在Adapter中添加存储勾选状态的List:
public class CalendarAdapter extends RecyclerView.Adapter {
private List calendarEvents;
private Context context;
List listCheck;
// 存储勾选框状态的map集合
@SuppressLint("UseSparseArrays")
private OnItemClickListener onItemClickListener;
public CalendarAdapter(List calendarEvents, Context context,List listCheck) {
this.calendarEvents = calendarEvents;
this.context = context;
this.listCheck=listCheck;
}
@Override
public CalendarViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.event_list_item, parent, false);
CalendarViewHolder calendarViewHolder = new CalendarViewHolder(view);
return calendarViewHolder;
}
@SuppressLint("SetTextI18n")
@Override
public void onBindViewHolder(CalendarViewHolder holder, int position) {
holder.position=position;
final CalendarEvent calendarEvent = calendarEvents.get(position);
int month = calendarEvent.getMonth();
int day = calendarEvent.getDay();
int hour = calendarEvent.getHour();
int minute = calendarEvent.getMinute();
String eventTag = calendarEvent.getEventTag();
if (calendarEvent.getMinute() == 0) {
holder.tv_event.setText(month+"月"+day+"日"+hour+"点"+eventTag);
} else {
holder.tv_event.setText(month+"月"+day+"日"+hour+"点"+minute+"分"+eventTag);
}
holder.itemView.setOnLongClickListener(v -> {
onItemClickListener.onItemLongClick(holder.getLayoutPosition(), holder.itemView);
return false;
});
// 设置CheckBox的状态
holder.cb_event.setChecked(listCheck.get(position));
}
@Override
public int getItemCount() {
return calendarEvents.size();
}
public class CalendarViewHolder extends RecyclerView.ViewHolder implements CompoundButton.OnCheckedChangeListener,View.OnClickListener {
private CheckBox cb_event;
private TextView tv_event;
private int position;
public CalendarViewHolder(View itemView) {
super(itemView);
cb_event = (CheckBox) itemView.findViewById(R.id.cb_event);
tv_event = (TextView) itemView.findViewById(R.id.tv_event);
cb_event.setOnCheckedChangeListener(this);
}
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (onItemClickListener != null){
onItemClickListener.setOnItemCheckedChanged(position,isChecked);
}
}
@Override
public void onClick(View v) {
if(onItemClickListener!=null){
if(cb_event.isChecked()){
cb_event.setChecked(false);
onItemClickListener.setOnItemClick(position,false);
}else {
cb_event.setChecked(true);
onItemClickListener.setOnItemClick(position,true);
}
}
}
}
/**
* itemView点击监听接口
*/
public interface OnItemClickListener {
void setOnItemClick(int position, boolean isCheck);
void onItemLongClick(int position, View itemView);
void setOnItemCheckedChanged(int position, boolean isCheck);
}
/**
* 给itemView设置监听器
*
* @param onItemClickListener 监听器
*/
public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
this.onItemClickListener = onItemClickListener;
}
}
在View中使用：
public class CalendarEventListFragment extends MateBaseFragment implements CalendarContract.View {
private static final String TAG = CalendarEventListFragment.class.getSimpleName();
@BindView(R.id.tv_eventDelete)
TextView tvEventDelete;
@BindView(R.id.tv_eventDeleteAll)
TextView tvEventDeleteAll;
@BindView(R.id.lv_all_event_list)
RecyclerView lvAllEventList;
Unbinder unbinder;
private CalendarContract.Presenter presenter;
private List calendarEventList;
private CalendarAdapter calendarAdapter;
private List listCheck;
public static CalendarEventListFragment newInstance() {
return new CalendarEventListFragment();
}
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_eventlist, container, false);
unbinder = ButterKnife.bind(this, rootView);
return rootView;
}
@Override
public void onResume() {
super.onResume();
setFragmentTitle(R.string.event_list_title);
presenter.subscribe();
}
@Override
public void onRefresh() {
presenter.refresh();
}
@Override
public void onPause() {
super.onPause();
presenter.unSubscribe();
}
@OnClick({R.id.tv_eventDelete, R.id.tv_eventDeleteAll})
public void EventDelete(View view) {
switch (view.getId()) {
case R.id.tv_eventDelete:
for (int i = calendarEventList.size() - 1; i >= 0; i--) {
if (listCheck.get(i)) {
listCheck.remove(i);
calendarEventList.remove(i);
deleteRemindItem(i, calendarEventList.get(i));
calendarAdapter.notifyItemRemoved(i);
calendarAdapter.notifyItemRangeChanged(0, listCheck.size());
}
}
break;
case R.id.tv_eventDeleteAll:
if (!isSelectAll) {
for (int i = 0; i < listCheck.size(); i++) {
listCheck.set(i, true);
}
isSelectAll = true;
} else {
for (int i = 0; i < listCheck.size(); i++) {
listCheck.set(i, false);
}
isSelectAll = false;
}
calendarAdapter.notifyDataSetChanged();
break;
}
}
@Override
public void onDestroyView() {
super.onDestroyView();
}
@Override
public void setPresenter(CalendarContract.Presenter presenter) {
this.presenter = presenter;
}
@Override
public CalendarContract.Presenter getPresenter() {
return presenter;
}
@Override
public void displayCalendar(List calendarEvents) {
calendarEventList = new ArrayList<>();
calendarEventList.clear();
calendarEventList.addAll(calendarEvents);
LinearLayoutManager layoutManager = new LinearLayoutManager(MateApplication.getInstance(), LinearLayout.VERTICAL, false);
lvAllEventList.setLayoutManager(layoutManager);
lvAllEventList.setItemAnimator(new DefaultItemAnimator());
lvAllEventList.addItemDecoration(new SpaceItemDecoration(24));
listCheck = new ArrayList<>();
for (int i = 0; i < calendarEventList.size(); i++) {
listCheck.add(i, false);
}
calendarAdapter = new CalendarAdapter(calendarEventList, MateApplication.getInstance(), listCheck);
lvAllEventList.setAdapter(calendarAdapter);
calendarAdapter.setOnItemClickListener(new CalendarAdapter.OnItemClickListener() {
@Override
public void setOnItemClick(int position, boolean isCheck) {
listCheck.set(position, isCheck);
}
@Override
public void onItemLongClick(int position, View itemView) {
}
@Override
public void setOnItemCheckedChanged(int position, boolean isCheck) {
listCheck.set(position, isCheck);
}
});
}
private void deleteRemindItem(int position, CalendarEvent calendarEvent) {
CalendarOperate.getInstance().deleteCalendar(calendarEvent);
CalendarUtil.cancelCalendarEvent(getActivity(), calendarEvent.getId());
//calendarEventList.clear();
//calendarAdapter.notifyItemRemoved(position);
}
/**
* 控制RecyclerView的间隔
*/
class SpaceItemDecoration extends RecyclerView.ItemDecoration {
int mSpace;
@Override
public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
super.getItemOffsets(outRect, view, parent, state);
outRect.left = mSpace;
outRect.right = mSpace;
outRect.bottom = mSpace;
if (parent.getChildAdapterPosition(view) == 0) {
outRect.top = mSpace;
}
}
public SpaceItemDecoration(int space) {
this.mSpace = space;
}
}
}
event_list_item.xml:
MyCheckboxStyle:
checkbox_style.xml: