Android :: Configuration Changed / Orientation From Portrait To Landscape?
Nov 10, 2010
While working on orientation change I have found that the onConfigurationChanged is not getting called when changing the orientation from portrait to landscape.But when I am changing from landscape to portrait the method is getting called. Is it the correct behavior because the onConfigurationChanged should by called whenever we are changing the orientation. (android:configChanges="orientation")? I have also found one strange behavior or error, When we are changing from portrait to landscape orientation the string value is displayed correctly(automatically by android system) but when in am changing the orientation from landscape to portrait the same string is displayed(i.e the string in landscape mode).The expected behavior is the string id specified in the portrait mode should be displayed.Is it an platform bug or something wrong in my code/programming.
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Feb 28, 2009
how the application knows that the view of device has changed from portrait to landscape.is there any way to know the application about view change.
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May 21, 2010
I am using two xml layout file layoutPotrait.xml and layoutLandscape.xml.When device/emulator is in portrait mode i want to set the content view with layoutPortrait.xml file and when I will change the emulator to landscape mode I want to set content view with layoutLandscape.xml file. How can I achieve this?
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Apr 3, 2009
I want to display a table which would fit better in portrait view than in the landscape view. How do i instruct the emulator to change the orientation?
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Jul 8, 2010
How did you support both landscape and portrait for appwidget? the layout of appwidget will never change when orientate the device from landscape to portrait. by the way, would you please tell me which device support both landscape and portrait for appwidget?
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Dec 18, 2009
I'm trying to detect landscape vs portrait orientation with the following:
public void onSensorChanged(SensorEvent event) { float pitch = event.values[2];
if (pitch <= 45 && pitch >= -45) { // portrait }
else if (pitch < -45) { // landscape }
else if (pitch > 45) { // landscape } }
Anyone have something more robust? It works pretty well, except if the phone is in a landscape orientation and the user starts to 'flatten' it out, starts thinking it's in the portrait orientation again.
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Jun 19, 2010
As u know, since android 1.6, there are not dirs on dirs like HVGA-L. Instead, there is only one dir like HVGA. That is, HVGA-P and HVGA-L are merged into one dir, HVGA. So, only HVGA can be selected and by default the emulator is started with portrait mode. Though I can press CTRL+F11/F12 to switch it to landscape mode, I do not like it. What I want is to start the emulator with default mode of landscape. Would anyone know how to do it?
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Nov 1, 2010
I want to change the screen orientation from portrait to Landscape and vice-versa when the user shakes his/her android mobile phone, can any one help how to achieve this, because I do not know what event is fired, at the time his/her shaking thier android mobile phone. For Instance When the users touch the button in UI, touch event is fired, similarly when the user shakes his android mobile phone, what is fired.
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Mar 20, 2010
I've racked my brain for hours over this issue. I have created a main.xml and designed one for the res/layout-land (landscape) format and another one for portrait in res/layout. When I rotate the emulator (ctrl-F11), my app rotates properly to landscape using the correct main.xml, but a subsequent rotation back to portrait just keeps the landscape mail.xml. This was done in a 2.0 AVD.. Out of desperation I downloaded the new Sample Code for Multiple Resolutions and had to create a new 2.1 AVD, to my surprise rotation with this app works correctly as expected. So I then decided to try my app on the 2.1 AVD and it works perfectly. So, is this a Bug in a 2.0 AVD or is there something special I need to be doing for < 2.1 SDK versions?
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May 8, 2010
How can I check if the Android phone is in Landscape or Portrait?
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Jan 2, 2010
How do we change emulator screen orientation to landscape or portrait?
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May 5, 2010
Is there a screen orientation lock feature? I haven't seen it mentioned. In fact a search only turned up mention of it as a hardware button on the iPad. This would be great for using it while lying down, reclining, in the car.
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May 1, 2010
I have a (hopefully) a relatively simple question. How do I tell Android which layout to use for portrait and which layout to use for landscape orientation on my App Widget?
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Jan 9, 2010
I read up on how Android handles "configuration changes" - by destroying the active Activity.The first question I really want to know from Android Team - why? I would appreciate an explanation on how the reasoning went, cause I dont get it =)In any case, the fact that it acts in that way puts us all, as I see it, in a world of pain.Lets assume you have a Activity which presents a number of EditText:s, checkboxes etc. If a User starts to fill that form with text/data and then changes orientation (or get a Phonecall), then all input the User made is gone. I havent found any way to preserve state. That forces us to make extremely painful coding to not loose all data.
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Oct 12, 2010
I know if you change a android phone from portrait to landscape sometimes the app relays its self out on the screen.. so how do I simulate rotating a phone with the AVD? On the Blackberry emulators there's a button in the menu to turn the phone, but I can't find it or any option on the Android ones?
