Android, Landscape Only Orientation

how to set landscape orientation in particular activity?

To lock your Activity during runtime, you can use

// lock orientation to landscape
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

All you need now is to determine the current orientation, and pass it to keep it locked that way.

First, add these imports:

import android.content.pm.ActivityInfo;
import android.content.res.Configuration;

Then you can add this to your Activitys onCreate():

protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    // lock the current device orientation    
    int currentOrientation = this.getResources().getConfiguration().orientation;
    if (currentOrientation == Configuration.ORIENTATION_PORTRAIT){
        this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION‌​_PORTRAIT);
    }
    else{
        this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION‌​_LANDSCAPE);
    }

    // ... rest of your code 

}

See ActivityInfo documentation for the other orientation configurations.

Android Studio - landscape only but still rotate

You should add the sensorLandscape screenOrientation tag to your activity in the android manifest file and you should be good to go.

android:screenOrientation="sensorLandscape"

Make sure to add this to all the activities that you want to have in landscape mode.

how to force an Android app into landscape only or portrait only?

 <activity android:name="Intro"
            android:screenOrientation="portrait"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="com.gmaninc.package.INTRO" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>

one of the following in each activity in the manifest

android:screenOrientation="portrait"
android:screenOrientation="landscape"

Android Rotation Landscape Only

Use android:screenOrientation="sensorLandscape" instead.

Landscape orientation, but can be either normal or reverse landscape based on the device sensor. Added in API level 9.

See Dev Guide

Note that if you use android:configChanges="orientation" to avoid screen rotation in the activity tag, the screen will not rotate at all. If you want it to rotate only in landscape, use the option described above and remove the orientation flag. Check what is the behaviour you want before using this option or not.

Android force orientation one way only

I believe you can find what you need here:
activity | Android Developer #android:screenOrientation

There are more options than landscape and portrait, I believe the ones helpful to you would be "reverseLandscape" and "sensorLandscape". Since the volume button differs from tablet to tablet, you may want to use "sensorLandscape" and ask the user turn their tablet to such orientation, just a suggestion.

Edit: Just saw you said you are building for one device, I guess "reverseLandscape" will do just fine.

Android: Force landscape orientation but allow rotation

You just need to set the android:screenOrientation attribute in your AndroidManifest.xml to sensorLandscape

Android App Landscape Only

Use android:screenOrientation="sensorLandscape" but it will work only if you are building your project on Android 2.3 or above.

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