Date: 2020sep23 OS: Android Q. Android: translucent dialog background A. In colors.xml:

<?xml version="1.0" encoding="utf-8"?> <resources> ... <color name="colorSemiWhite">#A0FFFFFF</color> <!-- This is AARRGGBB --> </resources>

In your dialog:

@Override public void onCreate(Bundle icicle) { super.onCreate(icicle); ... getWindow().setBackgroundDrawable( ContextCompat.getDrawable(main, R.color.colorSemiWhite)); // Optionally: // Don't dim everything outside the dialog getWindow().setDimAmount(0); ... }