Android :: Keeping Graphics Running Through Orientation Change

Aug 3, 2009

How does one create a graphics canvas that is visible by the user through orientation (port->land->port) changes? If one defines layout land and port, there is a noticeable pause during the switch. Yet, I downloaded a bubble level application that never pauses as orientation changes - even when it switches from a circular level (gravity vector through back of device) to a flat level (gravity vector through side or bottom edge).

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Android :: Keeping An Application Running

Jul 24, 2010

This is sort of about task managers, and yet, not. I have an application I need to stay open (meebo) but Androids's task manager closes it sometimes. I have tried using task managers to keep enough memory free that Android won't kill Meebo, but it usually gets killed eventually anyway. Does anyone have an idea on how to keep it open? I am running 2.2.

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Android :: How To Keep From Running Out Of Memory On Graphics For App

May 10, 2010

I've been working on an Android app in Eclipse, and so far, my program hasn't really grown past midget size. However I've already run into an issue with an Out of Memory error. You see, I've been using graphics comprised solely of bitmaps and PNGs in this program, and recently, when I tried to add a little bit more functionality to the program (mainly including a few more bitmaps and causing an extra sprite to be created), it started crashing in the graphics thread's constructor -> sprite's constructor. When I tracked the problem down, it turned out to be an Out of Memory error that is seemingly caused by adding too many picture files to the program and creating Drawables out of them.

This would be a problem, as I really don't have that many picture resources worked into that program...maybe 20 or so. I haven't even started to include sound yet. These images aren't all that fancy. My questions are this:

1) Are programs for the Android phone really that limited on how much memory they can employ, or is it probably something other than the 20-30 resource pictures causing that error?

2) If the memory for Android apps is so awful it can't even handle 20-30 picture resources being loaded into Drawables that exist at the same time, then how in the world are you supposed to make decent graphics and sound for that thing?

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Android :: Orientation Change - Dialog Above Activity With Fixed Orientation

May 14, 2009

I have created an activity for my game which handles all orientation changes by itself and has a fixed "portrait" layout. Actually it uses the accelerometer and is rendered using 2D canvas methods. If the level has been completed I show up a highscore dialog in which the user can enter his name. The dialog is floating above the underlying level screen which gets blurred out nicely. This generally works.

Problem is that the dialog does not get rotated if the orientation of the phone changes. So even if the keyboard is exposed the dialog is shown in portrait mode instead of landscape. I have tried to use an activity with dialog theme instead but the behavior didn't change. After several tries it seems that I have found the reason for this: Once there's an activity with fixed orientation in the activity stack then all subsequent activities keep this orientation, too. They will not react on orientation changes anymore (e.g. if the keyboard gets exposed).

After upgrading to 1.5 SDK the described behavior changed a little bit. Now at subactivities indead react on orientation changes like expected. However, the need to have an opaque background! That means that neither dialogs nor activities with dialog theme will work. Those will stick with the orientation of the underlaying activity. So my workaround is to first start a sub-activity with an opaque black background. This activity then shows my highscore dialog on top. It looks quite okay but I wonder if there's a better solution? Is it possible to show a dialog above a fixed portrait or landscape activity which automatically adapts to orientation changes?

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Android :: Keeping An Application Running In The Background

Jun 26, 2009

We have an application that connects to a device and therefore needs to keep running in the background even when there are no Activities active.  What is the recommended way to indicate that our application is still active and for it not to be killed automatically?

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Motorola Milestone :: Graphics Lag Test - Running 2.0.1?

Apr 7, 2010

Apparantly the 2.1 update has reduced the graphics capabilities of the Droid, and therefore I'm assuming the Milestone too. Unfortunately, I never ran the lag test before I updated to 2.1 so I can't say whether my phone is better or worse off in the graphics department. Currently running official 2.1, my average fps sits at about 37. Can anyone still running 2.0.1 download this app , run it, and post their results here? I'd be interested to know whether the reports on the Droid's graphics are the same as on our Milestones. And of course we then need to make Motorola aware!

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Sprint HTC Hero :: Calander Be Keeping The Phone Awake - Running Official 2.1

May 22, 2010

-Phone unplugged from the charger at 9:12 with 100% Battery power (according to battery indicator)
-Access the market once
-wake up the phone at 9:43 and the battery indicator is down to 94%

wtf? Check spare parts partial wake usage since last unplugged and the Calander is up there at the top above the Android system.

