Android :: Supporting Smaller Screen Sizes - Supports-screens

Oct 30, 2009

I have had several emails from people with HTC Tattoo devices who say they cannot find my app in the Market.

After reading this page (http://d.android.com/guide/practices/ screens_support.html) I believe I have to add the <supports-screens> tag to my manifest file. However, when I try to do this I am confronted with "Error no resource identifier found for attriute support-screens in package 'android'" messages. What does one have to do to update their manifest to tell the market an app supports all screen sizes?

Furthermore, if I need to change the android:minSdkVersion from "3" to something higher or add the android:targetSdkVersion tag, will this prevent people with older versions of Android from using my application?

Android :: Supporting Smaller Screen Sizes - supports-screens


Android :: Supporting Multiple Screen Sizes Using Image Buttons

Apr 13, 2010

I've read the Android documentation:
http://developer.android.com/guide/practices/screens_support.html
but still have some questions. I'm trying to design a music application which basically has images of the instrument (ImageButton) that play a sound when clicked. However, I'm confused about how to have the ImageButtons scale to fit all the different screen sizes and how to position them.

Which layout is best used for needing to position ImageButtons in specific locations on the screen? (i.e. cymbals on a drum set) FrameLayout, RelativeLayout? If I only really care about medium and large screens, do I need to create different resources (images) for both as well as a different XML layout to position them? I'm trying to find the simplest way to do this without having to create a separate layout XML file for positioning/size and separate image resources for each screen.

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Android :: Supporting Multiple Screens - Document Contradict Itself

Jun 11, 2010

In the Supporting Multiple Screens document in the Android Dev Guide, some example screen configurations are given. One of them states that the small-ldpi designation is given to QVGA (240x320) screens with a physical size of 2.6"-3.0". According to this DPI calculator, a 2.8" QVGA display equates to 143 dpi. However, further down the page the document explicitly states that all screens over 140 dpi are considered "medium" density.

So which is it, ldpi or mdpi? Is this a mistake? Does anyone know what the HTC Tattoo or similar device actually reports? I don't have access to any devices like this.

Also, with the recent publishing of this document, I'm glad to see we finally have an explicit statement of the exact DPI ranges of the three density categories. But why haven't we been given the same for the small, medium, and large screen size categories? I'd like to know the exact ranges for all these.

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Android :: Supporting Multiple Screens / Most Optical Way To Design Application?

Jun 9, 2010

I have read the topic about supporting multiple screen size as well as different DPI. I am wondering which of the following way is better in supporting multiple screens:

1. Have different layout for different screen size (stretch the images)
2. Have different set of graphics for different screen (use the same layout)
3. Have different set of graphics and different set of layout for each of the screen

Which way is the easiest? And which way is the most optical way to design? Or is there another better way?

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Android :: Making Game's Logic Supporting Multiple Screens

Jul 25, 2010

I've read the article "Supporting Multiple Screen" on Android developers site. But that doesn't apply to game logic.Let me get straight to the point. My situation is as follows:

- I'm creating a game using LunarLander code as a base.

- In my game, there'll be an object flying up from the bottom of the screen. The object will fly in projectile motion.

- I set the starting velocity, gravity and angle so that the highest point(of projectile motion) is almost at the top of the screen.

- The screen tested is Motorola Milestone. (480x854 resolution) Meaning the object travels around 854 pixels vertically.

I'm thinking of adjusting starting velocity based on screensizes. But that sounds unreliable when we've so many devices/resolutions out there. How do you combat these kind of problem when making games?

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Android : Get Resolution - Programmatically Set Layout Folder / Supporting Multiple Screens

Aug 19, 2010

My application will have two layouts, one for large screens and one for normal. For testing I'm working with one phone (800x480 240dpi) and one tablet (1024x600 240dpi) but both are detected as large screen hdpi and long aspect ratio, so I'm not able to assign different layouts.

