Here we are going to see how to make a button transparent in Android…
By using android:background=”@android:color/transparent” the button background will become transparent
<Button android:background="@android:color/transparent"
android:text="@+id/Button01"
android:id="@+id/Button01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#ffffff" />
By using android:background=”@android:color/transparent” the button background will become transparent