Question

Hy!

I have in my /values/strings.xml:

<resources>
    <string name="error418">Bad Request</string>
    <string name="error404">Not Found</string>
    ......
</resources>

the same in /values-de/strings.xml

Now i want to get the error messages by the string “error418”.

I only found context.getString(int …).

How to get the error message by code?

Answer 1

If you want to get resource id dynamically, according to error code for example, you need to use getIdentifier()

e.g.

String err_code = ...;
int strId = context.getResources().getIdentifier("error" + err_code, "string", "packagename");
if (strId != 0)
    Toast.maketext(context, context.getString(strId), Toast.LENGTH_LONG).show();
else 
    Toast.maketext(context, "Unknown error", Toast.LENGTH_LONG).show();