Android弹出窗口中ListView显示内容

1.之所以选择弹出窗口中显示，是为了一段代码可以学会两个功能，弹出窗口和ListView显示请求的值

2.弹出窗口的代码：

  if(mPopupWindow == null){

   LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);

   View mView = inflater.inflate(R.layout.pop_window,null);  //R.layout.pop_window是弹出的窗口布局

   ListView mListView = (ListView)mView.findViewById(R.id.carList);

  CarsApater apdater = new CarsAdapter(getApplicationContext(),carList);

  mListView.setAdapter(adapter);

  WindowManager windowManager = (WindowManager)getSystemService(Context.WINDOW_SERVICE);

  mPopupWindow = new PopupWindow(mView.windowManager.getDefaultDisplay().getWidth(),mView.windowManager.getDefaultDisplay().getHeidht()/3); //设置弹出窗口大小

  mPopupWindow.setFocusable(true); //使其聚焦

  mPopupWindow.setOutsideTouchable(true);  //设置允许在外点击消失

  mPopupWindow.showAsDropDown(parent,windowManager.getDefaultDisplay().getWidth()/2-    mPopupWindow,getWidth()/2,windowManager.getDefaultDisplay().getHeidht());                  //parent在自己代码中是onClick(View parent)

}

2.CarsAdpter代码：

  public class CarsAdapter extends BaseAdapter{

    private List<Map<String,Object>> data = new ArrayList<Map<String,Object>>();

    private int mCount =0;

    private Context context;

   

    public CarsAdapter(Context context,List<Map<String,Object>> data){

     this.context = context;

     this.data = data;

   }

    @Override

    public int getCount(){

    return data.size;

  }

     @Override

    public Object getItem(int position){

    return data.get(position);

  }

     @Override

    public long getItemId(int position){

     return position;

  }

   @Override

  public View getView(int position,View convertView,ViewGroup parent){

        ViewHolder tag = null;

       if(convertView == null){

         convertView = LayoutInflater.from(context).inflate(getLayoutResource(),null);

         tag = getTag(convertView);

         convertView.setTag(tag);

       }else{

         tag = (ViewHolder) convertView.getTag();

       }

       try{

          Map<String,Object> carPath = data.get(position);

          bindData(tag,carPath);

       }catch(Exception e){

         

       }

      return convertView;

  }

   static class ViewHolder{

       TextView carNo,ownerName,speed;

       ImageButton vedioBtn;

  }

   public void bindData(ViewHolder tag,Map<String,Object> data){

     tag.carNo.setText(data.get("carNo").toString());

     tag.ownerName.setText(data.get("ownerName").toString());

     tag.speed.setText(data.get("speed").toString());

     tag.videoBtn,setOnClickListener(new View.OnClickListener(){

         public void onClick(View arg0){

                String param="XXXXXXXXXxx";

                ComponentName componentName = new ComponentName("package","package.MainActivity");         //第一个参数是其他应用的包名，第二个参数是要启动Activity

                Intent intent = new Intent();

                Bundle bundle = new Bundle();

                bundle.putString("xx",params);

                intent.setComponent(componentName);

                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

                 context.startActivity(intent);

            }

      }); 

  }

   public int getLayoutResource(){

       return R.layout.item_car;

  }

   public ViewHolder getTag(View convertView){

       ViewHolder mViewHolder = new ViewHolder();

       mViewHolder.carNo = (TextView) convertView.findViewById(R.id.carNo);

       mViewHolder.ownerName = (TextView) convertView.findViewById(R.id.carNo);

       mViewHolder.speed = (TextView) convertView.findViewById(R.id.carNo);

       mViewHolder.videoBtn = (ImageButton) convertView.findViewById(R.id.videoBtn);

       return mViewHolder;

 }

  public void addNewsItem(List<Map<String,Object>> newsItemCollection){

       data.addAll(newItemCollection);

  }

}