Whenever I turn the device sideways, everything in my app also turns and becomes distorted. How do I lock it into vertical?
In your AndroidManifest.xml set the orientation on your Activity to portrait like this.
<activity android:name=".YourActivity"
android:label="#string/app_name"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
Whenever I turn the device sideways, everything in my app also turns and becomes distorted. How do I lock it into vertical?
Generally, you do not want to do that.
First, some users have devices with physical keyboards that only operate in landscape mode. Perhaps, for your app, that does not matter. However, any app that uses text input should support landscape mode for these users.
Second, few TVs will operate in portrait mode. It is reasonably likely that your app will look bad on Google TV when it starts supporting Android applications.
Third, even for users whose devices are not forcing them to use landscape, simply prefer to use landscape, for whatever reason.
All of these user bases will think less of applications that force portrait mode, and their opinions may be reflected in ratings on the Android Market.
Most applications should support portrait and landscape, through careful design of the existing layouts and by using res/layout-land/ to provide replacement layouts where a significant change is required.
For the activity you have defined in the manifest, you need to set the android:screenOrientation.
Set it to portrait or landscape. Make sure it is not sensor.
Take a look at these SOqs:
Disable screen rotating on Android
Prevent screen rotation on Android
Related
In Android on screen, rotation activity is getting recreated, even if the rotation is prevented in the manifest. It is only on Oneplus6t(android 9) in lower OS versions it is working fine?
<activity
android:name="com.oracle.aconex.drawing.DrawingActivity"
android:configChanges="orientation"
android:exported="false"
android:screenOrientation="fullUser"/>
From Android Developers website,
"fullUser" If the user has locked sensor-based rotation, this behaves
the same as user, otherwise it behaves the same as fullSensor and
allows any of the 4 possible screen orientations. Added in API level
18.
From my understanding, as long as a user doesn't lock the auto-rotate feature, the device and apps can still respond to auto-rotation. I recommend using portrait or landscape to fully prevent your app from auto-rotation. If you need some freedom on rotation, use sensorPortraint or sensorLandscape.
Don't know the exact reason but when I added screenSize in the configchanges it started working in the device.
<activity
android:name=".drawing.DrawingActivity"
android:configChanges="orientation|screenSize"
android:exported="false"
android:screenOrientation="fullUser"
/>
I am working on android app and wish to make this app work only in portrait or reverse portrait mode. In the manifest file I mentioned screen orientation value as "sensorPortrait" but app works only in portrait mode, i.e., if I hold my phone upside down, nothing changes in my app. Although, I do have other apps on my phone that work in both portrait and reverse portrait mode. I have seen similar question asked before but suggestion given don't work as those questions were asked way back and suggestion given might not be a good answer anymore. Any recommendations? Thanks!
You can add in your AndroidManifest.xml file, you need to configure the to use the orientation from the sensor. This should be the default, but you can force it to the sensor's orientations, for all 4 possible orientations, with android:screenOrientation="fullSensor"
<activity android:name=".MainActivity"
android:screenOrientation="fullSensor"/>
I'm currently writing an Wallpaper application for android. I wish to support rotations that's no problem. For a better usability I need to know if the homescreen rotate the screen.
Is there a default that all phones doesn't rotate there homescreen? Currently all phones I have seen didn't rotate. But tablets change the orientation of homescreen. Or there are differences between manufacturers?
I have search for a method (or constant) like boolean supportRotation();
Does anyone have any experience with this problem?
Thanks for help.
I've read that this is not possible, given the fact that any particular user could be using any one of hundreds of launchers available for the home screen.
You could explicitly allow the user the option of enabling the rotation feature, depending on their home screen configuration. i.e - just a simple checkbox in your app.
Alternatively you could extend the app for more screen sizes. Since you are already dealing with different screen widths/heights you could just make this compatible for all screens. Not as trivial though.
You can determine the screen orientation within the app itself but the home screen is a different story altogether.
If someone does have a solution I'd be glad to know, but I don't believe it exists, I've experienced the same problems as you too.
Almost all android device support rotation or say orientation modes.
I suggest you must specify which orientation of your app.
Don't apply the orientation to the application element, instead you should apply the attribute to the activity element, and you must also set configChanges as noted below.
Example:
<activity
android:screenOrientation="portrait"
android:configChanges="orientation|keyboardHidden">
</activity>
This is applied in the manifest file at, for example, /platforms/android/AndroidManifest.xml.
I am an Android developer and have recently made an app for a client. The screen orientation should only be available in portrait, so I have added the option android:screenOrientation="userPortrait" to each and every activity in my manifest.
Despite this, my client keeps telling me that the app displays in landscape on her Samsung Tablet. I don't know why this may be, according with http://developer.android.com/guide/topics/manifest/activity-element.html the orientation should never be landscape. In all of my tests it is displaying correctly (portrait mode), but I don't have access to her device and don't know what is going on.
Any help would be appreciated. Thanks!
You should write this :
android:screenOrientation="portrait"
Hi i am developing android application in tablet version. Here i am facing problem with orientation so i want to make my application in portrait mode only. For that i Used attribute like below snippet for each and every activity in my application.
android:configChanges="keyboard|orientation|keyboardHidden"
android:screenOrientation="portrait"
Application is running perfectly while testing in portrait mode. But it is not good while testing application with tablet physical position with landscape. It is first going to landscape then immediately going to portrait.
I used programmatically making the activity in portrait but no effect. Please provide me any help.
Here is my programmatic orientation fix
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
I tested in Motorolo device
Please suggest me to avoid my application going to landscape.
Try this...
<activity
android:label="#string/app_name"
android:name="abc.xyz.dd.MainScreen"
android:screenOrientation="portrait"
android:configChanges="keyboardHidden|orientation">
By adding this in manifest file it will prevent from changing to landscape mode.
Finally i find the reason why orientation changes are occurring in android tablet. In ICS (version 4.0+) the tablet have the option like "Don't keep activities" in settings>> Developer tools>>
If the user checked that option the paused activity will killed and created when it is call again. what i mean the activity won't go for onPause() state it will go for onDestroy() and it will created again when press on back key. So the orientation behavior is different.
I did not get the idea how to handle it from our android code