The only approach I think that can work is to create layout-large and layout-normal, get the resolution and programmatically set the layout folder. Is that possible?

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Android : Displayed Bottom Portion / Supporting Multiple Screens In Devices?

Sep 2, 2010

I am very new to android,i developed an sample web application and hosted it apk build file in different android version and on different sized devices,here i am getting problem in my design of layout such as listview not being displayed properly bottom portion is not displayed well and the align is not so good.

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Android : Nexus Devices Alignment Of Listviews Goes Wrong - Supporting Multiple Screens

Oct 18, 2010

I have developed an application which en-composes list views and posted that .apk file in my htc device, the design and alignment everything works fine,but the problem When i am testing in various devices such as Morotolo Droid,Nexus Devices the alignment of Listviews goes wrong, so i planned to use the Layout folder as layout-hdpi,layout-ldpi, and layout-mdpi, for that i changed my manifest file as

<supports-screens android:largeScreens="true"
android:normalScreens="true" android:smallScreens="true"
android:anyDensity="true" />

Is it right putting android:anyDensity="true",also i used dp instead of dip. I went through this url, but still am not able to get a clear idea in this
http://developer.android.com/guide/practices/screens_support.html. so friends pls tell me(help me) to get clear idea in this and tell what mistakes i have doing. This is my main page xml code frnds.

<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/tabhost" android:layout_width="fill_parent"
android:layout_height="wrap_content">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/background_retinav2">

<LinearLayout android:layout_gravity="center" android:foregroundGravity="bottom" android:background="@color/white" android:id="@+id/rl_1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal">
<ImageView android:paddingTop="3dp" android:id="@+id/starthideimage" android:layout_width="30dp" android:layout_height="35dp" android:src="@drawable/newback" />
<HorizontalScrollView android:paddingTop="8dp" android:id="@+id/gv"
android:layout_width="wrap_content" android:layout_marginTop="0dp"
android:layout_height="wrap_content" android:background="#ffffff"
android:scrollbars="none" android:layout_weight="1" android:foregroundGravity="bottom">
<LinearLayout android:id="@+id/san_tag" android:layout_width="wrap_content" android:layout_height="wrap_content">
</LinearLayout>
</HorizontalScrollView>
<ImageView android:paddingTop="3dp" android:id="@+id/Endhideimage" android:layout_width="30dp" android:layout_height="35dp" android:src="@drawable/newforward" />
</LinearLayout>

android:id="@android:id/tabs"
android:gravity="bottom"
android:layout_gravity="bottom"
android:listSelector="@color/gray"
android:layout_width="fill_parent"
android:layout_height="wrap_content" /> </TabHost>

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Android :: Determining Image Sizes For Multiple Android Screen Sizes - Densities

Apr 22, 2010

I've been reviewing the Supporting Multiple Screens documentation on the Android and I just need some additional clarification...

It's my understanding that designing three unique interfaces (ldpi, mdpi, and hdpi) would be the best way to go about supporting all the potential android screens with minimal scaling/distortion.

Yes, I know there are similar questions posted, however... If I create an image for the benchmark mdpi (let's say my image is 300x210, just for example) how to I determine what size I will need to recreate that image at ldpi & hdpi? This post as well as a google search leads me to believe that ldpi is just 75% of the mdpi image, and the hdpi is 150% of the mdpi image. Is this accurate?

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Android :: Screen Sizes With 1.5 - 1.6 And 2.0

Nov 13, 2009

I've got a quick question about screen size support. Currently, I've got an application that is rockin' along just fine on 1.5 and 1.6. Today the client called and says they want to run on Droid. While I've downloaded the 2.0 SDK, I'm a little wary of compiling against it. Will it break 1.5 and 1.6 compatilbility? How will the "medium" phones (G1, MyTouch) know to use those layouts?

