Android :: Screen Orientation Landscape Back To Portrait Not Working
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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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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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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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 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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May 8, 2010
How can I check if the Android phone is in Landscape or Portrait?
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Sep 3, 2010
I want my view to change when it has changed to horizontal orientation code...
This works, but I want my layout to switch back when it is in portrait mode.
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Jul 23, 2010
I've met a very strange issue that my app will crash if user first switch to landscape, then back to portrait. I found that Activity.setContentView() will throw an inflate exception. It said:
android.view.InflateException: Binary XML file line #29: Error inflating class <unknown>
This crash will happens on Android 1.6/2.1/2.1-update1, but doesn't happen in 2.2 Froyo. In Froyo, everything works fine. If the XML I used is invalid, it should happens every time when I try to inflate. But why it's okay on the first time of running and switching to landscape? This also only happens on some devices. For example, there two HTC G1 with same software installed on it and has the same configuration, one has this issue and the other one works fine.
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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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Apr 28, 2010
Is anyone elses phone not flipping back and forth from portrait to landscape view when they rotate the phone? Ive check the settings and it is set to change orientation when phone rotates but for some reason it is not doing it.
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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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Feb 1, 2009
Is there a way to pro grammatically force the screen to change between landscape and portrait mode? I want to allow the user to choose a menu item to rotate the screen, instead of relying on pulling out the keyboard. I am looking for something like activity.change Screen Orientation, but couldn't find such a thing in the API docs.
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Mar 28, 2010
How to rotate the screen to landscape (or portrait) by programmable way? I am trying to make it independent when user rotates the screen.
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Feb 23, 2010
I worked in a tabactivity, I set the gravity for tabs as bottom. If I change the screen from portrait to landscape, I can't see the tabs. How can I do it?
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Sep 8, 2010
I am using VideoView component for streaming video in Android , but I am not getting the full screen display.
Kindly provide the code to display full screen in portrait/landscape mode.
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Sep 9, 2010
Is there anyway to find out if a device is portrait or landscape by default? In that I mean how you normally use the device.
Most phones have a portrait screen for normal usage but is there some flag for finding that out?
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Sep 24, 2010
We currently use Activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_x) to set (and 'freeze') the orientation of our app. Froyo now supports two landscape modes tho and we'd like to allow our users to orient the app to 'landscape right' ... ie, the orientation obtained by turning a device naturally oriented to Portrait 90 degrees clock wise.
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Feb 19, 2010
I searched for this but couldn't find a solution. Is there anyway to get the home screen and subsequent side screens to go into landscape mode? I've seen some other Android Phones/Tablets doing this and would like to be able to do so. Or does anyone know if this will be an option in the 2.1 update? I heard that the Droid used to do this, and then some update messed it up, but then saw it going into landscape mode on the video they posted today of the Droid running 2.1.
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Feb 23, 2010
How can the landscape screen orientation be restricted in android?
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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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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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