这是我的RecyclerView适配器类
public class TodoAdaptor extends RecyclerView.Adapter<TodoAdaptor.SingleTodoView> {
private CheckBox checkbox;
private TextView title, dueDate;
private Context context;
private ArrayList<SingleTodo> todoList;
private onItemCLickListener itemCLickListener;
public TodoAdaptor(Context context, ArrayList<SingleTodo> todoList, onItemCLickListener onItemClickListener) {
this.context = context;
this.todoList = todoList;
this.itemCLickListener = onItemClickListener;
}
@NonNull
@Override
public SingleTodoView onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.single_todo, parent, false);
return new SingleTodoView(v, itemCLickListener);
}
@Override
public void onBindViewHolder(@NonNull SingleTodoView holder, int position) {
SingleTodo singleTodo = todoList.get(position);
checkbox.setChecked(singleTodo.isComplete());
title.setText(singleTodo.getTitle());
if (singleTodo.isComplete()) {
title.setPaintFlags(title.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
Toast.makeText(context, "IsCompleted", Toast.LENGTH_SHORT).show();
} else {
title.setPaintFlags(title.getPaintFlags() & (~Paint.STRIKE_THRU_TEXT_FLAG));
Toast.makeText(context, "Not IsCompleted", Toast.LENGTH_SHORT).show();
}
if (singleTodo.getDueDate().isEmpty()) {
dueDate.setVisibility(View.GONE);
} else {
dueDate.setText(singleTodo.getDueDate());
}
}
@Override
public int getItemCount() {
return todoList.size();
}
class SingleTodoView extends RecyclerView.ViewHolder {
private SingleTodoView(@NonNull View itemView, final onItemCLickListener itemCLickListener) {
super(itemView);
checkbox = itemView.findViewById(R.id.todo_list_completed_checkbox);
title = itemView.findViewById(R.id.todo_list_title);
dueDate = itemView.findViewById(R.id.todo_list_due_date);
title.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
itemCLickListener.onTextClickListener(getAdapterPosition());
}
});
checkbox.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
itemCLickListener.onCheckboxClickListener(getAdapterPosition());
}
});
}
}
public interface onItemCLickListener {
void onTextClickListener(int position);
void onCheckboxClickListener(int position);
}
}
这是我的适配器
todoAdaptor = new TodoAdaptor(this, singleTodoArrayList, new TodoAdaptor.onItemCLickListener() {
@Override
public void onTextClickListener(int position) {
singleTodo = singleTodoArrayList.get(position);
singleTodo.setTitle("This is Test");
singleTodoArrayList.set(position, singleTodo);
todoAdaptor.notifyItemChanged(position);
}
@Override
public void onCheckboxClickListener(int position) {
singleTodo = singleTodoArrayList.get(position);
singleTodo.setComplete(!singleTodo.isComplete());
singleTodoArrayList.set(position, singleTodo);
todoAdaptor.notifyItemChanged(position);
}
});
这是我的SingleTodo班
package com.example.simpletodo.classes;
public class SingleTodo {
private int id;
private String title;
private String dueDate;
private boolean isComplete;
public SingleTodo(int id, String title, String dueDate, boolean isComplete) {
this.id = id;
this.title = title;
this.dueDate = dueDate;
this.isComplete = isComplete;
}
public int getId() {
return id;
}
public String getTitle() {
return title;
}
public String getDueDate() {
return dueDate;
}
public boolean isComplete() {
return isComplete;
}
public void setId(int id) {
this.id = id;
}
public void setTitle(String title) {
this.title = title;
}
public void setDueDate(String dueDate) {
this.dueDate = dueDate;
}
public void setComplete(boolean complete) {
isComplete = complete;
}
}
[每当我选中此复选框时,该项目的文本都应显示删除线,并且不能按预期工作
我在列表中有3个项目,当我单击复选框时,项目会被选中并且文本删除线有效,但是当我再次单击复选框时,复选框保持选中状态(尽管对象应该进行更新),并且删除线文本恢复为正常,并且必须再次单击复选框两次,复选框才能取消选中
另一个问题是,当我检查项目时,然后尝试检查其他项目时,当前项目文本被其他检查项目文本之一替换。图片 :默认:当我单击一次复选框时:当我再次单击复选框时:当我一个接一个地检查多个项目时(我没有更改任何项目的位置,而是先检查它们的默认顺序,再检查-按顺序-这就是我得到的)任何帮助表示赞赏。我只希望我的代码按预期工作。
我从this问题中找到了解决方案