列表多選配合取消和確定以及全選使用
阿新 • • 發佈:2018-11-27
效果
程式碼
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/rl_spinner_up" android:layout_width="match_parent" android:layout_height="50dp" android:background="@color/colorWhite"> <TextView android:id="@+id/tv_spinner_multi" android:layout_width="wrap_content" android:layout_height="match_parent" android:layout_centerHorizontal="true" android:gravity="center" android:text="" android:textAllCaps="false" android:textColor="@color/colorTv" /> <CheckBox android:id="@+id/cb_spinner_multi" android:layout_width="13dp" android:layout_height="9dp" android:layout_centerVertical="true" android:layout_marginLeft="8dp" android:layout_toRightOf="@id/tv_spinner_multi" android:background="@drawable/selector_item_type" android:button="@null" android:checked="true" android:clickable="false" android:focusable="false" android:gravity="center" /> </RelativeLayout>
public class MyAdapter extends BaseAdapter { private Context mContext; private List<String> mList; //用來控制CheckBox的選中狀況 private static HashMap<Integer, Boolean> isSelected; public MyAdapter(Context context, List<String> list, HashMap<Integer, Boolean> isSelected) { this.mList = list; this.mContext = context; this.isSelected = isSelected; initData(); } //初始化isSelected的資料 private void initData() { for (int i = 0; i < mList.size(); i++) { getIsSelected().put(i, false); } } private void initDataTrue() { for (int i = 0; i < mList.size(); i++) { getIsSelected().put(i, true); } } public void updata(HashMap<Integer, Boolean> isSelectedTrue) { for (int i = 0; i < isSelectedTrue.size(); i++) { this.isSelected.put(i, isSelectedTrue.get(i)); } notifyDataSetChanged(); } @Override public int getCount() { return mList.size(); } @Override public Object getItem(int position) { return mList.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(final int position, View convertView, ViewGroup parent) { ViewHolder holder; String bean = mList.get(position); LayoutInflater inflater = LayoutInflater.from(mContext); if (convertView == null) { convertView = inflater.inflate(R.layout.item_layout, parent, false); holder = new ViewHolder(); holder.tv_spinner_multi = convertView.findViewById(R.id.tv_spinner_multi); holder.cb_spinner_multi = convertView.findViewById(R.id.cb_spinner_multi); holder.rl_spinner_up = convertView.findViewById(R.id.rl_spinner_up); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } holder.tv_spinner_multi.setText(bean); //監聽checkBox並根據原來的狀態來設定新的狀態 holder.rl_spinner_up.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { if (isSelected.get(position)) { if (position == 0) { initData();//如果是0位置,就將所有的都設定成不選中 } else { isSelected.put(0, false);//有一個非0位置的不選中的時候,0位置的就不會被選中 isSelected.put(position, false); setIsSelected(isSelected); } } else { if (position == 0) { initDataTrue();//如果是0位置,就將所有的都設定成選中 } else { //非0位置的時候,判斷其他的子項是否已經選中 int count = 0; for (int i = 0; i < getIsSelected().size(); i++) { if (i != 0 && i != position && getIsSelected().get(i)) { count++; } } if (count == mList.size() - 2) { isSelected.put(0, true); } isSelected.put(position, true); setIsSelected(isSelected); } } notifyDataSetChanged(); } }); //根據選中情況設定字型顏色 if (isSelected.get(position)) { holder.tv_spinner_multi.setTextColor(mContext.getResources().getColor(R.color.colorAccent)); } else { holder.tv_spinner_multi.setTextColor(mContext.getResources().getColor(R.color.colorTv)); } // 根據isSelected來設定checkbox的選中狀況 holder.cb_spinner_multi.setChecked(getIsSelected().get(position)); return convertView; } public static HashMap<Integer, Boolean> getIsSelected() { return isSelected; } public static void setIsSelected(HashMap<Integer, Boolean> isSelected) { MyAdapter.isSelected = isSelected; } private static class ViewHolder { private TextView tv_spinner_multi; private CheckBox cb_spinner_multi; private RelativeLayout rl_spinner_up; } }
private String area[] = {"全部", "北京", "上海", "廣州", "深圳", "鄭州", "南京"}; private HashMap<Integer, Boolean> isSelectedArea = new HashMap<Integer, Boolean>(); private HashMap<Integer, Boolean> isSelectedAreaTrue = new HashMap<Integer, Boolean>(); listview = (ListView) findViewById(R.id.listview); myAdapter = new MyAdapter(this, Arrays.asList(area), isSelectedArea); listview.setAdapter(myAdapter); initData(); //初始化isSelectedTrue的資料 private void initData() { for (int i = 0; i < area.length; i++) { isSelectedAreaTrue.put(i, false); } } public void onClick(View view) { switch (view.getId()) { case R.id.tv_show: if (listview.getVisibility() == View.VISIBLE) { listview.setVisibility(View.GONE); } else { listview.setVisibility(View.VISIBLE); } break; case R.id.btn_spinner_cancel_area: listview.setVisibility(View.GONE); myAdapter.updata(isSelectedAreaTrue); break; case R.id.btn_spinner_ok_area: List<String> selectedListArea = new ArrayList<>(); listview.setVisibility(View.GONE); isSelectedArea = myAdapter.getIsSelected(); for (int i = 0; i < isSelectedArea.size(); i++) { isSelectedAreaTrue.put(i, isSelectedArea.get(i)); if (isSelectedArea.get(i).equals(true)) { selectedListArea.add(area[i]); } } break; } }