android listview的多列模版实例代码

android listview多列模版
在listview中，可以做出多列模版的效果，关键还是在listview的模版本，比如如下：

<LinearLayoutandroid:id="@+id/relativeLayout1"android:layout_height="fill_parent"android:layout_width="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android"><TextView android:id="@+id/FirstText" android:layout_width="0dp" android:layout_height="wrap_content" android:text="First" android:layout_weight="1"> </TextView><TextView android:id="@+id/SecondText" android:layout_width="0dp" android:layout_height="wrap_content" android:text="Second" android:layout_weight="2"> </TextView><TextView android:id="@+id/ThirdText" android:layout_width="0dp" android:layout_height="wrap_content" android:text="Third" android:layout_weight="1"> </TextView><TextView android:id="@+id/FourthText" android:layout_width="0dp" android:layout_height="wrap_content" android:text="Fourth" android:layout_weight="1"> </TextView> </LinearLayout>

listviewadapter.java:

public class listviewAdapter extends BaseAdapter { public ArrayList<HashMap<String,String>> list; Activity activity;public listviewAdapter（Activity activity, ArrayList<HashMap<String,String>> list） { super（）; this.activity = activity; this.list = list; } public int getCount（） { // TODO Auto-generated method stub return list.size（）; } public Object getItem（int position） { // TODO Auto-generated method stub return list.get（position）; } public long getItemId（int position） { // TODO Auto-generated method stub return 0; }private class ViewHolder { TextView txtFirst; TextView txtSecond; TextView txtThird; TextView txtFourth;} public View getView（int position, View convertView, ViewGroup parent） { // TODO Auto-generated method stub// TODO Auto-generated method stub ViewHolder holder; LayoutInflater inflater = activity.getLayoutInflater（）;if （convertView == null） { convertView = inflater.inflate（R.layout.listview_row, null）; holder = new ViewHolder（）; holder.txtFirst = （TextView） convertView.findViewById（R.id.FirstText）; holder.txtSecond = （TextView） convertView.findViewById（R.id.SecondText）; holder.txtThird = （TextView） convertView.findViewById（R.id.ThirdText）; holder.txtFourth = （TextView） convertView.findViewById（R.id.FourthText）; convertView.setTag（holder）; } else { holder = （ViewHolder） convertView.getTag（）; }HashMap<String, String> map = list.get（position）; holder.txtFirst.setText（map.get（FIRST_COLUMN））; holder.txtSecond.setText（map.get（SECOND_COLUMN））; holder.txtThird.setText（map.get（THIRD_COLUMN））; holder.txtFourth.setText（map.get（FOURTH_COLUMN））;return convertView; }

主程序：

public class MultiColumnActivity extends Activity{ private ArrayList<HashMap<String,String>> list;public void onCreate（Bundle savedInstanceState）{ super.onCreate（savedInstanceState）; setContentView（R.layout.main）;ListView lview = （ListView） findViewById（R.id.listview）; populateList（）; listviewAdapter adapter = new listviewAdapter（this, list）; lview.setAdapter（adapter）; }private void populateList（） {list = new ArrayList<HashMap<String,String>>（）;HashMap<String,String> temp = new HashMap<String,String>（）; temp.put（FIRST_COLUMN,"Colored Notebooks"）; temp.put（SECOND_COLUMN, "By NavNeet"）; temp.put（THIRD_COLUMN, "Rs. 200"）; temp.put（FOURTH_COLUMN, "Per Unit"）; list.add（temp）;HashMap<String,String> temp1 = new HashMap<String,String>（）; temp1.put（FIRST_COLUMN,"Diaries"）; temp1.put（SECOND_COLUMN, "By Amee Products"）; temp1.put（THIRD_COLUMN, "Rs. 400"）; temp1.put（FOURTH_COLUMN, "Per Unit"）; list.add（temp1）;HashMap<String,String> temp2 = new HashMap<String,String>（）; temp2.put（FIRST_COLUMN,"Note Books and Stationery"）; temp2.put（SECOND_COLUMN, "By National Products"）; temp2.put（THIRD_COLUMN, "Rs. 600"）; temp2.put（FOURTH_COLUMN, "Per Unit"）; list.add（temp2）;HashMap<String,String> temp3 = new HashMap<String,String>（）; temp3.put（FIRST_COLUMN,"Corporate Diaries"）; temp3.put（SECOND_COLUMN, "By Devarsh Prakashan"）; temp3.put（THIRD_COLUMN, "Rs. 800"）; temp3.put（FOURTH_COLUMN, "Per Unit"）; list.add（temp3）;HashMap<String,String> temp4 = new HashMap<String,String>（）; temp4.put（FIRST_COLUMN,"Writing Pad"）; temp4.put（SECOND_COLUMN, "By TechnoTalaktive Pvt. Ltd."）; temp4.put（THIRD_COLUMN, "Rs. 100"）; temp4.put（FOURTH_COLUMN, "Per Unit"）; list.add（temp4）; } }

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