Android：强制横向方向但允许旋转

Question

I want to force my Android app into lanscape orientation. I managed to do that by adding screenOrientation in AndroidManifest.xml like this:

  <activity android:name="SomeActivity"
              android:label="@string/app_name"
              android:screenOrientation="landscape">

or by adding the following line in the onCreate function of my only Activity :

setRequestedOrientation (ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

The problem is that both the solutions above disables rotation. How do I force landscape but allow rotation? I want to be able to rotate the phone 180 degrees. From landscape to the other landscape.

Answer 1

您只需将AndroidManifest.xml中的android:screenOrientation属性设置为sensorLandscape

Answer 2

Refer to this link http://developer.android.com/reference/android/R.attr.html#screenOrientation

For your activity, set the attribute as sensorLandscape

This enables to have the screen in landscape orientation, but can use the sensor to change which direction the screen is facing. Corresponds to SCREEN_ORIENTATION_SENSOR_LANDSCAPE.

Code sample

 setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE);