Android : Ddalvik Performance For API Design

Oct 7, 2010

Taking into account JIT and non-JIT devices, what would be most efficient on Android for returning multiple values from functions: an array like this: Code...

Android : Ddalvik performance for API design


Android :: How Does Emulator Performance Compare To Real Device Performance?

May 23, 2010

I'm looking into writing an Android game, tough I don't curerntly own an Android device. For those of you who own a device, how does the performance on the emulator relate to real device performance? I'm especially interested in graphics related tasks.This obviously depends on both the machine running the emulator, and the specific device in question, but I'm talking rough numbers here.This question is a duplicate, but since that post is heavily outdated, I figured it's irrelevant by now.

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Android :: GUI Design - Mockup Design Tool For Android Application

Nov 23, 2010

I am going to develop an Android Application but before developing it i needs to have MockUp for the Android Application,so is there any way to design MockUp/GUI Design tool for the Android Application?

I know about DroidDraw tool , but i think it is not the exact way to prepare Mockup for the android application.

I have already referred this SO Question , but overthere i just found all the tools for the I-Phone only. So please feel free to share with me if you have/found any !

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Motorola CLIQ : Moto Update New - Improved Performance - Battery Life - Software Performance And Stability

Feb 20, 2010

Motorola CLIQ Over-the-Air Update
[Retail Partner Sales - T-Mobile Employees and Authorized Dealers]

February 19 Update
The over-the-air update for the Motorola CLIQ has been delayed to the week of February 22. An updated article will be available once a date has been determined.

On February 18, Motorola will begin sending over-the-air (OTA) software updates to Motorola CLIQ customers. The software update will improve device performance and resolve several known issues.
Improved Performance:
Improved battery life
Improved software performance and stability
Improved widget response
Decreased Force Close error messages
New Manage SIM Card application
Support of .WMA and .WAV media files
Removal of the imeem mobile application
Known Issues Resolved:
Accessories & Bluetooth
Error: 'Unable to pair' or 'Unable to connect to device'
Call functions
Can activate other functions while listening to visual voicemail
Call not ended by pressing the End key
Speakerphone turns on unexpectedly when answer incoming call
Plays ringtone or vibrates while on an active call
Unable to answer incoming call using �Slide to answer� feature
Accidentally opens Dialer or makes outbound while holding device
Device hardware (battery, keys, power, screen)
Battery indicator may not display accurate battery power
Call not eded by pressing the End key
Touch screen issues
Cannot answer incoming call using the Slide to answer feature
Incorrect keys registered using on-screen keyboard
Touch display appears to have �dead spots� that are unresponsive
Accidentally selects item when trying to flick through screens or menus
Messaging
Wrong message deleted
Phone may reset when turning Wi-Fi off in area with no Wi-Fi coverage
Customers can manually download the OTA on demand by going to Settings > About Phone > System Updates. Customers do not need to wait for a notification message to download.
Action Steps
Be aware of the fixes and enhancements included in the Motorola CLIQ update.
If customers are experiencing any Known Issue that will be resolved by the software update:
Do not file a handset exchange
Advise customers that the issue will be resolved by a software update on February 18.
Important Rebate Changes
[Retail Partner Sales - T-Mobile Employees and Authorized Dealers]
Customers eligible for rebates as part of new activations or upgrades must be advised they will receive their rebates in the form of a prepaid Visa card.
When customers take advantage of our new Early Upgrade or Early Upgrade Plus options, they are not eligible for upgrade rebate cards. These new upgrade options allow customers to take advantage of upgrades sooner and provide an instant discount, instead of having to wait for rebate cards.
To be eligible for an upgrade rebate card, customers must meet upgrade eligibility requirements.
Current, 1-year contracts: 11 or more active months since last discounted handset purchase.
Current, 2-year contracts: 22 or more active months since last discounted handset purchase.
Rebates on eligible purchases require contract extensions and a $9.99 or higher Data/Messaging feature.
Valid only on FlexPay plans with 1 or 2-year contracts.
Not valid for Even More Plus plans.
Active Months: The number of months in which the account has been in good standing and during which service has not been suspended.
Action Steps
Inform customers that Early Upgrade and Early Upgrade Plus are not eligible for upgrade rebate cards.
Advise customers eligible for rebates that they will receive their rebates in the form of a prepaid Visa card.
"With the purchase of your new handset, you can submit a rebate form to receive your rebate. The rebate will be in the form of a prepaid Visa card that can be used anywhere Visa is accepted. See the rebate form for additional details."
Trackball Replacement Program
[Retail Partner Sales - T-Mobile Employees and Authorized Dealers]
On February 24, T-Mobile will launch a Trackball Replacement program for BlackBerry Pearl 8100/8120 and BlackBerry Curve 8320 customers that are having trackball issues. This program will be available in T-Mobile retail stores only at this time.
Action Step
Refer customers to a T-Mobile retail store after February 24 for further assistance if they come in to your location looking to complete a trackball replacement.
First Connect for Dealers
[Retail Partner Sales]
First Connect for Dealers is an exciting class designed to help on-board and prepare Retail Partners to successfully sell T-Mobile products and services and provide differentiated customer experiences. This four hour class is conducted via the T-Mobile Live Virtual Classroom and covers the following:
Welcome to T-Mobile
Who is T-Mobile?
PCC
Differentiated Handsets
Differentiated Rate Plans
Service Excellence / Selling Skills
Tools and Resources
Customer On-Boarding
The attached flyer contains dates and times for these calls as well as registration details. ADRs should educate their locations about these calls and encourage them to attend.
To successfully be able to attend the training sessions, Retail Partners should have the following:
Computers with high speed Internet connections
The ability to play and hear video segments on the computer using speakers or headset
The use of a fully charged mobile phone to hear the audio portion of the conference call
Printer access to print Participant Workbook.
Action Steps
Share the attached flyer with your locations and encourage them to attend one of the scheduled calls.

