What is the use of 0xff -colors in android?

Question

Sometimes Android projects have color formats such as "0xff4ca665".

What is the purpose of using them?

Answer 1

Some programmers have more experience with explicit 24-bit colors. And sometimes it matters in Android, alpha is not masked in some more direct manipulations in renderscript. And how do you want “0xff4ca665” to tell the system that you want “0x4ca665”, and hoping that something else will mask it correctly, it looks like a fragmentary bet that literally can't even break the hour loop.

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Answer 2

, #ff4ca665... ARGB.

XML, ff , .

0xff4ca665 Java.

body {
  background: #4ca665;
}

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Answer 3

Some Android APIs, such as View.setBackgroundColor (), expect integer colors in ARGB format colors. Thus, it 0xff4ca665indicates a fully opaque RGB color #4ca665, while an integer 0x4ca665is equal 0x004ca665and, therefore, means a fully transparent color.