本文介绍了如何跟踪回收视图项项目选择点击?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我要强调的项目 recyclerview
时,用户点击
上的任何项目,previous项目将为未选
请帮助?
I want to highlight the item of recyclerview
when user click
on any item and previous item will be unselected
please help?
推荐答案
有关这一点,你必须写一个选择。
For this you have to write a selector.
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@color/colorAccent" android:state_selected="true" />
<item android:drawable="@color/ash" android:state_selected="false" />
<item android:drawable="@color/ash" />
</selector>
在-为了获得对的onClick所期望的行为
你所做的项目中选择明确。
In-order to get the desired behavior on the onClick
you have to make the item selected explicitly.
public class CellAdapter extends RecyclerView.Adapter<CellAdapter.ViewHolder> {
private Context context;
private View prevView;
public CellAdapter(Context context) {
this.context = context;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.recycle_cell, parent, false);
CellAdapter.ViewHolder viewHolder = new ViewHolder(view);
return viewHolder;
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
}
@Override
public int getItemCount() {
return 10;
}
public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
public ViewHolder(View itemView) {
super(itemView);
itemView.setOnClickListener(this);
}
@Override
public void onClick(View v) {
if (prevView != null) {
prevView.setSelected(false);
}
v.setSelected(true);
prevView = v;
Toast.makeText(context, String.valueOf(getAdapterPosition()), Toast.LENGTH_SHORT).show();
}
}
}
和确保你已经点击设置如此recycleView。
And make sure that you have Set clickable true for recycleView.
<android.support.v7.widget.RecyclerView
android:id="@+id/recycle_view"
android:layout_width="wrap_content"
android:clickable="true"
android:focusable="true"
android:layout_height="wrap_content" />
这篇关于如何跟踪回收视图项项目选择点击?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!