android - getSharedPreferences using R.something? -

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with these lines:

string app_name = "@string/app_name"; sharedpreferences sharedpreferences = getsharedpreferences(app_name, 0);

i illegalargumentexception:

file @string/app_name.xml contains path separator

if this:

sharedpreferences sharedpreferences = getsharedpreferences("myappname", 0);

it works fine how use without hard-coding app name? can't use r.string.app_name because int.

you can this

string app_name = getresources().getstring(r.string.app_name); sharedpreferences sharedpreferences = getsharedpreferences(app_name, 0);

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