删除功能

//点击条目长按删除
listview.setOnItemLongClickListener(new OnItemLongClickListener() {
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view,
final int position, long id) {
//创建AlertDialog Builder构建者
AlertDialog.Builder builder = new Builder(MainActivity.this);
//设置标题
builder.setTitle(“删除弹框”);
//设置图标
builder.setIcon(R.drawable.ic_launcher);
//设置内容
builder.setMessage(“确定删除吗？”);
//确定
builder.setPositiveButton(“确定”, new DialogInterface.OnClickListener() {
@Override
     public void onClick(DialogInterface dialog, int which) {
      list.remove(position);
      adapter.notifyDataSetChanged();
      
     }
    });
       //取消
       builder.setNegativeButton(“取消”, new DialogInterface.OnClickListener() {
     
     @Override
     public void onClick(DialogInterface dialog, int which) {
      // TODO Auto-generated method stub
      
     }
    });
       builder.show();
    return true;
   }
  });