Resource Not Found Exception in class without context or activity

Question

public class EmergencyNumbersGenerator {

    private static ArrayList<EmergencyNumberFeatures> features;

    public static ArrayList<EmergencyNumberFeatures> generateEmergencyNumber()
    {

        features = new ArrayList<>();

        EmergencyNumberFeatures em = new EmergencyNumberFeatures(
                Resources.getSystem().getString(R.string.policeControl),
                Resources.getSystem().getString(R.string.policeControlNumber)
        );
    }

}

This happens to be my code and this class EmergencyNumberGenerator has no Context whatsoever. So, I looked in SO for solution to get string from strings.xml and found that I can use

Resources.getSystem().getString(R.string.{stringID})

But, I am getting error where it says, Resource is not found.

 android.content.res.Resources$NotFoundException: String resource ID #0x7f0d0085
    at android.content.res.Resources.getText(Resources.java:348)
    at android.content.res.Resources.getString(Resources.java:441)
    at com.utilnepal.MobileHelp.data.EmergencyNumbersGenerator.generateEmergencyNumber(EmergencyNumbersGenerator.java:20)
    at com.utilnepal.MobileHelp.ActivitiesFragment.EmergencyFragment.onCreateView(EmergencyFragment.java:43)

Any help regarding this issue?

Can you pass context in this class ?? and you can use it like that context.getResources().getString(); — Abhishek Sharma, Nov 03 '18 at 09:50
I could. But I preferred not to. I am looking for way around! — JustABeginner, Nov 03 '18 at 09:52

score 2 · Answer 1 · answered Nov 03 '18 at 10:12

You need to pass context in your static method. Only using context or Activity you can get String from your string file.

public static ArrayList<EmergencyNumberFeatures> generateEmergencyNumber(Context mContext)
{

    features = new ArrayList<>();

    EmergencyNumberFeatures em = new EmergencyNumberFeatures(
            mContext.getString(R.string.policeControl),
           mContext.getString(R.string.policeControlNumber)
    );
}

score 1 · Answer 2 · answered Nov 03 '18 at 09:57

1

So, Resources.getSystem() you can use everywhere in yours code.

But with that you can get only System Resources. String, that you defined in strings.xml is not system resource.

Check this link system resources and non-system

answered Nov 03 '18 at 09:57

Eugene Korotkov

135
11

Resource Not Found Exception in class without context or activity

2 Answers2