六角透明颜色[复制]

问题：

This question already has an answer here: 这个问题在这里已有答案：

Understanding colors on Android (six characters) 7 answers 了解Android上的颜色（六个字符） 7个答案

I'm working on implementing a widget transparency option for my app widget although I'm having some trouble getting the hex color values right. 我正在为我的应用程序小部件实现一个小部件透明度选项，尽管我在修复十六进制颜色值时遇到了一些麻烦。 Being completely new to hex color transparency I searched around a bit although I couldn't find a specific answer to my question. 作为十六进制颜色透明度的全新，我搜索了一下，虽然我找不到我的问题的具体答案。

I want to set transparency by hex color so let's say my hex color id "#33b5e5" and I want it to be 50% transparent. 我想用十六进制颜色设置透明度，所以让我说我的十六进制颜色ID“＃33b5e5”，我希望它是50％透明。 Then I'll use "#8033b5e5" because 80 is 50%. 然后我会使用“＃8033b5e5”，因为80％是50％。

I found a useful chart here: http://www.dtp-aus.com/hexadeci.htm . 我在这里找到了一个有用的图表： http ： //www.dtp-aus.com/hexadeci.htm 。 With this data I managed to come up with this: 有了这些数据，我设法得到了这个：

0% = #00
10% = #16
20% = #32
30% = #48
40% = #64
50% = #80
60% = #96
70% = #112
80% = #128
90% = #144

Now the issues start appearing when I get higher than 100 in hex. 现在，当我以十六进制高于100时问题开始出现。 Hex color codes can only be 8 symbols long right? 十六进制颜色代码只能长8个符号吗？ For example #11233b5e5 (80%) crashes. 例如＃11233b5e5（80％）崩溃。

What can I do to enable me to use the higher numbers aswell? 我能做些什么才能让我使用更高的数字呢？