Android :: Using BindView To Customize ListView

Feb 7, 2009

In all the examples I've found to manipulate each view in a ListView, the method always seems to be getView(). But these were never Adapters backed by a cursor. I decided to try bindView() within a SimpleCursorAdapter, and so far it works very nicely, especially with the cursor all set up for my use.

My question is, is this usage good practice, and could I run into a problem in future? My question may be dumb but I just couldn't find a good example code snippet that uses a cursor.

Android :: Using bindView to Customize ListView


Android :: Customize ListView Click Event

Nov 10, 2009

I am having a List of Item which I retrieved from my Sqlite DB. I wants to set Click event for each n every item. How I can customise this event based on Item clicked? Be Descriptive. I am a Begineer. The method tht I used to fill data in my List............

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Android :: SimpleCursorAdapter.bindView - And Row Views

Oct 22, 2009

I have a problem with bindView() that has me puzzled. I am using it to customize each row, including setting icons, coloring the background and setting up listeners for buttons. It mostly works as expected, but not quite.

When I fill the ListView with SimpleCursorAdapter, I get multiple calls to bindView() for position 0, but only 1 call for the other rows. The problem is that when all is said and done, I have 2 rows (LinearLayout) created for position 0. Here is a sample log extract:

CODE:........

I use a view holder class to hold the view, position and other data so that when a button is clicked, I can retrieve the holder with view.getParent.getTag(). This all works fine. The problem is that there are two views for position 0, but it's the first one in the above logcat that seems to be displayed. My code which acts on the rows when a button is clicked (especially setting background color) does not reliably hit the position 0 row that is actually displayed.

I can see what's happening but I am at a loss about what to do about it. Why are two view created for position 0? Is it something that I can control? How? If not, how should I deal with it so that the results when I modify the views are predictable?

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Android :: Overrided SimpleCursorAdapter BindView Not Being Called

Mar 19, 2010

The problem is as follows: - My app is deriving from TabActivity that has 3 tabs - Each tab has a ListView - Tab1 is populated by an adapter that inherit SimpleCursorAdapter and overrided the bindView() method. This tab is displaying correctly. - Tab 2 is also populated by another adatper that inherit SimpleCursorAdapter and overrided the bindView() method. For some reason that I don't understand, the overrided bindView() is not being called. Thus the tab is not displaying correctly.

Here's my code fragment:

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

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Android :: Multiple Calls To SimpleCursorAdapater#bindView

Oct 3, 2010

I am using setViewValue method of ShowViewBinder to access image inside row of listView. The idea is to load image from internet and display it inside row of listView.

To load image, I am starting new image loader thread, but what I discovered when debugging this code, for each row I am actually starting 3 or 4 threads. I don't understand why. The code in if (columnIndex == ...) is executing more than once.

My code goes something like this:

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

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Android :: GetView Vs BindView In A Custom CursorAdapter

Aug 20, 2010

I'm watching this video http://www.youtube.com/watch?v=N6YdwzAvwOA and Romain Guy is showing how to make more efficient UI adapter code using the getView() method. Does this apply to CursorAdapters as well? I'm currently using bindView() and newView() for my custom cursor adapters. Should I be using getView instead?

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Android :: CursorAdapter Calling BindView On Every Item

Oct 4, 2010

I was using some of the code from DeskClock and found that when I tried to modify the CursorAdapter that newView was getting called for each item. (I actually wanted to add a divider and it seems like adding the dividers separately is better than adding them into a single listView)

If I have 3 items I get the following behavior:

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

I would've expected newView/bindView to be called once per cursor item. But, that doesn't seem to be the case. This was kind of a problem for me because I wanted to select the appropriate view depending on the cursor data, but since bindView could be called before newView that doesn't work.

Is this some odd recycler behavior (or somehow normal/expected)? Or is there something broken with the code (I removed everything except the ListView and it's still doing this)? I'm not quite sure why you would try to bind views that haven't been created, and why newView gets called on the first item twice.

If someone has an easy way of adding dividers to ListViews I'd love to know. I was going to try to dig through the contacts example to see how they did it there if not.

In case anyone's wondering MergeAdapter was neat to mess around with and try (I'll use it in some other situations). But, I did just end up writing a single adapter that handles multiple views. It computes the type of each item (which is small), stores it in a map, initializes it at adapter creation, and updates it in notifyDataSetChanged.

Then you just need to have getViewTypeCount() return the number of possible views. And getItemViewType to return the type from the map (which is 0 based, so 0-getViewTypeCount()). If you can compute your type from the position you don't need the map, but doing this on the fly wasn't possible so I just pre/recompute when needed.

