Develop Reference

Preventing an App from changing to Portrait Orientation when the Device is unlocked

I'm developing a game that runs in a wrapped webview for Android devices. Everything is working as expected--in this case, I have locked my view to landscape orientation, and prevented the device from restarting the activity if the phone is rotated.
However, if I put my device to sleep and then unlock it, I see my application in portrait mode for a moment, until my device re-orients to landscape. This behavior makes sense, since a phone is naturally used in portrait orientation, but I don't want my activity to switch from landscape.
If I start any other game, by which I mean those presumable written in native code, that is locked into landscape mode, and then lock and unlock my phone, the game doesn't do the same quickly-switch-from-portrait-to-landscape dance.
What am I missing?
In MainActivity I have
this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE)
in several places, including onConfigurationChanged, onWindowFocusChanged, onPause, and onResume.
Here is how my activity is defined in my AndroidManifest
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:hardwareAccelerated="true"
android:screenOrientation="sensorLandscape"
android:configChanges="orientation|screenSize"
android:launchMode="singleTask"
android:alwaysRetainTaskState="true"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen"
android:windowSoftInputMode="stateAlwaysHidden" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
Thanks for any help/advise!
-J.L.

You forgot to remove sensor from the screenOrientation tag. Try this:
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:hardwareAccelerated="true"
android:screenOrientation="landscape"
android:configChanges="orientation|screenSize"
android:launchMode="singleTask"
android:alwaysRetainTaskState="true"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen"
android:windowSoftInputMode="stateAlwaysHidden" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

the app still shows as the incorrect orientation for a split second when the phone is unlocked.
Did you move setContentView(R.layout.main) to the onResume, AFTER where you put your orientation code? I would try setting the orientation, then the setContentView()

How to disable splash screen auto rotate in android app?

I need to disable splash screen auto rotate.
Need to show splash screen in portrait mode only. But app must rotate with auto rotate. How to do it in android studio ?

Add in Manifest file-->
<application
.........
>
<activity
android:name=".SplashScreenActivity"
......
android:screenOrientation="portrait"
/>
</application>
or for horizontal mode
<activity
...
...
android:screenOrientation="landscape">

In Your AndroidMainfest.xml put the screen orientation to your splash
<activity
android:name=".SplashScreenActivity"
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>

In the manifest, set this for your splash screen activity:
<activity android:name=".YourActivity"
android:configChanges="orientation"
android:screenOrientation="portrait"/>

In manifest you can set the specific activity to be in portrait mode using
android:screenOrientation="portrait"

Just add below line in your manifest file, in splash activity tag
android:screenOrientation="portrait"
Something like below
<activity
android:name=".SplashActivity"
android:screenOrientation="portrait" >

Add to your splash activity declaration in the manifest this lines:
<activity
android:name="SplashActivity"
android:screenOrientation="portrait"
android:configChanges="keyboardHidden|orientation|screenSize">
Find relevant discussion here.

You Can do it by couple of ways
One
Inside the onCreate method of your activity
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
Two
In manifest file
<activity
android:name=".NameOfYourSplashScreenActivity"
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>
Hope it helps

Add following code to your splash screen activity declaration in Manifest
<activity android:name=".YourActivityName"
android:label="#string/app_name"
android:configChanges = "orientation"
android:screenOrientation = "portrait">
or else add
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
to YourActivity.onCreate()
you can find a sample demo file here in github

try this in manifiest
<activity
android:name=".SplashScreenActivity"
android:label="#string/app_name"
android:screenOrientation="portrait"/>

Titanium Appcelearator App is rendered in landscape mode even if Android's "ScreenLock" mode is enabled

My Titanium Appceleartor(version 3.1.3) app has both portrait & landscape orientations. But in Android device, even when i enabled the "screen rotation" mode, my app renders in both orientation modes. How to prevent the App from rendering in landscape mode when device is "screenLocked"?
My TiApp.xml;
<activity android:alwaysRetainTaskState="true"
android:configChanges="keyboardHidden|Orientation"
android:label="SampleApp" android:name=".SampleAppActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>

you need to set protrait orientation to each activity tag
<activity android:alwaysRetainTaskState="true"
android:configChanges="keyboardHidden|Orientation"
android:screenOrientation="portrait"
android:label="SampleApp" android:name=".SampleAppActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
so i would suggest to use custom android manifest.

Copy your AndroidManifest.xml file from build/android folder and put it into the platform/android/ folder of your application. If folders are not present then create them. Now put a android:screenOrientation="portrait" in each activity tag like this:
<activity android:name="YourActivityName"
android:label="YourActName" android:theme="#style/Theme.Titanium"
android:configChanges="keyboardHidden|orientation"
android:screenOrientation="portrait" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

Hi all thanks for the help. I have added these things already in my tiapp.xml. But still problem exists. I figured out that i have set OrientationMode property to all windows in my app, which should not be set because Android takes all 4 orientations by default. We don't need to specify it in code. So i removed this property & now everything works fine..

How to set android:screenOrientation="portrait" for Camera

I am using Samsung Galaxy Note to run a phonegap application.
When I take picture, I can see that screen rotates just before entering camera.
How can I disable this?
I have tried to force portrait orientation on both, the main thread & camera activity,
but those do not seem to work:
<application android:icon="#drawable/icon" android:label="#string/app_name"
android:debuggable="true">
<activity android:name=".App" android:windowSoftInputMode="adjustPan" android:screenOrientation="portrait"
android:label="#string/app_name" android:configChanges="orientation|keyboardHidden">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.phonegap.DroidGap" android:label="#string/app_name"
android:configChanges="orientation|keyboardHidden">
<intent-filter>
</intent-filter>
</activity>
<activity android:name="com.android.camera.Camera"
android:screenOrientation="portrait">
</activity>
</application>

You need to add the permission on the manifest:
<uses-feature android:name="android.hardware.screen.portrait" />
Doc android of balise uses-feature
For example, if your app requires portrait orientation, you should declare <uses-feature android:name="android.hardware.screen.portrait"/> so that only devices that support portrait orientation (whether always or by user choice) can install your app. If your application supports both orientations, then you don't need to declare either.

How do you take picture? If you are sending intent to fire up camera application you lose control about orientation changes. Also note, that before going to sleep and locking screen launcher forces your application into portrait with an butt-kick regardles of the settings or overriding methods. Most probably you can not and behaviour on other devices could be different.

Use android:configChanges="orientation|keyboardHidden" where you are setting screen as portrait.

There are 2 things here that should be taken into account. First, this
android:screenOrientation="landscape"
has no effect if in the java code there is something like this:
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
Then, there is this other method that could be bothering you:
mCamera.setDisplayOrientation(90);
This would rotate your camera preview.
Hope this helps!

Android app closes when the orientation is changed

I want my app to run in the portrait view so I made the following changes in the android manifest file.
android:screenOrientation="portrait"
It stays in the portrait view for a second and then it closes.. I had assumed this is the only change i had to make..but i also added this but it isnt working
android:configChanges="orientation"
Am i missing something?
<activity android:name=".Menu" android:label="COMEDY TRIVIA"
android:screenOrientation="portrait" android:configChanges="orientation"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen">
<intent-filter>
<action android:name="nik.trivia.MENU" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>

Try this adding android:configChanges to your AndroidManifest file in the activity tag
<activity android:name=".Fourth" android:label="Fourth" android:configChanges="orientation|keyboardHidden"></activity>
Hope this works for you.