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Android :: Looking For A Design Tip / Advice / Doc

Aug 2, 2010

I'm kind of new to android development.I have read from many sources that findViewById() is a "costly" operation. I'm making an application that deals with 5 TextViews to provide different kinds of information (distance, duration, title, description, etc) from a database. I'm using listeners to catch touch/click events and feedbacks a handler. The main function of the handler is to received a "position" in the Cursor where the new information needs to be displayed. I mentioned earlier that findViewById() is a "costly" operation. So, I don't call this method in the handler. Doing so, it will retrieve every time the Views when user touchs/clicks some widget. Is it right to populate the Activity with private members of the Views/Layout it displays? I mean, I don't like it. I don't know why, but seems that I'm populating too much the activity. I'm aware of the android:onClick xml attribute, but in my case I also use long click listeners. So, a piece of onCreate() looks like: And all of those are private members, wihout mention the "cursor.getColumnIndex()" for each. I thought on implementing Handler.Callback and set on the Hanlder.Callback constructor implementer a View array or a View list or something, but I also need this objects later to set other listeners and setups. Is this right? I cannot think another way, as I need the reference to the object, and also the Cursor reference that the handler will move to the "position" provided and update the correspondent View. I will really appreciate either an advice or a useful link/info/doc to read in what concern in this kind of designs. What I do not like is that It looks like imperative programming filling the Activity with "global" variables.

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Android :: APN Design - Access Pointer - MMS

May 13, 2009

in Android code, It is a very strange concept to define the APN type (APN_TYPE_MMS). The reason are: 1) APN only is an access pointer, it haven't any special attribute for MMS or other things. 2) Only Application care the APN name, since different APN will provide different service from operator. for example, operation may provide Email/MMS/GPS/.... service on different APN. 3) Android only define one type APN_TYPE_MMS, this will limit other top application usage. Any one can answer me why Android design this way? If google have strong reason for such design, I hope add other user defined type like APN_TYPE_USER1 APN_TYPE_USER2 then top application can set his property to use its APN other than APN_TYPE_MMS

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Android :: How To Design A Floating Keyboard

Oct 13, 2010

I am a developer and recently completed the implementation of my keyboard MessagEase. It's available on the Market (with its very- different features, making it quite unlike QWERTY).

This keyboard works fine as a replacement of the standard keyboard on an Android Phone. But for a An Android Tablet, it would work best if it's implemented as a floating, movable keyboard.

(the footprint of this keyboard is mostly dependable on the size of a human's finger; it remains the same even if the tablet's display is much larger than a phone's. Therefore it'll take a relatively smaller area on a tablet.)

If I use the current SDK hooks, it will have to take a significant portion of the screen, defeating the purpose.

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Android :: Activity Design Advice

Mar 3, 2010

I have a service running that grabs the users attention with a notification. What i would like to happen when the user clicks on the notification is for it to launch a dialog box. The "proper" thing to do is to launch an activity in this way, so is there a way to get an activity to launch with out filling the screen? So it looks like a dialog box?

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Android :: Launcher Icon Design

Sep 1, 2010

I'm more than happy coding apps.I am, however, rubbish at icon design.I'm sure I'm not the only one for whom this is a problem and yet all android devs need to create a launcher icon.Does anyone have any good tips on knocking up simple but effective launcher icons?

