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Listview 无法在列表视图中添加分隔符_Listview_Android Layout_List Separator - Fatal编程技术网

Listview 无法在列表视图中添加分隔符

Listview 无法在列表视图中添加分隔符,listview,android-layout,list-separator,Listview,Android Layout,List Separator,这是我的密码 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.email_list_main); emailResults = new ArrayList<GetEmailFromDatabase>(); //int[] colors =

这是我的密码

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.email_list_main);

        emailResults = new ArrayList<GetEmailFromDatabase>();

        //int[] colors = {0,0xFFFF0000,0};
        //getListView().setDivider(new GradientDrawable(Orientation.RIGHT_LEFT, colors));
        //getListView().setDividerHeight(2);

        emailListFeedAdapter = new EmailListFeedAdapter(this, R.layout.email_listview_row, emailResults);
        setListAdapter(this.emailListFeedAdapter);

        getResults();
        if(emailResults != null && emailResults.size() > -1){
            emailListFeedAdapter.notifyDataSetChanged();
        for(int i=0;i< emailResults.size();i++){
            try {
这里我比较当前日期和列表视图项日期,这是我的问题,日期匹配,但没有添加分隔符我尝试了很多方法,但都没有效果分隔符的代码如下

                if(Item_Date.compareTo(current_System_Date)==0){
                    if(index1){

                       emailListFeedAdapter.addSeparatorItem("SEPARATOR");
                       //i--;
                       index1=false;
                    }


                }
                else if(yeaterday_Date.compareTo(Item_Date1)==0){
                    if(index2){
                       emailListFeedAdapter.addSeparatorItem("SEPARATOR");
                       //i--;
                       index2 = false;
                    }

                }
                else if(Item_Date1.compareTo(Three_Days_Back)==0){
                    if(index3){
                       emailListFeedAdapter.addSeparatorItem("SEPARATOR");
                       //i--;
                       index3 = false;
                    }

                }
                } catch (ParseException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
        }
     }
}
在EmailListFeedAdapter中

     private TreeSet<Integer> mSeparatorsSet = new TreeSet<Integer>();
     public void addSeparatorItem(final String item) {
         //itemss.add(emailResults.get(0));
            // save separator position
            mSeparatorsSet.add(itemss.size() - 1);
            notifyDataSetChanged();
        }
    @Override
    public int getItemViewType(int position) {
         return mSeparatorsSet.contains(position) ? TYPE_SEPARATOR : TYPE_ITEM;
       }
         holder = new ViewHolder();
        switch (type) {

            case TYPE_ITEM:
                 emailView= inflater.inflate(R.layout.email_listview_row, null);

                break;
            case TYPE_SEPARATOR:
                 emailView= inflater.inflate(R.layout.item2, null);
                 holder.textView = (TextView)emailView.findViewById(R.id.textSeparator);
                 emailView.setTag(holder);
                 holder.textView.setText("SEPARATOR");
                break;
        }
如果有人知道,请告诉我哪里做错了


Thanx

我解决了这个问题,使用另一个xml布局在这个xml布局中所有内容都应该是相同的,但是在这个布局示例文本视图中添加另一个视图,并用不同的名称保存它,现在当你想添加分隔符时,你必须膨胀这个布局,而不是膨胀的常规布局。请记住,当您膨胀此布局时,它将取代适配器中的项,所以跳过该项需要返回到数组中的该位置,并在listview中显示该数据

     private TreeSet<Integer> mSeparatorsSet = new TreeSet<Integer>();
     public void addSeparatorItem(final String item) {
         //itemss.add(emailResults.get(0));
            // save separator position
            mSeparatorsSet.add(itemss.size() - 1);
            notifyDataSetChanged();
        }
    @Override
    public int getItemViewType(int position) {
         return mSeparatorsSet.contains(position) ? TYPE_SEPARATOR : TYPE_ITEM;
       }
         holder = new ViewHolder();
        switch (type) {

            case TYPE_ITEM:
                 emailView= inflater.inflate(R.layout.email_listview_row, null);

                break;
            case TYPE_SEPARATOR:
                 emailView= inflater.inflate(R.layout.item2, null);
                 holder.textView = (TextView)emailView.findViewById(R.id.textSeparator);
                 emailView.setTag(holder);
                 holder.textView.setText("SEPARATOR");
                break;
        }
       public static class ViewHolder {
        public TextView textView;
    }