我需要帮助创建一个自定义listview,它允许我每行有2个strings/textview。我一直在研究,但我似乎不明白怎么做。任何示例代码和帮助将不胜感激。我知道如何使用简单的列表项,但不是我自己的布局。
谢谢您。
我的(仍然不起作用的)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;
}
}
最佳答案
关于this问题,请使用此代码。
编辑:添加了哈希映射定义
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);
创建列表视图,其中可以是一个
LinearLayout
和几个TextViews
使用此行中的
R.layout.yourlayoutname
引用此列表布局传入数据
这种方法的好处是它避免了创建任何新对象,而且不涉及太多代码。