Set android:windowIsFloating programmatically
One possible solution is to create a new style with only the windowIsFloating attribute set. Then, overwrite the getTheme method on your targeted activity in order to set that style. (Assuming AppTheme.NoActionBar is you current style).
styles.xml
<style name="MyCustomStyle" parent="AppTheme.NoActionBar"> <item name="android:windowIsFloating">true</item></style>TargetActivity.java
@Overridepublic Resources.Theme getTheme() { Resources.Theme theme = super.getTheme() theme.applyStyle(R.style. MyCustomStyle, true) return theme}