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Android :: Custom List Cursor Adaptor Crashes At BindView On Emulator - Not On Phone

Aug 23, 2010

I will try to be specific if I can - please be patient, first time asker and relatively new to programming on this platform. Apologies if this has been asked/answered before - please link it to me. I have searched up and down but find other unrelated (to me at least) problems.

The real puzzler for me is that my app is crashing on my emulator but when installed on my phone (via upload of apk to phone and then using an AppInstaller app from market) it works.

The crash comes from a NullPointerException at the numbered line in the following code snippet (my code) of a custom list cursor adapter.

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

The following error dump is created.

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

Curiously I have been happily programming and debugging away all day and out of the blue a long working and bug free portion of my app now throws up this error.

I suspect it might be a problem with the databases, but really not sure - nothing seems out of place there. Up until today I had a database with only one table - today I added a new table which also has a "_id" field as the name autoincrement key field, which I read in the docs was required for android list adapters (if memory serves). Having some experience in coding and some minor experience with databases, that seems like a bad idea to me but I am uncertain of if that is the problem and/or how else to do it.

The crash I am listing here does not display or make reference to the data in the other, new table. The cursor does not contain any query data from it. In fact if I rename the key field "_id" of the new table to something else (ie "_blah"), the crash remains.

Like I said, if I upload the apk to my phone, it works.

I have tried the following on the emulator:
- restarting adb (and eclipse) - no result
- uninstall from emulator - no result
- destory AVD profile and recreate - no result

I am developing this under the Android 2.1 SDK, and have been for the last few weeks. I have only ever had that SDK installed, I am yet to update to 2.2.

Not sure what else I can say here - hoping somebody here has experience enough to shed some light on it.

Without a fix to this, I can anticipate a very slow development process here on out (assuming I have to upload to my phone to test new code changes...).

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Android :: Way To Change ListView Style Droid Without Building Custom Listview ?

Jun 26, 2010

I would like to change text and back ground color of my Listview without building custom rows. Is this possible ?

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Android :: How To Keep ListView Header From Scrolling With ListView Content?

Jun 24, 2009

There must be a way to do this. How can you tell a ListView that has a header to not scroll it when the user scrolls the contents? I want it to stay in a "stuck" position so that the user can always see what column the content applies to.

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Android :: Possible To Customize A Sub Menu?

Jun 8, 2010

Is it possible to customize sub menu items? The strings I need to display are two long for a single line and would like to stack a couple of text views.

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Android :: Customize Search Bar UI

Aug 27, 2009

I am developing an application that needs to extend the functionality of the android search bar. Basically I need to show a bitmap image for each suggestion. The current implementation of the search bar enables to show resource icons (with Search Manager.SUGGEST_COLUMN_ICON_1 and Search Manager.SUGGEST_COLUMN_ICON_2). I don't see the way to customize the native search dialog. I think it is not a good idea to create my search component. I found an old entry in this group, but it doesn't have any answer (HTTP:// www.mail-archive.com/android-developers@googlegroups.com/msg31090.html). Basically the question is the same: "is the search UI customizable at all"?

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Android :: Customize Row In ListPreference

Aug 7, 2010

Is there a way to use a custom row for the ListPreference in the Android preference screen? Currently I populate the ListPreference like this, but I need more info (description) shown in the List

int count = items.size();
CharSequence[] entries = new CharSequence[count];
CharSequence[] entryValues = new CharSequence[count];

for (int i = 0; i < count; i++) {
entries[i] = items.get(i).toString();
entryValues[i] = String.valueOf(i);
}
langPref.setEntries(entries);
langPref.setEntryValues(entryValues);

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Android :: How To Customize Seek Bar?

Jun 9, 2010

I am new to android. I want to customize a seek bar like attached image.white and brown portions are the images.

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Android :: How To Create ListView Within ListView?

Sep 9, 2010

In my project i m parsing xml and i want to put it in xml list with in list.

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Android :: Way To Customize The Gmail Signature

Aug 10, 2010

Is there a way to customize the Gmail signature.Different font or color?

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Android :: How To Customize Lock Screen?

Aug 28, 2009

I'm building a custom Home app. I want to change the lock screen to match my theme. For example changing the wallpaper. What I see in the lock screen now is the default wallpaper. I've tried searching this forum but can't find the solution. Yet I found some apps on the market that can do this.

