click on checkbox it expands the list.... how to distinguish list click with checkbox placed in expandable list? or kindly refer me to tutorial same as expandablelist view with checkboxes.
View 1 Replies View RelatedIs it possible to take a csv file stored in the res/raw resource directory and use it to populate a table in the sqlite3 database? My thought was that, if there was a way to do a bulk import for the entire file into the table then that would be cleaner and faster than iterating over each line in the file and executing individual insert statements...
but I'm having trouble applying those statements in my Android application. My first thought was to try something like the following...but no luck:
db.execSQL("CREATE TABLE " + TABLE_NAME + "(id INTEGER PRIMARY KEY, name TEXT)");
db.execSQL(".mode csv");
db.execSQL(".import res/raw/MyFile.csv " + TABLE_NAME);...............
I am trying to populate a ViewStub with a new view depending on which ImageButton is clicked, but as I just discovered ViewStubs I am not exactly sure how this would work...
e.g. can I provide the ViewStub with different inflatedIds and within the onClick event of a Button inflate the ViewStub by calling a specific inflatedId?
I'm trying to do a very simple thing (showing a populated listView) but m not able. My code is not working and i cant find what's wrong, so i hope someone else can help me :)
My XML where i have the listView defined code...
When i launch the app, it goes fine, the TextView of the XML is showed but no signs of the ListView... Am i missing something?
I have a 7x6 grid.here i have to populate the calendar for the selected month.
i have date,month and year.with the help of these value is it possible to populate my grid view with the help of any algorithm? same like this
How can I populate a menu using intents? I didn't understand that thing.
Or is there any better way for that?
Update:
Suppose I have an application that need to resize the image,and there are many other applications that have a capability of resizing the image. How can I show the list of applications on a menu in my application so that when clicking on a particular option it will invoke the intent associated with that application. Simply saying I could resize the image in my application with out bothering about how that will get done.
Is it possible to populate an activity menu at startup? For example, reading from say a feature database at startup and only display those features that are currently active in an activity menu?
View 2 Replies View RelatedI have a database in my application that is used as a ContentProvider. It holds settings values for the application, and when I install the application I want it to add a hardcoded set of values just once.
This is how I am trying to do it at the minute.
CODE:.....
And this is the addNewSettings method:
CODE:.........
This works however each time the app starts it adds a new settings object and I only want it to app ONE object at the install of the application and thats it no more.
I need populate three columns in Android activity with dynamic data. How can I do it?
View 1 Replies View RelatedIs it possible to populate the options of a Spinner right in the layout xml? This page suggests I should use an ArrayAdapter? It seems awkward not being able to do it..
View 1 Replies View RelatedIs it possible to populate a listview based on a row Id from a custom cursor adapter. I keep getting an error "illegalArguementException column: _id does not exist". but the database has it and is already being used correctly. I don't know what to do, because I would need to populate different listviews from the same database and i don't want to have to create multiple database which will still have the same column names code...
View 1 Replies View RelatedI have an AutoCompleteTextView and i want it to auto complete contact names on input. The problem is that Contacts.People has been deprecated. The new documentation says to use ContactsContract but i can't find any proper tutorial. Can anyone give me a sample code or point me to an appropriate tutorial.
View 1 Replies View RelatedBasically I am trying to recreate the default contact screen when you click on "+" button another row of Phone number added to the list. Right now I have an ImageView as the "+" button and a ListView to contain the list of phone numbers. The problem is that the ListView doesn't expand when I add more item into the list. I could build the same look with LinearLayout but how can I save all those numbers that way? Below is the layout of the item that will be inflate with custom Adapter:
<?xml version="1.0" encoding="utf-8"?> <TableLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content" android:layout_height="60px"
android:stretchColumns="1" android:background="#FFFFFFFF"
android:gravity="center_vertical"> <TableRow>
<Button android:id="@+id/type" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:paddingLeft="10dp"
android:text="Home" /> <RelativeLayout android:layout_width="fill_parent"
android:layout_height="wrap_content" android:paddingLeft="10dp"
android:paddingRight="10dp" >
<EditText android:id="@+id/value" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:layout_alignParentTop="true"
android:layout_alignParentLeft="true" android:text="" android:hint="Name"
android:lines="1" android:textSize="10pt" android:typeface="sans"
android:textColor="#FF000000" android:gravity="left" /
</RelativeLayout> <ImageView android:id="@+id/del"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_alignParentRight="true" android:layout_alignParentTop="true"
android:paddingRight="14dp" android:src="@android:drawable/ic_delete" />
</TableRow> </TableLayout>
This is the ListView portion.
