部分重要代码
public class lvButtonAdapter extends BaseAdapter { private class ButtonViewHolder { TextView tv_Number; TextView tv_otheruser; ImageButton bt_challenge; int position; } private int mButtonClickPosition; private ArrayList<HashMap<String, Object>> mAppList; private LayoutInflater mInflater; private Context mContext; private String[] keyString; private int[] valueViewID; private ButtonViewHolder holder; public lvButtonAdapter(Context c, ArrayList<HashMap<String, Object>> appList, int resource, String[] from, int[] to) { mAppList = appList; mContext = c; mInflater = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE); keyString = new String[from.length]; valueViewID = new int[to.length]; System.arraycopy(from, 0, keyString, 0, from.length); System.arraycopy(to, 0, valueViewID, 0, to.length); } @Override public int getCount() { return mAppList.size(); } @Override public Object getItem(int position) { return mAppList.get(position); } @Override public long getItemId(int position) { return position; } public void removeItem(int position){ mAppList.remove(position); this.notifyDataSetChanged(); } @Override public View getView(int position, View convertView, ViewGroup parent) { if (convertView != null) { holder = (buttonViewHolder) convertView.getTag(); } else { convertView = mInflater.inflate(R.layout.lvitem, null); holder = new buttonViewHolder(); holder.tv_Number = (TextView)convertView.findViewById(R.id.tv_Number); holder.tv_otheruser = (TextView)convertView.findViewById(R.id.tv_otheruser); holder.bt_challenge = (ImageButton)convertView.findViewById(R.id.bt_challenge); convertView.setTag(holder); } holder.position = position;//获取每个item位置 HashMap<String, Object> appInfo = mAppList.get(position); if (appInfo != null) { String aname = (String) appInfo.get(keyString[1]); int mid = (Integer)appInfo.get(keyString[0]); int bid = (Integer)appInfo.get(keyString[2]); holder.appName.setText(aname); holder.appIcon.setImageDrawable(holder.appIcon.getResources().getDrawable(mid)); holder.buttonClose.setImageDrawable(holder.buttonClose.getResources().getDrawable(bid)); holder.buttonClose.setOnClickListener(new lvButtonListener(position)); } return convertView; } public ButtonViewHolder getViewHolder(View v){ if (v.getTag() == null){ return getViewHolder((View) v.getParent()); } return (buttonViewHolder ) v.getTag(); }//注意此方法的使用老外写的 class lvButtonListener implements OnClickListener { private int position; lvButtonListener(int pos) { position = pos; } @Override public void onClick(View v) { int vid=v.getId(); if (vid == holder.buttonClose.getId()){ ButtonViewHolder holder = getViewHolder(v); mButtonClickPosition = holder.position;//此处获得所点击button在list中的位置即:position //removeItem(position); } if (mButtonClickPosition == 0) { Bundle b = new Bundle (); Intent intent = new Intent(); intent.setClass(A.this,B.class); user2 = "用户" ; //+ id b.putString("user1", user1); b.putString("user2", user2); //user2为接收来的用户 intent.putExtras(b); startActivity(intent); } if (mButtonClickPosition >= 1){ Bundle b = new Bundle (); Intent intent = new Intent(); intent.setClass(A.this,B.class); user2 = "用户" + mButtonClickPosition; //+ id b.putString("user1", user1); b.putString("user2", user2); //user2为接收来的用户 intent.putExtras(b); startActivity(intent); } } }