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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 :: Application For Different Screen Sizes

Oct 15, 2010

I want to develop an application for a tablet of 480*800 screen pixels. I had developed an application for normal mobiles, but now this screen size is large than normal size. what precaution should I take while developing the application? Because device is not available right now so I must have to work on the project using emulator.

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Android :: Handset Screen Sizes

Aug 25, 2009

G1, Dream, Magic, Hero, Galaxy and more to come... Does anybody have a rundown of their screen sizes (and of some of the devices to come out)?

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Android :: Different Screen Sizes - API Level

Nov 29, 2009

Hello, I would like to ask what settings are necessary for my application to be available on all screen sizes: Is it enough to compile it using SDK 1.6 (but target is set to 1.5 and API level to 3) or maybe I have to set target to 1.6 and API level to 4?

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Android :: Different Screen Sizes X Different Layouts

Apr 27, 2010

supporting multiple screens (sizes and resolutions). I´ve searched not only this forum but many different websites and the android documentation but I´m probably doing a small mistake so things are not working properly.

Well, my main layout was designed with a HVGA screen, and it works great. When I try the same app on a WVGA, FWVGA, WQVGA or FWQVGA, I always get an unused space in the end of the layout because the screen ´s "heightnes" is proportionally bigger than HVGA´s.

So I consulted the documentation and decided to give a try on resource qualifiers, so I then created a nonsense UI and placed it on layout- large, created a new AVD using the WVGA skin and launched the app. Well, all I got was my old and not well stretched layout. The same happened to a FWVGA AVD.

This is the first problem. The second is: medium high density medium size screens and medium density large screens have the same resolution: how can I create a layout that is loaded for both, but not for (for example) medium size medium density or small size medium density screens?

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Android :: Application Optimized For High DPI Screen But Supporting Only Small / Medium

Aug 18, 2010

I'm building a game with graphic assets in hdpi resolutions (hence I put the files in drawable-hdpi directory). I don't want to have a corresponding mdpi resolution of the images, and I will code everything in 240-dpi based pixel coordinates.

Is it possible to still allow mdpi and ldpi devices to run the application, by automatically scaling the graphics from the hdpi version? Optimize for high-dpi devices only but still support (small- and) medium-dpi screens.

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Android :: Compatible Screen Sizes On Droid G1

Mar 28, 2010

I have read the documentation on "supporting multiple screens" but can't seem to figure it out. I mean, i understand that resolution effects it but it just doesn't make sense to me that the droid and the T-Mobile G1 both use the regular "layout" directory. I developed the app on a droid and got everything to work but there is one view that i need to use hard-coded pixels.....which im using dpi. Now when installing the app on the G1 things on that view are getting cut off because the G1 has a much smaller screen. If I redo it to work on the G1 then everything is all squished together on the droid and even tho everything is visible this way, it looks silly.

I tried using the different attributes in my manifest but that didn't help but since i'm using minSDK as 4, the support different screen size attributes are true by default anyway.

Am i missing something very simple and obvious or is it just the way it is?? Isn't the physical screen size of the G1 like an 1" smaller?? I'm still kinda new to Android development so forgive me if i am missing something simple.

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Android :: Multiple Screen Sizes - Layouts

Dec 16, 2009

I have created layout-large and testing against android 2.0.1 WVGA. however, its picking layout-normal. Can anybody suggest me what I am doing wrong. Even though, I have 3 layouts ( layout-normal, layout-large, layout- small), Its always picking layout-normal. why its so.

I added properties to manifest file

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

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Android :: Screen Sizes And Activity Rendering

Jul 1, 2010

I'm currently developing my first android app, and my first game. I've been developing on a netbook with a CliqXT (HVGA). Things are going well, it renders perfectly on the smaller screen. I knew I'd have some issues when rendering on larger screens, but the issues I'm having are not what I was expecting and I'm kind of stuck.