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Android :: Change Intent Bundle Data Before Activity Recreated After Orientation Change

Jul 30, 2009

I have a notification that starts my activity and passes a messages using the intent's putExtra() function. The message is then displayed to the user in the activity's onCreate function. When the application is restarted due to a orientation change, the message is shown again as it is still in the intent's bundled data.
How can I remove the extra data?

I tried the following:

Bundle bundle = getIntent().getExtras();
if (bundle.getBoolean("showMessage")) {
// ... show message that is in bundle.getString("message")
// remove message
bundle.remove("showMessage");
}

But the message will still be shown after the orientation changed, seems like the intent used is not the one I changed, but the original one. The only workaround I found is to save the showMessage additionally in onSaveInstanceState(). Is there another way? Or is this the way to go?

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Games :: Best Game/graphics Demo To Show Off Android Graphics Engine

Mar 31, 2009

I want to show off how good opengl es can display on my G1. Does anyone know a game with good 3D graphics that I should install for this?

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Android :: Change Widget Dimensions On Orientation Change

Jul 22, 2010

I have a widget which has say, a dimension of 294*72(portrait). But when the orientation is changed, I need to change this dimension of the widget to another dimension which would look good on the landscape orientation.

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Android :: Using Selector To Change ImageButton's Background While Keeping Content Image

Apr 18, 2010

I am currently trying to customize ImageButton to show different draweables as background of the Button while keeping the image set via the src attribute.

That's my custom_button.xml:

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

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Android :: Change Background After Orientation Change

Jun 8, 2010

I have an image set as my background and when it is vertical, the image looks fine. However, when the orentation is changed, the image get streched out. If there a way that I can change the image based on the orentation of the device?

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Android :: Change Orientation Of AlertDialog

Mar 25, 2009

I am building a AlertDialog in java code, so by default it is portrait but I want to show it in landscape orientation. How to do it in Java code?

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Android :: Screen Orientation Change

Oct 8, 2009

I notice when using the emulator that when the screen is flipped, I get a following logcat message:

INFO/WindowManager(589): onOrientationChanged, rotation changed to 1

How can I catch this in the code? I want to know whenever the orientation changes. I assume I have to set a listener, but I can't find an example anywhere.

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Android :: Dialogs On A Change Orientation

Mar 5, 2010

I'm doing an APP that shows some dialogs. Those dialogs are Alert dialogs, and when they are being showed if I change the orientation of the mobile I lost them...they are not being kept on the screen.

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Android :: Views - Orientation Change

Oct 1, 2009

Do Views know changes in orientation? In my case, I create popups from TextView and need to know when the orientation changes(porttrait<-- >landscape). I cannot depend on activity's onOrientationChange.

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Android :: Keep Screen On And Change Orientation

Feb 11, 2009

I am making an Android app which is currently coming along nicely - I've hit upon a couple of stumbling blocks.

1) How do I stop the screen from going dim/off and the phone locking while the application is running?

2) Can I force the phone to enter landscape mode on running my application?

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Android :: Possible Leak In Orientation Change

Jul 1, 2009

My app *sometimes* when orientation change, leaks Activities (getInstanceCount() increases from time to time) and i cannot figure out where references to my Activity or  rather Context are kept - tried to use jhat but it couldn't help me much.

what is strange: it doesn't always happen on orientation change, so its even harder to fix.

btw when doing normal app life cycle - start, do something, exit - everything is ok - getInstanceCount() always returns 1.

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Android :: OnCreate And Orientation Change

Apr 28, 2010

I have an activity that checks stuffs online when it's created (is the GPS on and if not it asks if the user wants to turn it on).

The problem I'm having is that it is also doing it everytime I change the orientation of the screen.

I've read some comments on onConfigurationChanged() but is there a better way to be sure I'm checking the GPS only when the activity is first created?

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HTC Desire :: Change Orientation On Phone

Jul 11, 2010

I have seen online screenshots where applications like contacts etc either appear on full screen, or on a line like this.

At the moment I can only have them on full screen as they come from the people widget...

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Android :: Dialog Is Leaked On Orientation Change

Jun 23, 2010

built a simple app that displays an alertDialog with two buttons.The problem is it's not getting dismissed when i change orientation. After change i get a leak warning on debugger and the dialog appears twice(pressing back hides the first dialog, only a second back dismisses it completely).

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Android :: Change Eclipse Layout Orientation

Nov 6, 2010

I want to know how to change the orientation of my layout inside of eclipse but when I click the "layout" button it still shows it as a vertical layout.

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Android :: How To Change Eclipse Layout Orientation?

Nov 6, 2010

I want to know how to change the orientation of my layout inside of eclipse.

