windowSoftInputMode has no effect in Android M

Question

I have a MainActivity with android:windowSoftInputMode="adjustNothing" set in the AndroidManifest. The Theme has parent Theme.AppCompat.Light.NoActionBar. I add a DialogFragment to this activity and show an AlertDialog inside of it, then set alertDialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN); inside the fragment.

Now, on Android 5.1.1 it works as expected. The keyboard does not auto show when the dialog is created. When the user taps on an EditText inside of the dialog, the keyboard pops up and resizes the activity so that it won't overlap.

The problem is that on Android M, this doesn't happen. The keyboard is indeed not shown when the dialog is created, but when it pops-up after the user touched an EditText, it overlaps the dialog.

Any idea why this happens on M, but on previous versions everything works fine?

Edit: Apparently after creating a HelloWorld project with only the basics of the issue, I've found out that the below 2 Activity Theme elements cause the keyboard to not resize. If anybody has any permanent solution to this matter, I'm all ears (or rather eyes).

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="android:windowDrawsSystemBarBackgrounds">true</item>
    <item name="android:windowTranslucentStatus">true</item>
</style>

Answer 1

I've figured out that the following 2 lines from the Activity Theme causes the keyboard to not resize.

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="android:windowDrawsSystemBarBackgrounds">true</item>
    <item name="android:windowTranslucentStatus">true</item>
</style>

For now, this is a quick fix. If anybody has a permanent solution to maybe retain those 2 lines but also fix the problem, please do post another answer.