Question

将帖子像这样的东西...... 当按下时，如果有多于两个项目，则用逗号添加项目标签[并且当再次按下时用逗号删除项目标签这是我到目前为止所做的注意SeatP是textView，seat_n是列表中的选定项目标签

List<Seats> seatsList;
GridView myGrid;
MyGridAdapter adapter;
TextView seatlabel,pricelabel;
ImageView im;
String st,seat_n,seatp;

myGrid =（GridView）findViewById（R.id.grid）;

    seatlabel = (TextView) findViewById(R.id.labelSeat);
    pricelabel = (TextView) findViewById(R.id.labelPrice);

public void updateMessage（）{

    adapter = new MyGridAdapter(getApplicationContext(),R.layout.seat_item,seatsList);
    myGrid.setAdapter(adapter);
    myGrid.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

            st = seatsList.get(position).getStatus();
            seat_n = seatsList.get(position).getSeat_no();
            p = seatsList.get(position).getPrice();
            Log.d("price: ", p + "");

            //Log.d("status: ", seat_n + "");
            im = (ImageView) view.findViewById(R.id.seat1);

            if (st.equalsIgnoreCase("available")) {

                im.setImageResource(R.drawable.seat);
                myStatus = true;
                seatsList.get(position).setStatus("select");
                Log.d("status 1: ",myStatus+"");
                if (seatp.length()>1){
                    seatp = seatp+"," + seat_n;
                }else {
                    seatp = seatp+ seat_n;
                }
                pr = pr+p;

                seatlabel.setText(seatp.trim());
                pricelabel.setText(Integer.toString(pr));

            }
            if(st.equalsIgnoreCase("select")) {
               // Toast.makeText(getApplicationContext(), "seat: " + seatsList.get(position).getStatus(), Toast.LENGTH_SHORT).show();

                im.setImageResource(R.drawable.seat_avv);
                seatsList.get(position).setStatus("available");
                pr = pr-p;
                pricelabel.setText(Integer.toString(pr));
                seatp= seatlabel.getText().toString();
                //Log.d("seatlabel: ",ab);
                //seatp= seatp.replace(seat_n, "");
                if(seatp.length()>=5){
                    seatp= seatp.replace(","+seat_n, "");
                }else {
                    seatp= seatp.replace(seat_n+",", "");
                }
                Log.d("seatp Length: ",seatp.length()+"");
                /*if(seatp.length()>2){
                    seatp= seatp.replace(", "+seat_n, "");
                    Log.d("seatp Length2: ",seatp.length()+"");
                }else{
                    seatp= seatp.replace(seat_n+", ", "");
                    Log.d("Deleting: ",seat_n+"");
                    seatp = "";
                }*/
                Log.d("seatabzz: ",seatp);
                seatlabel.setText(seatp.trim());
            }
        }
    });

}

这里的逻辑适用于第二项或更多项但是没有为第一项工作

Answer 1

如果我理解你，你可以使用ArrayList 点击标签时调用addOrRemoveItem()，传递您需要添加的文本当点击save或next或其他任何内容时，请致电getAsCommaSeparator()

ArrayList<String> items = new ArrayList<>();

public void addOrRemoveItem(String item){
    if(items.contains(item)){
        items.remove(item);
    }else{
        items.add(item);
    }
}

public String getAsCommaSeparator(){
    return android.text.TextUtils.join(",",items);
}

如何在按下时添加项目标签，并在再次按下项目分隔符（，）时将其删除？

1 个答案: