无法为 Listview 添加标题栏

Question

对我的屏幕的要求就像在顶部中间有一个标题栏，然后是列表视图，当我尝试这样做时，我无法像我在每个列表项中都有状态名称那样做。我只希望在顶部和一次。它的屏幕截图是

 <?xml version="1.0" encoding="utf-8"?>
    <TableLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="fill_parent"
     android:layout_height="fill_parent"
        >
      <TableRow>
      <TextView 
         android:layout_height="wrap_content"
         android:layout_width="fill_parent"
         android:background="#000000"
         android:text="Select State"
                
      ></TextView>
      </TableRow>
      <TableRow> 
      <TextView  android:layout_width="wrap_content"
          android:layout_height="fill_parent"
          
           android:id="@+id/label"
          android:textSize="30px"></TextView>
    </TableRow>
    </TableLayout>

我尝试了很多方法这是我现在的布局

我的java代码是

import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

public class new21 extends ListActivity {
    /** Called when the activity is first created. */
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        // Create an array of Strings, that will be put to our ListActivity
        String[] names = new String[] { "Andhra Pradesh", "Kerala","Tamilnadu","Karnataka" };
        // Use your own layout and point the adapter to the UI elements which
        // contains the label
        this.setListAdapter(new ArrayAdapter<String>(this, R.layout.new21,
                R.id.label, names));
    }

    @Override
    
    protected void onListItemClick(ListView l, View v, int position, long id) {
        super.onListItemClick(l, v, position, id);
        // Get the item that was clicked
        Object o = this.getListAdapter().getItem(position);
        String keyword = o.toString();
        if(keyword.equals("Andhra Pradesh"))
        {
            Intent ima45=new Intent(new21.this,new31.class);
            startActivity(ima45);
    
        }
        Toast.makeText(this, "You selected: " + keyword, Toast.LENGTH_LONG)
                .show();
        
    }

}

谁能帮帮我。

Answer 1

你可以像这样将Header添加到ListView，

View header = getLayoutInflater().inflate(R.layout.header, null);
ListView listView = getListView();
listView.addHeaderView(header);
setListAdapter(new ArrayAdapter<String>(this,
                android.R.layout.simple_list_item_single_choice, names));

其中R.layout.header 是包含TextView 和文本"Select State" 的布局

更新：

public class ListViewProblemActivity extends ListActivity {

    ListView listView;

    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        // Create an array of Strings, that will be put to our ListActivity
        String[] names = new String[] { "Andhra Pradesh", "Kerala","Tamilnadu","Karnataka" };
        // Use your own layout and point the adapter to the UI elements which
        // contains the label

        TextView tv = new TextView(getApplicationContext());
        tv.setText("Select State");

        listView = getListView();
        listView.addHeaderView(tv);
        this.setListAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_expandable_list_item_1,names));
    }

    @Override

    protected void onListItemClick(ListView l, View v, int position, long id) {
        super.onListItemClick(l, v, position, id);
        // Get the item that was clicked

        if(position != 0){
            System.out.println(position - 1);
            Object o = this.getListAdapter().getItem(position - 1);
            String keyword = o.toString();
            Toast.makeText(this, "You selected: " + keyword, Toast.LENGTH_LONG)
                    .show();
        }
    }
}

Answer 2

在您的活动中仅使用ListView，删除那里的标题。然后使用ListView.addHeaderViwe(); 将标题添加到Listview。此标题显示在第一项之前。 有关详细信息，请参阅documentaton。

Answer 3

你最好使用 ListView.addHeaderViwe();

但不要忘记删除你所做的“扩展 ListActivity”，不需要，

并从“new21.xml”中删除标题 在您的 xml 中，只需修复您想要在列表的每一行中显示的文本项，

Answer 4

你完全错了。只需要一个带有一个 TextView（用于标题栏）和一个 ListView（用于显示列表视图）的 LinearLayout，仅此 2 个视图。

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

     <TextView 
         android:layout_height="wrap_content"
         android:layout_width="fill_parent"
         android:background="#000000"
         android:text="Select State">
      </TextView>

      <ListView 
         android:id="@+id/lviewState"
         android:layout_height="wrap_content"
         android:layout_width="match_parent">
      </ListView>

</LinearLayout>

现在，按照您的代码显示 ListView。