java – 在RecyclerView中从ViewHolder调用活动?
发布时间:2020-12-15 02:50:33 所属栏目:Java 来源:网络整理
导读:我有一个RecyclerView加载我的String数组的内容工作正常,但我想根据他们按下的视图打开一个新的活动. 我所做的是创建一个名为类的数组,如下所示: array name="classes" itemClassOne/item itemClassTwo/item itemClassThree/item itemClassFour/item/array
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我有一个RecyclerView加载我的String数组的内容工作正常,但我想根据他们按下的视图打开一个新的活动.
我所做的是创建一个名为类的数组,如下所示: <array name="classes">
<item>ClassOne</item>
<item>ClassTwo</item>
<item>ClassThree</item>
<item>ClassFour</item>
</array>
它们存储在一个数组中,并传递给我的MainActivityList适配器: String[] classes = resource.getStringArray(R.array.classes); MainActivityList adapter = new MainActivityList(titles,content,images,classes); recyclerView.setAdapter(adapter); 我已经设法将OnClickListener添加到ViewHolder并输出为每个视图分配给日志的??类,但是我无法弄清楚或开始工作,如何启动另一个活动. 例如,类名将类似于ClassOne.class public class MainActivityList extends RecyclerView.Adapter<MainActivityList.ViewHolder> {
private String[] mTitles;
private String[] mContent;
private String[] mClasses;
private TypedArray mImages;
private Context context;
public MainActivityList(String[] titles,String[] content,TypedArray images,String[] classes) {
this.mTitles = titles;
this.mContent = content;
this.mImages = images;
this.mClasses = classes;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup viewGroup,int i) {
final View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.activity_main_card,viewGroup,false);
ViewHolder vh = new ViewHolder(v);
v.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
ViewHolder vh = (ViewHolder)v.getTag();
Log.v("DEBUG","Clicked" + vh.classes);
}
});
return vh;
}
public void onBindViewHolder(ViewHolder holder,int position) {
holder.titleView.setText(mTitles[position]);
holder.contentView.setText(mContent[position]);
holder.imageView.setImageDrawable(mImages.getDrawable(position));
holder.classes = mClasses[position];
}
public class ViewHolder extends RecyclerView.ViewHolder {
public TextView titleView;
public TextView contentView;
public ImageView imageView;
public String classes;
public ViewHolder(View v) {
super(v);
titleView = (TextView) v.findViewById(R.id.card_title);
contentView = (TextView) v.findViewById(R.id.card_content);
imageView = (ImageView)v.findViewById(R.id.card_image);
v.setTag(this);
}
}
@Override
public int getItemCount() {
return mTitles.length;
}
}
解决方法
我也在寻找解决方案,我找到了这篇文章:
http://venomvendor.blogspot.sg/2014/07/setting-onitemclicklistener-for-recycler-view.html 通过使用OnItemClickListener接口,您应该能够在活动中调用startActivity. adapter.SetOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(View v,int position) {
// This is in an Activity so should be able to start new activity,etc.
}
});
更新:我已经测试过,博客中提到的方法适合我. (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |
