如何使用简单的适配器和列表视图创建自己的自定义行布局

Question

我需要帮助创建一个自定义列表视图,允许我每行有2个字符串/ textviews.我一直在研究很多,但我似乎无法理解如何做到这一点.任何示例代码和帮助将不胜感激.我知道如何使用simple_list_item_1,但不是我自己的布局.谢谢. 我的(仍然无法运作)代码

 package com.painLogger;
 //ALL IMPORTS

 public class PainLoggerActivity extends Activity implements OnClickListener,
 OnKeyListener {

     /** Called when the activity is first created. */
     EditText txtItem;
     EditText txtItem2;
     Button btnAdd;
     ListView listItems;
     ArrayAdapter < String > aa;
     List < HashMap < String, String >> painItems = new ArrayList < HashMap < String, String >> ();
     int[] to;
     String[] from;
     SimpleAdapter adapter;


     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.main);

         txtItem = (EditText) findViewById(R.id.txtItem);
         txtItem2 = (EditText) findViewById(R.id.txtItem2);

         btnAdd = (Button) findViewById(R.id.btnAdd);
         listItems = (ListView) findViewById(R.id.listItems);

         btnAdd.setOnClickListener(this);

         from = new String[] {
             "row_1", "row_2"
         };
         to = new int[] {
             R.id.row1, R.id.row2
         };

         SimpleAdapter adapter = new SimpleAdapter(this, painItems, R.layout.mylistlayout,
             from, to);
         listItems.setAdapter(adapter);
     }

     private void addItem() {
         HashMap < String, String > map = new HashMap < String, String > ();

         map.put("row_1", txtItem.getText().toString());
         map.put("row_2", txtItem2.getText().toString());
         painItems.add(map);
         adapter.notifyDataSetChanged();
     }

     @Override
     public void onClick(View v) {
         if (v == this.btnAdd) {
             addItem();
         }
     }

     @Override
     public boolean onKey(View v, int keyCode, KeyEvent event) {

         if (event.getAction() == KeyEvent.ACTION_DOWN && keyCode ==
             KeyEvent.KEYCODE_DPAD_CENTER) {             this.addItem();

         }
         return false;
     }
 }

Answer 1

参考此问题,请使用此代码.
编辑:添加了hashmap定义

String[] from = new String[] {"row_1", "row_2"};
int[] to = new int[] { R.id.row1, R.id.row2};
List<HashMap<String, String>> fillMaps = new ArrayList<HashMap<String, String>>();

for (int j = 0; j < sourceObj.length(); j++) {
        HashMap<String, String> map = new HashMap<String, String>();
        map.put("row_1", sourceObj.data1);
        map.put("row_2", sourceObj.data2);
        fillMaps.add(map);
}

SimpleAdapter adapter = new SimpleAdapter(context, fillMaps, R.layout.yourlayoutname, from, to);
mListView.setAdapter(adapter);

• 制作您的列表视图,这可能是LinearLayout几个TextViews
• 使用R.layout.yourlayoutname此行引用此列表布局SimpleAdapter adapter = new SimpleAdapter(context, fillMaps, R.layout.result, from, to);
• 传入您的数据

这种方法的好处是它避免了你必须创建任何新对象,并且它不涉及太多代码.