我正在将Gridlayout for Books应用程序中的Cardview与Recycleview一起使用,该应用程序将从Json获取。我正在寻找打开不同的网址,这将为每个项目下载单独的书籍。我该如何创建这个... ??
下面是我的适配器
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
private List<Model> mDataset;
private ImageLoader mImageLoader;
// Provide a reference to the views for each data item
// Complex data items may need more than one view per item, and
// you provide access to all the views for a data item in a view holder
public static class ViewHolder extends RecyclerView.ViewHolder {
// each data item is just a string in this case
public TextView nameText;
public TextView phoneText;
public NetworkImageView image;
@SuppressLint("WrongViewCast")
public ViewHolder(View v) {
super(v);
nameText = v.findViewById(R.id.name_text);
phoneText = v.findViewById(R.id.phone_text);
image = v.findViewById(R.id.imgAvatar);
image.setDefaultImageResId(R.mipmap.ic_launcher);
v.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(v.getContext(),"Position: "+getAdapterPosition(), Toast.LENGTH_SHORT).show();
}
});
}
}
// Provide a suitable constructor (depends on the kind of dataset)
public MyAdapter(List<Model> myDataset, Context mCOntext) {
Log.d("TEST",myDataset.get(0).getName());
mDataset = myDataset;
mImageLoader = MySingleton.getInstance(mCOntext).getImageLoader();
}
// Create new views (invoked by the layout manager)
@Override
public MyAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
int viewType) {
// create a new view
View v = LayoutInflater.from(parent.getContext())
.inflate(R.layout.card_view, parent, false);
// set the view's size, margins, paddings and layout parameters
ViewHolder vh = new ViewHolder(v);
return vh;
}
// Replace the contents of a view (invoked by the layout manager)
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
// - get element from your dataset at this position
// - replace the contents of the view with that element
//holder.mTextView.setText(mDataset.get(position).getName());
Log.d("TEST","Printing Names onBindView Holder"+mDataset.get(position).getName());
holder.nameText.setText(mDataset.get(position).getName());
holder.phoneText.setText(mDataset.get(position).getPhone());
holder.image.setImageUrl(mDataset.get(position).getImage(),mImageLoader);
}
// Return the size of your dataset (invoked by the layout manager)
@Override
public int getItemCount() {
return mDataset.size();
}
}
下面是我的网格布局的屏幕截图
谢谢。
答案 0 :(得分:0)
每本书都有URL吗?如果是这样,您可以将其存储在Model
中。然后,您可以将其存储在ViewHolder中并在OnClickListener
中进行检索。
这是
Model.java
public class Model {
// your model
private String mUrl;
String getUrl() {
return mUrl;
}
}
MyAdapter.java
public static class ViewHolder extends RecyclerView.ViewHolder {
// each data item is just a string in this case
public TextView nameText;
public TextView phoneText;
public NetworkImageView image;
public String url;
@SuppressLint("WrongViewCast")
public ViewHolder(View v) {
super(v);
nameText = v.findViewById(R.id.name_text);
phoneText = v.findViewById(R.id.phone_text);
image = v.findViewById(R.id.imgAvatar);
image.setDefaultImageResId(R.mipmap.ic_launcher);
v.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(v.getContext(),"Position: "+getAdapterPosition(), Toast.LENGTH_SHORT).show();
// you can use url here
}
});
}
}
// ...
// Replace the contents of a view (invoked by the layout manager)
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
// - get element from your dataset at this position
Model model = mDataset.get(position);
// - replace the contents of the view with that element
//holder.mTextView.setText(model.getName());
Log.d("TEST","Printing Names onBindView Holder"+mDataset.get(position).getName());
holder.nameText.setText(model.getName());
holder.phoneText.setText(model.getPhone());
holder.image.setImageUrl(model.getImage(),mImageLoader);
holder.url = model.getUrl();
}