You might want to check out the One Screen Turn Deserves Another article. It explains why you need the rotation matrix. In a nutshell, the phone’s sensors always use the same coordinate system, even when the device is rotated. In applications that are not locked to a single orientation, the screen coordinate system changes when … Read more
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); Called on an activity, will lock it to landscape. Look for the other flags in the ActivityInfo class. You can lock it back to portrait or make it sensor/slider driven. More info here: http://www.devx.com/wireless/Article/40792
This issue appeared to start out as a bug with certain hardware see here but can be overcome by using the call to mCamera.setDisplayOrientation(degrees) available in API 8. So this is how I implement it: public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { if (isPreviewRunning) { mCamera.stopPreview(); } Parameters parameters = mCamera.getParameters(); … Read more
You’re layering your Fragments one on top of the other. When a config change occurs the old Fragment adds itself to the new Activity when it’s recreated. This is a massive pain in the rear most of the time. You can stop errors occurring by using the same Fragment rather than recreating a new one. … Read more
By default, the layouts in /res/layout are applied to both portrait and landscape. If you have for example /res/layout/main.xml you can add a new folder /res/layout-land, copy main.xml into it and make the needed adjustments. See also http://www.androidpeople.com/android-portrait-amp-landscape-differeent-layouts and http://www.devx.com/wireless/Article/40792/1954 for some more options.
If you do not want the WebView to reload on orientation changes simply override onConfigurationChanged in your Activity class: @Override public void onConfigurationChanged(Configuration newConfig){ super.onConfigurationChanged(newConfig); } And set the android:configChanges attribute in the manifest: <activity android:name=”…” android:label=”@string/appName” android:configChanges=”orientation|screenSize” for more info see: http://developer.android.com/guide/topics/resources/runtime-changes.html#HandlingTheChange https://developer.android.com/reference/android/app/Activity.html#ConfigurationChanges
Create a layout-land directory and put the landscape version of your layout XML file in that directory.
In the Manifest, you can set the screenOrientation to landscape. It would look something like this in the XML: <activity android:name=”MyActivity” android:screenOrientation=”landscape” android:configChanges=”keyboardHidden|orientation|screenSize”> … </activity> Where MyActivity is the one you want to stay in landscape. The android:configChanges=… line prevents onResume(), onPause() from being called when the screen is rotated. Without this line, the rotation … Read more
This is a pretty hacky solution, but it’s at least something(?). The idea is to use a CSS transform to rotate the contents of your page to quasi-portrait mode. Here’s JavaScript (expressed in jQuery) code to get you started: $(document).ready(function () { function reorient(e) { var portrait = (window.orientation % 180 == 0); $(“body > … Read more
Yes, it’s orientation-dependent in iOS8, not a bug. You could review session 214 from WWDC 2014 for more info: “View Controller Advancements in iOS 8” Quote from the presentation: UIScreen is now interface oriented: [UIScreen bounds] now interface-oriented [UIScreen applicationFrame] now interface-oriented Status bar frame notifications are interface-oriented Keyboard frame notifications are interface-oriented