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Android :: Looking To Customize Home Screen

Dec 18, 2009

Just bought my droid and LOVIN' IT...but I'm looking to tweak it a little more. So far, I'm really digging' the home screens that a lot of you guys have posted on this site, and I'm trying to emulate them but it's a little difficult for me to do. I'd really appreciate it if you guys can lead me to the right direction on which apps and customizations I need to employ to get those similar settings. I'm mainly looking to do 2 things:
1.) get my home screen to have the time, date, and weather widget, while putting my favorite icons around it for this I downloaded Home++ and weather forecast widgets v2. However, I really don't like how the default time and date and bottom icons look that comes with the Home++. A lot of you guys have the screen that looks like the HTC Sense UI. It's awesome! How can I get my droid to look like this???
2.) I'm currently employing the 3 screen setting (which I like). I would like to put a full size calendar on the left screen so that I can flick it over whenever I need to take a look. Is this possible? And is there an app/widget that can do this?

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Android :: Customize Spinner Behavior

Apr 21, 2010

I want to customize the spinner behavior a little bit. I want to add a couple of buttons at the end of the drop down menu that is displayed when the user selects the control. Any idea how this could be done?

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Android :: How To Customize The Launcher Without Modify The SDK

Jul 8, 2009

I would like to build my own launcher application. Beside modify the Launcher.apk in the SDK, is there any other method to replace my own application as the home menu?

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Android :: Trying To Customize Dock Icons / Not Going Well

Nov 6, 2010

I am running launcherpro and I want to customize my dock icons which I had previously removed (minimalist here) so it would be blank. Now I want to use the dock again for some nice text icons I found but when I add them to the dock they do nothing when pressed. How do I re-designate the function for these custom icons?

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Android :: Blink - Customize Your LED Alert

Jul 8, 2010

Blink : Customize your LED alert

Blink is a free software available to download from android market. Blink will override your default LED color with different color for different notifications. You can customize notification with the color of LED you want. Application provide customization for notifications like SMS, MMS, Missed Call, Low Battery and Low system memory etc.

NOTE: The application is running fine with nexus one with multicolored trackball notifications in froyo.

Feature:
- New SMS & MMS LED Color & Frequency Adjustment
- Missed Call LED Color & Frequency Adjustment
- New Phone Call LED Color & Frequency Adjustment
- Low Battery LED Color & Frequency Adjustment
- Low System Memory LED Color & Frequency Adjustment

Screenshots

Direct Download: http://downloadandroid.info/download/Blink.apk
Scan QR code:

Source:droid-life.com

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Android :: Customize Linear Layout

Sep 26, 2010

I am facing problem to customize Linear Layout. My xml is as follows:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffff"
>..............................................

I want to set the width of @+id/LinearLayout_LeftPanel layout one third of the screen width pro-grammatically on the onCreate().

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Android :: Way To Customize Quick Search Box?

Aug 15, 2010

I'm developing an application that uses quick search box. Is there a way to customize it ? how to add additional button and use custom image for its background like in Twitter ?

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Android :: How To Customize Quick Search Box?

Aug 5, 2010

I'm using android qsb feature in my app. Qhen user click len button on hes keyboard, i open quick search box with one input box and one button. I want to know if i can add another button in qsb. I think it is possible, Google has added search by voice button in qsb.

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Android :: Able To Customize Soft Keyboard?

Nov 4, 2010

In my android application, I need number and letter key in the same view, not need number and letter switch key. for example let it looks like computer keyboard, Is it possible to do it?

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Android :: Customize Permissions That An App Can Use When Installing - Using Said App?

Sep 28, 2010

Is there a way to 'customize' the permissions that an app can use when installing or using said app? I would like to be able to say that this app can use GPS but not have access to my Contacts, or allow it to use the network but not access my SD card.

I know that this would likely disable different parts of the app but I am okay with that. I would like to be able to control which functions I give it permission to to use without only having the option to choose to install it or not based solely on what the developer set up.

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Android :: Customize The Searchable.xml Layout?

Jul 25, 2010

I was the Android Developer article on Search: http://developer.android.com/guide/topics/search/index.html and was wondering if I could add other UI Elements to the searchable.xml file?

Here is what I want to do:

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

I wan to provide the gallery as a way to specify what category to search in. Is this possible? If it is, how and where do I access the the user selection for this component? If not, how else might I implement giving a choice to the user to search more specifically?

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Android :: Customize The Parent In An ExpandableListView?

Sep 16, 2010

I'm trying to customize the parent(or header) for an expandablelist and I haven't found a solution yet. I want an imageview and two textviews in the parent. This is driving me insane atm.

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Android :: How To Customize The Spinner Widget

Sep 1, 2009

I am using Spinner control in my application and my Code is

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

This will work fine in linearLayout .when I use the code in the TableLayout, the control is not displayed.I have to generate dynamic layout so i am not using the XML part,only through Java code i am adding the contorls.

CODE:....

All the components gets added other than Spinner.

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