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Motorola Droid :: Orientation Change Hang-ups

Jan 27, 2010

I get a text, pull my phone out of the belt holster.....and read it in normal orientation. With the phone unlocked, I read the text(s) and decide to respond. About 75% of the time, it either takes 5-10 seconds to change orientation when I go to horizontal mode......or it won't even switch at all. It gets so frustrating I feel like throwing the phone.

Fwiw, a quick slide to expose the hardware keyboard will quickly change to horizontal orientation, but sliding it closed brings it back to default orientation, and doesn't seem to affect the speed of orienting back to horizontal.

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Android :: Orientation Change Crashes When Ids Not Unique

Mar 17, 2009

consider the simple layout:

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

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Android :: AppWidget Update On Orientation Change

Dec 29, 2009

I am developing a photo frame widget, all works except on an orientation change to landscape mode my appwidget doesn't display correctly as I have it set to portrait dimensions and it is too large for the display. I would like to run some code to resize the image so that everything displays correctly and it uses all the space that I allot. What is the correct way to do this? I can think of 2 methods however both seem inefficient. The first would be to register a broadcast reciever to take orientation changes, however I don't want to redo my appwidget everytime the phone is turned on its side as the majority of the time the homescreen is not showing when the orientation is changed (ie other apps are used, and I don't need my code running in the background). I only need it to run when the home screen is shown. The second would be to setup a service to manage my appwidget but that also seems inefficient to be always running in the background.

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Android :: Orientation Change Runtime Option

Apr 24, 2009

Is it possible to have a user choose how an app should respond to orientation changes?  I have it set to android:screenOrientation="sensor" in the manifest but I would like users to be able to turn this on and off or set landscape or portrait orientation permanently.

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Android :: Application Restarts On Orientation Change

Nov 2, 2010

When I change orientation application restarts and I lost my current data.. I am using activity group which contain lots of activities when i change orientation application restarts from main activity. is it possible to avoid this application restart on orientation change?

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Android :: Orientation Change Handling On Widgets

May 31, 2009

Some of the content in my widget is based on custom drawing routines. is there any event i can listen for so i redraw and update this custom area when the orientation changes? currently my widget looks pretty screwed until the next widget update is requested.

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Android :: Prevent Orientation Change At Runtime

Apr 15, 2010

Well, preventing an orientation change is easy. But what about doing it at run time.

Say, I have an activity which supports orientation change in normal situations. It has say three Edit Texts.

There's also a button, which when clicked would do some processing in a thread while showing a ProgressDialog which is not cancellable.

Ok, so till the user hits the Button, I want the activity to be able to adapt the orientation changes. I have two layouts files for each orientation with different layout schemes.

What I want is this. Once the user clicks on the button, and the ProgressDialog is showing, I don't want the activity now to be re- created again when the orientation changes. So, before showing the ProgressDialog, is there any way to tell the Activity not to handle Orientation change?

Also, once the process is complete, and the ProgressDialog is removed, I want the Activity again to be able to handle orientation changes.

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Android :: Threads And Screen Orientation Change

Aug 30, 2009

In the following sequence of events:

1. Start a new thread (as a result of a button click - or similar).

2. User changes the screen orientation (causing the Activity that started the thread to be destroyed).

3. Thread finishes, and wants to do some dialog (or any UI) work. However, doing a showDialog, dismissDialog, ... will crash, as the thread it still referring to the old Activity.

This can be solved by updating the data in the thread to refer to the new Activity upon a screen orientation change.

However, couldn't the Android framework just forward any requests from a destroyed activity, to the newly created Activity, saving us developers of handling it ourselves?

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Android :: EditText Handling While Orientation Change

Feb 1, 2010

I have EditText in my application. While entering the text i am changing the portrait mode to landscape mode. Not the entered text is resetting. how do i handle this? Like if i change the orientation what ever entered text should be remain as it is.

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Android :: View Size After Orientation Change

Jun 17, 2009

Is the view aware of the orientation change in order to return updated size after a change in orientation? I'm handling the orientation myself (android:configChanges="orientation|keyboardHidden"). Does it means that I have to take into account the orientation state when querying for view.getHeight()? The view returns the same value as before the orientation change. It this the normal behavior or I should "notify" somehow the view to "refresh" its size.

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Android :: How To Save State During Orientation Change?

