我有一个Recyclerview，其中我有2个按钮。我想在点击按钮时在两个不同的视图之间切换。在我的recyclerview适配器类中，我已将视图填充为
public Offline_ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
view=LayoutInflater.from(parent.getContext()).inflate(R.layout.offline_data_card, null);
Offline_ViewHolder ovh = new Offline_ViewHolder(view);
return ovh;
但我不知道如何在按钮点击时使用2个视图。我已经附加了我想要点击按钮点击view 1
的视图我的完整代码如下所示：
Offline_Adapter.java：
public class Offline_Adapter extends RecyclerView.Adapter<Offline_ViewHolder> {
Context context;
RequestQueue mRequestQueue;
ImageLoader mImageLoader;
DBHelper myDB;
ArrayList<Offers> datas;
SparseBooleanArray selectedItems;
ActionMode mActionMode;
Button b1,b2;
public Offline_Adapter(Context context, ArrayList<Offers> datas) {
this.context = context;
this.datas = datas;
selectedItems = new SparseBooleanArray();
mRequestQueue = Volley.newRequestQueue(context);
mImageLoader = new ImageLoader(mRequestQueue, new ImageLoader.ImageCache() {
private final LruCache<String, Bitmap> mCache = new LruCache<String, Bitmap>(10);
public void putBitmap(String url, Bitmap bitmap) {
mCache.put(url, bitmap);
}
public Bitmap getBitmap(String url) {
return mCache.get(url);
}
});
}
@Override
public Offline_ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
b1=(Button)parent.findViewById(R.id.b1);
b2=(Button)parent.findViewById(R.id.b2);
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
view = LayoutInflater.from(v.getContext()).inflate(R.layout.offline_data_card, null);
view.setVisibility(View.VISIBLE);
}
});
b2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
view = LayoutInflater.from(v.getContext()).inflate(R.layout.offline_data_card_view2, null);
view.setVisibility(View.VISIBLE);
}
});
Offline_ViewHolder ovh = new Offline_ViewHolder(view);
return ovh;
}
@Override
public void onBindViewHolder(Offline_ViewHolder holder, final int position) {
String card_id = datas.get(position).getLe_id().toString();
String img_url = URL.IMAGE;
String Thumb_image = img_url + card_id + ".jpg";
if (Thumb_image == null || Thumb_image == "") {
holder.image.setImageResource(R.drawable.vg_placeholder);
} else {
holder.image.setImageUrl(Thumb_image, mImageLoader);
}
String font_path = "fonts/Roboto-Bold.ttf";
Typeface font = Typeface.createFromAsset(context.getAssets(), font_path);
holder.title.setTypeface(font);
holder.title.setText(datas.get(position).getTitle().toString());
String count = datas.get(position).getView_count();
count = Integer.valueOf(count).toString();
holder.v_count.setText(count);
holder.c_count.setText(datas.get(position).getComment_count());
holder.f_count.setText(datas.get(position).getFav_count());
holder.image.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String downloadpath = URL.DOWNLOAD;
String url_id = datas.get(position).getLe_id().toString();
String download_link = downloadpath + url_id + ".zip";
String file_title = datas.get(position).getTitle().toString();
String publishversion = datas.get(position).getPublish_ver().toString();
String fav = datas.get(position).getFav_count().toString();
String com = datas.get(position).getComment_count().toString();
String view = datas.get(position).getView_count().toString();
Intent intent = new Intent(context, Offline_view.class);
intent.putExtra("url_id", url_id);
intent.putExtra("d_url", download_link);
intent.putExtra("file_title", file_title);
intent.putExtra("publishV", publishversion);
intent.putExtra("fav", fav);
intent.putExtra("com", com);
intent.putExtra("view", view);
context.startActivity(intent);
}
});
}
@Override
public int getItemCount() {
return datas.size();
}
Offline_ViewHolder.class
public class Offline_ViewHolder extends RecyclerView.ViewHolder {
NetworkImageView image;
TextView title;
TextView tv1,v_count,c_count,f_count;
Offline_Adapter adapter;
public Offline_ViewHolder(View itemView) {
super(itemView);
image=(NetworkImageView)itemView.findViewById(R.id.img_thumbnail);
title=(TextView)itemView.findViewById(R.id.name);
v_count= (TextView) itemView.findViewById(R.id.viewcount_txt);
c_count= (TextView) itemView.findViewById(R.id.comment_text);
f_count= (TextView) itemView.findViewById(R.id.fav_text);
}
}
答案 0 :(得分：0)
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
if(position==0){
youbutton.setOnclickListener();
}else{
}
}
在onBindViewHolder中使用位置。
答案 1 :(得分：0)
你这里做错了
@Override
public Offline_ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
b1=(Button)findViewById(R.id.b1);
b2=(Button)findViewById(R.id.b2);
为什么要在RecyclerView Adapter类的onCreateViewHolder（）中执行此操作？从您的代码看，这些按钮似乎在Activity或Fragment布局中。对？ 如果是，请在Activity片段中找到它们并设置Click Listener to them。
下一步：在Adapter类中创建一个公共方法，在Adapter类中创建一个状态变量。
public class Offline_Adapter extends RecyclerView.Adapter<Offline_ViewHolder> {
Context context;
private boolean mIsOfflineMode = false;
RequestQueue mRequestQueue;
ImageLoader mImageLoader;
DBHelper myDB;
ArrayList<Offers> datas;
和适配器中的公共方法
public void setOfflineSate(boolean state){
mIsOfflineMode = state;
this.notifyDataSetChanged();
}
下一步：现在是时候来处理适配器的onCreateViewHolder方法中的视图了。
@Override
public Offline_ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view ;
if(isOffileMode){
view = LayoutInflater.from(v.getContext()).inflate(R.layout.offline_data_card, null);
}else{
view=LayoutInflater.from(v.getContext()).inflate(R.layout.offline_data_card_view2,null);
}
Offline_ViewHolder ovh=new Offline_ViewHolder(view);
return ovh;
}
现在在您的活动或片段类中，处理按钮单击
// I am supposing you have Offline_Adapter Object as mOffLineAdapter and is initialized
b1=(Button)parent.findViewById(R.id.b1);
b2=(Button)parent.findViewById(R.id.b2);
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mOffLineAdapter.setOfflineSate(false);
}
});
b2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mOffLineAdapter.setOfflineSate(true);
}
});