6.7

今日收获：

MutiLayoutAdapter.java：

/**
* Created by Jay on 2015/9/23 0023.
*/
public class MutiLayoutAdapter extends BaseAdapter{

//定义两个类别标志
private static final int TYPE_BOOK = 0;
private static final int TYPE_APP = 1;
private Context mContext;
private ArrayList<Object> mData = null;

public MutiLayoutAdapter(Context mContext,ArrayList<Object> mData) {
this.mContext = mContext;
this.mData = mData;
}

@Override
public int getCount() {
return mData.size();
}

@Override
public Object getItem(int position) {
return mData.get(position);
}

@Override
public long getItemId(int position) {
return position;
}

//多布局的核心，通过这个判断类别
@Override
public int getItemViewType(int position) {
if (mData.get(position) instanceof App) {
return TYPE_APP;
} else if (mData.get(position) instanceof Book) {
return TYPE_BOOK;
} else {
return super.getItemViewType(position);
}
}

//类别数目
@Override
public int getViewTypeCount() {
return 2;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
int type = getItemViewType(position);
ViewHolder1 holder1 = null;
ViewHolder2 holder2 = null;
if(convertView == null){
switch (type){
case TYPE_APP:
holder1 = new ViewHolder1();
convertView = LayoutInflater.from(mContext).inflate(R.layout.item_one, parent, false);
holder1.img_icon = (ImageView) convertView.findViewById(R.id.img_icon);
holder1.txt_aname = (TextView) convertView.findViewById(R.id.txt_aname);
convertView.setTag(R.id.Tag_APP,holder1);
break;
case TYPE_BOOK:
holder2 = new ViewHolder2();
convertView = LayoutInflater.from(mContext).inflate(R.layout.item_two, parent, false);
holder2.txt_bname = (TextView) convertView.findViewById(R.id.txt_bname);
holder2.txt_bauthor = (TextView) convertView.findViewById(R.id.txt_bauthor);
convertView.setTag(R.id.Tag_Book,holder2);
break;
}
}else{
switch (type){
case TYPE_APP:
holder1 = (ViewHolder1) convertView.getTag(R.id.Tag_APP);
break;
case TYPE_BOOK:
holder2 = (ViewHolder2) convertView.getTag(R.id.Tag_Book);
break;
}
}

Object obj = mData.get(position);
//设置下控件的值
switch (type){
case TYPE_APP:
App app = (App) obj;
if(app != null){
holder1.img_icon.setImageResource(app.getaIcon());
holder1.txt_aname.setText(app.getaName());
}
break;
case TYPE_BOOK:
Book book = (Book) obj;
if(book != null){
holder2.txt_bname.setText(book.getbName());
holder2.txt_bauthor.setText(book.getbAuthor());
}
break;
}
return convertView;
}

//两个不同的ViewHolder
private static class ViewHolder1{
ImageView img_icon;
TextView txt_aname;
}

private static class ViewHolder2{
TextView txt_bname;
TextView txt_bauthor;
}
}