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  • ListView和Button混合后,获取所点击button在ListView中的position

    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);
    							}
    }  
    }  
    

      

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  • 原文地址:https://www.cnblogs.com/firecode/p/2750032.html
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