Oct 12, 2010

I was looking at the way Android handles orientation change for my application (I discovered that it restarts the mainactivity on orientation change :| ). I've seen that you can ovveride the method protected void onSaveInstanceState(Bundle outState)to save stuff, then have the in onStart. The problem is that I've my view with custom objects and a listview using a custom adapter... Everything is in a ArrayList of these objects, but I've noticed that you can't put arbitrary objects in the bundle! So how do I save the state?

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Android :: Mobile Web App CSS Breaks On Orientation Change

Sep 12, 2010

The CSS for my webapp gets completely misaligned when the mobile device is rotated to landscape (target devices are iphone and android). I tried using the javascript solution explained here in order to get my app to switch between a portrait.css and a landscape.css file on orientation change, but that still didn't work. It even messed up the portrait.css once they were both posted to the live server (although it worked on my local machine).The url for the app is http://mobile.geekstats.com/ Does anyone know how I can fix the landscape css?

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Android :: Keep MediaRecorder Keeps Recording After An Orientation Change?

Oct 12, 2010

Can you please tell me how can I keep the MediaRecorder keeps recording after an orientation change? I try looking into source code of packages/apps/SoundRecorder/src/com/android/soundrecorder/Recorder.java, I don't see it handles that cases.

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Samsung Galaxy S :: Way To Change The Orientation Manually?

Sep 20, 2010

I got tired of the orientation changing when I didn't want it to, such as if I'm in bed or placing it on the kitchen counter. I turned off auto-orienatation, now I want to know if there's a way to change the orientation manually. I would have thought there would be, but I can't find such a feature even after googling it.

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Android :: Handle Orientation Change For A Cupcake Widget?

Jun 19, 2009

Maybe I'm missing something obvious, but how do you handle orientation changes for a Cupcake desktop widget?When it is initially created, the onUpdate method of my AppWidgetProvider calls views.setOnClickPendingIntent(buttonID, pendingIntent) to register for my button events, but when the orientation changes, new buttons are created and I don't have an opportunity to re-register the "onClick" listeners. What is the proper way to do this?

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Android :: How To Change Orientation Of Xml Layout Area In Eclipse

Feb 19, 2010

The xml files that contains the Activity layouts can be rendered by Eclipse.

How do I get that Eclipse screen area to have vertical orientation, not horizontal (inside Eclipse - it correctly shows as vertical in the emulator)?

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Android :: Way To Have View Use Different Layout When Orientation Change Occurs

Oct 2, 2009

is there a way to have a view use a different layout when an orientation change occurs. suppose i want the view to look one way in portrait and another way in landscape. all the same data, but arranged differently.I'm thinking one way to do this would be to have two different linear layouts with android:visibility="gone" and simply display the appropriate one (set android:visibility="visible") based on orientation -- i.e. do this from code.is there a way to do this in xml?  or something like this (i.e. in landscape, put the textview here, in portrait, put it here instead)?

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Android :: How To Change Video Orientation In MediaRecorder To Portrait

Oct 10, 2010

When I record video by MediaRecorder, it always records in landscape mode, regardless of real device orientation. How to force MediaRecorder/Camera use real orientation ?

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HTC Droid Eris :: Why Does Phone Change Orientation In Certain Apps?

Dec 18, 2009

So why does my phone change orientation in certain apps (email particularly) even though I don't rotate the phone? Is there a setting for this I just cannot find?

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Android :: Maintaining State Of Activity On Orientation Change

May 6, 2010

I m currently working on landscape mode for android app in which i want to know   how to maintain the state of the activity and views displayed on orientation change i.e from portrait mode to landscape mode ?

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Android :: Activity Being Killed - OnDestroy - On Orientation Change

Apr 5, 2010

I am working on a MVC implementation for Android (to be subsequently hosted on SF and/or GC).

It works like this:

Activity (View) <=> Application (Controller) <=> Data (Model) <=> Persistence (DB/Network etc)

The scenario is:

1. Activity launch (main/launcher)

2. Notifies Application about performing a data transaction

3. Upon receipt of data response, controller devices which Activity to launch (or update existing)

4. Application has overridden the method onConfigurationChange

Problem: When the orientation is changed, the Application is notified about onConfigurationChange but:

a) The "current" activity is Destroyed and recreated -- which is fine to some extent b) The new instance which is created is automatically => onCreate, onPause, onStop, onDestroy.... now that's catastrophic.

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Android :: Prevent Rotation/change Of Orientation In Certain Tab/activity

Sep 11, 2010

My MainActivity (the one that is started by the android application) is a TabActivity which contains several tabs (which are implemented as activities as well). In a certain tab/activity I want to prevent the change of orientation/rotation when the phone is turned. What is the easiest way to achieve this?

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