<ListView android:id="@+id/phoneList" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:background="#FFFFFFFF"
android:scrollbars="none" />
I just ran into a problem, while trying to populate a ViewStub by tapping an ImageButton within a SlidingDrawer (the ViewStub should also be part of the drawer), but all I get is a Force Close Error due to a Null Pointer Exception. As I am using ViewStubs for the first time I am not sure, what may have caused the exception.
This is the code I use to inflate the ViewStub:
CODE:.....................
I am trying to populate a ListView in a separate class with data taken from a SQLite database held in another class. What would be the easiest way to do so?
View 1 Replies View RelatedHi. Can someone please tell me how can I easily display every record from sqllite in ListActivity tab? I'm kinda confused with this. Do I have to create db from my helper class in TabActivity or ListActivity or both? My db helper class is as follow,,.
View 3 Replies View RelatedI am developing an app in android, which basically visits a given url and downloads an image. Now i want to populate this downloaded image and show it in thumbnail view. I have tried out displaying the same from SD Card, but when i am doing the same for downloaded files, it doesn't seems to work.
public View getView(int position,View convertView,ViewGroup parent)
{
System.gc();
ImageView i = new ImageView(mContext.getApplicationContext());
if (convertView == null)
{
//imagecursor.moveToPosition(position);
//int id = imagecursor.getInt(image_column_index);
//i.setImageURI(Uri.withAppendedPath(MediaStore.Images.Thumbnails.EXTERNAL_CONTENT_URI, ""+ id));
i.setImageBitmap(bitmap);
i.setScaleType(ImageView.ScaleType.FIT_CENTER);
i.setLayoutParams(new GridView.LayoutParams(100, 100));
}
else
{
i = (ImageView) convertView;
}
return i;
}
I am extending BaseAdapter and trying to populate the List Screen on my Activity Screen. NotifyDataSetChanged is not working as expected. Please find the below snippet of code.
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState); initialize();
context = this; config = Config.getInstance();
searchText = new EditText(this); handler = new Handler() {
@Override public void handleMessage(Message msg) {
msgQueueAdapter.notifyDataSetChanged();
context.msgQueueAdapter.notifyDataSetChanged();
msgQueueAdapter.notifyDataSetInvalidated(); } };
How do you populate a spinner from a cursor accessing an SQLite database?
View 2 Replies View RelatedI'm new to android developing and I've done a function which return an arraylist type ArrayList<ArrayList>. I would like to display this arraylist for see if my function work.
View 11 Replies View RelatedI'm writing my own custom view, a keyboard, which I think the ArrayList in the keyboard view is causing the application to quit in the emulator.
public static ArrayList<HexButton> hexButtons = new ArrayList<HexButton>();
The application ran fine when I did
setContentView(myKeyboardView);
But I want to nest my keyboard with a TextView so I'd like to be able to do
setContentView(R.layout.main);
Is there a way to pass an Array List of objects between activities? The myObject implements Parcelable and I'm able to successfully pass the objects around individually, but that means I need to have an exact amount of "myObjects" coded. I want this to dynamically grow/shrink by what the user does with the app. I have seen some posts on the web about doing:
Activity A
ArrayList<myObject> myObjArray = new ArrayList<myObject>();
Then when passing this into the intent I would use:
intent.putParcelableArrayListExtra("myObjArray", myObjArray);
Activity B
ArrayList<myObject> myObjArray = new ArrayList<myObject>();
Bundle extras = getIntent().getExtras(); myObjArray = extras.getParcelableArray("myObjArray");
However, the myObjArray always gets filled with "null". How can I achieve this?
I have an ArrayList<MyList> aList in an activity. I would like to send this data to another activty. Such that,
ArrayList<MyList> aList;
Intent intent = new Intent(); intent.setClass(mainactivity.this, newActivity.class); intent.putExtra("MyList", aList ); startActivity(intent);
On the receiving activity,
Intent i = getIntent(); newList = (ArrayList<MyList>) i.getSerializableExtra("MyList");
But this gets me no where. ERROR! My intention is to share this List between activities.
Can any one tell me how to store and retrieve arraylist in/from sqlite.
ArrayList<Double> results = new ArrayList<Double>();
I was trying to serialize an ArrayList which contains custom objects. I'm serializing it in a Servlet (server side), and deserialize at the client side. (using ObjectOutputStream and ObjectInputStream)
It worked fine, when I work with ArrayList<String>.
But when I tried it with ArrayList<MyObject> I couldn't get any results in the client side, this is the exception:
java.lang.ClassNotFoundException: web.MyObject
Of course I have done this:
public class MyObject implements Serializable { ... }
MyObject contains only String fields.
I want the contains() method from ArrayList to be case insensitive. Is there any way?
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