Use FrameLayout as a parent layout and stack it up with as many layouts as you want. Thats one part of the answer. To make a layer (a layout in this case) transparent, set the alpha value in its background (a color) to 0. For instance android:background="#00777777" sets a background which is translucent with a dull gray.
* The first two values are alpha values. In the upper case, the values are set as '00', so that means 100% transparent effect.
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