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Android :: Using 3d Packages For Icon Design

Nov 3, 2010

if this is a silly question, am sorry about that. I was wondering if its possible to design android icons using a 3d modelling package like blender? i know i have to stick to the guidelines documented already, but was just wondering if anyone had come across or done something similar? Its that little part of the icons(launchers) being able to have a slight perspective and looking through the requirements to design icons it seems i might be a lot faster using a 3d modelling package and then following part of the icons template guide(based from my requirement though!).

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Android :: Use IMF To Design Soft A Keyboard?

Aug 29, 2010

how to use the IMF to design a soft keyboard. Please point me to some resources that will help me understand how to do it from the ground up. Something other than the SDK sample

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Android :: Layout Design For HTC Desire

Sep 18, 2010

I designed an app for htc desire.The background image used for the app looks good in ecipse layout, when installed in phone it is stretched.

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Android :: UI Design For Board Game

Jan 5, 2010

I need to design a board UI using android platform. I was planning to take one image as board and moving the required images over the board. How do I achieve the same? I need to find the coordinates for image and need to move the required images to specifies coordinates. Is there any andorid API for this?

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Android :: Example / Code To Set Page For App Design?

Oct 8, 2009

Is anyone aware of an example or sample code that shows how to make a settings page (like what you get from hitting settings)? Many apps seem to have them but I'm not sure what type of list they are using.

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Android :: Need Source / Links To Implements A Design?

Jul 21, 2010

Referring http://code.google.com/events/io/2010/sessions/developing-RESTful-android-apps.html. Can any body provide source/links which implements such a design?

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Android :: Database Access Design Approach

Aug 30, 2010

I have a general Android design question around data access. I have a number of activities in my application that need to access a SQLite database. In order to wrap up all data access logic in one place I have created a DatbaseHandler class that takes care of all data access logic. This class takes care of building up where clauses, calling the database and interrogating the resulting cursor to retrieve the query results and return them to the caller. The purpose of this class is to wrap all data access code in one place so that it can be easily managed and maintained as opposed to having data access logic scattered across all activities. Each activity that needs access to the database creates an instance of this DatabaseHandler class and passes it a reference of android.content.Context. The DatabaseHandler class then uses this Context object to call an underlying content provider as follows context_i.getContentResolver().query(...).

My data access logic (cursor handling logic to be specific) is not in the activity and so I cannot manage the cursors life cycle, therefore there is likely to be memory leaks.

My questions are as follows -

How can I (if its even possible) manage the cursors life cycle from outside an Activity? Should each activity even be creating an instance of this data handler class and passing an instance of Context to it? Perhaps my design approach is wrong and I should expose these data access functions as static methods that take an instance of the calling activity as a parameter. That way I could perform managed queries and let the activity take care of managing the cursors life cycle?

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Android :: App Design For Multiple Data Connections

Oct 18, 2010

I am working on developing an application that requires me to establish multiple client-server based connections. Connection can be of two types where the Android device can be a server or a client. I can have up to 6 - 8 connections. Once the connections are set-up they need to be running in the background and are not typically affected by UI actions.Since each connection can be blocking, I am wondering what is a good away to design this app. Should I have two services for handling the server and client connections? Each service could have a "connection manager" that can spawn new threads when necessary. Or does creating two services even help? I presume spawning new processed would not be good as they will be expensive. Is this correct? I would appreciate any suggestions. Also, if this use case is not typical please let me know if you need more information to make any recommendation.

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Android :: Need To Design Apps Connect To HID USB Device

Nov 12, 2010

I need to design an android app to communicate with HID Custom USB Device. Are there any standard java library that I can use to implement this?

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Android :: Want To Design A Customized Text Selector

May 7, 2010

I wanted to design a customized text selector that changed the text color when user clicks the TextView. But got the following error:
Code...

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Android :: Changing Spinner Layout / Design

Jan 14, 2010

I am trying to modify the design of Spinner widget. I can change the background, but I can't find a way to change the arrow icon on the right side. Is there a way to do it?

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Android :: Mobile Software Design Process

Jun 18, 2010

I am not able to get an idea of how to do the "Design Process for a Mobile Platform". Can anyone give a little description of how to do the same.

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Android :: How To Design App For Picasa / Browser Short Cut For Same

Jun 8, 2009

I have a specific requirement to design a application for picasa or a browser short cut for the same. If any one have any pointers.

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Android :: Limitations Of The MapView And MapActivity Design

Oct 24, 2010

I was surprised to see a couple major shortcomings in the design of MapView and MapActivity.