So basically the game consists of a main SurfaceView which I'm rendering the tiled game world on to. I followed this tutorial to get started, and my structure is still pretty similar except that it calculates the boundries based on the player location:

http://www.droidnova.com/create-a-scrollable-map-with-cells-part-i,654.html

The game also has various buildings the player can enter. Upon entering it launches another activity for that particular building. The building activities are just normal Views with Android UI stuff defined in XML (Buttons, TextViews, etc).

What I expected to happen:

So I expected the the building UIs to render correctly on the larger screen. I specified all dimensions in "dp" and fonts in "sp" in hopes that they'd scale correctly. I expected the actual game tilemap to render generally correctly, but maybe be really tiny due to the higher resolution / dpi. I'm using a very similar function to the tutorial linked above (calculateLoopBorders(), my version is pasted below) to calculate how many tiles to render based on screen height and width (getHeight() and getWidth()).

What is actually happening:

The whole game is just being rendered as if it's HVGA. The tilemap, and the building UIs are just scaled down to the smaller screen size, leaving black borders around the left, right, and bottom (see images).

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Android :: How Many Versions Of Image Should Be Made For Different Screen Sizes?

Aug 12, 2010

With the many devices available, each with different screen density and resolution, I am wondering - how many versions of an image should I make for the different device screen sizes? Is it 3? small, medium, large or just 1.

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Android :: Moving A Graphic On Different Screen Sizes With The Right Ratio

Apr 4, 2010

I tracked the behaviour of the different screen sizes when I increased the position of a graphic by 10 pixel. Unfortunately happened what I already thought. When the display is bigger, I'm able move a graphic a lot of times more to get to the bottom of the screen. So the ratio between the graphic and its environment is not correct anymore (so not 10 pixel as on normal screen) although the change of the graphic on the different screens looks correct (On big screen it is bigger, on small screens it is smaller). When I move the graphic from the top of the screen to the bottom, I can move that on 480x800 about 65 times, on 480x854 70 times, and on the 320x480 screen only about 25 times. So the target must be to calculate the right ratio so that 10 pixels on the small screen are 17 pixel (or sth. similar) on big screens. What approaches do I have to do that? I already thought about getting the value of res.getConfiguration().screenLayout to know if I have a small, normal, or big size to be able to calculate anyhow the right ratio, but this both seems to be pretty cumbersome and moreover I get values from res.getConfiguration().screenLayout I can't explain. I launched 6 emulator instances and got the following values from res.getConfiguration().screenLayout:

240x320 QVGA low density: 17 320x480 HVGA medium density: 18 480x854 WVGA high density: 34 480x800 WVGA high density: 34 240x400 WQVGA low density: 34 240x432 WQVGA low density: 266435490 (yes, I really get this value!)

This approach seems to be useless because I cannot even distinguish between 480x854 and 480x800, much less of the last value which seems to be corrupt.

How can I solve it to move a graphic on the different screens with the right ratio? How do game developers solve this when they support all screens?

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Android :: Apps In Relation To Different Screen Sizes - Resolutions

Jun 1, 2010

I am a current iPhone 3gs user migrating over to Android this Friday and getting the Evo 4g. Now, all iPhone/iPod touch screen sizes are the same and all the hardware specs are the same for the most part, but with Android you all kinds of resolutions, screen sizes, processors, etc etc...

Are all apps made for Android stretched to accomodate bigger screen sizes? For instance, I have played with my friend's Droid on Verizon and the screen is 3.7" at a resolution of 854x480 and he has showed me games on it like Gameloft's NOVA which is a full 3D first person shooter. So his phone essentially has a bigger resolution slightly than the HTC EVO 4G but smaller screen size (3.7" vs. 4.3"). So would the same game be stretched to fit my phone?

I'm wondering with different apps, are there any conflicts in relation to different spec phones?

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Android :: Support Different Phone Version And Screen Sizes

Nov 23, 2009

Some of my application's users are on android 1.5, some on 1.6, and some 2.0. So how do I release my app for all customers? If I release a 1.5 version, then the 1.5 phone can use it - but not the newer phones with smaller screens (aka Tatoo), they require 1.6 or higher? correct?

