recycleview的复用问题

来源：互联网发布：excel数据透视表在哪编辑：程序博客网时间：2024/05/17 22:37

其实很简单的问题我不知道我怎么变那么蠢了

我原来想让第0个item改变一下样式之类的，然后就写了这样的代码

@Override
public void onBindViewHolder(UseHelpViewHolder holder, int position) {

holder.tvQuestion.setText(data.get(position).getQuestion().getValue());
holder.tvAnswer.setText(data.get(position).getAnswer().getValue());

if(position == 0){

holder.tvQuestion.getPaint().setFlags(Paint.UNDERLINE_TEXT_FLAG);

holder.tvAnswer.setVisibility(View.GONE);

holder.tvQuestion.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(UseHelpActivity.this,SupportDetailActivity.class);
startActivity(intent);
}
});

}

}

然后发现滑下去滑上来的时候，出现了复用的问题，纠结了半天应该怎么弄

后面发现应该这样写

就是你之前用这个holder设置了第0个item的，那么当你设置另外的顺序的时候，应该把设置第0个的时候的那些属性取消掉

如果使用quickAdapter,那么则是

mAdapter = new QuickAdapter<UseHelpTo>(this, R.layout.item_use_help){

@Override
protected void convert(BaseAdapterHelper helper, UseHelpTo item) {
LOG.pwh("convert position:"+helper.getAdapterPosition());

helper.setText(R.id.tv_question, item.getQuestion().getValue());
helper.setText(R.id.tv_answer, item.getAnswer().getValue());

if(helper.getAdapterPosition() == 0){

TextView tvQuestion = helper.getTextView(R.id.tv_question);
TextView tvAnswer = helper.getTextView(R.id.tv_answer);

tvQuestion.getPaint().setFlags(Paint.UNDERLINE_TEXT_FLAG);
tvAnswer.setVisibility(View.GONE);
tvQuestion.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(UseHelpActivity.this,SupportDetailActivity.class);
startActivity(intent);
}
});

}
else{
TextView tvQuestion = helper.getTextView(R.id.tv_question);
TextView tvAnswer = helper.getTextView(R.id.tv_answer);

tvQuestion.getPaint().setFlags(Paint.HINTING_OFF);
tvAnswer.setVisibility(View.VISIBLE);
tvQuestion.setOnClickListener(null);
}

}
};

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