java - 如何使用资源 id (R.string.) 将 ArrayAdapter 设置为字符串数组

Question

1. 我试图将资源中的返回值转换为字符串，但它不起作用。

2. 这是我的代码：

    import androidx.appcompat.app.AppCompatActivity;
    import android.os.Bundle;
    import android.widget.ArrayAdapter;
    import android.widget.ListView;
   
    public class MainActivity extends AppCompatActivity {
   
        String[] storiesTitles = {(String) getText(R.string.first_story_title), (String) getText(R.string.second_story_title), (String) getText(R.string.third_story_title)};
   
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
   
            ArrayAdapter adapter = new ArrayAdapter(MainActivity.this, android.R.layout.simple_expandable_list_item_1, storiesTitles);
   
            ListView list = findViewById(R.id.lv_stories);
            list.setAdapter(adapter);
   
        }
    }
   

标签： javaandroidarrayslistview

Answer 1

在 onCreate 函数中调用字符串数组

    public class MainActivity extends AppCompatActivity {
    
    
         @Override
         protected void onCreate(Bundle savedInstanceState) {
             super.onCreate(savedInstanceState);
             setContentView(R.layout.activity_main);
   
 String[] storiesTitles = {(String) getText(R.string.first_story_title), (String) getText(R.string.second_story_title), (String) getText(R.string.third_story_title)};

             ArrayAdapter adapter = new ArrayAdapter(MainActivity.this, android.R.layout.simple_expandable_list_item_1, storiesTitles);
    
             ListView list = findViewById(R.id.lv_stories);
             list.setAdapter(adapter);
    
         }
     }