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Reference string arrays in android strings.xml

I would like to reference a string array from another string array in the strings.xml file. If I try to read a string array (called "plants") in my activity, the value of each element is null.

Is it possible to get these values?

Here is the strings.xml part:

<string name="Orlaya_grandiflora_1">Orlaya grandiflora</string>
<string name="Orlaya_grandiflora_2">Large-Flowered Orlaya</string>
<string name="Orlaya_grandiflora_3">Apiaceae</string>
<string-array name="Orlaya_grandiflora">
    <item>@string/Orlaya_grandiflora_1</item>
    <item>@string/Orlaya_grandiflora_2</item>
    <item>@string/Orlaya_grandiflora_3</item>
</string-array>
<string-array name="plants">
    <item>@array/Ginkgo_biloba</item>
    <item>@array/Capsicum_frutescens</item>
    <item>@array/Viscum_album</item>
    <item>@array/Orlaya_grandiflora</item>
</string-array>

I am trying to access values ​​like this:

String[] plantArray = resources.getStringArray(R.array.plants);

for (String plant : plantArray) {
        System.out.println("--> " + plant);
    }

The plant values ​​in each case are "null"

Does anyone know how to access values?

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3 answers

You should do the following:

  //obtain the array that refrences others array
  TypedArray plantArray=getResources().obtainTypedArray(R.array.plants);
  //obtain the referenced arrays
  CharSequence[] ginkoArray=plantArray.getTextArray(0);
  //...
  CharSequence[] orlayaArray=plantArray.getTextArray(3);
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Direct example: Android - String Resources

enter image description here

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public class Test extends ListActivity {
  String[] presidents;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    ListView lstView = getListView();
    // lstView.setChoiceMode(0); //CHOICE_MODE_NONE
    // lstView.setChoiceMode(1); //CHOICE_MODE_SINGLE
    lstView.setChoiceMode(2); // CHOICE_MODE_MULTIPLE
    lstView.setTextFilterEnabled(true);

    presidents = getResources().getStringArray(R.array.presidents_array);

    setListAdapter(new ArrayAdapter<String>(this,
        android.R.layout.simple_list_item_checked, presidents));
  }

  public void onListItemClick(ListView parent, View v, int position, long id) {
    parent.setItemChecked(position, parent.isItemChecked(position));

    Toast.makeText(this, "You have selected " + presidents[position],
        Toast.LENGTH_SHORT).show();
  }
};

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >



</LinearLayout>

strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="hello">Hello World, MainActivity!</string>
    <string name="app_name">BasicViews5</string>
    <string-array name="presidents_array">
        <item>Dwight D. Eisenhower</item>
        <item>John F. Kennedy</item>
        <item>Lyndon B. Johnson</item>
        <item>Richard Nixon</item>
        <item>Gerald Ford</item>
        <item>Jimmy Carter</item>
        <item>Ronald Reagan</item>
        <item>George H. W. Bush</item>
        <item>Bill Clinton</item>
        <item>George W. Bush</item>
        <item>Barack Obama</item>
    </string-array>
</resources>
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