Lock screen orientation when targeting Android API 27 with a non-opaque activity

Question

I have an activity that has android:windowIsTranslucent set to true and android:windowBackground set to a translucent background. I ju

Answer 1

1) Remove this

android:screenOrientation="portrait" 

from minifiest.xml

2) on Activity add these two lines

 protected void onCreate(Bundle savedInstanceState) {
     setOrientation(this)
     super.onCreate(savedInstanceState);
     // other other all code here

 }

3) Just copy-paste the code in your Activity

 public static void setOrientation(Activity context) {
          if (android.os.Build.VERSION.SDK_INT == Build.VERSION_CODES.O)
              context.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
          else
              context.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
    }

Answer 2

I recently faced the issue and here's the solution.

No need to change the screen orientation parameter which you set at the android manifest file.

Just add two folders in

res>values
as  res>values-v26 
and res>values-v27

Then copy your styles.xml and themes.xml file there.

and change the following parameters from TRUE to FALSE.

<item name="android:windowIsTranslucent">true</item>

<item name="android:windowIsTranslucent">false</item>

It will work.

A common bug of Android 8.0

Answer 3

I solved this issues by changing this line in NoActionBar styles

In target version 27 only i got this issue and i solved by using below line

<item name="android:windowIsTranslucent">false</item>