在android listview中，我如何显示类型不同的item，
下面是重写的BaseAdapter
class MyAdapter extends BaseAdapter{
Context mContext;
//LinearLayout linearLayout = null;
LayoutInflater inflater;
//TextView tex;
final int TYPE_SWITCH = 0;
final int TYPE_SEEKBAR = 1;
final int TYPE_BUTTON = 2;
final int TYPE_CHECKBOX = 3;
public MyAdapter(Context context) {
mContext = context;
inflater = LayoutInflater.from(mContext);
//inflater =(LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return mData.size();}
//每个convert view都会调用此方法，获得当前所需要的view样式
@Override
public int getItemViewType(int position) {
// TODO Auto-generated method stub
int p = position%4;
if(p == 0)
return TYPE_SWITCH;
else if(p == 1)
return TYPE_SEEKBAR;
else if(p == 4)
return TYPE_SEEKBAR_RGB;
else if(p == 2)
return TYPE_BUTTON;
else if(p == 3)
return TYPE_CHECKBOX;
else
return TYPE_SEEKBAR;
}
@Override
public int getViewTypeCount() {
// TODO Auto-generated method stub
return 1;
}
@Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return mData.get(arg0);
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
viewHolder_switch holder_switch = null;
viewHolder_seekbar holder_seekbar = null;
viewHolder_button holder_button = null;
int type = getItemViewType(position);
if (convertView == null)
{
Log.e("convertView = ", " NULL");
switch(type)
{
case TYPE_SWITCH:
holder_switch = new viewHolder_switch();
convertView = inflater.inflate(R.layout.listview_switch_row, parent, false);
//
holder_switch.img = (ImageView)convertView.findViewById(R.id.img_sw);
holder_switch.title = (TextView)convertView.findViewById(R.id.title_sw);
holder_switch.info = (TextView)convertView.findViewById(R.id.info_sw);
Log.e("convertView = ", "NULL TYPE_SWITCH");
//Map<String, Object> myItem = getItem(position);
holder_switch.img.setBackgroundResource(R.drawable.power_ico_50dp);
holder_switch.title.setText(led_opt[position]);
holder_switch.info.setText(led_optContext[position]);
holder_switch.Switch.setChecked(true);
convertView.setTag(holder_switch);
break;
case TYPE_SEEKBAR:
convertView = inflater.inflate(R.layout.listview_seekbar_row, parent, false);
holder_seekbar = new viewHolder_seekbar();
holder_seekbar.img = (ImageView)convertView.findViewById(R.id.img_sb);
holder_seekbar.title = (TextView)convertView.findViewById(R.id.title_sb);
holder_seekbar.info = (TextView)convertView.findViewById(R.id.info_sb);
Log.e("convertView = ", "NULL TYPE_SEEKBAR");
holder_seekbar.img.setBackgroundResource(R.drawable.rgb_ico_50dp);
holder_seekbar.title.setText(led_opt[position]);
holder_seekbar.info.setText(led_optContext[position]);
convertView.setTag(holder_seekbar);
break;
case TYPE_BUTTON:
convertView = inflater.inflate(R.layout.listview_button_row, parent, false);
holder_button = new viewHolder_button();
holder_button.img = (ImageView)convertView.findViewById(R.id.img_btn);
holder_button.title = (TextView)convertView.findViewById(R.id.title_btn);
holder_button.info = (TextView)convertView.findViewById(R.id.info_btn);
Log.e("convertView = ", "NULL TYPE_BUTTON");
holder_button.img.setBackgroundResource(R.drawable.dream_ico_50dp);
holder_button.title.setText(led_opt[position]);
holder_button.info.setText(led_optContext[position]);
convertView.setTag(holder_button);
break;
}
}else{
//有convertView，按样式，取得不用的布局
switch(type)
{
case TYPE_SWITCH:
holder_switch = (viewHolder_switch) convertView.getTag();
Log.e("convertView !!!!!!= ", "NULL TYPE_SWITCH");
break;
case TYPE_SEEKBAR:
holder_seekbar = (viewHolder_seekbar) convertView.getTag();
Log.e("convertView !!!!!!= ", "NULL TYPE_SEEKBAR");
break;
case TYPE_BUTTON:
holder_button = (viewHolder_button) convertView.getTag();
Log.e("convertView !!!!!!= ", "NULL TYPE_BUTTON");
break;
}
}
return convertView;
}
}
class viewHolder_switch{
/** 图片ID */
private ImageView img;
/** 标题 */
private TextView title;
/** 内容 */
private TextView info;
/** switch*/
private Switch Switch;
}
class viewHolder_seekbar{
/** 图片ID */
private ImageView img;
/** 标题 */
private TextView title;
/** 内容 */
private TextView info;
private SeekBar sb;
}
class viewHolder_button
{
private ImageView img;
/** 标题 */
private TextView title;
/** 内容 */
private TextView info;
/** 按钮名称 */
private String btnText;
}
MyAdapter listAdapter ;
protected void onCreate(Bundle savedInstanceState) {
//setTheme(16974123);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
{
ListView lv = (ListView) this.findViewById(R.id.listview_home);
listAdapter = new MyAdapter(this);
lv.setAdapter(listAdapter);
}
}
现在的问题就是如何使这个list包含三种布局并显示，不知道如何写，参考了不少，很多都是每个item都一致的布局，这个不一样，就不知如何下手了。
[解决办法]
getViewTypeCount如果为3，就可以放置3个不同的item。
同时这getView的时候，区分这三种Item，分别加载不同的xml文件即可。
[解决办法]
我这有个例子
http://download.csdn.net/detail/piaohong/5020778