Android How do I get string from resources using its name

Question

I would like to have 2 languages for the UI and separate string values for them in my resource file res values strings xml       lt string name  tab Books en  gt Books lt  string gt   lt string name  tab Quotes en  gt Quotes lt  string gt   lt string name  tab Questions en  gt Questions lt  string gt   lt string name  tab Notes en  gt Notes lt  string gt   lt string name  tab Bookmarks en  gt Bookmarks lt  string gt    lt string name  tab Books ru  gt       lt  string gt   lt string name  tab Quotes ru  gt        lt  string gt   lt string name  tab Questions ru  gt         lt  string gt   lt string name  tab Notes ru  gt         lt  string gt   lt string name  tab Bookmarks ru  gt          lt  string gt      Now I need to retrieve these values dynamically in my app   spec setContent R id tabPage1   String pack   getPackageName    String id    tab Books     Central lang  int i   Central Res getIdentifier id   string   pack   String str   Central Res getString i     My problem is that i   0   Why does not it work in my case

User · Answer

Best Approach App getRes   getString R string some id  Will work Everywhere  Utils  Models also   I have read all the answers  all answers can make your work done   You can use getString R string some string id  in both Activity or Fragment  You can use Context getString R string some string id  where you don t have direct access to getString   method  Like Dialog   Problem When you don t have Context access  like a method in your Util class  Assume below method without Context  public void someMethod                   can t use getResource   or getString   without Context     Now you will pass Context as a parameter in this method and use getString    public void someMethod Context context               context getString R string some id      What i do is public void someMethod                App getAppResources   getString R string some id     What  It is very simple to use anywhere in your app  So here is a solution by which you can access resources from anywhere like Util class   import android app Application  import android content res Resources   public class App extends Application       private static Resources resources        Override     public void onCreate             super onCreate             resources   getResources               public static Resources getAppResources             return resources            Add name field to your manifest xml  lt application tag   lt application         android name  quot  App quot                       gt                   lt  application gt   Now you are good to go  Use App getAppResources   getString R string some id  anywhere in app

User · Answer

If you don t have an Activity reference  you can use your context in this way   getContext   getString R string your string name

User · Answer

String myString   getString R string mystring    easy way

User · Answer

In case you are using Kotlin  you can define an extension function as follows  fun Context getStringResourceByName stringName  String   String        val resId   resources getIdentifier stringName   quot string quot   packageName      return getString resId     And then simply use it  For example  in a Puzzles app I set the Activity title according to the image file name  val stringName    quot   folderName    assetName substringBefore  quot   quot    quot  title   getStringResourceByName stringName   In this example I am reading string resources based on dynamic names

User · Answer

A simple way to getting resource string from string into a TextView  Here resourceName is the name of resource   int resID   getResources   getIdentifier resourceName   string   getPackageName     textview setText resID

User · Answer

You can try this in an Activity   getResources   getString R string your string name     In other situations like fragments     use  getContext   getResources   getString R string your string name

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Verify if your packageName is correct  You have to refer for the root package of your Android application  private String getStringResourceByName String aString          String packageName   getPackageName          int resId   getResources   getIdentifier aString   quot string quot   packageName         return getString resId

User · Answer

The link you are referring to seems to work with strings generated at runtime  The strings from strings xml are not created at runtime  You can get them via   String mystring   getResources   getString R string mystring     getResources   is a method of the Context class  If you are inside a Activity or a Service  which extend Context  you can use it like in this snippet   Also note that the whole language dependency can be taken care of by the android framework   Simply create different folders for each language  If english is your default language  just put the english strings into res values strings xml  Then create a new folder values-ru and put the russian strings with identical names into res values-ru strings xml  From this point on android selects the correct one depending on the device locale for you  either when you call getString   or when referencing strings in XML via  string mystring  The ones from res values strings xml are the fallback ones  if you don t have a folder covering the users locale  this one will be used as default values   See Localization and Providing Resources for more information

User · Answer

If you wannt get it inside an activity or fragmnet  then   getContext   getResources   getString R string string name     If you want to get it from a class outside of activity or fragment where you don t have the activity context then use application context   getApplicationContext   getResources   getString R string string name

User · Answer

Easier way is to use the getString   function within the activity   String myString   getString R string mystring     Reference  http   developer android com guide topics resources string-resource html  I think this feature is added in a recent Android version  anyone who knows the history can comment on this

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To safe  you should add  mContext getResources   getString R string your string    mContext can be  context in onAttach   of Fragment or this of Activity

User · Answer

R string  lt string name gt    Use that line directly in your java file  Keep it simple

User · Answer

I would add something to the solution of leonvian  so if by any chance the string is not found among the resources  return value 0  that is not a valid resource code   the function might return something    private String getStringResourceByName String aString        String packageName   getPackageName        int resId   getResources                getIdentifier aString   string   packageName       if  resId    0            return aString        else           return getString resId

User · Answer

getResources   works only when you re in Activity or Fragment class   to get access to strings resource everywhere   use  Resources getSystem   getString android R string somecommonstuff

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There is also a set of predefined Android strings such as  Ok    Cancel  and many others - so you don t have to declare all  They re available simply by   getString android R string ok     In this case   Ok  string   BTW there are also other Android resources available like for example icons images etc

User · Answer

getResources   getString getResources   getIdentifier  propertyName    string   getPackageName

User · Answer

Not from activities only       public static String getStringByIdName Context context  String idName            Resources res   context getResources            return res getString res getIdentifier idName   string   context getPackageName

[android] Android: How do I get string from resources using its name?

Best Approach

Will work Everywhere (Utils, Models also).

Problem

Examples related to android

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