First, MapView requires itself to be hosted in a MapActivity. According to the documentation,

A MapView can only be constructed (or inflated) by a MapActivity<http://code.google.com/android/add-ons/google-apis/reference/com/goog...>.

> This is because it depends on threads which access the network and > filesystem in the background; these threads must be shepherded by the > lifecycle management in MapActivity<[url]...>. > Tiles are cached on the filesystem in your application's directory. The > cache is auto-managed so you don't need to do anything with it, and can > delete it at any time.

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Android : GL SurfaceView Renderer Design Needed

Dec 21, 2009

I've been trying to figure out how to get to the current EGLContext from the GLSurfaceView. I looked at the APIs and looked at the code but it doesn't seem like there is any path to it. I could have just missed it - please correct me if I have, but it wasn't obvious. Now, I can totally understand the designer thinking that we should protect people from the context because they can cause bad things to happen but actually it would be nice to have access to swapbuffers so that we can do some effects. Fair enough, though.

The one thing I wanted was to see the current EGLConfig so that I could find out what config attributes I'm getting on weirdly-behaving devices like the Galaxy. It seemed easy enough - it's passed in to Renderer in the onSurfaceCreated method:

public void onSurfaceCreated(GL10 gl, EGLConfig config);

Great! Except wait, you can't query an EGLConfig without an EGLDisplay and that's locked up in the GLSurfaceView. So why is it passed in to the surface created method? Isn't it useless? Accord to GLES spec, an instance of EGLConfig is only good if you have the display/context instances that it was created from.

I didn't try querying it with the default context because it's supposedly invalid but perhaps someone could shed some light on this? I'd love if it were something dumb and obvious that I don't know about.

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Android : Design A Custom Control / Use It In Xml Layout?

Aug 9, 2010

I understand how to create a custom Android control, and I believe I understand how to pull attributes for it from the Xml layout. I don't know, however, how to get any children elements from it. Here's a visual example of what I'm trying to accomplish: public class Menu extends LinearLayout. When my Menu is created, how do I get references to the two MenuItems. Code...

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Android :: How To Design Activity And Service Writing To Same Table?

Jun 14, 2010

I have an activity which starts a (intent)service. Both access the same DB and potentially write to the same table. What design pattern would you recommand to avoid concurrency?

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Android :: Where Can I Find Information About 2.x Icon Design Guidelines?

Feb 10, 2010

Assuming that old Icon design guidelines are not valid anymore, where can we find information about the guidelines to follow to design "new-styled" 2.X launcher icons?Should applications provide icons for both icon styles if they work for both versions?

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Android :: Design Considerations - Sync Process And Using Service

Sep 29, 2010

I'm designing an android app which will need to do the following steps:

1. User pushes a button or otherwise indicates to "sync data".
2. Sync process will use rest web services to move data to and from the server.
3. The data will be stored locally in a sqlite database.
4. The sync process should provide status updates/messages to the UI
5. The user should not be allowed to wander off to other parts of the application and do more work during the sync process.

The first time the sync process runs, it may take 10-20 minutes. After the initial sync, less data will be transferred and stored and I expect the process to take 1-2 minutes or less. I've been doing a lot of reading about android's AsychTask and various examples of using a Service. But I don't fully understand the design considerations and trade-offs of choosing one design over the other. I currently have my demo project stubbed out using an AsychTask. After watching (most of) Developing Android REST client applications:
http://code.google.com/events/io/2010/sessions/developing-RESTful-and...
I'm left confused the design patterns described here feel overly complex, perhaps because I just "don't get it" yet.

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Android :: Design Approach - Web Service And Broadcast Receivers

Sep 23, 2010

I am developing an app for android mobiles that communicates with a json/rest web service. I need to make certain kinds of calls periodically to the server to check for some information. Within that context I might need also to query the GPS for the current position. I'm quite undecided to use a Local Service, since I don't know very well how to deal with them, in fact I need to retrieve those data periodically and refresh a MapView accordingly. I heard that I can use PendingIntents,in the service, associate this data as a payload and send them to a broadcast receiver which unpack the data and refresh the UI, I heard also that this is a bad design approach because of what broadcast receiver are intended to be used for.

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Android :: Application Design - Accessing Website Data

Oct 19, 2010

I am new to Android development and am interested in working out a design of an application. I am however, unfamiliar with the best way to handle what I want to do. I am interested in obtaining information from my band's Joomla website and placing it into an Android application. At the moment I'd like to get News articles posted and potentially other information that I create on the site. I was thinking of doing this by setting up RSS feeds for the website. Would it be better to somehow access the data directly by connecting to the database? I don't know PHP so I can't develop a webservice to access the content. Any ideas?

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