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Jul 12, 2009
I'd like to report a bug we just found while writing a widget.
Summary: There is a widget installed, that defines a configuration activity. If the user changes the orientation while they are in the configuration activity, and they finish that activity in a different orientation that they started, the widget does NOT appear in the home screen after the configuration is done.
How to reproduce: have a minimal widget, with a configuration activity that contains a button, which correctly updates the App Widget when it is clicked (as explained in http://developer.android.com/guide/topics/appwidgets/index.html#Confi...). Add a new instance of the widget, so the config screen shows up. Change the orientation once. Click on the button. Your widget does not appear in the home screen. (Ouch.)
If this has already been reported, or if there's a better way to submit a bug report.
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Nov 8, 2012
I have an Emgeton 7 inch tablet for which I'm trying out some different ICS ROMs on. The best ROM I have found so far has one issue: The screen orientation is 90 degrees out. The accelerometer actually works but it is set to 90 degrees "ahead"
How and where is the default settings for the accelerometer set and is it possible to change it without a re-compile? Would I be able to use anything from the stock ICS firmware to fix it?
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Jun 28, 2010
I would like to restrict my application which uses Tabs to portrait orientation. I have 4 tabs and I set the "android:configChanges="orientation" for all 4 tabs but the orientation still changes when I rotate the phone. Seem pretty straight forward. Am I missing something?
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Feb 18, 2010
For changing from portrait to landscape mode i have done some changes in manifest.xml and included some code in test.java file
In manifest.xml i have included <activity_name android:configChanges="orientation"/>
i entered some data in portrait mode. but when i rotate my mobile from portrait to landscape the control goes to onConfigurationChanged() method.
public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); setContentView(R.layout.screen1_landscape);
}
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Mar 31, 2009
When we try to implement orientation in AP layer, we can set "android:screenOrientation" parameter in AndroidManifest.xml file or call "setRequestOrientation()" method of Activity class. But if I want to porting android in new HW device, how can I do? Do I need to modify the graphic driver, or just add configuration in program. (Actually I do some experiments but my AP cannot rotate) Besides, can every experts tell me when I set the "android:screenOrientation" parameter, which process will read this configuration, pass to where and which process will do the rotation?
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Jan 23, 2010
I've seen references to being able to specify two separate layout xml files for an activity, one for Portrait and one for Landscape. I've not been to find any information on how to do that though. How do I specify for each activity which xml file is it's portrait layout and which is the Landscape layout? Is it also possible to specify different layouts for different screen sizes? If so, how is this done?
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Jun 17, 2010
How to add rotation effect when change mode portrait to landscape? I want to make it smooth.
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Sep 26, 2010
I made an app thats use the camera. The first problem i get was that i can't use portrait preview without the rotation 90º image. I used the solution (landscape for all), but now, only in the real device, when i start the app and i have the device in portrait mode it crashes (need to force close) and only after reboot the phone its possible to connect to camera, even in the camera app.
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Jul 28, 2010
I'm facing some problems with the progress dialogs. I use a managed progress dialog to show the user that an operation is being carried out with the following code written in the onCreateDialog(int id) function.When the operation completes I call dismissDialog(PROGRESS_DIALOG). The problem is that if I rotate the phone while the progress dialog is displayed then when the operation completes the dismiss call has no effect and the progress remains showing. And this I cannot understand why.
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Feb 27, 2009
I have a program with two layouts: - layout/main.xml - layout-land/main.xml
Also, i have some images en drawable and drawable-land...
My problem is: When i change the orientation of the emulator (for examplo: portrait to landscape) i don't know how reload the main.xml layout to update the screen with the new positions....
If I launch the emulator in portrait the application load the portrait layout, and if I launch the emulator in landscape mode the application load the landscape layout, but if I change the orientation in execution mode the application don't load the new layout...
How can I reload the layout?
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Jun 23, 2010
My activity use the same RelativeLayout as it's content view whatever the orientation is. In this RelativeLayout, there is a FrameLayout align to it's bottom, and a TextView above this FrameLayout, just like :
CODE:...........
on android 1.5 device when orientation changed, the TextView lies in the wrong place, middle when portrait, bottom when landscape. on android 1.6 device It is ok.
How could I make it lies in the place where it should be on 1.5 device?
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Aug 3, 2010
Since the FROYO update some stuff is only in Lanscape and it's what I would call upside down. Is there a fix for that? Like Gmail and internet and some others I noticed. Other than that it's smokin fast and everything is working fine for me.
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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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Aug 25, 2009
Does anybody know how to rotate whole system screen from landscape to portrait?The platform is not G1 or any other phones, it's just a normal ARM platform.Not only one application but whole system.
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Aug 20, 2010
I like to use Swype in portrait mode but the Android keyboard in landscape mode. Is there an app to auto-switch the keyboard based on the orientation of the phone?
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