@string和@ +字符串之间的区别？

Question

Sometimes, when I want to refer a value to a string reference I use @string/blabla, but sometimes, it gives me an error that I can run the code unless i change @string to @+string What's the difference between them? Any answer would be so helpful. Thanks in Advance!

Answer 1

The + means that this identifier will be added to the resources. You declare that it exists somewhere and use it at the same time. Not sure if that really applies to strings but I guess it does. It would explain why you get no error.

And I doubt it is good to use a + to make it work. You could end up with a string declaration with no actual string content which will likely result in a crash.

If it is not working without the + try building / refreshing your project. If the string is defined in one of your xml files you should be able to use @string

Answer 2

@String是从字符串文件中检索到的值。

Answer 3

hey guys use the newest elipse, there's a bit of difference between it and the old ones. I guess zapl's answer is correct, the + sign is to add it to the references. Cheers guys!