ArrayAdapter 的综合运用

不多说，先上图。

1.DataModel.java

这个主要是用来存放数据模型的类。即在列表项中存在不同的view的时候，可以这样使用。

package com.sunplusedu.customadapger; public class DataModel { private String name; private int drawableId; private int type; public DataModel(String name, int drawableId, int type) { this.name = name; this.drawableId = drawableId; this.type = type; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getDrawableId() { return drawableId; } public void setDrawableId(int drawableId) { this.drawableId = drawableId; } public int getType(){ return type; } }

2.MyAdapter.java

import java.util.List; import android.content.Context; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.Button; import android.widget.CheckBox; import android.widget.ImageView; import android.widget.TextView; public class MyAdapter extends BaseAdapter{ public final static int TYPE_BUTTON = 0; public final static int TYPE_CHECKBOX = 1; private final static int TYPE_NUM = 2; private final List<DataModel> mList; private LayoutInflater mInflater; public MyAdapter(Context context, List<DataModel> list) { this.mInflater = LayoutInflater.from(context); this.mList = list; } @Override public int getCount() { // TODO Auto-generated method stub return mList.size(); } @Override public int getItemViewType(int position) { // TODO Auto-generated method stub DataModel d = mList.get(position); Log.i("getItemViewType()","OK"); return d.getType(); } @Override public int getViewTypeCount() { // TODO Auto-generated method stub return TYPE_NUM; } //用来保存view的引用 final class ViewHolder{ public TextView textView; public ImageView imageView; public Button button; public CheckBox checkBox; } @Override public View getView(int position, View convertView, ViewGroup parent) { DataModel model= mList.get(position); Log.d("MyAdataer", "in get view positon = " + position); ViewHolder holder = null; if (convertView == null) { Log.d("MyAdataer", "a new View"); holder=new ViewHolder(); switch(model.getType()){ case MyAdapter.TYPE_BUTTON: convertView = mInflater.inflate(R.layout.button_item, null); holder.imageView = (ImageView)convertView.findViewById(R.id.imageView); holder.textView = (TextView)convertView.findViewById(R.id.textView); holder.button = (Button)convertView.findViewById(R.id.button); //可以在此添加事件处理等 break; case MyAdapter.TYPE_CHECKBOX: convertView = mInflater.inflate(R.layout.check_item, null); holder.imageView = (ImageView)convertView.findViewById(R.id.imageView); holder.textView = (TextView)convertView.findViewById(R.id.textView); holder.checkBox = (CheckBox)convertView.findViewById(R.id.checkBox); break; } convertView.setTag(holder); } //刷新数据 switch(model.getType()){ case MyAdapter.TYPE_BUTTON: holder = (ViewHolder) convertView.getTag(); holder.imageView.setBackgroundResource(model.getDrawableId()); holder.textView.setText(model.getName()); break; case MyAdapter.TYPE_CHECKBOX: holder = (ViewHolder) convertView.getTag(); holder.imageView.setBackgroundResource(model.getDrawableId()); holder.textView.setText(model.getName()); break; } return convertView; } @Override public Object getItem(int position) { // TODO Auto-generated method stub return null; } @Override public long getItemId(int position) { // TODO Auto-generated method stub return 0; } } 

3.CustomAdapterActivity.java

package com.sunplusedu.customadapger; import java.util.ArrayList; import java.util.List; import android.app.ListActivity; import android.os.Bundle; public class CustomAdapterActivity extends ListActivity { /** Called when the activity is first created. */ private List<DataModel> mData; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mData = getData(); MyAdapter adapter = new MyAdapter(this, mData); setListAdapter(adapter); } private List<DataModel> getData() { List<DataModel> list = new ArrayList<DataModel>(); list.add(new DataModel("Click ", R.drawable.head1, MyAdapter.TYPE_BUTTON)); list.add(new DataModel("Check", R.drawable.head1, MyAdapter.TYPE_CHECKBOX)); list.add(new DataModel("AAA ", R.drawable.head2, MyAdapter.TYPE_CHECKBOX)); list.add(new DataModel("BBB ", R.drawable.head2, MyAdapter.TYPE_BUTTON)); list.add(new DataModel("CCC ", R.drawable.head2, MyAdapter.TYPE_BUTTON)); list.add(new DataModel("DDD ", R.drawable.head2, MyAdapter.TYPE_CHECKBOX)); list.add(new DataModel("EEE ", R.drawable.head1, MyAdapter.TYPE_CHECKBOX)); list.add(new DataModel("FFF ", R.drawable.head1, MyAdapter.TYPE_BUTTON)); list.add(new DataModel("GGG ", R.drawable.head1, MyAdapter.TYPE_CHECKBOX)); list.add(new DataModel("HHH ", R.drawable.head3, MyAdapter.TYPE_CHECKBOX)); list.add(new DataModel("1111 ", R.drawable.head1, MyAdapter.TYPE_BUTTON)); list.add(new DataModel("2222 ", R.drawable.head3, MyAdapter.TYPE_CHECKBOX)); list.add(new DataModel("3333", R.drawable.head3, MyAdapter.TYPE_CHECKBOX)); return list; } }