Android :: Switching To Landscape Orientation Is Slow
Sep 4, 2010
This is getting called in on Create(), how can I speed up orientation switching? private void setupChartView(int position){
Quote my Quote = quotes Adapter.get Item(position);
this.symbol = my Quote.get Symbol();
String url = "http://chart.finance.yahoo.com/z?s=" + symbol + "&t=1d&q=l&l=on&z=l&p=s&a=v&p=s&Lang=en-US®ion=US";
if(chartImageView != null)
imageDownloader.download(url, chartImageView);
if(chartImageViewLandscape != null)
imageDownloader.download(url, chartImageViewLandscape);}
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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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Oct 14, 2010
I have a samsung tablet.I have a test widget.When I change orientation the widget disappears, but is actually still there (I can long press to remove it).in my res directory,I have resdrawable resdrawable-hdpi resdrawable-ldpi resdrawable-mdpi reslayout reslayout-land reslayout-large-land With valid values in all of these areas, but the widget just will not appear when I go into landscape mode.
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Jun 17, 2009
My application crashes when I switch the Android Emulator to landscape mode. But when I start the application, everything works fine, until I switch to portrait mode again.
The error only occurs when I switch from one mode to another. When I debug my app while switching to the other mode everything works fine until my program counter jumps out of the onCreate() function.
this is an error message i picked out: java.lang.RuntimeException: Unable to start activity ComponentInfo {com.prog.drink/com.prog.drink.App}: java.lang.IllegalArgumentException: Wrong state class -- expecting View State
Any idea what I could have done wrong in my app?
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Apr 11, 2010
This is probably a pretty easy to answer question, but I can't find the solution myself after a couple hours of searching the documentation and Google.I set the orientation of my Android app to landscape in the AndroidManifest.xml file: android:screenOrientation="landscape"
However, when I run the app in the simulator, it appears sideways and in portrait mode. How can I switch the emulator to landscape mode on a mac? It's running the 1.6 SDK.
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Jun 17, 2010
Apparently, since Froyo it's possible to display app in clockwise landscape orientation (e.g. as demoed here: http://www.youtube.com/watch?v=R4YazuITS1o). However, I can't find anything related in the SDK. How can I display my app this way?
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Jun 3, 2010
I'm new to android and i was wondering if there's anyway to force landscape mode at all times. Another way of saying it, i never want to see portrait orientation on my device. Is there any settings or apps that will force landscape mode at all times (unless an app requires portrait)?
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Nov 6, 2010
I have an application that works fine with smaller images (say 1024x768 or so) but when you rotate the phone into a different orientation (say landscape to portrait) mode with a larger image on the screen, and then call ImageView.setImageUri() it goes into the BitmapFactory.class and never returns.So the app eventually times out. Never throws an exception, just never returns. Has anyone else seen this? Sounds like a bug in the Android code more than something I am doing since it works fine for smaller images.
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Dec 13, 2008
My G1 phone slows down after a while from switching it on, and if I switched off and re-switched it on it will get back to its normal state. So any clue why is that happening? I downloaded many apps from the market, is that the reason? and is there any application that shows the running applications in the background and their CPU and memory usage? And when I open the messaging and scroll through the messages it is way too slow.
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Jul 13, 2009
Is there a trick to getting the Hierarchy Viewer to work in landscape orientation, or is it completely broken? In Pixel Perfect View it shows my screen sideways (i.e. in portrait aspect ratio), but when I click on the views in the explorer area it outlines the wrong areas of the screen. It looks like the outlining assumes the display is in landscape orientation, so it outlines where the views would be if it were oriented correctly. Obviously fixing the display would be the best solution, but barring that I'm OK tilting my head if only the outlining would agree with the display. Anyone know a way around this?
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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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Jan 24, 2010
I have a 3 nested ViewFlippers which seem to be working ok except that when I change the screen orientation the view flip back to the first one of my views, giving the user the impression it went back a few steps.I am a bit stumped as to what to do and was hoping someone had some experience with this.
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Feb 11, 2009
I have written a small example which displays the photos from the server. Its working fine when the device is in one of the mode (landscape of potrait). But if I switch to landscape to potrait or potrait to landscape while downloading the photos from the server, I am getting NullPointerException, showing with androidRunTimeException.
I am using LinearLayout -> ImageView
I am using threads to download the images.
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Jun 6, 2010
I'm not sure if it's normal, but for the built-in messaging app, it takes literally about 9-12 seconds to switch to landscape keyboard when tilted.
Similarly, with eBuddy, the messaging app, it tends to take 5-7 seconds. Is it just me or is that really slow? I don't expect it to be instantaneous, but taking more than 3 seconds or so seems a bit much. Anyone else having issues?
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Feb 18, 2010
I have application in landscape orientation, I set it as <android:screen Orientation="landscape"> in Android Manifest.xml. But when my app starts another activity - default internet browser - it starts in portrait orientation.
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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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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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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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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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Jun 4, 2010
So when today the phone would switch into landscape mode when i would text, but now it no longer does. what is the deal!
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Nov 24, 2009
I currently have a TabHost with 3 tabs.The content of each tab is an activity. The first and second tab make HTTP connections.The first tab still uses the UI thread (which i'm changing) so it would explain the slow orientation change since it's creating a fresh activity and making all those connections again. What I don't understand is why if I am on say Tab 3 which makes no connections at all does changing the orientation take such a long time (up to 5 seconds).In playing around with the TabWidget I noticed something that may be related.
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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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Feb 25, 2009
I am using Intents to switch between activities in my Android app. I am putting data in the Intent for use in the next activity. When I switch the phone between landscape and portrait modes, the values passed from the intent are lost and I get a NullPointerException.
Can someone please tell me what could be wrong.
There's a lot of code to post it entirely. But if someone needs to look at specific parts of code, I can post it here.
Edit
I solved the issue of state not being saved. But another problem I faced is that none of the buttons on the screen work after the orientation has been changed. On button press, I get this warning in LogCat
02-25 23:07:49.190: WARN/WindowManager(58): No window to dispatch pointer action 0
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May 25, 2010
Had the phone about 30 hours or so, been happily learning the ins and outs of my first android. Was streaming Pandora for a couple hours while working, then went to type a text and the full size landscape qwerty wouldn't come up only that aweful portrait mode cramped keyboard that makes me feel like I am typing on a blackberry now the browser won't switch to landscape either which is 'incredibly' annoying. Teeter seems to work fine, on level 19 and also "Bubble" an app for Leveling which switches to landscape in either direction.
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Dec 18, 2009
I just got my eris yesterday (posting with it now), and I am finding typing in landscape quite uncomfortable while headphones are plugged in (i listen to a lot of music). The plug is vertical and doesn't allow me to grip the phone naturally. So, I was wondering if there was a simple way to get the reverse of landscape view. As in the eris's physical buttons would be to the left while typing instead of the right.
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Jan 1, 2010
I am trying to figure out if landscape orientation should be available all the time, or only for certain programs and apps. My home screen does not rotate, for example. Neither does People (contacts) or my call screen when I'm using the phone. Any clarification would be appreciated.
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Feb 10, 2010
I just got my Droid Eris. It was working fine to go back and forth between landscape and upright, until I calibrated the G-sensor. Now I'm not sure what's going on. I'm not sure if I've done the calibration correctly (I assume you just sit it upright on a flat surface?) or what. It will randomly go into landscape mode, but then I can't get it back upright unless I go to the home screen.
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