Android default screen orientation

Question

In my manifest file, I set

    android:screen orientation="portrait" 

for my MainActivity. I did this so that my initial tutorial can work well. After the initial tutorial has concluded, I now want my MainActivity to behave normally ie when the user rotates the device let it change by itself(the default behaviour). Is there a way to that

Answer 1

Remove android:screenorientation="portrait" from Manifest First .

From Run-time

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

Also add this in your manifest file (under activity):

android:configChanges = "orientation"

Change orientation at runtime

http://techblogon.com/android-screen-orientation-change-rotation-example/

Answer 2

从清单中删除android:screenorientation="portrait" ，并确保设备上的旋转功能处于开启状态

Answer 3

Remove android:screenOrientation="portrait" from manifest file and make sure your device setting isint set to "locked rotation"

also android:screenOrientation="portrait" works for whole manifest file level and also it works individually for activity tag level in manifest, so if android:screenOrientation="portrait" is added in activity tag level , remove it from there too.