use resourse string value in StringDef/TypeDef android

Question

I have a stringDef/ TypeDef class as follows

public class Codes {
      public static final String Code_1 = "Code1";
      public static final String Code_2 = "Code2";
      public static final String Code_3 = "Code3";


      @Retention(RetentionPolicy.SOURCE) @StringDef({
            Code_1, Code_2, Code_3 })

      public @interface CodesMessageDef {
      }
}

I would like to set values of Code_1,2,3 from R.String.code_1 rather than manually entering.

Is there any way to achieve this usecase.

Thanks in advance.........

Community · Accepted Answer · 2017-05-23 11:47:12Z

1

You can read this answer for how to get application context from a static method. Note that using this to get the context is not a memory leak because you are using an application context.

Now you can do:

public static final String Code_1 = MyApplication.getAppContext().getString(R.id.code1);
public static final String Code_2 = MyApplication.getAppContext().getString(R.id.code2);
public static final String Code_3 = MyApplication.getAppContext().getString(R.id.code3);

I guess it should work.

edited May 23, 2017 at 11:47

CommunityBot

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answered May 3, 2017 at 21:36

Nicolas

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4 Comments

0x52616A657368 Over a year ago

Actually i'm able to get context but the issue is at @Retention(RetentionPolicy.SOURCE) @StringDef({ Code_1, Code_2, Code_3 }) It only accepts constants, but by using resouces the value cant be constant, Is there any possibility to overcome this??

Nicolas Over a year ago

Just read a bit about that and turns out you can't do that sorry. But why did you want to do it maybe there's another solution?

0x52616A657368 Over a year ago

I have an text field which only accepts one among these 5 strings provided. Initially i have used ENUM but trying to avoid ENUMS.

0x52616A657368 Over a year ago

I tried it, but in case of multi language support it wont be applicable

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