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Android :: Layout Issues For Multiple Screen Sizes / API Versions

Jan 19, 2010

I am currently trying to make my app compliant with all screen sizes / api levels. I have this mostly working, however there is 1 issue i cannot resolve: Layouts in the "layout-hdpi" folder are used by and any phone on 1.5 (API level 3). - Which i dont want, i want API level 3 phones to use the "layout" folder. So to resolve this I added "-v4" onto the folder also, this works, the folder is no longer used by 1.5 phones. However, now the folder is also not used on API Level 6 phones, for example the droid. The droid only picks up the folder if i name the folder: "layout-hdpi-v6". (Also if i put "-v3" on a folder, the layout folder is not used by API level 4 phones) My understanding is that the -v<api level> qualifer allows you to exclude phones on an API level that is too low, so -v4 should mean that the folder will be used by all phones on API level 4 and above. I am finding a folder is only used for that specific API level. Has anybody else ran into this same issue? And does anybody know of any possible solutions?

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Developing App For Different Screen Sizes?

Apr 26, 2011

how you go about developing your app for different screen sizes. My first reaction was that you would have to develop a layout for each activity for each screen size/resolution you wanted to support, however i get the feeling it should be a little simpler than that.

So the layout for my app is called Main.xml and it's set up optimally for a 800x480 4.3" screen, what do i have to do to make the layout okay for different densities etc? Do you work on the same XML layout for all your sizes or what? It confused me a little.

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Android :: Best Practices For Targetting A Wide Range Of Devices And Screen Sizes

Aug 31, 2010

As you know android today is many versions many constructors, many screen sizes,...

it's quite difficult for developers today to write programs that targets a big part of devices.

What would be THE developer must-know practices for this ?

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Android :: Drawable Changes Sizes On Screen When Reading Image From File / Avoid This?

Apr 15, 2010

I have an image on a private file.
I read the file, create the drawable, and assign it to an ImageView.
The ImageView has WRAP_CONTENT so the size is automatic.

On 320x480 screens, the image looks good
But on screens with more resolution and high density 480x800 or 480x854 (N1, droid) , when the image is for example 150x150, I see the image as 100x100.

Of course it has something to do with the density but not sure how should I resolve this.

This is my code...

if I then inspect the size of the icon, android thinks the size is 100x100, when really is 150x150.

Looks like its reducing the image by the density.
Can anybody explain this and how to avoid this.

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Android :: AIM Client That Supports Multiple Screen Names

Aug 30, 2010

I use Adium on my mac, and I'm looking for something as close as possible to that, and a big feature for me is the multiple name management thing. (As in signing in with multiple AIM accounts simultaneously)

Do any of the current ones support that? I tried the regular AIM one, but had no luck as it only supports one at a time.

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HTC Droid Eris :: Smaller Lower Res Screen Bad For Browsing?

Aug 30, 2010

I'm shopping for a cheap used droid for verizon and think I have it narrowed down to the eris or droid 1. I really like the eris for the price, however the droid has a lot of perks too like bigger higher res screen, more modern cpu, and improved battery life. I plan to root either device. What do you guys think, will I be disappointed with an eris? Is the smaller lower res screen bad for browsing? Can I expect to leave the wifi radio on all day for voip without too much in the way of battery life problems?

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Sony Ericsson Xperia X10 :: Number Of Apps Seem To Be Smaller On Screen

Sep 2, 2010

I have noticed this evening that a number of my apps seem to be smaller on the screen.Paper Toss now only fills half the screen, Solitaire the cards are a lot smaller and harder to read. And MixZing, the menu font is a lot smaller.

Could these all just be issues with the apps or could I have done something to my phone? I can't see that it is possible to change the screen res on the phone and I have not downloaded any further applications that would have changed this.

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