Android :: Filter Rows From Cursor - Don't Show Up In ListView
Jun 12, 2010
I have a Cursor that returns rows I use with a SimpleCursorAdapter to populate a ListView. I would like to filter some of the rows so they don't get displayed in my ListView. I use the data from the rows elsewhere in my Activity so I don't want to change my SQL to filter them with a WHERE clause. What is the best way to keep a row from being displaying in my ListView? Ideally I would check a column in my row and then only add rows to the ListView that satisfy a condition.
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Oct 8, 2010
I use this code in my getView:
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
if (v == null) {
LayoutInflater vi = (LayoutInflater)getSystemService
(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.listrow, null);
}
Order o = items.get(position);
if (o != null) {
TextView tt = (TextView) v.findViewById(R.id.toptext);
ImageView thumb = (ImageView) v.findViewById(R.id.icon);
if(o.getOrderDrawable()!=null){
thumb.setImageDrawable(o.getOrderDrawable());
}
else{
tt.setText(o.getOrderTitle());
}
}
return v;}
The problem is when scrolling; sometimes the correct image shows, but sometimes when scrolling back/forward, the images shows randomly and that is not associated with the row. The images are downloaded from the web.
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Feb 3, 2010
I have not found an example yet with a solution to the following task.
I have a SQLite database with two tables- BOOK and AUTHOR. I execute a query on the DB that uses a join and results in a cursor that looks like this. code...
New authors and books can be added to the database at any time, and I also need the user to be able to remove books, hence the [ ] checkboxes.
So i have two row layouts, row_author.xml & row_book.xml. I detect when I need to show a row_author subheading by seeing when the current author has changed compared to the previous row. But I have realized that the rendering of an Author Row will then move the cursor forward one row and jump over their first book.
Can anyone suggest a good approach to presenting data like this? Is there a much better way to do this?
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Apr 23, 2010
I have a cursor, and it got, lets say, 40 rows, I want to hide some rows when the user check a checkbox.One way is run the query again on the cursor, but it doesn't help me because the condition is done by Java (calculate balance, with many logic).I need something that will get the current row, and return if it can be show or not.any help will be appreciated.
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Jun 24, 2010
I've got a query, (I'm using rawQuery())
SELECT * FROM <table>
I'm then storing what it returns using a cursor. From their what I want to do is, start at the first row so.. cursor.moveToFirst() then take each column , column by column and store its particular value in a variable. I then want to move onto the next row and do the same. So I guess my question is How would I get cursor to deal with multiple columns?
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Jun 15, 2010
I've overriden runQueryOnBackgroundThread and done what I've needed to do for the corrent query to be excuted with a given constraint. My current challenge is figuring out how to actually pass in the constraint. I've got an ActivityList which I'd like to filter on a stored preference. I'm thinking I will need to perform a filter during onStart such that the most recent preference changes are picked up. All that is in place, just not clicking on how I'd actually cause the filter to happen!
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Sep 13, 2010
i want to implement listview with uses different xml layouts for rows depending on underlying item. A non optimal solution will be int getView method just to inflate every time a new view depending on the item from the adapter. Is there a better way to do this?
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Mar 24, 2010
is it possible to let my ListView show 2 different rows? On the picture you can see at the top something like a "teaser", the other rows are normal ListView. The screenshot is from the iPod. With their framework it is possible to show 2 different row styles. I badly need this on Android... Otherwise I would use a tabel design. But adding rows dynamically would be such an overhead instead of using ListView SimpleAdapter addItem...
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Aug 13, 2009
I want to make a listview that has different rows (layouts). I will load the data from a webservice and it can be 2 or more layouts i have to generate then. I am creating a social network app and want to show a stream of the users activity. So when he made a comment, make a new friend, this all has to come in the same list.. I load 1 XML file with multiple different child objects (comment, friend) so i can see which layout i have to use........
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Sep 29, 2010
I saw the Android app "Mobisle Notes Free" implement a really cool ListView, where a row gets moved to the bottom if its checkbox is checked. It's not just a simple refresh, but an actual animation where you see the row travel to the bottom. Does anyone know how to implement this?
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Feb 8, 2009
I made my simple, custom rows and listviews. Right now, only clicking on the text of the row is valid selection area. I want the entire row, even the no-text area to be selectable. Where do I modify? Am I looking for focusing or selecting?...................
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Jun 24, 2010
i am quite new to android and i was wondering how i could go about adding a listview with different images and text. What i am trying to achieve is a listview with four rows which have a different Icon? I don't know how to set that up using the xml layout provided. should i build this using different multiple linear layout or is there a better way to go about it?.. All the examples i have seen all seem to be using one particular Icon and no much detail of the xml layout.
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Sep 22, 2010
I have 2 ways of displaying ListView data. I have a class for each type of row. I do not create the rows in an xml layout. (Each row is derived from View and does custom drawing). When I switch from 1 type of row to another how do I get the ListView to layout properly with the correct row heights, and refresh? Is View.forceLayout() on the right track?
