android-RxJava / RxBinding-检查订阅是否存在

我正在使用RxBinding并在onBindViewHolder方法的RecyclerView适配器中创建订阅,该订阅可重用项目.有没有简单的方法来检查是否已将订户分配给EditText对象,如果已删除,则删除该订户？

我的代码看起来像这样

public void onBindViewHolder(final ItemViewHolder holder, int position) {

    holder.text.setText(mProvider.get(position).text);
    Subscription textSub = RxTextView.textChanges(holder.text).subscribe(new Action1<CharSequence>() {
        @Override
        public void call(CharSequence charSequence) {
            ...
        }
    });
    subscriptions.add(textSub);
}

解决方法:

Is there anyway to check if I already assigned subscriber to an
EditText object and if so delete that subscription?

您可以将其保留为班级成员.例如.

Subscription textSub = Subscriptions.unsubscribed(); 

接着

public void onBindViewHolder(final ItemViewHolder holder, final int position) {

     holder.text.setText(mProvider.get(position).text);
     textSub.unsubscribe();
     textSub = RxTextView.textChanges(holder.text).subscribe(new Action1<CharSequence>() {
          @Override
          public void call(CharSequence charSequence) {
               ...
          }
      });
}

标签：android-recyclerview,rx-java,android,rx-binding
来源： https://codeday.me/bug/20191118/2024643.html