android - making the KeyboardView transparent -

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i making own inputmethodservice.everything working fine.but have 1 issue.i want make keyboard view transparent.that means keypad view cover enter screen & user can see whole screen while typing. tried lot make transparent setting background color,drawable,but not success. please suggest me how make custom transparent keypad. using method settheme (int theme) work?

in configuration setting android:background="@android:color/transparent" property of android.inputmethodservice.keyboardview , using slighltly transparent custom key drawable selector i.e. android:keybackground="@drawable/custom_transparent_key" works fine.


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