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Aug 10, 2010
I have 10 rows in my listview, and i want to provide different colors in each row.
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Aug 27, 2010
I have a relative layout which looks like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:id="@+id/nameText"
android:layout_width="wrap_content"......................
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Nov 3, 2010
Is there a way for setting a number of maximum visible rows for a listview?
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Aug 30, 2010
So, basically I have a custom View that contains a ListView with a custom Adapter that has the ability to read in information from the network (dumbed down HTML) and display it on a row by row basis. All of this works, but I need the text that is read in to be parsed as HTML which contains links that can be tapped on and launched in browser. I managed to do this by:
text.setText(Html.fromHtml(textBuffer), TextView.BufferType.SPANNABLE);
text.setMovementMethod(LinkMovementMethod.getInstance());
Works great, any <a href=""></a> links in the text are displayed as links and can be tapped. This is a side effect of now making it so the rest of the rows in the ListView cannot be tapped (or tapped and held). Basically, all the rows are non-selectable now. Is there any way to achieve both of what I need?
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Nov 9, 2010
The row of my listview has 3 texts. What I want to do is to align all the rows texts vertically. I tried that using the TableLayout view for the row, and I've set the width for the first and third cell's as a constant. I'm not very happy using constants because of the porting issues. Is it possible to align these texts without in another way? Here is the layout...
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Apr 23, 2010
How to do a listview which looks like this? I'm interesting in the style of rows with an own background and the selector working fine.
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Dec 16, 2009
Is there a working example out there that demonstrates how to append additional rows in ListView dynamically?
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Jun 29, 2010
I am making a Glossary of legal terms and I would like to be able to narrow the results in the list by typing in an edit box, I have tried finding a solution but none of them have worked for me.
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Mar 29, 2012
I am having a problem with rows being repeated in a list view. I posted it on StackOverflow
android - Rows being repeated in ListView - Stack Overflow
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Nov 5, 2010
I have looked at the intent-filter documentation and I can't figure out this specific intent-filter. I'm looking to use ACTION_SEND because I only want the app to show up in "Share" menus in other apps. I only want to show up in the share menu if the text of the intent is a url. For example, what is shared from the Android Browser's share menu. I don't want the app to appear in the share menu if it's just text and not a url.
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Sep 27, 2010
I'm having trouble changing the data held within a TextView inside of a listView. I can access the data and send a toast of the text, but the list isn't updated when I change it.
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, presidents));
ListView lv = getListView();
lv.setTextFilterEnabled(true);
ListAdapter list_adapter = lv.getAdapter();
TextView var_x = (TextView) list_adapter.getView(0,null,null);
ListView list = getListView();
int count = list.getChildCount();
Toast.makeText(getApplicationContext(),(var_x).getText(),Toast.LENGTH_SHORT).show();
var_x.setText("not a president");}
How can I change the text/styling of a row once I've already created it?
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May 27, 2009
I want to create a listview with rows that have an image and two textviews. This must be a very common activity but I can't find a class/or source code that does this.
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Feb 18, 2010
In my listview i'm adding more than 2500 items. When i try to use text filter option it is taking more time to filter. I asked this question in android groups already.But i can't get the answer what i expected.
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Oct 5, 2010
I have a ListView that get data properly and they are added to my own ListView using a ArrayAdapter class and my own ArrayList class. When I for example, typing in "table" I want it to sort from the loaded titles in my ListView and than it should show me the items that are left and matching table.
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Aug 16, 2010
I have a ListView in my app that has a background image. All of the rows are a semi transparent white (#35FFFFFF). Whenever I scroll the list, the rows turn a light green that obscures the background image until I stop scrolling (usually--sort of unpredictable). Sometimes it flickers between the background image/color and the green. And yes, I have set the cache color hint to #00000000. Any advice about this would be appreciated.
ListView xml:
<ListView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="7px"
android:cacheColorHint="#00000000"..............
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Feb 28, 2010
How can I color code individual rows in a ListView exactly like it is done in the native MESSAGING app? I do NOT want to simply do alternating rows, but I want to copy the format used in the MESSAGING app, where message rows have a different background color based on the username of the message. FYI: I am currently extending SimpleAdapter and overriding getView(int position, View convertView, ViewGroup parent) . In this method I am trying to calculate setting the background color based on the position as compared to a list of 'positions to highlight' that I am maintaining each time I update the list, but so far this is only working the first time the list is updated. In class that overrides SimpleAdapter:
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = super.getView(position, convertView, parent);
if(highlightPositions.contains(new Integer(position))){
view.setBackgroundColor(highlightColor);
}
else{
view.setBackgroundColor(normalColor);
}
return view;}
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Nov 15, 2009
I want a nice looking filter for my ListView in Android. How can I do this?
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