遇到的问题
TextWatcher 的afterTextChanged 方法会被执行多次，尤其切换tab之后 ，adapter 数据重新设置 ，但是仍然会执行多次，最开始不得不用线程池去监听 next button 状态；
解决方法
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder,final int position) {
if (holder ==null)return;
// final int pos = holder.getAdapterPosition();
final LoginconfigFieldRsp data =datas.get(position);
if (holderinstanceof AccountViewHolder) {
final AccountViewHolder accountViewHolder = (AccountViewHolder) holder;
//避免TextWatcher被调用，提前将他移除。
if (accountViewHolder.accountinput.getTag()instanceof ExpandTextWatcher) {
accountViewHolder.accountinput.removeTextChangedListener((ExpandTextWatcher) (accountViewHolder.accountinput.getTag()));
}
accountViewHolder.accoundlab.setText(data.getLabel());
accountViewHolder.accountinput.setText(data.getInputvalue());
accountViewHolder.accountinput.setHint(String.format(tips, data.getLabel()));
accountViewHolder.accountinput.setOnFocusChangeListener(new ExpandOnFocusChangeListener(position, accountViewHolder.ivaccountclear, data));
if (data.isShowClear()) {
accountViewHolder.ivaccountclear.setVisibility(View.VISIBLE);
}else {
accountViewHolder.ivaccountclear.setVisibility(View.INVISIBLE);
}
accountViewHolder.ivaccountclear.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
data.setInputvalue("");
accountViewHolder.accountinput.setText("");
accountViewHolder.accountinput.setHint(String.format(tips,data.getLabel()));
notifyItemChanged(position);
}
});
ExpandTextWatcher expandTextWatcher =new ExpandTextWatcher(position, accountViewHolder.ivaccountclear, data);
accountViewHolder.accountinput.addTextChangedListener(expandTextWatcher);
accountViewHolder.accountinput.setTag(expandTextWatcher);
}
}
