Setting color of a Paint object in custom view

Question

I am trying to make a custom view and have declared the styled attributes like the below:-

Answer 1

If I understand correctly, the constant 0x000000 results in transparent black since there is no Alpha component specified. The Alpha value is the first byte of a four byte color value. The constant for opaque (solid) black is 0xff000000. In other words, the color 0x000000, which is the same as 0x00000000, results in you drawing completely transparently. The constant for Red also looks wrong, resulting in transparent green.