Member Avatar for shanki himanshu

what is the use of string.xml file in android?
is it like defining global strings if we have multiple .java files in android application? correct me if i am wrong

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  • Latest Post Latest Post by peter_budo

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As asked and as pointed out, the strings.xml file is the app's canonical place for user-visible text. It lives under res/values/strings.xml and stores named string resources that the build system compiles into the R class. These resources are convenient for maintenance and translation, but they are not Java "global variables" in the normal sense — they are resource IDs that must be resolved via a Context at runtime.

Example patterns:

<!-- res/values/strings.xml -->
<resources>
  <string name="app_name">MyApp</string>
  <string name="welcome">Welcome, %1$s!</string>
  <plurals name="unread_count">
    <item quantity="one">%d message</item>
    <item quantity="other">%d messages</item>
  </plurals>
</resources>

Usage in XML and code:

android:text="@string/app_name"

String s = getString(R.string.welcome, userName);
textView.setText(R.string.unread_count); // setText has an overload that accepts a resource id

Practical tips and cautions: prefer numbered placeholders (%1$s) so translators can reorder text; use <plurals> for counts; mark non-translatable UI-only strings with translatable="false"; do not store secrets or runtime data in resource files. If a string change does not appear, perform a Clean/Rebuild or check resource name rules (lowercase, underscores). For official details and localization workflow, see the Android string resources guide: Android string resources.

Member Avatar for peter_budo
  • Reduce duplication and therefore many places to change if same string declared in multiple places
  • Easy way of managing and sharing resource that has to be translated if you need internatioanlization for application
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